Availability of the Surface gravity Data used in EGM96

Gravity Anomaly Data

The gravity anomaly data files used in the development of EGM96 are available from the following sources via anonymous FTP:

• on cddis.gsfc.nasa.gov. . Cd to the directory pub/egm96/gravity_data/.

In addition, a file containing harmonic coefficients of the potential is provided. These coefficients may be used to derive "fill-in" values for areas void of any other type of gravity anomaly information. This file is called:

EGM96S_TO040_RTI.F041T360_JGP95E

The documentation describing these files is provided in two forms:
docum_gravity_data.mac_word5.1 (Macintosh WORD 5.1 format).
docum_gravity_data.PS (PostScript format).

Please ftp the documentation files first. The data files are ASCII and instructions on how to read and interpret the information is given in the documentation files.

If you are unable to 'translate' either format of the documentation files please send e-mail to:

npavlis@geodesy2.gsfc.nasa.gov

or flemoine@ares.gsfc.nasa.gov

Include your complete address in your message. A hard copy of the documentation will be faxed or mailed to you.

Source Codes for Final Merged Surface Gravity File

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