|
|
|
|
|
|
|
|
|
|
1092 |
Missouri '79 |
USGS |
12/79-01/80 |
0.5 mi. |
N-S |
1200 B |
1040 |
IGRF75 |
OF83-087 |
1129 |
Harrison |
USGS |
04/87-05/87 |
0.46 mi. |
N-S |
500 AG |
6175 |
DIGRF |
MF-1994B |
1143 |
New Madrid '90 |
USGS |
08/90-10/90 |
0.28 mi. |
E-W |
300 AG |
3836 |
DIGRF |
OF02-361 |
1146 |
New Madrid '91 |
USGS |
11/91 |
0.25 mi. |
E-W |
500 AG |
480 |
DIGRF |
OF02-361 |
1147A |
New Madrid '92 |
USGS |
05/92-08/92 |
0.25 mi. |
E-W |
500 AG |
4032 |
DIGRF |
OF02-361 |
3124 |
Rolla |
Applied |
06/78-07/78 |
0.5 mi. |
N-S |
1800 B |
6350 |
IGRF75 |
OF79-966 |
4060 |
Hercules Glades |
HighLife |
07/81 |
0.5 mi. |
N-S |
2000 B |
840 |
IGRF75, 54484 |
OF82-943 |
4122 |
Springfield |
Applied |
10/83 |
1 mi. |
N-S |
2000 B |
4475 |
IGRF80 |
OF84-648 |
KS08 |
Joplin |
KS G.S. |
08/84-07/85 |
0.5 mi. |
E-W |
500 AG |
15500 |
DIGRF |
OF89-147 |
Description of Table
No.: Internal USGS
identification number
Name: Internal project name (not always the name used in
publication title)
Flown By: Company or government agency who flew the original
survey
Spacing and Dir.: Primary flight-line spacing and
primary flight-line direction
Altitude: Primary flight altitude in feet; B = barometric
elevation, AG = above ground draped over topography
LnMi.: Approximate total of line miles flown for this survey
Datum: Indicates if a regional field was removed and, if
it could be determined, the base value removed. Total field = no regional
was removed. Arb. (arbitrary) datum = the base value removed was not
stated on the map or in survey reports.
Publication: Brief publication reference*. USGS publications are listed as: Open-File reports
= OFxx-yyyy where xx is the publication year, Bulletins and Professional
Papers = B-yyyy or P-yyyy, Geophysical Maps = GP-yyyy, Miscellaneous
Field Studies Maps = MF-yyyy, Miscellaneous Investigations Maps = I-yyyy.
*For a full reference for USGS publications see: http://library.usgs.gov/