Gravity for the Redefinition of the American Vertical
Datum (GRAV-D) Project, Airborne Gravity Data

Block EN04

Block Description:

GRAV-D Block EN04 is located in the Eastern Time Zone, in the North half (north of 40 ° latitude). This was the fourth (04) block of data completed in that region.

   Block Extent                 Data Lines

Download:

• Newest products for this Block (zip)
  NGS released a new version, BETA #2, processed with Inertial Explorer 8.5 on July 23rd, 2013. Zip file contains: ReadMe text file, gravity data file, supplementary data file, block data user manual, xml metadata, kml block extent, and kml block data lines.
  
  The General Airborne Gravity User Manual is available for download on the main data page.


• Images of gravity data for this Block
  Map of Free-Air Gravity Disturbance using Equal Interval (top) and Quantile (bottom) classification
     


• Archive of all product versions for this Block
  Version BETA #1, dated March, 2013, is located here.

How to Cite These Data:

The following citations should be used in all presentations or publications that reference the GRAV-D work. Please replace the DATE tag in the following references with the date you downloaded the data or reports from the NGS website.

To reference the EN04 data file, reference the webpage:
GRAV-D Team (2013). "Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Project, Airborne Gravity Data; Block EN04". Available DATE. Online at: http://www.ngs.noaa.gov/GRAV-D/data_EN04.shtml

To reference the block and survey details, reference the block user manual:
GRAV-D Team (2013). "Block EN04 (Eastern North 04); GRAV-D Airborne Gravity Data User Manual." Monica A. Youngman and Carly A. Weil, ed. BETA #2. Available DATE. Online at: http://www.ngs.noaa.gov/GRAV-D/data_EN04.shtml

To reference the general GRAV-D project operations, reference the General User Manual:
GRAV-D Team (2013). "GRAV-D General Airborne Gravity Data User Manual." Theresa Damiani and Monica Youngman, ed. Version 2. Available DATE. Online at: http://www.ngs.noaa.gov/GRAV-D/data_EN04.shtml

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