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Data Files:
CEUS_GRAV_<varies>_CEUSSSC_R0.tif


Data Description:
These data sets present gravity anomaly data compiled from several public-domain and unpublished sources for use in the CEUS-SSC Project. Bouguer, free-air, isostatic, and various derivatives of these data sets are provided. Data are presented in milligals (mGal) or mGal per kilometer (mGal/km) as noted below.

File Name
Data Description
CEUS_GRAV_Freeair_CEUSSSC_R0.TIF Free-air anomaly (mGal)
CEUS_GRAV_Bouguer_CEUSSSC_R0.TIF Complete Bouguer anomaly with free-air anomaly in marine areas (mGal)
CEUS_GRAV_RI_CEUSSSC_R0.TIF Residual isostatic anomaly (mGal)
CEUS_GRAV_Isostatic_CEUSSSC_R0.TIF Regional isostatic anomaly (mGal)
CEUS_GRAV_RI_1VD_CEUSSSC_R0.TIF First vertical derivative of residual isostatic anomaly (mGal/km)
CEUS_GRAV_Bouguer_1VD_CEUSSSC_R0.TIF First vertical derivative of Bouguer with free-air anomaly in marine areas (mGal/km)
CEUS_GRAV_Bouguer_LP_240km_CEUSSSC_R0.TIF Complete Bouguer anomaly (with marine free-air) low pass filtered at 240 km (mGal)
CEUS_GRAV_Bouguer_HP_240km_CEUSSSC_R0.TIF Complete Bouguer anomaly (with marine free-air) high pass filtered at 240 km (mGal)
CEUS_GRAV_Bouguer_HP_120km_CEUSSSC_R0.TIF Complete Bouguer anomaly (with marine free-air) high pass filtered at 120 km (mGal)
CEUS_GRAV_Bouguer_UC_40km_CEUSSSC_R0.TIF Bouguer anomaly with marine free-air anomaly upward continued to 40 km (mGal)
CEUS_GRAV_Bouguer_UC_40km_CEUSSSC_R0.TIF CEUS_GRAV_Bouguer-Bouguer anomaly with marine free-air minus the Bouguer anomaly with marine free-air anomaly upward continued to 40 km (mGal)
CEUS_GRAV_Bouguer_UC_100km_CEUSSSC_R0.TIF Bouguer anomaly with marine free-air anomaly upward continued to 100 km (mGal)
CEUS_GRAV_Bouguer-Bouguer_UC_100km_CEUSSSC_R0.TIF Bouguer anomaly with marine free-air minus the Bouguer anomaly with marine free-air anomaly upward continued to100 km (mGal)
CEUS_GRAV_RI_HD_CEUSSSC_R0.TIF Horizontal derivative of residual isostatic anomaly (mGal/km)
CEUS_GRAV_RI_HD_1VD_CEUSSSC_R0.TIF Horizontal derivative of first vertical derivative of residual isostatic anomaly (mGal/km)

Shaded relief versions of the above shapefiles are presented where possible. The shaded relief of the gravity anomalies are provided in two versions. Those named with “315hs” in the file name present a shaded relief with a sun orientation of 315 degrees (45 degrees west of north) and a sun angle of 30 degrees above the horizon, while those with “180hs” in the file name present a shaded relief with a sun orientation of 180 degrees (south) and a sun angle of 30 degrees above the horizon.


Source (Internet URL, CD/DVD-ROM):
Keller, G.R., 2010, personal communication.


Author/Publisher/Year:
CEUS-SSC Project.


Data Summary:
Data provided at a grid resolution of 0.033 decimal degrees and converted to TIFF format. Data are presented in geographic coordinates on the North American Datum of 1983.


Disclaimer or Constraints on Use:
No constraints have been identified.

 


Figure A-16
CEUS-SSC free-air gravity anomaly grid. Shaded relief with 315-degree azimuth and 30-degree inclination applied

 


Figure A-17
CEUS-SSC free-air gravity anomaly grid. Shaded relief with 180-degree azimuth and 30-degree inclination applied

 


Figure A-18
CEUS-SSC complete Bouguer gravity anomaly grid with free-air gravity anomaly in marine areas. Shaded relief with 315-degree azimuth and 30-degree inclination applied

 


Figure A-19
CEUS-SSC complete Bouguer gravity anomaly grid with free-air gravity anomaly in marine areas. Shaded relief with 180-degree azimuth and 30-degree inclination applied

 


Figure A-20
CEUS-SSC residual isostatic gravity anomaly grid. Shaded relief with 315 degree azimuth and 30 degree inclination applied

 


Figure A-21
CEUS-SSC residual isostatic gravity anomaly grid Shaded relief with 180 degree azimuth and 30-degree inclination applied

 


Figure A-22
CEUS-SSC regional isostatic gravity anomaly grid

 


Figure A-23
CEUS-SSC first vertical derivative of residual isostatic gravity anomaly grid

 


Figure A-24
CEUS-SSC first vertical derivative of Bouguer gravity anomaly grid with free-air anomaly in marine areas

 


Figure A-25
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid low pass filtered at 240 km

 


Figure A-26
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid high pass filtered at 240 km. Shaded relief with 315-degree azimuth and 30-degree inclination applied

 


Figure A-27
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid high pass filtered at 240 km. Shaded relief with 180-degree azimuth and 30-degree inclination applied

 


Figure A-28
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid high pass filtered at 120 km. Shaded relief with 315-degree azimuth and 30-degree inclination applied

 


Figure A-29
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid high pass filtered at 120 km. Shaded relief with 180-degree azimuth and 30-degree inclination applied

 


Figure A-30
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid upward continued to 40 km

 


Figure A-31
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid minus the complete Bouguer (with marine free-air) gravity anomaly upward continued to 40 km. Shaded relief with 315-degree azimuth and 30-degree inclination applied

 


Figure A-32
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid minus the complete Bouguer (with marine free-air) gravity anomaly upward continued to 40 km. Shaded relief with 180-degree azimuth and 30-degree inclination applied

 


Figure A-33
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid upward continued to 100 km



Figure A-34
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid minus the complete Bouguer (with marine free-air) gravity anomaly anomaly upward continued to 100 km. Shaded relief with 315-degree azimuth and 30-degree inclination applied




Figure A-35
CEUS-SSC complete Bouguer (with marine free-air) gravity anomaly grid minus the complete Bouguer (with marine free-air) gravity anomaly upward continued to 100 km. Shaded relief with 180-degree azimuth and 30-degree inclination applied

 


Figure A-36
CEUS-SSC horizontal derivative of residual isostatic gravity anomaly grid



Figure A-37
CEUS-SSC horizontal derivative of first vertical derivative of residual isostatic gravity anomaly grid

 

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