Regional Geoid Improvements From Of1fshore Aerogravity Profiles

Processing Approach

•20 km along track filter

•Crossover analysis for internal accuracy

•Upward continue gravity anomalies

•Comparison of observations & gravity anomalies at 7.6 km to establish external accuracy

•Remove EGM reference field at elevation

•Downward continue to surface and restore reference field

•Compare to gravity anomalies at the surface


	FMS/IMU provides data for removing most along-track aircraft noise
	20-km filter removes remaining signal
	Anticipate 2 mgal accuracy
	EGM will either be EGM96 or GGM01C
	Gravity anomalies will either be gridded surface data (taking into account elevations) or Faye Anomalies