Open-File Report 95-77
A bibliography of some geophysical computer programs,
databases, and maps from the U.S. Geological Survey,
1971-1994
by Viki Bankey and Walter L. Anderson
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards. The
data and software listed in this report was prepared by an agency of the United States Government. Neither the United
States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or
assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus,
product, or process disclosed in this report. Any reference to any specific commercial product, process, or service by trade
name, manufacturer, or otherwise is for descriptive purposes only and does not imply endorsement, recommendation, or
favoring by the USGS.
GRAVITY, MAGNETIC, AND RADIOMETRIC DATA COMPILATIONS AND MAPS
SOURCE CODE PUBLICATIONS
SOFTWARE AVAILABLE BY ELECTRONIC COMMUNICATION
POTENTIAL FIELDS (GRAVITY AND MAGNETIC) SOURCE CODES
REMOTE SENSING SOURCE CODES AND PROCEDURES
SHALLOW SEISMIC AND BOREHOLE GEOPHYSICS SOURCE CODES
ELECTRICAL AND ELECTROMAGNETIC SOURCE CODES
SPECTROSCOPY SOURCE CODES AND DIGITAL LIBRARIES
ADDRESSES FOR AGENCIES MENTIONED IN REPORT
APPENDIX A: EM SOFTWARE BY WALTER L. ANDERSON
APPENDIX B: HAND-HELD CALCULATOR PROGRAMS BY D.L. CAMPBELL
INTRODUCTION
Scientists of the U.S. Geological Survey (USGS) have written an extensive amount of computer
source codes in order to process and interpret geophysical data including gravity, magnetics,
radiometrics, electrical and electromagnetics, remote sensing, spectroscopy, borehole geophysics,
and some shallow seismic processing. In addition, compiled data in the form of maps or data bases
are available for gravity, magnetics, and aeroradiometrics. This report lists some source codes, data
bases, and map compilations that are currently available. Although the papers referenced here are
authored by USGS employees, many are published by cooperating agencies, such as state geological
surveys.
The bibliography is based on the publications of working groups in the USGS known to the authors,
and does not include all geophysical source codes published by the USGS (notable omissions
include seismology and geomagnetism). Entries were included that reflect the disciplines of these
working groups. Some source code that was determined to be superceded or obsolete is not included
in this report.
The USGS publishes a free monthly periodical, "New Publications of the U.S. Geological Survey,"
and all future USGS publications will be listed there (address for subscription is found at the end of
this report). Addresses for sources of data, publications, and other information are listed with Web
links at the end of this report. Any use of trade, product, or company names in this report is for
descriptive purposes only and does not imply endorsement by the U.S. Government.
The USGS has flown or contracted many aeromagnetic surveys. Following is a list of open-file
reports that reference nearly all of these surveys:
Hill, P.L., 1991a, Bibliographies and location maps of aeromagnetic and aeroradiometric
publications for the states west of approximately 104o longitude (exclusive of Alaska and Hawaii):
U.S. Geological Survey Open-File Report 91-370-A, 173 p.
Hill, P.L., 1991b, Bibliographies and location maps of aeromagnetic and aeroradiometric
publications of the states west of the Mississippi River and east of approximately 104o longitude:
U.S. Geological Survey Open-File Report 91-370-B, 72 p.
Hill, P.L., 1991c, Bibliographies and location maps of aeromagnetic and aeroradiometric
publications for the states east of the Mississippi River and north of the Ohio and Potomac Rivers:
U.S. Geological Survey Open-File Report 91-370-C, 105 p.
Hill, P.L., 1991d, Bibliographies and location maps of aeromagnetic and aeroradiometric
publications for the states east of the Mississippi River and south of the Ohio and Potomac Rivers:
U.S. Geological Survey Open-File Report 91-370-D, 68 p.
Hill, P.L., 1991e, Bibliographies and location maps of aeromagnetic and aeroradiometric
publications for Alaska and Hawaii: U.S. Geological Survey Open-File Report 91-370-E, 36 p.
Hill, P.L., 1991f, Bibliographies and location maps of aeromagnetic and aeroradiometric
publications for Puerto Rico and large areas of the conterminous United States: U.S. Geological
Survey Open-File Report 91-370-F, 36 p.
Sikora, R.F., Ponce, D.A., and Oliver, H.W., 1993, Status of aeromagnetic survey coverage of
southwestern Nevada and southeastern California: U.S. Geological Survey Open-File Report 93-44,
18 p.
Publicly available geophysical data for the United States include original gravity, aeromagnetic,
and radiometric data, as well as computer-generated map and data-base compilations of these data.
Two such cooperative products are the gravity and magnetic gridded data that were used to compile
the Geological Society of America's 1988 gravity and magnetic anomaly maps of North America,
available from the National Geophysical Data Center (NGDC). A CD-ROM of magnetic data
gridded at 2 km (extracted from the DNAG set), gravity data gridded at 4 km (Simpson and others,
1987), and topographic data for the conterminous U.S. and additional software is listed below
(Phillips and others).
Gravity, magnetic, and radiometric maps are divided below into two sections. The first section
includes maps that cover more than one state. The second section includes maps that primarily
cover one state. Numerous compilations have been published that cover areas smaller than a
complete state, and those reports are not listed here.
GRAVITY, MAGNETIC, AND RADIOMETRIC DATA COMPILATIONS AND MAPS
Bankey, Viki, 1992, Complete Bouguer gravity, isostatic residual gravity, and related geophysical
maps centered on the Idaho batholith and Challis volcanic field, lat. 42o-47o, lon. 110o-118o: U.S.
Geological Survey Geophysical Investigations Map GP-995, scale 1:1,000,000.
Bond, K.R., and Zietz, Isidore, 1987, Composite magnetic anomaly map of the conterminous United
States west of 96o longitude: U.S. Geological Survey Geophysical Investigations Map GP-977, scale
1:2,500,000.
Cady, J.W., 1992, Digital topographic map centered on the Idaho batholith and Challis volcanic
field, lat. 42o-47o, lon. 110o-118o: U.S. Geological Survey Geophysical Investigations Map GP-996,
scale 1:1,000,000.
Cordell, Lindrith, Keller, G.R., and Hildenbrand, T.G., 1982, Complete Bouguer gravity anomaly
map of the Rio Grande Rift, Colorado, New Mexico, Texas: U.S. Geological Survey Geophysical
Investigations Map GP-949, scale 1:1,000,000.
Duval, J.S., Jones, W.J., Riggle, F.R., and Pitkin, J.A., 1989, Equivalent uranium map of the
conterminous United States: U.S. Geological Survey Open-File Report 89-478, scale 1:2,500,000.
Duval, J.S., Jones, W.J., Riggle, F.R., and Pitkin, J.A., 1990, Potassium and thorium maps of the
conterminous United States: U.S. Geological Survey Open-File Report 90-338, scale 1:2,500,000.
Duval, J.S., Riggle, F.E., Pitkin, J.A., and Jones, W.J., 1995, Potassium, uranium, and thorium
maps of the conterminous United States: U.S. Geological Survey Geophysical Investigations Map
GP-1010, scale 1:2,500,000.
Finn, C.A., Williams, D.L., Couch, R.W., Danes, Z.F., Pitts, G.S., Phillips, W.M., 1986, Gravity
anomaly and terrain maps of the Cascade Range, California, Oregon, Washington, and British
Columbia: U.S. Geological Survey Geophysical Investigations Map GP-972, scale 1:2,500,000.
Godson, R.H., compiler, 1982, Composite magnetic anomaly map of the United States, part
B--Alaska and Hawaii: U.S. Geological Survey Geophysical Investigations Map GP-954-B, scale
1:2,500,000, 9 p.
Godson, R.H., 1986a, Description of magnetic tape containing Alaska magnetic data in a gridded
format: National Technical Information Service Report PB86-197399, 5 p., magnetic tape.
Godson, R.H., 1986b, Description of magnetic tape containing conterminous United States magnetic
data in a gridded format: National Technical Information Service Report PB86-197423, 5 p.,
magnetic tape.
Godson, R.H., and Schiebe, D.M., 1982, Description of magnetic tape containing conterminous
United States gravity data in gridded format: National Technical Information Service Report
PB82-254798, 5 p., magnetic tape. [4-km grid, as opposed to NGDC's more recent 6-km grid]
Hildenbrand, T.G., Kucks, R.P., and Johnson, R.W., Jr., 1981, Aeromagnetic map of east-central
United States: U.S. Geological Survey Geophysical Investigations Map GP-948, scale 1:1,000,000.
Hildenbrand, T.G., Kucks, R.P., and Sweeney, R.E., 1983, Digital magnetic-anomaly map of
central United States--Description of major features: U.S. Geological Survey Geophysical
Investigations Map GP-955, scale 1:2,500,000.
Hildenbrand, T.G., Simpson, R.W., Godson, R.H., and Kane, M.F., 1982, Digital colored residual
and regional Bouguer gravity maps of the conterminous United States with cut-off wavelengths of
250 km and 1000 km: U.S. Geological Survey Geophysical Investigations Map GP-953-A, scale
1:7,500,000.
Jachens, R.C., Simpson, R.W., Saltus, R.W., and Blakely, R.J., 1985, Isostatic residual gravity
anomaly map of the United States (exclusive of Alaska and Hawaii): National Oceanic and
Atmospheric Administration, Geophysical Data Center Map, scale 1:2,500,000.
McCafferty, A.E., 1992, Aeromagnetic maps and terrace-magnetization map centered on the Idaho
batholith and Challis volcanic field, lat. 42o-47o, lon. 110o-118o: U.S. Geological Survey
Geophysical Investigations Map GP-994, scale 1:1,000,000.
Phillips, J.D., Duval, J.S., and Ambroziak, R.A., 1993, National geophysical data grids--gamma-ray, gravity, magnetic, and topographic data for the conterminous United States: U.S. Geological
Survey Digital Data Series DDS-9, 1 CD-ROM disk.
Saltus, R.W., and Jachens, R.C., 1995, Gravity and basin-depth maps for the Basin and Range
province, western United States: U.S. Geological Survey Geophysical Investigations Map GP-1012,
scale 1:2,500,000.
Simpson, R.W., Hildenbrand, T.G., Godson, R.H., and Kane, M.F., 1987, Digital colored Bouguer
gravity, free-air gravity, station location, and terrain maps for the conterminous United States: U.S.
Geological Survey Geophysical Investigations Map GP-953-B, scale 1:7,500,000.
Simpson, R.W., Jachens, R.C., Saltus, R.W., and Blakely, R.J., 1986, Isostatic residual gravity,
topographic, and first-vertical derivative gravity maps of the conterminous United States: U.S.
Geological Survey Geophysical Investigations Map GP-975, scale 1:750,000.
U.S. Geological Survey, 1986, Gravity anomaly map of the United States; Part A, Conterminous
United States: U.S. Geological Survey Geophysical Investigations Map GP-964, scale 1:2,500,000.
Zeitz, Isidore, compiler, 1982, Composite magnetic anomaly map of the United States, part
A--Conterminous United States: U.S. Geological Survey Geophysical Investigations Map
GP-954-A, scale 1:2,500,000, 59 p.
GRAVITY, MAGNETIC, AND RADIOMETRIC DATA COMPILATIONS AND MAPS
Gravity, magnetic, and radiometric data are being compiled for various states. A complete state
folio typically consists of (1) black-and-white contour gravity, aeromagnetic, and radiometric maps
printed at the scale of the state geologic map (which varies depending on the state but is usually
1:500,000, 1:750,000, or 1:1,000,000); (2) color maps at a reduced scale for the three geophysical
data sets and additional derivative products; and (3) a magnetic tape of data and grids. The maps
are published through the state geological survey or through the USGS. Entries without publication
dates have not been published but are nearly finished at the time of this report and are included to
aid the reader.
The following data tapes are available through the EROS Data Center:
Idaho: Gravity data
Idaho batholith: Gravity, aeromagnetic, derivative, and topographic gridded data
Ohio: Gravity, aeromagnetic, and radiometric data
Nevada: Gravity, aeromagnetic, and radiometric data
Lake Superior aeromagnetic grid
Utah: gravity data
Abrams, G.A., 1993, Complete Bouguer gravity anomaly map of the state of Colorado: U.S.
Geological Survey Miscellaneous Field Studies Map MF-2236, scale 1:500,000.
Abrams, G.A., and Knepper, D.H., 1994, Complete Bouguer gravity anomaly, isostatic-residual
gravity, horizontal gradient, and terrain maps of Colorado: U.S. Geological Survey Geophysical
Investigations Map GP-1009, scale 1:1,000,000.
Bankey, Viki, and Kleinkopf, M.D., 1988, Bouguer gravity anomaly map and four derivative maps
of Idaho: U.S. Geological Survey Geophysical Investigations Map GP-978, scale 1:1,000,000.
Bankey, Viki, Webring, Michael, Mabey, D.R., Kleinkopf, M.D., and Bennett, E.H., 1985,
Complete Bouguer gravity anomaly map of Idaho: U.S. Geological Survey Miscellaneous Field
Studies Map MF-1773, scale 1:500,000.
Bond, K. R., 1993, Complete Bouguer gravity anomaly map of Maine and vicinity: Maine
Geological Survey Department of Conservation Map, scale 1:500,000.
Bond, K.R., and Duval, J.S., 1995, Aerial gamma-ray maps of the regional surficial concentrations
of potassium, uranium, and thorium in West Virginia: U.S. Geological Survey Geophysical
Investigations Map I-2364-I, scale 1:1,000,000..
Bond, K.R., and Duval, J.S., 1995, Aerial gamma-ray maps of the regional surficial concentrations
of potassium, uranium, and thorium in Illinois: U.S. Geological Survey Geophysical Investigations
Map GP-1013.
Bothner, W.A., and Kucks, R.P., 1993, Bouguer gravity anomaly maps and four derivative maps of
New Hampshire, Vermont, and vicinity: U.S. Geological Survey Geophysical Investigations Map
GP-1005, scale 1:250,000 and 1:500,000.
Cady, J.W., 1991, Aeromagnetic map of Alaska from lat. 65o-68oN., lon. 141o-162oW.--Color-shaded relief: U.S. Geological Survey Geophysical Investigations Map GP-992, scale 1:500,000.
Cook, K.L., Bankey, Viki, Mabey, D.R., and DePangher, Michael, 1989, Complete Bouguer
gravity anomaly map of Utah: Utah Geological and Mineral Survey Map 122, scale 1:500,000.
Cordell, Lindrith, 1983, Geothermal resources of New Mexico--composite residual total intensity
aeromagnetic map of New Mexico: New Mexico Energy Institute Map, clear overlay, scale
1:500,000.
Duval, J.S., 1985, Aerial radiometric contour maps of surface concentrations of uranium,
potassium, and thorium in Ohio: U.S. Geological Survey Geophysical Investigations Map GP-968,
scale 1:500,000.
Duval, J.S., 1987, Aerial radiometric color contour maps and composite color map of regional
surface concentrations of uranium, potassium, and thorium in Ohio: U.S. Geological Survey
Geophysical Investigations Map GP-966, scale 1:1,000,000.
Duval, J.S., 1988, Aerial gamma-ray contour maps of regional surface concentrations of potassium,
uranium, and thorium in Nevada: U.S. Geological Survey Geophysical Investigations Map GP-982,
scale 1:750,000.
Duval, J.S., 1989, Aerial gamma-ray contour maps of regional surface concentrations of uranium,
potassium, and thorium, and composite-color maps of U, K, Th, and their ratios in New Mexico:
U.S. Geological Survey Geophysical Investigations Map GP-980, scale 1:1,000,000.
Duval, J.S., 1989, Aerial gamma-ray color contour maps of regional surface concentrations of
potassium, uranium, and thorium in New Mexico: U.S. Geological Survey Geophysical
Investigations Map GP-979, scale 1:750,000.
Finn, C.A., 1984, Description of magnetic tape containing Washington state gravity anomaly data:
National Technological Information Service Report USGS-GD-85-001, magnetic tape.
Finn, C.A., Phillips, W.M., and Williams, D.L., 1984, Gravity maps of the state of Washington and
adjacent areas: U.S. Geological Survey Open-File Report 84-416, scale 1:250,000.
Finn, Carol, Phillips, W.M, and Williams, D.L., 1991, Gravity anomaly and terrain maps of
Washington: U.S. Geological Survey Geophysical Investigations Map GP-988, scale 1:1,000,000
and 1:500,000.
Godson, R.H., Zablocki, C.J., Pierce, H.A., Frayser, J.B., Mitchell, C.M., and Sneddon, R.A., 1981,
Aeromagnetic map of the Island of Hawaii: U.S. Geological Survey Geophysical Investigations Map
GP-946, scale 1:250,000.
Heigold, P.C., McGinnis, L.D., Ervin, C.P., and Kucks, R.P., 1993, Simple Bouguer gravity
anomaly map of Illinois: Illinois State Geological Survey Map 1, scale 1:500,000.
Hildenbrand, T.G., 1984, Complete Bouguer gravity anomaly map of Ohio: U.S. Geological Survey
Geophysical Investigations Map GP-962, scale 1:500,000.
Hildenbrand, T.G., 1986, Gravity anomaly maps of Ohio: U.S. Geological Survey Geophysical
Investigations Map GP-963, scale 1:1,000,000.
Hildenbrand, T.G., 1987, Filtered magnetic anomaly maps of Ohio: U.S. Geological Survey
Geophysical Investigations Map GP-967, scale 1:1,000,000.
Hildenbrand, T.G., and Kucks, R.P., 1984, Residual total intensity magnetic map of Ohio: U.S.
Geological Survey Geophysical Investigations Map GP-961, scale 1:500,000.
Hildenbrand, T.G., and Kucks, R.P., 1988a, Total intensity magnetic anomaly map of Nevada:
Nevada Bureau of Mines and Geology Map 93A, scale 1:750,000.
Hildenbrand, T.G., and Kucks, R.P., 1988b, Filtered magnetic anomaly maps of Nevada: Nevada
Bureau of Mines and Geology Map 93B, scale 1:1,000,000.
Hildenbrand, T.G., and Kucks, R.P., 1992, Filtered magnetic anomaly maps of Illinois: U.S.
Geological Survey Geophysical Investigations Map GP-999, scale 1:1,000,000.
Hildenbrand, T.G., and Kucks, R.P., 1992, Filtered magnetic anomaly maps of Missouri: U.S.
Geological Survey Geophysical Investigations Map GP-1000, scale 1:1,000,000.
Hildenbrand, T.G., Kucks, R.P., and Heigold, P.C., 1993, Total intensity magnetic anomaly map of
Illinois, Illinois State Geological Survey Map 2, scale 1:500,000.
Jachens, R.C., and Moring, B.C., 1990, Maps of the thickness of Cenozoic deposits and the isostatic
residual gravity over basement for Nevada: U.S. Geological Survey Open-File Report 90-404, scale
1:1,000,000.
Keller, G.R., and Cordell, Lindrith, 1983, Geothermal resources of New Mexico- -Bouguer gravity
anomaly map of New Mexico: New Mexico Energy Institute Map, clear overlay, scale 1:500,000.
Kitchen, N.E, Langenheim, V.E., Rambo, W.L., and Griscom, Andrew, 1991, Bouguer gravity
maps, rock property data, and principal facts for gravity data compiled for the island of Puerto Rico
and vicinity: U.S. Geological Survey Open-File Report 91-633A-B, 21 p., diskette.
Meyer, J.F., Jr., and Saltus, R.W., 1994, Merged aeromagnetic map of interior Alaska: U.S.
Geological Survey Geophysical Investigations Map GP-1014, scale 1:500,000.
Meyer, J.F., Jr., Saltus, R.W., Barnes, D.F., and Morin, R.L., 1996, Bouguer Gravity map of
interior Alaska: U.S. Geological Survey Geophysical Investigations Map GP-1016, scale
1:500,000.
Oliver, H.W., Chapman, R.H., Biehler, Shawn, Robbins, S.L., Hanna, W.F., Griscom, Andrew,
Beyer, L.A., and Silver, E.A., 1980, Gravity map of California and its continental margin:
California Department of Conservation, Division of Mines and Geology Map 3, scale 1:750,000.
Roberts, C.W., and Jachens, R.C., 19__, Aeromagnetic map of California: in press.
Roberts, C.W., Jachens, R.C., and Oliver, H.W., 1990, Isostatic residual gravity map of California
and offshore southern California: California Department of Conservation, Division of Mines and
Geology Map 7, scale 1:750,000.
Saltus, R.W., 1988, Bouguer gravity anomaly map of Nevada: Nevada Bureau of Mines and
Geology Map 94A, scale 1:750,000.
Saltus, R.W., 1989, Regional, residual, and derivative gravity maps of Nevada: Nevada Bureau of
Mines and Geology Map 94B, scale 1:1,000,000.
Snyder, S.L., 1992, Aeromagnetic gridded data for New Jersey: U.S. Geological Survey Open-File
Report 92-700 A-B, 11 p., 3 diskettes.
Snyder, S.L., 19__, Aeromagnetic anomaly map of New Jersey and parts of adjacent states: New
Jersey Geologic Map Series 9X-X, scale 1:100,000.
SOFTWARE AVAILABLE BY ELECTRONIC COMMUNICATION
The current release of potential-field software (Phillips and others) is available by clicking on this
link or by file transfer protocol (ftp) on the Internet by connecting to ftpext.usgs.gov/pub/cr/co/denver/musette (or
136.177.80.144).
If you cannot connect through the Web, log in as anonymous. Change directories (cd) to pub (an
area containing published source codes) or to tmp (to get source code or data you have previously
arranged with a scientist to receive). Within the pub directory are several subdirectories of interest.
Change directory to pf to access PF211.EXE (or the latest version). This file is a self-extracting
archive containing source code, data, and directory structure of the potential-field software for the
Microsoft DOS operating system for IBM-compatable personal computers. There is a README
file in the pf directory with further details.
The directory, pub/saltus , contains a UNIX tar (tape archive) file (hyperkit.tar) that contains the
source code and documentation for HYPERMAG (Saltus and Blakely, 1993, potential fields source
code, below). HYPERMAG is a UNIX-based program, and the files within hyperkit.tar file can be
listed on an UNIX system by using the command "tar tvf hyperkit.tar".
The directory, pub/anderson , contains source code for W.L. Anderson's programs INVDP and
INVTCI (see references for Anderson in section on electrical and electromagnetic source code).
The directory, pub/mwebring, contains source code for SAKI and MINC (see references for
Webring in potential fields source code section), as well as Webring's other current publicly
available software.
POTENTIAL FIELDS (GRAVITY AND MAGNETICS) SOURCE CODE
Three recent reports (Cordell and others, Grauch and others, and Phillips and others) contain
numerous data reduction and data interpretation programs for either IBM-PC compatible computers
or DEC VAX computers and are available on diskettes or by using anonymous ftp.
Recent source codes are commonly available on IBM-compatible diskettes within the Open-File
(usually as parts B and higher of the open-file report, with part A containing written documentation).
Earlier reports contain only a listing of source code. If a program is not available on diskette, a
version may be available from the program's author, to whom inquiries should be directed.
Blakely, R.J., 1977, Documentation for subroutine REDUC3, and algorithm for the linear filtering
of gridded magnetic data: U.S. Geological Survey Open-File Report 77-784, 14 p.
Blakely, R.J., 1981, A program for rapidly computing the magnetic anomaly over digital
topography: U.S. Geological Survey Open-File Report 81-298, 46 p. [program PFMAG3D]
Blakely, R.J., 1990, MEPDEP--A program to estimate depth to source along magnetic profiles: U.S.
Geological Survey Open-File Report 90-66, 15 p.
Blakely, R.J., 1994, Potential theory in gravity and magnetic applications: Cambridge, England,
Cambridge University Press, 441 p. [ Appendix B contains 29 subroutines]
Bracken, R.E., 1992, AEROBMG--a base magnetometer program incorporating a method for tying
aeromagnetic surveys to an established datum, in Roberts, C.A., ed.: Proceedings of Geotech '92,
August 29-September 1, 1992, Denver, CO, p. 119-129.
Campbell, D.L., 1983, BASIC programs to calculate gravity and magnetic anomalies for 2
1/2-dimensional prismatic bodies: U.S. Geological Survey Open-File Report 83-154, 37 p.
Chuchel, B.A., 1985, POLYGON--An interactive program for constructing and editing the
geometries of polygons using a color graphics terminal: U.S. Geological Survey Open-File Report
85-233 A-B, 91 p., 1 diskette.
Cordell, Lindrith, Phillips, J.D., and Godson, R.H., 1992, USGS potential-fields geophysics
software, version 2.0: U.S. Geological Survey Open-File Report 92-18 A-G, 18 p., 6 diskettes.
Godson, R.H., 1983a, GRAVPOLY--A modification of a three-dimensional gravity modeling
program: U.S. Geological Survey Open-File Report 83-346, 53 p.
Godson, R.H., 1983b, MAGPOLY--A modification of a three-dimensional magnetic modeling
program: U.S. Geological Survey Open-File Report 83-345, 62 p.
Godson, R.H., Bracken, R.E., and Webring, M.W., 1988, PCCONTUR version 1.0, a
microcomputer general purpose contouring program: U.S. Geological Survey Open-File Report
88-593, A--Documentation paper copy, 30 p.; B--Executable code and test data disk; C--Source
code disk; D--Plot system source code and library disk.
Godson, R.H, and Mall, M.R., 1989, Potential-field geophysical programs for IBM compatible
microcomputers, version 1.0: U.S. Geological Survey Open-File Report 89-197-A-F, 23 p., 5
diskettes. [almost all programs superceded by Cordell and others, above).
Godson, R.H., and Plouff, Donald, 1988, BOUGUER, version 1.0--A microcomputer
gravity-terrain-correction program: U.S. Geological Survey Open-File Report 88-644-A-B, 13 p., 1
diskette.
Godson, R.H., and Webring, M.W., 1982, CONTOUR--A modification of G.I. Evendon's general
purpose contouring program: U.S. Geological Survey Open-File Report 82-797, 73 p.
Grauch, V.J.S., 1984, TAYLOR--A Fortran program using Taylor series expansion for level-surface
or surface-level continuation of potential-field data: U.S.Geological Survey Open-File Report
84-501, 31 p.
Grauch, V.J.S., 1986, VARMAG--A Fortran program to implement the variable-magnetization
terrain-correction method for aeromagnetic data: U.S. Geological Survey Open-File Report 86-268,
52 p.
Grauch, V.J.S., Phillips, J.D., Hoover, D.B., Pitkin, J.A., Livo, K.E., and McCafferty, A.E., 1993,
Materials provided at the workshop Geophysical map interpretation on the PC, convened April
21-22, 1993: U.S. Geological Survey Open-File Report 93-560 A-D, 238 p., 14 diskettes. [contains
numerous software programs for gravity, magnetic, radiometric, and remote sensing program
REMAPP version 1.03 (see LIVO, K.E.)]
Hildenbrand, T.G., 1983, FFTFIL--A filtering program based on two-dimensional Fourier analysis:
U.S. Geological Survey Open-File Report 83-237, 61 p.
Jachens, R.C., and Roberts, C.W., 1981, Documentation for a Fortran program, ISOCOMP, for
computing isostatic residual gravity: U.S. Geological Survey Open-File Report 81-574, 26 p.
Phillips, J.D., 1979, ADEPT--A program to estimate depth to magnetic basement from sampled
magnetic profiles: U.S. Geological Survey Open-File Report 79-367, 37 p.
Phillips, J.D., 1992, TERRACE--a terracing procedure for gridded data, with FORTRAN programs
and VAX command procedure, Unix C-shell, and DOS batch file implementations: U.S. Geological
Survey Open-File Report 92-5 A-B, 20 p., 1 diskette.
Phillips, J.D., Duval, J.S., and Ambroziak, R.A., 1993, National geophysical data grids--gamma-ray, gravity, magnetic, and topographic data for the conterminous United States: U.S. Geological
Survey Digital Data Series DDS-9, 1 CD-ROM disk. [includes potential-field software version 2.1]
Plouff, Donald, 1977, Preliminary documentation for a Fortran program to compute gravity terrain
corrections based on topography digitized on a geographic grid: U.S. Geological Survey Open-File
Report 77-535, 43 p.
Plouff, Donald, 1993, User documentation for GVOUTERTC/1.001, Technical Contact, Donald
Plouff--Report prepared for Yucca Mountain Program Software Configuration Management
System: U.S. Geological Survey Administrative Report, 18 p., 1 diskette.
Sadek, H.S., Rashad, S.M., and Blank, H.R., 1984, Spectral analysis of aeromagnetic profiles for
depth estimation principles, software and practical application: U.S. Geological Survey Open-File
Report 84-849, 56 p.
Saltus, R.W., and Blakely, R.J., 1993, HYPERMAG--An interactive, 2- and 2 1/2-dimensional
gravity and magnetic modeling program, Version 3.5: U.S. Geological Survey Open-File Report
93-287, 39 p., 1 diskette. (also available using anonymous ftp)
Simpson, R.W., Jachens, R.C., and Blakely, R.J., 1983, AIRYROOT--A Fortran program for
calculating the gravitational attraction of an Airy isostatic root out to 166.7 km: U.S. Geological
Survey Open-File Report 83-883, 66 p.
Spielman, J.B., and Ponce, D.A., HANDTC, a FORTRAN program to calculate inner-zone terrain
corrections: U.S. Geological Survey Open-File Report 84-777, 20 p.
Sweeney, R.E., 1990, IGRFGRID--A program for creation of a total magnetic field (International
Geomagnetic Reference Field) grid representing the earth's main magnetic field: U.S. Geological
Survey Open-File Report 90-45A-B.
U.S. Geological Survey, 1989, Potential-field geophysical programs for VAX 7xx computers: U.S.
Geological Survey Open-File Report 89-115 A-D, 21 p., 3 diskettes. [all but a few of these
programs have been updated in Cordell and others].
Wagini, Alexander, 1985, An automatic program for the interpretation of two-dimensional gravity
and magnetic anomalies: U.S. Geological Survey Open-File Report 85-377, 68 p.
Webring, M.W., 1981, MINC--A gridding program based on minimum curvature: U.S. Geological
Survey Open-File Report 81-1224, 41 p.
Webring, M.W., 1985, SAKI--A Fortran program for generalized linear inversion of gravity and
magnetic profiles: U.S. Geological Survey Open-File Report 85-122, 104 p.
REMOTE SENSING SOURCE CODES AND PROCEDURES
The REMAPP (remote sensing array processing procedures) system is a series of programs for
processing satellite and aircraft imagery, such as Landsat Multi-Spectral Scanner (MSS) and
Thematic Mapper (TM), SPOT, NOAA, or other GIS (Geographical Information System) data.
TM and MSS data are available from EOSAT (Earth Observation Satellite Company), or EROS
Data Center (addresses at the end of this report). SPOT data are available from SPOT Image
Corporation. NOAA operational polar-orbiting satellite data, such as AVHRR (Advanced Very
High Resolution Radiometer) are available from the Satellite Data Services Division. Image
processing routines include mathematical operations, image statistics, contrast and edge
enhancements, spatial and color coordinate transformations, band ratioing, and masking. Processed
imagery can be output to film, paper, or magnetic media.
Duval, J.S., 1984, Computer program useful for quality control of an image-processing laboratory:
U.S. Geological Survey Open-File Report 84-218, 18 p.
Duval, J.S., 1985, Data processing programs for aerial gamma-ray data: U.S. Geological Survey
Open-File Report 85-359, 83 p.
Duval, J.S., 1982, Image processing equipment and procedures: U.S. Geological Survey Open-File
Report 82-534, 14 p.
Grauch, V.J.S., Phillips, J.D., Hoover, D.B., Pitkin, J.A., Livo, K.E., and McCafferty, A.E., 1993,
Materials provided at the workshop Geophysical map interpretation on the PC, convened April
21-22, 1993: U.S. Geological Survey Open-File Report 93-560 A-D, 238 p., 14 diskettes. [contains
numerous software programs for gravity, magnetic, radiometric, and remote sensing program
REMAPP version 1.03.]
Hummer-Miller, Susanne, 1989, A digital mosaicking algorithm allowing for an irregular join
"line": Photogrammetric Engineering and Remote Sensing, v. 55, no. 1, p. 43-47.
Hummer-Miller, Susanne, 1990, Noise removal and registration of TIMS remote sensing aircraft
data: Photogrammetric Engineering and Remote Sensing, v. 56, no. 1, p. 49-53.
Livo, K.E., 1990, REMAPP PC Remote Sensing Image Processing software for MS-DOS personal
computers, version 1.00: U.S. Geological Survey Open-File Report 90-88 A-E, 4 diskettes.
[compatable with potential fields data]
Livo, K.E., and Gallagher, A.J., 1991, REMAPP - PC Remote Sensing Image Processing software
for MS-DOS personal computers, version 2.00: U.S. Geological Survey Open-File Report 91-449
A-G, 83 p. [new data format, incompatable with potential-fields data]
Sawatzky, D.L., 1985, Programmer's guide to REMAPP, REMote sensing Array Processing
Procedures: U.S. Geological Survey Open-File Report 85-231, 21 p.
Sawatsky, D.L., and Simpson, S.L., 1994, Procedure for image mosaics: National Technical
Information Service Report M94-890, 10 p. and microfiche.
Simpson, S.L., 1986, Selected geological and geophysical remote sensing publications by U.S.
Geological Survey authors, 1961-1984: U.S. Geological Survey Open-File Report 86-41, 60 p.
Watson, Kenneth, 1971, A computer program of thermal modeling for interpretation of infrared
images: National Technical Information Service Report PB-203-578.
Watson, Kenneth, 1981, Topographic slope correction for analysis of thermal infrared images:
National Technical Information Service Report PB81-211781, 14 p.
Watson, Kenneth, 1982, Radiative transfer from a homogeneous half-space, a fast algorithm
solution: U.S. Geological Survey Open-File Report 82-986, 7 p.
Watson, Kenneth, 1992, A 2D FFT program for image processing with examples: U.S. Geological
Survey Open-File Report 92-265, 74 p.
SHALLOW SEISMIC AND BOREHOLE GEOPHYSICAL SOURCE CODES
This report includes some shallow seismic processing programs. Programs by Ackermann and
others (1982, 1983) can be obtained through Jackie Williams. Coal-seismic programs are available
through Bill Hasbrouck, who can help with unpublished modifications to his programs.
Ackermann, H.D., 1985, Shallow geological investigations with personal computers:
Geocompuphysics, v. 36, no. 5, p. 1569-1605.
Ackermann, H.D., Pankratz, L.W., and Dansereau, D.A., 1982, A comprehensive system for
interpreting seismic-refraction arrival-time data using interactive computer methods: U.S.
Geological Survey Open-File Report 82-1065, 268 p.
Ackermann, H.D., Pankratz, L.W., and Dansereau, D.A., 1983, Computer program modifications of
Open-File Report 82-1065; a comprehensive system for interpreting seismic-refraction arrival-time
data using interactive computer methods: U.S. Geological Survey Open-File Report 83-604, 2 p.
[updated for DEC PDP11-34A]
Chuchel, B.A., 1989, TURBOSEIS - An interactive program for constructing and editing models of
seismic refraction traveltime data using a color-graphics terminal : U.S. Geological Survey Open-File Report 89-567 A-B, 82 p, 1 diskette.
Hasbrouck, W.P., 1979, Coal-seismic computer programs in BASIC; Part 1, Store, plot, and edit
array data: U.S. Geological Survey Open-File Report 79-242, 35 p.
Hasbrouck, W.P., 1980a, Coal-seismic, desktop computer programs in BASIC; Part 2, Enter,
compute, edit, and store results of downhole, inhole, and crosshole investigations: U.S. Geological
Survey Open-File Report 80-669, 89 p.
Hasbrouck, W.P., 1980b, Coal-seismic, desktop computer programs in BASIC; Part 3, Compute,
tabulate, and plot normal moveout time: U.S. Geological Survey Open-File Report 80-670, 21 p.
Hasbrouck, W.P., 1980c, Coal-seismic, desktop computer programs in BASIC; Part 4, Transfer,
edit, and display observed data: U.S. Geological Survey Open-File Report 80-668, 46 p.
Hasbrouck, W.P., 1983a, Coal-seismic, desktop computer programs in BASIC; Part 5, Perform
X-square/T-square analyses and plot normal moveout lines on a seismogram overlay: U.S.
Geological Survey Open-File Report 83-350, 21 p.
Hasbrouck, W.P., 1983b, Coal-seismic, desktop computer programs in BASIC; Part 6, Develop rms
velocity functions and apply mute and normal moveout: U.S. Geological Survey Open-File Report
83-341, 29 p.
Hasbrouck, W.P., 1983c, Coal-seismic, desktop computer programs in BASIC; Part 7, Display and
compute shear-pair seismograms: U.S. Geological Survey Open-File Report 83-348, 41 p.
Hasbrouck, W.P., 1984a, Coal-seismic, desktop computer programs in BASIC; Part 8, Pick first
arrivals and align events on screen: U.S. Geological Survey Open-File Report 84-175, 23 p.
Hasbrouck, W.P., 1984b, Coal-seismic, desktop computer programs in BASIC; Part 9, Compute
static corrections using an ABC method applied to six-fold, two-way field data: U.S. Geological
Survey Open-File Report 84-334, 44 p.
Hasbrouck, W.P., 1985, Coal-seismic, desktop computer programs in BASIC; part 10, Construct
and apply one-dimensional synthetic seismograms: U.S. Geological Survey Open-File Report,
85-226, 99 p.
Hasbrouck, W.P., 1990a, A two-layer, multiple-coverage seismic refraction method with computer
programs in BASIC to expedite its application: U.S. Geological Survey Open-File Report 90-266,
86 p.
Hasbrouck, W.P., 1990b, A computer program in BASIC for construction of two-layer, seismic
refraction forward models within elevation and thickness of the upper layer change and velocities
vary laterally within both layers: U.S. Geological Survey Open-File Report 90-320, 49 p.
Hasbrouck, W.P., 1990c, Computer programs in HP-9845 BASIC for modeling and interpreting
multiple-layer, plane-interface shallow refraction seismics: U.S. Geological Survey Open-File
Report 90-473, 56 p.
Hasbrouck, W.P., and Bailey, L.F., 1984, The Lanczos-preconditioned, folded (sinx)/x
interpolator--Discussion and desktop-computer program in BASIC: U.S. Geological Survey
Open-File Report 84-226, 17 p.
Haeni, F.P., Granthan, D.G., and Ellefsen, Karl, 1987, Microcomputer-based version of SIPT; a
program for the interpretaion of seismic-refraction data: U.S. Geological Survey Open-File Report
87-103 A-B, 135 p., 2 diskettes.
Muller, D.C., 1985, Computer method to detect and correct cycle skipping on sonic logs, in 26th
Annual Logging Symposium, Transactions: Society of Professional Well Log Analysts, Paper R, v.
1, p. 1-18.
Nelson, P.H., Clutsom, F.G., Stoddard, C.E., Kibler, J.E., and Mikesell, J.L, 1992, Branch of
Geophysics well-logging system, operating manual: U.S. Geological Survey Administrative Report,
105 p.
Scott, J.H., 1977, SIPT--A seismic refraction inverse modeling program for timeshare terminal
computer systems: U.S. Geological Survey Open-File Report 77-365, 108 p.
Scott, J.H., 1977, SIPB--A seismic refraction inverse modeling program for batch computer systems:
U.S. Geological Survey Open-File Report 77-366, 108 p.
Scott, J.H., 1978, A computer program for borehole compensation of dual-detector density well
logs: U.S. Geological Survey Open-File Report 78-515, 7 p.
Scott, J.H., 1978, A FORTRAN algorithm for correcting normal resistivity logs for borehole
diameter and mud resistivity: U.S. Geological Survey Open-File Report 78-669, 12 p.
ELECTRICAL AND ELECTROMAGNETIC SOURCE CODES
The USGS has many programs for reduction of electrical and electromagnetic data collected
using various methods, including Schlumberger, Slingram, magnetotellurics (MT),
audiomagnetotellurics (AMT), very low frequency (VLF), time-domain electromagnetics (TDEM),
and other methods. Data interpretation programs use forward and inverse modeling, digital filtering,
and mathematical transforms. Also see separate listing in Appendix A.
Anderson, W.L., 1971, Application of bicubic spline functions to two-dimensional gridded data:
National Technical Information Service No. PB 203 579.
Anderson, W.L, 1974, Electromagnetic fields about a finite electric wire source: National Technical
Information Service report PB 238-199/4WC, 205 p.
Anderson, W.L, 1975, Improved digital filters for evaluating Fourier and Hankel transform
integrals: U.S. Geological Survey Report USGS GD-75-012 available as National Technical
Information Service report PB-242-800/1WC, 223 p.
Anderson, W.L, 1976a, An optimal method for evaluating a class of convolution integrals with
related kernels: National Technical Information Service report, PB-251-156/6WC, 15 p.
Anderson, W.L, 1976b, Electromagnetic scattering by multiple conductors in the earth due to a
plane wave source: National Technical Information Service report PB-261-183/AS, 75 p.
Anderson, W.L, 1977, Marquardt inversion of vertical magnetic field measurements from a
grounded wire source, National Technical Information Service report, PB-263-924/AS, 76 p.
Anderson, W.L, 1979a, Numerical integration of related Hankel transforms of orders 0 and 1 by
adaptive digital filtering: Geophysics, v. 44, no. 7, p. 1287-1305.
Anderson, W.L, 1979b, Program IMSLPW: Marquardt inversion of plane-wave frequency
soundings: U.S. Geological Survey Open-File Report 79-586, 37 p.
Anderson, W.L, 1979c, Program MARQDCLAG: Marquardt inversion of DC Schlumberger
soundings by lagged-convolution: U.S. Geological Survey Open-File Report 79-1432, 58 p.
Anderson, W.L, 1979d, Program MARQLOOPS: Marquardt inversion of loop-loop frequency
soundings: U.S. Geological Survey Open-File Report 79-240, 75 p.
Anderson, W.L, 1979e, Programs TRANS-HCLOOP and TRANS-HZWIRE: Calculation of
transient horizontal coplanar loop soundings and transient wire-loop soundings: U.S. Geological
Survey Open-File Report 79-590, 46 p.
Anderson, W.L, 1980a, Program IMSLEXY: Marquardt inversion of Ex and Ey frequency
soundings from a grounded wire source: U.S. Geological Survey Open-File Report 80-1073, 87 p.
Anderson, W.L, 1980b, Program MARQHXY: Marquardt inversion of Hx and Hy frequency
soundings from a grounded wire source: U.S. Geological Survey Open-File Report 80-901, 111 p.
Anderson, W.L, 1981, Calculation of transient soundings for a central induction loop system
(Program TCILOOP): U.S. Geological Survey Open-File Report 81-1309, 80 p.
Anderson, W.L, 1982a, Adaptive nonlinear least-squares solution for constrained or unconstrained
minimization problems (Subprogram NLSOL): U.S. Geological Survey Open-File Report 82-68, 65
p.
Anderson, W.L, 1982b, Calculation of transient soundings for a coincident loop system (Program
TCOLOOP): U.S. Geological Survey Open-File Report 82-378, 77 p.
Anderson, W.L, 1982c, Fast evaluation of squared-Hankel transforms of order-1 by linear digital
filtering (Subprogram SQJ1): U.S. Geological Survey Open-File Report 82-224, 13 p.
Anderson, W.L, 1982d, Fast Hankel transforms using related and lagged convolutions: Association
for Computing Machinery Transactions on Mathematical Software, v. 8, no. 4, p. 344-368.
Anderson, W.L, 1982e, Nonlinear least-squares inversion of transient soundings for a central
induction loop system (Program NLSTCI): U.S. Geological Survey Open-File Report 82-1129, 85
p.
Anderson, W.L, 1982f, Nonlinear least-squares inversion of transient soundings for a coincident
loop system (Program NLSTCO): U.S. Geological Survey Open-File Report 82-1064, 81 p.
Anderson, W.L, 1983, Fourier cosine and sine transforms using lagged convolutions in
double-precision (Subprograms DLAGFO/DLAGF1): U.S. Geological Survey Open-File Report
83-320, 38 p.
Anderson, W.L, 1984a, A general interface for producing forward solution programs (Subprogram
FWDSOL): U.S. Geological Survey Open-File Report 84-348, 43 p.
Anderson, W.L, 1984b, Computation of Green's tensor integrals for three-dimensional
electromagnetic problems using fast Hankel transforms: Geophysics, v. 49, no. 10, p. 1754-1759.
Anderson, W.L, 1984c, Fast evaluation of Hr and Hz field soundings near a rectangular loop source
on a layered earth (Program HRZRECT): U.S. Geological Survey Open-File Report 84-257, 80 p.
Anderson, W.L, 1985a, Computation of transient soundings for the time-derivative of Hz near a
rectangular loop source on a layered earth (Program FWDTHZ): U.S. Geological Survey Open-File
Report 85-270, 44 p.
Anderson, W.L, 1985b, Fast evaluation of radial and vertical magnetic fields near a rectangular
loop source on a layered earth: Geophysical Transactions, Eotvos Lorand Geophysical Institute of
Hungary, Budapest, v. 31, no. 4, p. 339-357.
Anderson, W.L, 1987, Nonlinear least-squares inversion of bipole-bipole direct-current data
(Program NLSBPBP): U.S. Geological Survey Open-File Report 87-95, 35 p.
Anderson, W.L, 1989, A hybrid fast Hankel transform algorithm for electromagnetic modeling:
Geophysics, v. 54, no. 2, p. 263-266.
Anderson, W.L, 1989, Nonlinear least-squares inversion of infinite line source data (program
NLSINF): U.S. Geological Survey Open-File Report 89-555, 30 p.
Anderson, W.L, 1992, Inversion of plane-wave electromagnetic data for layered earth models using
a graphical user interface: U.S. Geological Survey Open-File Report 92-518 A-B, 28 p., 1 diskette.
Anderson, W.L, 1992, Interactive inversion of dipole loop-loop electromagnetic data for layered
earth models using numerical integrating and complex image theory: U.S. Geological Survey Open-File Report 92-553 A-B, 42 p., 1 diskette. [available as INVDP on anonymous ftp]
Anderson, W.L, 1993, Interactive inversion of transient electromagnetic data for a central-induction
loop over layered earth models: U.S. Geological Survey Open-File Report 93-234 A-B, 33 p., 1
diskette. [available as INVTCI on anonymous ftp]
Anderson, W.L., and Kauahikaua, J., 1979, Program MARQ-TRANS-HCLOOP: Marquardt
inversion of transient horizontal coplanar loop soundings: U.S. Geological Survey Open-File Report
79-773, 75 p.
Anderson, W.L., and Smith, B.D., 1984, Nonlinear least-squares inversion of transient induced
polarization data (Program NLSTIP): U.S. Geological Survey Open-File Report 84-514, 63 p.
Anderson, W.L., and Smith, B.D., 1986, Nonlinear least-squares inversion of frequency-domain
induced polarization data (Program NLSIP): U.S. Geological Survey Open-File Report 86-280, 33
p.
Bisdorf, R.J., 1980, Hewlett-Packard 9845 computer programs to compute Hankel transforms by
convolution: U.S. Geological Survey Open-File Report 80-806, 26 p.
Bisdorf, R.J., and Zohdy, A.A.R., 1990, IBM-PC programs for the automatic processing and
interpretation of Wenner sounding curves in QuickBASIC 4.0: U.S. Geological Survey Open-File
Report 90-211 A-B, 55 p., 1 diskette.
Bradley, Jerry, and Raab, Paul, 1983, SIROTEM II IEEE 488-1978 interface and controlling
software: U.S. Geological Survey Open-File Report 83-249, 17 p.
Daniels, J.J., 1977, A computer program to calculate the resistivity and induced polarization
response for a three-dimensional body in the presence of buried electrodes: U.S. Geological Survey
Open-File Report 77-153, 74 p.
Fitterman, D.V., 1981, Geomagnetic data utility programs for the HP9640A: U.S. Geological
Survey Open-File Report 81-360, 195 p.
Fitterman, D.V., 1982, Computer program SPDIKE for calculation of self-potential anomalies near
vertical dikes: U.S. Geological Survey Open-File Report 82-470, 45 p.
Fitterman, D.V., and Anderson, W.L., 1987, Effect of transmitter turnoff time on transient
soundings: Geoexploration, v. 24, p. 131-146.
Frischknecht, F.C., Muth, L., Grette, R., Buckley, T., and Kornegay, B., 1983, Geophysical
methods for locating abandoned wells: U.S. Geological Survey Open-File Report 83-702, 211 p.
[program CASING included]
Grantham, D.G., Ellefsen, Karl, and Haeni, F.P., 1987, Forward-modeling computer program for
the inductive electromagnetic ground-conductivity method--EM34.FOR: U.S. Geological Survey
Open-File Report 87-213-A, 43 p.
Grantham, D.G., Haeni, F.P., and Mazzaferro, D.L., 1986, Forward modeling computer program
for the very low frequency, radio-wave, terrian-resistivity electromagnetic method--VLF.BAS: U.S.
Geological Survey Open-File Report 86-407W, 31 p.
Grover, T.P., 1992, Data acquisition system for magnetotellurics: U.S. Geological Survey Open-File Report 92-569, 29 p.
Kauahikaua, J.P., 1980, Program MQLVTHXYZ--computer inversion of three-component, time-domain, magnetic-field sounding data generated using an electric wire source: U.S. Geological
Survey Open-File Report 80-1159, 109 p.
Kauahikaua, J.P., and Anderson, W.L., 1977, Calculation of standard transient and frequency
sounding curves for a horizontal wire source of arbitrary length: National Technical Information
Service report PB-274-119/7WC.
Kauahikaua, J.P., and Anderson, W.L., 1979, Programs EMCUPL and SCHCOPL: Computation of
electromagnetic coupling on a layered halfspace with complex conductivities: U.S. Geological
Survey Open-File Report 79-1430, 91 p.
Kauahikaua, J.P., and Anderson, W.L., 1980, Program MQLVEMCPL--Marquardt inversion of
electromagnetic coupling data for a layered halfspace model with complex conductivities: U.S.
Geological Survey Open-File Report 80-1158, 86 p.
Long, C.L., and Pierce, H.A., 1986, BASIC program to reduce audio- magnetotelluric data and
calculate apparent resistivity: U.S. Geological Survey Open-File Report 86-200, 17 p.
Murakami, Yutaka, Zerilli, Andrea, and Bisdorf, R.J., 1984, Improved digital filters for the
calculation of Schlumberger sounding curves by convolution: U.S. Geological Survey Open-File
Report 84-280, 18 p.
Murakami, Yutaka, Zerilli, Andrea, and Bisdorf, R.J., 1986, A computer program for the automatic
inversion of Schlumberger soundings using multi-layer interpretation followed by Dar Zarrouk
reduction: U.S. Geological Survey Open-File Report 86-288, 45 p.
Olhoeft, G.R., 1978, Algorithm and BASIC program for ordinary least squares regression in two
and three dimensions: U.S. Geological Survey Open-File Report 78-876, 8 p.
Olhoeft, G.R., 1992, Geophysics advisor expert system, version 2.0: U.S. Geological Survey
Open-File Report 92-526 A-B, 21 p., 1 diskette.
Powers, M.H., Duke, S.K., Huffman, A.C., III, and Olhoeft, G.R., 1992, GPRMODEL - One-dimensional full waveform forward modelling of ground penetrating radar data: U.S. Geological
Survey Open-File Report 92-532 A-B, 22 p., 1 diskette.
Raab, P.V., 1983, Slingram data processing and profiling programs for the HP-85 desktop
computer: U.S. Geological Survey Open-File Report 83-461, 55 p.
Raab, P.V., and Frischknecht, Frank, 1983, Desktop computer processing of coincident and central
loop time-domain electromagnetic data: U.S. Geological Survey Open-File Report 83-240, 42 p.
Sadek, H.S., 1983, BASIC program IPFLTR for induced polarization data reduction and filtering:
U.S. Geological Survey Open-File Report 83-485, 33 p.
Watts, R.D., 1975, A Fortran IV program for analytic continuation of VLF electromagnetic data:
U.S. Geological Survey Open-File Report 75-159, 28 p.
Zohdy, A.A.R., 1978, Field procedures and data reduction methods (with HP-97- 67 programs) for
total field resistivity surveys: U.S. Geological Survey Open-File Report 78-424, 35 p.
Zohdy, A.A.R., 1980, HP-9845 program for computing and plotting full Schlumberger sounding
curves and master sets over three vertical layers: U.S. Geological Survey Open-File Report 80-248,
29 p.
Zohdy, A.A.R., 1993, Program Kolor-Map & Section, Amiga version 2.0: U.S. Geological Survey
Open-File Report 93-585, 113 p., 1 diskette.
Zohdy, A.A.R., and Bisdorf, R.J., 1989, Programs for the automatic processing and interpretation of
Schlumberger sounding curves in QuickBASIC 4.0: U.S. Geological Survey Open-File Report
89-137-A-B, 64 p., 1 diskette.
SPECTROSCOPY SOURCE CODES AND DIGITAL LIBRARIES
The USGS maintains a spectroscopy laboratory under the direction of Roger Clark. His array
processing software (Clark, 1980) is geared toward processing large amounts of spectrophotometric
astronomical data, but it can also be used for general one-dimensional array processing. An on-line
spectral library is now available.
Clark, R.N., 1980, A large-scale interactive one-dimensional array processing system: Astronomical
Society of the Pacific Publications, v. 92, p. 221-224.
Clark, R.N., 1993, SPECtrum Processing Routines User's Manual Version 3 (program SPECPR) :
U.S. Geological Survey Open-File Report 93-595, 210 p.
Clark, R.N., Swayze, G.A., King, T.V.V., Gallagher, Andrea, and Calvin, W.M., 1993, The U.S.
Geological Survey Spectral Library--Version 1: 0.2 and 3.0 m: U.S. Geological Survey Open-File
Report 93-592, 1,237 p.
Livo, K.E., Clark, R.N., and Knepper, D.H., Jr., 1993, SPVIEW - spectral plot program for
accessing the USGS digital library database with MS-DOS personal computers--version 1.00: U.S.
Geological Survey Open-File Report 93-593 A-B, 29 p., 3 diskettes.
Theisen, A.F., 1985, Computer graphics--Mini-computer results from a micro: U.S. Geological
Survey Open-File Report 85-675, 9 p.
Theisen, A.F., 1989, Porting the excitation-emission-matrix 3-D plotting program from Applesoft
BASIC to IBM-compatable GW-BASIC: U.S. Geological Survey Open-File Report 89-312, 23 p.
Theisen, A.F., and Hemphill, W.R., 1985, Microcomputers in the luminescence laboratory--A
technique for automating spectrometers: American Laboratory, v. 17, no. 9, p. 166-171.
ADDRESSES FOR AGENCIES MENTIONED IN REPORT
USGS phone/email listings for current employees
Links to many geophysical organizations
New Publications of U.S. Geological Survey
582 National Center
Reston, VA 22092
U.S. Geological Survey
Open-File Services Section MS 902
Box 25425, Federal Center
Denver, CO 80225 (303) 236-7476
FAX: (303) 236-1972
Data Services Officer
Sioux Falls, SD 57198
Gravity and magnetic data: (605) 594-6507
Remote sensing data: (605) 594-6151
Earth Science Information Center
U. S. Geological Survey
507 National Center
Reston, VA 22092 (703) 860-6045
National Climatic Data Center
Satellite Data Services Division
Princeton Executive Square, Room 100
Washington, DC 20233 (301-763-8400)
National Geophysical Data Center
NOAA, Code E/GC4325 Broadway
Boulder, CO 80303
magnetic or gravity data:
Ronald Buhmann (303)-497-6128
National Technical Information Service
U.S. Department of Commerce
5285 Port Royal Rd.
Springfield, VA 22161 (703) 487-4650
EOSAT (Earth Observation Satellite Company)
4300 Forbes Boulevard
Lanham, MD 20706 1-800-344-9933
1897 Preston White Drive
Reston, VA 22091-4326 (703) 620-2200
U.S. Geological Survey Central Region Geophysics Information
Box 25046, MS 964, Federal Center
Denver, CO 80225 (303) 236-1212
USGS Center for Environmental Geochemistry and Geophysics (CEGG)
Box 25046, MS 973, Denver Federal Center
Denver, CO 80225
Cathy Ager, Information Officer, 303-236-3301
APPENDIX A : EM Program List of Walter L. Anderson
The enclosed list contains electromagnetic (EM) source codes currently available from the U.S.
Geological Survey. To obtain the Fortran source code of any program(s) listed, selected files may
be read over "internet" using anonymous ftp. (Previously, a DEC VAX/VMS generated magnetic
tape could be used, but this option is no longer available.)
These programs were mostly developed and tested on a VAX/VMS computer system (but note 3,
below). Any updates to the codes since formal publication will be included in the files and noted in
the form of "VAX Help Notes", if it applies to a requested VAX program. VAX Help Notes are
short summaries of new parameter definitions and/or changes to the original published program.
Corresponding USGS or NTIS program documentation reports may be obtained at nominal page
charges by contacting the appropriate organization.
NOTATIONS & OTHER INFORMATION
1. All program reference numbers ending in "v" (e.g., 004v) are later VAX-versions of the
corresponding REF numbers without a suffix. The VAX-version program NAME may or may not
differ from the original published program; also, the VAX-version may contain updates not included
in the published non-VAX versions. All updates will be noted in a "VAX Help Note" when
appropriate.
2. A forward (FWD) program series is easily obtained by interfacing any NLS-inversion program
with subprogram FWDSOL (see REF 028). Thus, a stand-alone FWD-program will contain the
same updates as in the current NLS-inversion program; the original non-FWD forward programs
will not necessarily contain the latest updates as in the corresponding NLS-inversion program. See
REF 028 for more information on creating FWD-programs from NLS-programs (or conversely);
also, see REF 018 on the general adaptive nonlinear least-squares subprogram NLSOL2 used in all
NLS-programs.
NOTE: Most of the original non-FWD forward programs are now considered obsolete, but are still
available if requested. Whenever any NLS-inversion program is requested, the corresponding
FWD-program will also be included; hence, FWD-programs are not specified in the EM Program
List along with the corresponding NLS-inversion program.
3. One HP/UNIX version program is included (REF 35). Three IBM/DOS-compatible PC
programs are listed in REFs 036, 037, and 038. The DOS programs require the RPlot (TM)
Scientific Graphics package, available from RSoft Inc., phone (914) 734-2665 or FAX (914) 736-9823.
Listings below follow this pattern:
REF NO. PROGRAM NAME
TITLE/PURPOSE/SCOPE, NUMERICAL METHODS
DOCUMENTATION AVAILABLE
SOURCE-CODE:MACHINE (OPERATING SYSTEM)
PROGRAM CLASSIFICATION
====================================================================
001 EMFIN4
EM fields about a finite electric wire source. Computes all E,H fields for layered models in freq. or
time domains. Numerical integration by convolution or Gaussian quadrature.
NTIS Report PB-238-199 1974 Rev. 1977
Fortran-IV:HONEYWELL- 68/80 (Multics)
Forward modeling
.============+===============+======================+==============+
001v EMFIN4
EM fields about a finite electric wire source. Computes all E,H fields for layered models in freq. or
time domains. Numerical integration by convolution or Gaussian
Fortran-77:VAX-11/780
Forward modeling
=============+===============+======================+==============+
002v HANKEL/FOURIER PACKAGE
Improved digital filters for evaluating Hankel and Fourier transforms. Numerical integration by
convolution and lagged convolution.
NTIS Report PB-242-800 (1975)
Fortran-77:VAX-11/780 (VMS)
Subroutine package
=============+===============+======================+==============+
003 EMLOOPS
EM fields for loop-loop freq. forward solutions for layered models. Numerical integration by
related convolution.
VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Forward modeling
=============+===============+======================+==============+
004 MARQHZP
Inversion of Hz-freq. soundings from a finite wire source (or electric dipole). Non-linear
least-squares using convolution (or Gaussian quadrature).
NTIS Report PB-263-924 (1977) Rev. 1979
Fortran-IV:HONEYWELL 68/80 (Multics)
Inverse modeling
=============+===============+======================+==============+
004v NLSHZ
Inversion of Hz-freq. soundings from a finite wire source (or electric dipole). Non-linear
least-squares using convolution (or Gaussian quadrature).
VAX Help Notes
Fortran-77:VAX-11/780
Inverse modeling
============+===============+======================+==============+
005 SCATPW2
EM scattering by multiple conductors in a halfspace for plane wave source and 2D bodies. Integral
equation approx. and numerical integration by convolution.
NTIS Report PB-261-183 (1976)
Fortran-IV:HONEYWELL- 68/80 (Multics)
Forward modeling
=============+===============+======================+==============+
006 SCATLN2
EM scattering by multiple conductors in a halfspace for a line source and 2D bodies. Integral equa
tion approx. and numerical integration by convolution.
GEOPHYSICS, v.36,no.1, p.101-131 (Feb 1971)
Fortran-IV:HONEYWELL- 68/80 (Multics)
Forward modeling
=============+===============+======================+==============+
007 MARQLOOPS
Inversion of loop-loop frequency soundings for 5 loop types and/or Schlumberger soundings
Nonlinear least-squares using numerical integration by related convolution.
USGS Open-File Report 79-240 (1979)
Fortran-IV:HONEYWELL- 68/80 (Multics)
Inverse modeling
=============================+======================+==============+
007v NLS-LOOP3
Inversion of loop-loop frequency soundings for 5 loop types and/or Schlumberger soundings
Nonlinear least-squares using numerical integration by related convolution.
VAX Help Notes
Fortran-77:VAX-11/780
Inverse modeling
=============+===============+======================+==============+
008 TRANS-HCLOOP/ HZWIRE
Transient horiz. coplanar loop-loop / wire-loop forward solutions for layered models. Numerical
integration by lagged convolution and cubic splines.
USGS Open-File Report 79-590 (1979)
Fortran-IV:HONEYWELL- 68/80 (Multics)
Forward modeling
=============+===============+======================+==============+
008v THCLOOP/ THZWIRE
Transient horiz. coplanar loop-loop / wire-loop forward solutions for layered models. Numerical
integration by lagged convolution and cubic splines.
VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Forward modeling
=============+===============+======================+==============+
009 IMSLPW
Inversion of MT/AMT plane wave frequency soundings (1D layered models). Nonlinear least-squares.
USGS Open-File Report 79-586 (1979)
Fortran-IV:HONEYWELL- 68/80 (Multics)
Inverse modeling
=============+===============+======================+==============+
009v NLSPW
Inversion of MT/AMT plane wave frequency soundings (1D layered models). Nonlinear least-squares.
VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
010 TRANS-PACKAGE
Computes transient soundings for horizontal finite wire source for all E,H fields over layered
models. Numerical integration by lagged convolution and cubic splines.
NTIS Report PB-274-119 (1977) Rev. 1979
Fortran-IV:HONEYWELL- 68/80 (Multics)
Forward modeling
=============================+======================+==============+
011 MARQ- TRANS-HCLOOP
Inversion of transient horiz. coplanar loop- loop soundings. Nonlinear least-squares using lagged
convolution and cubic splines.
USGS Open-File Report 79-773 (1979)
Fortran-IV:HONEYWELL-68/80 (Multics)
Inverse modeling
=============+===============+======================+==============+
011v NLSTHC
Inversion of transient horiz. coplanar loop- loop soundings. Nonlinear least-squares using lagged
convolution and cubic splines.
VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
012 ZHANKS
Numerical integration of related Hankel transforms of orders 0 and 1 by adaptive digital filtering.
Numerical integration by convolution for related transforms.
GEOPHYSICS, v.44,no.7, p.1287-1305 (July 1979)
Fortran-IV:HONEYWELL-68/80 (Multics)
Subroutine package
=============+===============+======================+==============+
012v ZHANKS
Numerical integration of related Hankel transforms of orders 0 and 1 by adaptive digital filtering.
Numerical integration by convolution for related transforms.
GEOPHYSICS, v.44,no.7, p.1287-1305 (July 1979)
Fortran-77:VAX-11/780 (VMS)
Subroutine package
=============+===============+======================+==============+
013 MARQ-DCLAG
Inversion of DC Schlumberger soundings by lagged convolution. Nonlinear least- squares using
lagged convolution and cubic splines.
USGS Open-File Report 79-1432 (1979)
Fortran-IV:HONEYWELL-68/80 (Multics)
Inverse modeling
=============+===============+======================+==============+
013v NLSDCLAG
Inversion of DC Schlumberger soundings by lagged convolution. Nonlinear least-squares using
lagged convolution and cubic splines.
VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
014 EMCUPL/ SCHCOPL
EM coupling on a layered halfspace with complex conductivities (general arrays and
Schlumberger). Numerical integration by lagged convolution, adaptive quadrature, and splines.
USGS Open-File Report 79-1430 - (1979) Rev. 1984 VAX Help
Fortran-77:VAX-11/780 (VMS)
Forward modeling
=============+===============+======================+==============+
015 MARQHXY
Inversion of Hx and Hy frequency soundings from a finite wire source. Nonlinear least-squares
using related convolution.
USGS Open-File Report 80-901 (1980)
Fortran-IV:HONEYWELL-68/80 (Multics)
Inverse modeling
=============+===============+======================+==============+
015v NLSHXY
Inversion of Hx and Hy frequency soundings from a finite wire source. Nonlinear least-squares
using related convolution.
VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
016 IMSLEXY
Inversion of Ex and Ey frequency soundings from a finite wire source. Nonlinear least-squares
using related convolution.
USGS Open-File Report 80-1073 (1980)
Fortran-IV:HONEYWELL- 68/80 (Multics)
Inverse modeling
=============+===============+======================+==============+
016v NLSEXY
Inversion of Ex and Ey frequency soundings from a finite wire source. Nonlinear least-squares
using related convolution.
VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
017 TCILOOP
Transient soundings for central-induction loop; forward solutions for layered models. Numerical
integration by lagged convolution and cubic splines.
USGS Open-File Report 81-1309 (1981)
Fortran-77:VAX-11/780 (VMS)
Forward modeling
=============+===============+======================+==============+
017d DTCILOOP
Transient soundings for central-induction loop; forward solutions for layered models. Numerical
integration by lagged convolution and cubic splines (in double-precision).
VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Forward modeling
=============+===============+======================+==============+
018 NLSOL2
Adaptive nonlinear least-squares for constrained, unconstrained minimization problems.
Adaptive Hessian approximation for general nonlinear least-squares.
USGS Open-File Report 82-68 (1982)
Fortran-77:VAX-11/780 (VMS)
Subroutine Package
=============+===============+======================+==============+
019 SQJ1
Fast evaluation of squared-Hankel transforms of order-1. Numerical integration by convolution.
USGS Open-File Report 82-224 (1982)
Fortran-77:VAX-11/780 (VMS)
Subroutine
=============+===============+======================+==============+
020 TCOLOOP
Transient soundings for coincident loop system; forward solutions for layered models Numerical
integration by lagged convolution and cubic splines.
USGS Open-File Report 82-378 (1982)
Fortran-77:VAX-11/780 (VMS)
Forward modeling
=============+===============+======================+==============+
021 NLSTCO
Inversion of transient soundings using a coincident loop system for layered models. Nonlinear least-
squares using lagged convolution and cubic splines.
USGS Open-File Report 82-1064 (1982)
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
022 NLSTCI
Inversion of transient soundings using a central induction loop system for layered models.
Nonlinear least-squares using lagged convolution and cubic splines.
USGS Open-File Report 82-1129 (1982)
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
023 FINEGRID
2D-bicubic spline fine-grid interpolation prior to smooth contouring (with subgrid options).
Bicubic splines over rectangular data grids.
NTIS Report PB-203-579 (1971). Also VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Utility Package
=============+===============+======================+==============+
024 SECDER
2nd-vertical derivative grid using FINEGRID's bicubic spline output (also gradient grid). Bicubic
splines over rectangular data grids and Laplace's eq.
NTIS Report PB-203-579 (1971). Also VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Utility Package
=============+===============+======================+==============+
025 HANKEL/DHANKL
Fast Hankel transforms using related & lagged convolutions (single/double precision). Numerical
integration by related & lagged convolution methods.
ACM Trans.Math. Software, v.8, no.4, p.344-368 (Dec 1982)
Fortran-77:VAX-11/780 (VMS)
Subroutine package
=============+===============+======================+==============+
026 DLAGF0/ DLAGF1
Fourier cosine/sine transforms (in double-precision). Numerical integration by lagged convolution.
USGS Open-File Report 83-320 (1983)
Fortran-77:VAX-11/780 (VMS)
Subroutine Package
=============+===============+======================+==============+
027 DTHCLOOP
Transient horizontal coplanar loop-loop forward models (double-precision THCLOOP
in REF 008v). Numerical integration by lagged convolution.
VAX Help Notes
Fortran-77:VAX-11/780 (VMS)
Forward modeling
=============+===============+======================+==============+
028 FWDSOL
General interface for producing forward solution programs. Uses NLSOL2 (REF 018) subprogram
requirements.
USGS Open-File Report 84-348 (1984)
Fortran-77:VAX-11/780 (VMS)
Subroutine Package
=============+===============+======================+==============+
029 HRZRECT
Freq. Hr, Hz soundings near a rectangular loop on a layered earth. Numerical integration by lagged
convolution and cubic splines.
USGS Open-File Report 84-257 (1984)
Fortran-77:VAX-11/780 (VMS)
Forward modeling
=============+===============+======================+==============+
030 NLSTIP
Inversion of transient induced polarization data. Nonlinear least-squares using
convolution and/or numerical integration.
USGS Open-File Report 84-514 (1984)
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
031 FWDTHZ
Transient Hz soundings near a rectangular loop on a layered earth. Numerical integration by lagged
convolution and cubic splines.
USGS Open-File Report 85-270 (1985)
Fortran-77:VAX-11/780 (VMS)
Forward modeling
=============+===============+======================+==============+
032 NLSIP
Inversion of frequency induced polarization data. Nonlinear least-squares.
USGS Open-File Report 86-280 (1986)
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
033 NLSBPBP
Inversion of bipole-bipole direct-current data. Nonlinear least-squares using lagged convolution.
USGS Open-File Report 87-95 (1987)
Fortran-77:VAX-11/780 (VMS)
Inverse modeling
=============+===============+======================+==============+
034 HYBFHT/ HY2FHT (+DOC file)
Hybrid fast Hankel transform by filtering and quadrature (single/ double precision). Numerical
integration by related & lagged convolution and quadrature methods
GEOPHYSICS v.54, no.2 p.263-266 (Feb 1989)
Fortran-77:VAX-11/780 (VMS)
Subroutine package
=============+===============+======================+==============+
035 NLSINF/ FWDINF
Inversion of infinite line source data /or forward soundings for infinite line source. Numerical
integration by lagged convolution.
USGS Open-file Report 89-555 (1989)
Fortran-77:HP-9000 (Unix)
Inverse/Forward modeling
=============+===============+======================+==============+
036 INVPW
Inversion of plane-wave EM data for 1-D models using a graphical user interface (Version 1.0)
Nonlinear least-squares.
USGS Open-file Report 92-518-A Disk: 92-518-B (1992)
Fortran-77:386 PC (MS-DOS)
Inverse and Forward modeling
=============+===============+======================+==============+
037 INVDP
Interactive inversion of dipole loop-loop EM data for 1-D models (Version 1.0). Nonlinear least-
squares using numerical integration and complex image theory.
USGS Open-file Report 92-553-A Disks: 92-553-B
Fortran-77:386 PC (MS-DOS)
Inverse and Forward modeling
=============+===============+======================+==============+
038 INVTCI
Interactive inversion of transient central-induction loop EM data for 1-D models (Ver 1.0).
Nonlinear least-squares using lagged convolution and cubic splines.
USGS Open-file Report 93-234-A Disk: 93-234-B (1993)
Fortran-77:386 PC (MS-DOS)
Inverse and Forward modeling
=============+===============+======================+==============+
APPENDIX B: HAND-HELD CALCULATOR PROGRAMS BY D.L. CAMPBELL
Campbell, D.L., Ballantyne, E.J., Jr., Mentemeier, S., and Wiggins, R., eds., 1981, Society of
Exploration Geophysicists manual of geophysical hand-calculator programs; Hewlett Packard
Volume: Society of Exploration Geophysicists, Tulsa, Oklahoma.
This publication contains the following programs:
Campbell, D.L., 1981, Horizontal loop electromagnetic topographic correction: program EM 1, 7 p.
Campbell, D.L., 1981, MT inversion (Bostick's algorithm): program EM 8, 8 p.
Campbell, D.L., 1981, Bouguer reduction--regional: a portion of a package entitled GRAV 1, 6 p.
Campbell, D.L., 1981, Gravity--2-D anomaly: program GRAV 5, 5 p.
Campbell, D.L., 1981, Gravity terrain correction: program GRAV 8, 5 p.
Campbell, D.L., 1981, Susceptibility-percent magnetite: program MAG 1, 4 p.
Campbell, D.L., 1981, Magnetic profiles over dikes: program MAG 4, 7 p.
Campbell, D.L., 1981, Magnetics: 2-D anomaly: program MAG 7, 5 p.
Campbell, D.L., 1981, Digital convolution: program MISC 3, 4 p.
Campbell, D.L., 1981, Gamma-ray spectrometer data reduction: program RAD 1, 4 p.
Campbell, D.L., 1981, <4 dipping seismic refractors: interpretation, and <4 dipping seismic
refractors--design: two programs included as program package SEIS 13 C, 15 p.
Campbell, D.L., and Findhammer, T.L.R., 1981, Geometric factors for resistivity surveys: program
RIP 1, 9 p.
Zohdy, A.A.R., and Campbell, D.L., 1981, Theoretical Wenner and Schlumberger vertical electrical
soundings: program RIP 4, 8 p.
Ballantyne, E.J., Jr., Campbell, D.L., Mentemeier, S., and Wiggins, R., eds., 1981, Society of
Exploration Geophysicists manual of geophysical hand-calculator programs; Texas Instruments
Volume: Society of Exploration Geophysicists, Tulsa, Oklahoma.
This publication contains the following programs:
Campbell, D.L., 1981, MT planewave--horizontal layers: program EM 7, 6 p.
Campbell, D.L., 1981, Bouguer reduction--regional: program GRAV 1, 9 p.
Campbell, D.L., 1981, Gravity terrain correction: program GRAV 8, 6 p.
Campbell, D.L., and Haines, D.N., 1981, Magnetic profiles over dikes: program MAG 4, 10 p.
Campbell, D.L., and Haines, D.N., 1981, Magnetics: 2-D anomaly: program MAG 7, 12 p.
Haines, D.N., and Campbell, D.L., 1981, Gravity: 2-D anomaly: program 5B, 9 p.
Haines, D.N., and Campbell, D.L., 1981, Theoretical Wenner and Schlumberger vertical electric
soundings: program RIP 5, 15 p.
GRAVITY, MAGNETIC, AND RADIOMETRIC DATA COMPILATIONS AND MAPS
Go to Central Region Mineral Resources Program
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