Shah, A.K., 2014, Airborne Geophysical Surveys over the 2011 Mineral, Virginia, Earthquake Area: U.S. Geological Survey data release, https://doi.org/10.5066/F78K773V.
Summary
Line data are presented as comma separated values (csv) with the following definitions: LINE Flight line number DIR Flight line direction, degrees clockwise from North DATE Year / Julian day TIME Time (UTM, 24-hour) hh:mm:ss LONG Longitude, WGS84 (degrees) LAT Latitude WGS84 (degrees) x_UTM18N Easting, UTM Zone 18N (meters) y_UTM18N Northing, UTM Zone 18N (meters) RALT Radar altimeter height (meters) LALT Laser altimeter height (meters) MSL GPS elevation, final (orthometric MSL - NAVD88 using GEOID09) (meters) DEM Digital elevation model (meters) FGRAVFL15 Levelled free air gravity, 15 s half-wavelength filter, 1,000 m half-wavelength grid filter (mGal) [...]
Summary
Line data are presented as comma separated values (csv) with the following definitions:
LINE Flight line number
DIR Flight line direction, degrees clockwise from North
DATE Year / Julian day
TIME Time (UTM, 24-hour) hh:mm:ss
LONG Longitude, WGS84 (degrees)
LAT Latitude WGS84 (degrees)
x_UTM18N Easting, UTM Zone 18N (meters)
y_UTM18N Northing, UTM Zone 18N (meters)
RALT Radar altimeter height (meters)
LALT Laser altimeter height (meters)
MSL GPS elevation, final (orthometric MSL - NAVD88 using GEOID09) (meters)
DEM Digital elevation model (meters)
FGRAVFL15 Levelled free air gravity, 15 s half-wavelength filter, 1,000 m half-wavelength grid filter (mGal)
SBGCOR267 Bouguer correction, 2.67 g/cm3 (mGal)
SBGCOR260 Bouguer correction, 2.60 g/cm3 (mGal)
SBGCOR280 Bouguer correction, 2.80 g/cm3 (mGal)
ECCOR267 Earth curvature correction, 2.67 g/cm3 (mGal)
ECCOR260 Earth curvature correction, 2.60 g/cm3 (mGal)
ECCOR280 Earth curvature correction, 2.80 g/cm3 (mGal)
TERCOR267 Topographic correction, 2.67 g/cm3 (mGal)
TERCOR260 Topographic correction, 2.60 g/cm3 (mGal)
TERCOR280 Topographic correction, 2.80 g/cm3 (mGal)
BGL15S267 Bouguer anomaly levelled, 15 s half-wavelength filter, 2.67 g/cm3 (mGal)
BGL15S260 Bouguer anomaly levelled, 15 s half-wavelength filter, 2.60 g/cm3 (mGal)
BGL15S280 Bouguer anomaly levelled, 15 s half-wavelength filter, 2.80 g/cm3 (mGal)
The projection for UTM Zone 18N is as follows:
Datum: NAD83
Base Latitude: 0.00 degrees
Central Meridian: -75.00 degrees
False Easting: 500,000 meters
False Northing: 0 meters
Scale factor at natural origin: 0.9996
Detailed information regarding data collection and processing can be found in the
technical report.
These data should be cited as follows: Shah, A., 2014. Airborne Geophysical Surveys over the 2011 Mineral, Virginia Earthquake Area. U.S. Geological Survey ScienceBase. Data files and documentation. doi: 10.5066/F78K773V. Access date.
