Steven M. Klosko

TL;DR: The NASA Goddard Space Flight Center, the National Imagery and Mapping Agency (NIMA) and The Ohio State University have collaborated to produce EGM96, an improved degree 360 spherical harmonic model representing the Earth's gravitational potential as discussed by the authors.

TL;DR: In this article, the authors presented the GEM 9 and 10 solutions for the potential coefficients and station coordinates along with a discussion of the new techniques employed, and the new values of the parameters discussed are given.

TL;DR: The TOPEX/POSEIDON (T/P) pre-launch Joint Gravity Model-1 (JGM-1) and the post-launch JGM-2 Earth gravitational models have been developed to support precision orbit determination for T/P as mentioned in this paper.

TL;DR: In this article, an approach similar in concept to altimetric methods that recovers sub-monthly mass flux at a high spatial resolution was presented, using 4° × 4° blocks at 10-day intervals, estimating the mass of surplus or deficit water over a 52° × 60° grid centered on the Amazon basin for July 2003.

TL;DR: In this article, the low degree and order terms in the spherical harmonic model of the tidal potential were observed through the perturbations which are induced on near-earth satellite orbital motions.