Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Stephen L. Eittreim
Originator: Roberto J. Anima
Originator: Andrew J. Stevenson
Originator: Florence L. Wong
Publication_Date: 20000915
Title:
Polygon coverage MBGEOLSE for Seafloor rocks and sediments of
the continental shelf from Monterey Bay to Point Sur, California
Edition: Version 1, September 15, 2000
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: USGS Miscellaneous Field Studies Map
Issue_Identification: MF-2345
Publication_Information:
Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey
Online_Linkage:
Description:
Abstract:
This data set, MBGEOLSE, consists of polygons of seafloor
geologic units and line traces of the San Gregorio Fault
interpreted from acoustic imagery data collected by the
USGS and cooperators on the continental shelf from 1995 to
1998. MBGEOLSE is the data layer of the print map USGS
MF-2345, which also includes a shaded relief base layer. The
pertinent USGS/CMG field activity IDs
(http://walrus.wr.usgs.gov/infobank) are
> P-1-95-MB
> P-2-95-MB
> M-1-95-MB
> J-2-95-MB
> J-6-95-MB
> M-2-95-MB
> M-1-96-MB
> J-6-96-MB
> J-7-96-MB
> J-1-97-MB
> J-3-97-MB
> M-4-97-MB
> J-3-98-MB
> M-1-98-MB
> A-4-98-MB
Purpose:
These data are intended for science researchers, students, policy
makers, and the general public.
Supplemental_Information:
Information for the pertinent USGS/CMG field activities are online at
Related USGS work in the Monterey Bay National Marine
Sanctuary are online at
.
Although this Federal Geographic Data
Committee-compliant metadata file is intended to
document the data set in nonproprietary form, as
well as in ARC/INFO format, this metadata file may
include some ARC/INFO-specific terminology.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20000901
Currentness_Reference: Ground Condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.38432
East_Bounding_Coordinate: -121.79294309
North_Bounding_Coordinate: 37.11288919
South_Bounding_Coordinate: 36.22982869
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Coastal Geology
Theme_Keyword: Marine Geology
Theme_Keyword: sidescan sonar
Theme_Keyword: seafloor petrology
Theme_Keyword: seafloor sediment
Theme_Keyword: acoustic imagery
Theme_Keyword: Santa Cruz Mudstone
Theme_Keyword: Purisima Formation
Theme_Keyword: Aromas Sand
Theme_Keyword: Rocks of Sur platform
Theme_Keyword: Vaqueros Formation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Northern California
Place_Keyword: San Gregorio Fault
Place_Keyword: CA
Place_Keyword: North Pacific Ocean
Place_Keyword: Northern Pacific Ocean
Place_Keyword: USA
Access_Constraints:
Physical source materials are under controlled, on-site access.
If available, access to physical samples is described
in the "WR CMG Sample Distribution Policy" at
.
Use_Constraints:
Please recognize the U.S. Geological Survey (USGS) as the source of
this information.
Although these data have been used by the U.S. Geological Survey,
U.S. Department of the Interior, no warranty expressed or implied
is made by the U.S. Geological Survey as to the accuracy of the
data.
The act of distribution shall not constitute any such warranty, and
no responsibility is assumed by the U.S. Geological Survey in the
use of this data, software, or related materials.
This information is not intended for navigational purposes.
Any use of trade, firm, or product names is for descriptive
purposes only and does not imply endorsement by the
U.S. Government.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
United States Geological Survey (USGS),
Coastal and Marine Geology (CMG)
Contact_Person: Florence L. Wong
Contact_Position: Geologist, GIS Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA
Contact_Voice_Telephone: (650) 329-5327
Contact_Facsimile_Telephone: (650) 329-5190
Contact_Electronic_Mail_Address: fwong@usgs.gov
Data_Set_Credit:
Bathymetric data from National Oceanic and Atmospheric
Administration (NOAA) / National Ocean Service (NOS)
multibeam swath soundings for depths greater than 100 m and
from the NOS Hydrographic Data Base (NOAA, 1998) for
shallower depths were gridded at 2-second intervals with
GMT's (Wessel and Smith, 1998) surface algorithm and
smoothed with Arcinfo (ESRI, 1998) filter methods. Contour
lines were generated from the resulting 50-m grid. The grid
of bathymetric data was merged with USGS 30-m DEMs to
calculate the shaded relief image, which has a 2X vertical
exaggeration.
NOAA, 1998, NOS Hydrographic Survey Data, US Coastal
Waters: Boulder, CO, World Data Center for Marine Geology &
Geophysics, Data Announcement 98-MGG-03, CD-ROM Set,
Version 4.0
.
Wessel, P., and Smith, W. H. F., 1998, New, improved
version of Generic Mapping Tools released: EOS Transactions
of the American Geophysical Union, v. 79 (47), p. 579
.
Native_Data_Set_Environment: SunOS, 5.7, sun4u UNIX ARC/INFO version 8.0.2
Browse_Graphic:
Browse_Graphic_File_Name: http://geopubs.wr.usgs.gov/open-file/of01-
179/images/geombgeolse.gif
Browse_Graphic_File_Description: location map of eqreloc
Browse_Graphic_File_Type: GIF
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Identified as best available version.
Logical_Consistency_Report:
Polygon and chain-node topology present. Every polygon has
a label and all polygons are closed. Every line has a
label.
Completeness_Report:
Regional data coverage is limited by location of the survey
lines. On the northern shelf from the sheltered area around
Santa Cruz northwest to Point Ano Nuevo, the innermost survey
lines were run into water depths as shallow as 5 meters.
However in most other areas, shallowest lines were at about
the 10 meter isobath, leaving a significant data gap to the
shoreline. Interior gaps in the interpreted coverage are due
to missing sidescan data, whether from non-overlapping
tracklines, instrument failure, or corrupted data files.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The side-scan sonar mosaics on the shelf north of Monterey
Canyon have a pixel resolution of 0.4 m for the inner shelf
and 0.8 m for the outer shelf. Although this pixel
resolution allows us to resolve relatively small features
on the seafloor, the accuracy of pixel location is
considerably poorer than this due to inaccuracies in
navigating the fish towed behind the ship for the northern
surveys. The southern-shelf data, which were collected with
hull-mounted systems, were processed at pixel resolutions
of 2.5 m for backscatter and 5 m for bathymetry. The
estimated navigational accuracy in pixel location is 50 m
for the northern shelf data and 10 m for the southern shelf
data. See Eittreim and others (in press) for a fuller
discussion of the navigational accuracy and acoustic
systems.
Interpretation was done at the scale of 2.4 m per pixel. At
an image resolution of 72 dpi, common to most video
screens, this represents a scale of 1:6,800.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
United States Geological Survey (USGS),
Coastal and Marine Geology (CMG),
Florence L. Wong
Publication_Date: 20000915
Title:
Polygon coverage MBGEOLSE for Seafloor rocks and sediments of
the continental shelf from Monterey Bay to Point Sur, California
Edition: Version 1.0, September 15, 2000
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: USGS Miscellaneous Field Studies
Issue_Identification: USGS MF-2345
Publication_Information:
Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey
Online_Linkage:
Type_of_Source_Media:
Sidescan sonar images with pixel resolutions
ranging from 0.4 to 2.5 meters
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20000201
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: none
Source_Contribution: bottom types interpreted in Adobe Photoshop
Process_Step:
Process_Description:
FLW = Florence L. Wong; SLE = Stephen L. Eittreim
SLE interpreted units of sonar block 1 over sidescan image in Adobe
Photoshop as a TIFF image. FLW converted Adobe Photoshop TIFF to
polygon coverage blk1p.
Process_Date: 19980130
Process_Step:
Process_Description:
SLE interpreted units of sonar block 2 over sidescan image in Adobe
Photoshop as a TIFF image. FLW converted Adobe Photoshop TIFF to
polygon coverage blk2p.
Process_Date: 19980209
Process_Step:
Process_Description:
SLE re-interpreted units of sonar blocks 1 and 2 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverages blk1p and blk2p.
Process_Date: 19980211
Process_Step:
Process_Description:
SLE interpreted units of sonar block 3 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverage blk3p; combined blocks 1, 2, 3 as scshelf.
Process_Date: 19980227
Process_Step:
Process_Description:
SLE interpreted units of sonar block 4 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverage blk4p and joined to scshelf.
Process_Date: 19980311
Process_Step:
Process_Description:
SLE interpreted units of sonar blocks off Seaside over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverage montp.
Process_Date: 19980325
Process_Step:
Process_Description:
SLE interpreted units of sonar blocks 1 and 5 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverage blk15p.
Process_Date: 19980701
Process_Step:
Process_Description:
SLE interpreted units of sonar blocks 2 and 6 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverage blk26gp.
Process_Date: 19980716
Process_Step:
Process_Description:
SLE interpreted units of sonar blocks 7 and 8 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverage and merged with scshelf as blk3478p.
Process_Date: 19980723
Process_Step:
Process_Description:
SLE revised units of sonar blocks 1 and 5 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverage blk15p.
Process_Date: 19980820
Process_Step:
Process_Description:
SLE interpreted units of sonar blocks 10 and 11 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverage blk1011gp
Process_Date: 19980826
Process_Step:
Process_Description:
SLE interpreted units of sonar block 9 and gap between blocks
3 and 7 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverages blk9gp and blk37gapp; combined blk15gp and
blk9gp as blk159p.
Process_Date: 19980910
Process_Step:
Process_Description:
SLE interpreted units of sonar block 15 over sidescan image
in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to
polygon coverage blk15ip.
Process_Date: 19981214
Process_Step:
Process_Description:
SLE interpreted units of sonar blocks 12, 13, and surshelf
over sidescan backscatter and shaded relief images
in Adobe Photoshop. Wilson Lee (WL) converted Adobe Photoshop TIFF to
polygon coverages and combined all polygon blocks into
coverage ALLBLK.
Process_Date: 19990305
Process_Step:
Process_Description:
FLW exported interim version named MBGEOLSE to Norman Maher,
Gary Greene, MBARI
Process_Date: 19990423
Process_Step:
Process_Description: WL made further revisions as ALLBLKFINAL
Process_Date: 19990716
Process_Step:
Process_Description: WL made further revisions as MB_POLY
Process_Date: 20000111
Process_Step:
Process_Description:
FLW made further revisions as MBGEOLSE; submitted to
peer review.
Process_Date: 20000111
Process_Step:
Process_Description: FLW made further revisions per reviews.
Process_Date: 2000822
Process_Step:
Process_Description:
First draft of metadata created by Florence Wong using
FGDCMETA.AML ver. 1.33 07/15/99 on ARC/INFO data
set /we/florence/mont.eitt2/dirsonar/mbgeolse
Process_Date:
20000830
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count:
2126
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 10
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -123
Latitude_of_Projection_Origin: 0.0
False_Easting: 0.000
False_Northing: -500000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 3.224549805355
Ordinate_Resolution: 3.224549805355
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio:
294.98
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
>>MBGEOLSE.PAT: polygon attribute table
>COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
> 1 AREA 8 18 F 5
> 9 PERIMETER 8 18 F 5
> 17 MBGEOLSE# 4 5 B -
> 21 MBGEOLSE-ID 4 5 B -
> 25 GRID-CODE 4 8 B -
> 29 TAG 2 4 B -
>
>AREA, PERIMETER: of polygons in square meters, meters, respectively
>MBGEOLSE#: unique internal control number
>MBGEOLSE-ID: user-assigned sequence number
>GRID-CODE: value keyed to lookup table MBGEOLSE.PLUT below
>TAG: flag to label polygon during plotting
>
>>MBGEOLSE.AAT: arc attribute table
>COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
> 1 FNODE# 4 5 B -
> 5 TNODE# 4 5 B -
> 9 LPOLY# 4 5 B -
> 13 RPOLY# 4 5 B -
> 17 LENGTH 8 18 F 5
> 25 MBGEOLSE# 4 5 B -
> 29 MBGEOLSE-ID 4 5 B -
> 33 LTYPE 15 15 C -
>
>FNODE#, TNODE# starting, ending node of arc, respectively
>LPOLY#, RPOLY# polygon to left, right, respectively, of arc
>LENGTH length of arc in meters
>MBGEOLSE#: unique internal control number
>MBGEOLSE-ID: user-assigned sequence number
>LTYPE: line type: contact, scratch, fault
>
>>MBGEOLSE.PLUT: polygon symbol lookup table
>COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
> 1 GRID-CODE 4 8 B -
> 5 DESCRIPTION 35 25 C -
> 40 AGE 26 26 C -
> 66 PTYPE 5 5 C -
> ** REDEFINED ITEMS **
> 66 LABEL 5 5 C -
>
>Record GRID-CODE DESCRIPTION AGE
PTYPE
> 1 -9 nodata
> 2 1 Monterey Formation Miocene
Tm
> 3 2 mud and fine sand Quaternary
Qmud
> 4 3 coarse sands Quaternary
Qsd
> 5 4 granitic rock Late Cretaceous
Kgr
> 6 5 pipeline
> 7 8 relict gravels and sands Quaternary
Qgv
> 8 9 Santa Cruz Mudstone late Miocene
Tsc
> 9 10 Purisima Formation Pliocene and Miocene
Tp
> 10 13 Aromas Sand Quaternary
Qa
> 11 15 Rocks of Sur platform Tertiary and Cretaceous
TKu
> 12 28 Vaqueros(?) Formation Miocene and late Oligocene
Tv(?)
>
Entity_and_Attribute_Detail_Citation:
none
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
United States Geological Survey (USGS),
Coastal and Marine Geology (CMG)
Contact_Person: Florence L. Wong
Contact_Position: Geologist, GIS Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA
Contact_Voice_Telephone: (650) 329-5327
Contact_Facsimile_Telephone: (650) 329-5190
Contact_Electronic_Mail_Address: fwong@usgs.gov
Distribution_Liability:
Please recognize the U.S. Geological Survey (USGS) as the
source of this information.
Although these data have been used by the U.S.
Geological Survey, U.S. Department of the Interior,
no warranty expressed or implied is made by the U.S.
Geological Survey as to the accuracy of the data.
The act of distribution shall not constitute any such
warranty, and no responsibility is assumed by the
U.S. Geological Survey in the use of this data,
software, or related materials.
Metadata_Reference_Information:
Metadata_Date: 20000830
Metadata_Review_Date: 200105
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
United States Geological Survey (USGS),
Coastal and Marine Geology (CMG)
Contact_Person: Florence L. Wong
Contact_Position: Geologist, GIS Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: USGS, MailStop 999, 345 Middlefield Road
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025-3561
Country: USA
Contact_Voice_Telephone: (650) 329-5327
Contact_Facsimile_Telephone: (650) 329-5190
Contact_Electronic_Mail_Address: fwong@usgs.gov
Metadata_Standard_Name:
FGDC Content Standards
for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998