EGM96

The NASA GSFC and NIMA Joint Geopotential Model

Table of Contents

• General Description
• Principal authors and collaborating institutions
• Link to the EGM96 web page at NIMA (now NGA or National Geospatial-Intelligency Agency. )
• Availability of the Surface gravity Data
  • Map of source codes used in final surface gravity merged file
    
• How to retrieve the spherical harmonic coefficients.
• Satellite tracking Data in EGM96
• EGM96: Design Considerations
• EGM96: Method of Solution
• Calibration of the Satellite Only Solution
  • Example: Calibration factors for SPOT2 & STELLA
    
  • Example: Calibration factors for EUVE
    
• Plot: RMS Error Per Degree per Coefficient for EGM96S
• Development of the Combination Model
• Plot: RMS Error per Degree per Coefficient for the combination model EGM96 (through deg. 70)
• Cumulative RMS error in geoid undulation.
  
• Calibrated Geoid Error From the JGM-3 and EGM96 Covariances
  
• Geographical Breakdown of Calibrated Geoid Error
• Radial orbit error projections vs inclination for JGM2, JGM3, and EGM96.
  
• Satellite Orbit Error Predictions resulting from Gravity Model Error.
  TOPEX/POSEIDON , SPOT-2 , AJISAI , GEOSAT , LAGEOS-1 , LAGEOS-2 , STARLETTE , STELLA , GEOS-3 , PEOLE, BE-C , D1C , D1D , ERBS , EP/EUVE , C-GRO , XTE , TRMM , GFZ-1 , ERS-1 , EOS , GLAS :
• QSST derived from TOPEX and ERS-1 altimeter data with the EGM96 solution
  
• Model validation using dynamic ocean topography comparisons
• GPS/Leveling Comparisons (NGS dataset, USA)
• GPS/Leveling Comparisons (British Columbia)
• Global Doppler positioning/Leveling Comparisons
• Acknowledgements
• Bibliography
• Links to other pages

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