Dec 15 1994 ified reference ellipsoid in a coordinate system consis- tent with the definition of the TOPEX/POSEIDON or- bit ephemerides.
Sep 12 2019 reference ellipsoid
products on AVISO/Altimetry CD ROMs containing merged TOPEX/POSEIDON The reference point will usually be either on the reference ellipsoid or the center ...
reference ellipsoid e.g.
Keywords altimeter calibration GPS buoy
wave radiometer measurements. The Topex-Poseidon-derived sea-surface heights have been referred to the GRS80 ellipsoid as for the ERS-1 data.
May 4 2022 The TOPEX/POSEIDON and Jason series of radar altime- ters
Jan 11 2018 composed of the Poseidon-3 radar altimeter from CNES
Mar 10 2022 Ellipsoid Parameters. ICESat(GLAS) adopted the Topex/Poseidon (T/P) ellipsoid (cf.
Nov 29 2019 Altimetry datasets are referenced either to WGS84 ellipsoid or to Topex/Poseidon ellipsoid. A datum conversion from T/P ellipsoid to WGS84 ...
1 Introduction In 2014 the United States National Geodetic Survey (NGS) started producing annual experimental gravimetric geoid models the xGEOID models for the upcoming vertical datum modernization in 2022 the North American-Pacific Geopotential Datum of 2022 (NAPGD2022)
ellipsoid is measured from space through radar altimetry TOPEX/Poseidon (T/P) mission achieved an unprecedented accuracy yielding a huge high quality space-time dataset of precise sea level measurements A stochastic space-time process{Xst} is de?ned as a col-lection of random variables indexed by parameters [st]?R2
GLAS/ICESat (Zwally et al., 2002) was the first laser altimeter to fly on a spacecraft in Earth orbit. The grids available here were generated from the first two years of data (2003 Feb to 2005 May). The ICESat elevations grids for Greenland and Antarctica are available from NSIDC with elevations relative to WGS84 ellipsoid and the EGM96 geoid. The...
Note: UL=upper Left, LL=Lower Left, UR=Upper Right, LR=Lower Right
Links are provided to download the images in either JPEG or POSTSCRIPT format. POSTSCRIPT images are gzipped. Image ranges are limited to display the range of the majority of the data well. Actual limits of values in the grids may be outside the limits shown on the plots. A spike at either end of the histogram colorbar is an indication of this but ...
TOPEX/POSEIDON, a joint mission of NASA and CNES launched in 1992, brought the accuracy of the measurements down initially to a mission goal of 13 cm. As orbit, gravity, and tidal models were improved, TOPEX/POSEIDON actually accomplished sea surface height measurements accurate to 5 cm.
TOPEX/Poseidon used the global perspective available only from space to develop maps of ocean topography showing the barely perceptible hills and valleys of the sea surface. This effort significantly expanded the knowledge developed from shipboard research, which is limited to specific locations.
TOPEX/Poseidon flew two onboard altimeters sharing the same antenna, but only one altimeter was operated at any time, with TOPEX given preference (on average 9 in 10 cycles during the first 10 years of the mission).