GRAV-D Data Products

Products will be posted as they are completed.

Available data may include airborne and terrestial survey information, gravity data, and gravity-based geoids or datums. Click the block of interest to view general information and a link will appear if data are available.

General Airborne Gravity User Manual

The General User Manual, which describes data distribution, field operation details, post-processing, and how to calculate commonly used gravity values, is available below. User Manuals for each block, which describes specific collection and error details for those data, are included in the zip file when the data is downloaded. Each User Manual specifys which version of the General Manual applies to that data set.

Version 2.0: Released on March 28, 2013, this version includes significant updates to field procedures and post-processing and applies to data releases starting in February 2013.

Version 1.1: Released on December 5, 2012, this version supersedes v 1.0 of the manual and fixes minor errors in the previous version. Most important is a corrected typo for the GRS-80 first eccentricity squared value reported on page 20 of the document.

Map Key - Airborne Gravity Data

Green: Available data and metadata
Blue: Data being processed
Orange: Data collection underway
White: Planned for data collection