EGM

EGM may stand for:

See also

Electronic Gaming Monthly

Electronic Gaming Monthly (often abbreviated to EGM) is a monthly American video game magazine. It offers video game news, coverage of industry events, interviews with gaming figureheads, editorial content, and product reviews.

History

In 1988, the publication was originally founded as U.S. National Video Game Team's Electronic Gaming Monthly under Sendai Publications. In 1994, EGM spun off EGM², which focused on expanded cheats and tricks (i.e., with maps and guides). It eventually became Expert Gamer and finally the defunct GameNOW. After 83 issues (up to June 1996), EGM switched from Sendai Publishing to Ziff Davis publisher. Until January 2009, EGM only covered gaming on console hardware and software. It was relaunched in April 2010, then published by EGM Media, LLC, widening its coverage to the PC and mobile gaming markets.

Notable contributors to Electronic Gaming Monthly have included artist Jeremy "Norm" Scott, Dan Hsu, Sushi-X, and Seanbaby. In addition, writers of EGM's various sister publications – including GameNow, Computer Gaming World/Games for Windows: The Official Magazine, Official U.S. PlayStation Magazine – would regularly contribute to EGM, and vice versa.

EGM96

EGM96 (Earth Gravitational Model 1996) is a geopotential model of the Earth consisting of spherical harmonic coefficients complete to degree and order 360.

Description

EGM96 is a composite solution, consisting of:

This model is the result of a collaboration between the National Imagery and Mapping Agency (NIMA), the NASA Goddard Space Flight Center (GSFC), and the Ohio State University.

The joint project took advantage of new surface gravity data from many different regions of the globe, including data newly released from the NIMA archives. Major terrestrial gravity acquisitions by NIMA since 1990 include airborne gravity surveys over Greenland and parts of the Arctic and the Antarctic, surveyed by the Naval Research Lab (NRL) and cooperative gravity collection projects, several of which were undertaken with the University of Leeds. These collection efforts have improved the data holdings over many of the world's land areas, including Africa, Canada, parts of South America and Africa, Southeast Asia, Eastern Europe, and the former Soviet Union. In addition, there have been major efforts to improve NIMA's existing 30′ mean anomaly database through contributions over various countries in Asia.