Results 11 to 20 of about 14,771 (237)

Current state of art of satellite altimetry

open access: yesGeodesy and Cartography, 2017
One of the fundamental problems of modern geodesy is precise defi nition of the gravitational fi eld and its changes in time. This is essential in positioning and navigation, geophysics, geodynamics, oceanography and other sciences related to the climate
Łyszkowicz Adam Bolesław   +1 more
doaj   +4 more sources

Satellite altimetry and operational oceanography: from Jason-1 to SWOT [PDF]

open access: yesOcean Science
The development and evolution of satellite altimetry and operational oceanography are very closely linked. By providing all weather, global, and real-time observations of sea level, a key variable to constrain ocean analysis and forecasting systems ...
P.-Y. Le Traon   +9 more
doaj   +2 more sources

Coastal altimetry

open access: yes, 2011
Table of contentsPreface.- Chapter 1: Altimetry Missions: past, present and future.- Chapter 2: From Research to Operations: The USDA Global Reservoir and Lake Monitor.- Chapter 3: User requirements in the coastal ocean for satellite altimetry.- Chapter ...

core   +5 more sources

Satellite Altimetry

open access: yes, 2019
Satellite altimetry measures the topography of the sea surface, with high-resolution, global coverage and short revisit time. Since the very first missions in the mid-1970s, the accuracy of a single sea surface height measurement has increased by a ...
Anny Cazenave, Cazenave, Anny
core   +2 more sources

Sea state and rain: a second take on dual-frequency altimetry [PDF]

open access: yes, 2004
TOPEX and Jason were the first two dual-frequency altimeters in space, with both operating at Ku- and C-band. Each thus gives two measurements of the normalized backscatter, sigma0, (from which wind speed is calculated) and two estimates of wave height ...
Quartly, G.D.
core   +1 more source

Ocean Currents Reconstruction from a Combination of Altimeter and Ocean Colour Data: A Feasibility Study

open access: yesRemote Sensing, 2021
Measuring the ocean surface currents at high spatio-temporal resolutions is crucial for scientific and socio-economic applications. Since the early 1990s, the synoptic and global-scale monitoring of the ocean surface currents has been provided by ...
Daniele Ciani   +4 more
doaj   +1 more source

Impact of Ocean Domain Definition on Sea Level Budget

open access: yesRemote Sensing, 2021
Total sea level changes from space radar altimetry are mainly decomposed into two contributions of mass addition and volume expansion of oceans, measured by GRACE space gravimeter and Argo float array, respectively.
Taehwan Jeon
doaj   +1 more source

Quantifying Surface‐Height Change Over a Periglacial Environment With ICESat‐2 Laser Altimetry

open access: yesEarth and Space Science, 2021
We use Ice, Cloud, and land Elevation Satellite 2 (ICESat‐2) laser altimetry crossovers and repeat tracks collected over the North Slope of Alaska to estimate ground surface‐height change due to the seasonal freezing and thawing of the active layer.
R. J. Michaelides   +3 more
doaj   +1 more source

Improved Determination of Europa's Long‐Wavelength Topography Using Stellar Occultations

open access: yesEarth and Space Science, 2021
Europa Clipper will arrive at Jupiter at the end of this decade and will explore Europa through a series of flybys. One of its many goals is to characterize Europa's topography and global shape using the Europa Imaging System and Radar for Europa ...
Jacob N. H. Abrahams   +6 more
doaj   +1 more source

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