Altimetry - an overview | ScienceDirect Topics The first altimetry mission was Geos-3, from 1975 to 1978, which had an accuracy of 100 cm Seasat, which only operated for about three months in 1978, was twice as accurate (50 cm) The highly successful Navy Geosat mission, 1985–1989, was also accurate to 50 cm and operated for four years, providing the first high-quality altimetric dataset The Geosat mission was the first to employ an
Altimetry - an overview | ScienceDirect Topics Altimetry is defined as the estimation of an object's height above a stable point, typically measured from an altimeter platform such as a satellite or aircraft to the Earth's surface AI generated definition based on: Nonlinear Ocean Dynamics, 2021
A review of altimetry waveform retracking for inland water levels In recent decades, satellite altimetry has become a valuable supplement for inland water applications This technology has enabled remote and regular observation of water levels over lakes, rivers, and reservoirs [[5], [6], [7]] Among the inland water bodies, smaller ones have an important role in the water cycle [8, 9] New altimetry missions (e g , ICESat-2, Sentinel-6, SWOT) offer
Reconstructing Tibetan Plateau lake bathymetry using ICESat-2 photon . . . Canary triangles are 60 lakes for simulating bathymetry using ICESat-2 penetrating photon altimetry data combined with the regression models b) Temporal distribution of ICESat-2 ATLAS altimetry data acquired during 2019–2023 The number of ATL03 beams used for each lake is denoted in brackets The paper is structured as follows
Satellite Altimetry - an overview | ScienceDirect Topics Satellite altimetry is defined as a technique for measuring heights of the Earth's surface from a satellite, primarily focused on sea surface height, with an accuracy of about ±1 cm on a global scale It involves measuring distances from the satellite to various surfaces such as oceans, lakes, rivers, and ice, enabling the creation of surface profiles along satellite orbits AI generated
Assessing the accuracy of satellite radar altimetry for inland water . . . In order to bring the altimetry and the hydrology communities together, there is the need for an inland water Thematic Data Product (TDP) that strengthens the space-hydrology thematic, promotes the use of altimetry products, reaches a wider community of users and improves our knowledge of hydrology
Exploring grazing angle GNSS-R for precision altimetry: A comparative . . . The first section is dedicated to the outcomes of the altimetry comparison between radar altimetry and GG-R measurements Subsequently, the second subsection offers a similar analysis but focuses solely on GG-R measurements The final section provides an examination of the missions coverage and GG-R coherency distribution
Mountain snow depth retrievals from customized processing of ICESat-2 . . . The water resources community needs accurate snow depth data for improved basin-wide snow depth estimates The NASA ICESat-2 mission has provided over four years of global satellite laser altimetry measurements since October 2018
Advances in estimating Sea Level Rise: A review of tide gauge . . . In-situ sea level observation through tide gauges remains the best approach for long-term coastal sea level study • Satellite altimetry is suitable for contemporary sea level observations at global and regional scales • Integration of multiple systems is essential for detailed understating of global, regional and local mean sea level