PDF, 67 KB, Ronald L. Brooks and Dennis W. Lockwood/Raytheon ITSS, May 2003 One of the primary NGDR products from the GEOSAT Follow-On (GFO) Altimeter is wind speed. In the course of our analyses, it has been observed by the GFO Performance Assessment Team at Wallops Flight Facility that the GFO wind speed has a small dependency on Receiver Temperature. A temperature correction for the wind speed has been empirically derived, and is described below. [Note: All the figures in this temperature-dependency report have been extracted from Lockwood et al, 2003, the yearly-updated GFO engineering performance assessment report produced by Wallops Flight Facility.]
Graphic, PDF, 49 KB, Mavis L. Driscoll and Richard V. Sailor/Litton TASC, January 8, 2001
PDF, 953 KB, Mavis L. Driscoll and Richard V. Sailor/Litton TASC, January 2001, NASA TM-2001-209984/Volume 2 Abstract: The purpose of this report is to present the results of an analysis of the white noise level in Geosat Follow-On (GFO) altimeter data. The Repeat-Track Method was used to determine noise level. This approach was developed at TASC and has been used to quantify noise levels of all previous satellite altimeter missions (Refs. 1-6). The GFO altimeter was designed to have an RMS white noise level of less than 3.5 centimeters for significant wave height less than 2 meters. The results of the analysis presented here show that the GFO altimeter meets this specification.