Results 11 to 20 of about 24,572,978 (199)
Comparing elevation and backscatter retrievals from CryoSat-2 and ICESat-2 over Arctic summer sea ice [PDF]
The Cryosphere, 2023 The CryoSat-2 radar altimeter and ICESat-2 laser altimeter can provide complementary measurements of the freeboard and thickness of Arctic sea ice. However, both sensors face significant challenges for accurately measuring the ice freeboard when the sea ...
G. J. Dawson, J. C. Landy
doaj +3 more sources
Remote Sensing, 2021 In this study, we present a new level-2 processing chain dedicated to the CryoSat-2 Synthetic Aperture Radar Interferometric (SARIn) measurements acquired over ice sheets.
Jérémie Aublanc +4 more
doaj +2 more sources
Classification of CryoSat-2 Radar Echoes [PDF]
, 2015 Sea-ice thickness at global scale is an important variable in the polar climate system. Only satellite altimeters such as onboard the CryoSat-2 mission allow us to obtain sea-ice thickness on hemispherical scale. Accurate CryoSat-2 altimeter range measurements provide surface elevations which have to be referenced to the local sea level to obtain sea ...
Robert Ricker +3 more
openaire +3 more sources
Mapping ice sheet grounding lines with CryoSat-2 [PDF]
Advances in Space Research, 2018 The boundary between grounded and floating ice is an important glaciological parameter, because it delineates the lateral extent of an ice sheet and it marks the optimal location for computing ice discharge. We present a method for detecting the grounding line as the break in ice sheet surface slope, computed from CryoSat-2 elevation measurements using
Hogg, AE +4 more
core +6 more sources
Synthesis of the ICESat/ICESat-2 and CryoSat-2 observations to reconstruct time series of lake level
International Journal of Digital Earth, 2023 Synthesis of multi-satellite altimetry facilitates the acquisition of long-term changes in lake level but may induce biases due to inconsistent data sources, and thus remains largely unexplored.
Ye Feng +6 more
doaj +2 more sources
Near-real-time Arctic sea ice thickness and volume from CryoSat-2 [PDF]
The Cryosphere, 2016 Timely observations of sea ice thickness help us to understand the Arctic climate, and have the potential to support seasonal forecasts and operational activities in the polar regions.
R. L. Tilling, A. Ridout, A. Shepherd
doaj +3 more sources
Greenland 2012 melt event effects on CryoSat‐2 radar altimetry [PDF]
Geophysical Research Letters, 2015 AbstractCryoSat‐2 data are used to study elevation changes over an area in the interior part of the Greenland Ice Sheet during the extreme melt event in July 2012. The penetration of the radar signal into dry snow depends heavily on the snow stratigraphy, and the rapid formation of refrozen ice layers can bias the surface elevations obtained from radar
Johan Nilsson +10 more
openaire +3 more sources
Calibrating the SAR SSH of Sentinel-3A and CryoSat-2 over the Corsica Facilities
Remote Sensing, 2018 Initially developed to monitor the performance of TOPEX/Poseidon and to follow the Jason legacy satellite altimeters at Senetosa Cape, Corsica, this calibration/validation site has been extended to include a new location at Ajaccio. This addition enables
Pascal Bonnefond +11 more
doaj +2 more sources
Water level analysis in Tibet using CryoSat-2 [PDF]
, 2019 While the water level monitoring inTibet suffers data gaps due to insufficient in situ gauge stations, the satellite altimetry serves as an efficient alternative. In this work, measurements from the CryoSat-2 mission are employed and analyzed to determine water level time series in various lakes throughout Tibetan region. The time series are calculated
Yan, Lun
core +8 more sources
Coastal sea level from CryoSat-2 SARIn altimetry in Norway [PDF]
Advances in Space Research, 2018 Abstract Conventional (pulse-limited) altimeters determine the sea surface height with an accuracy of a few centimeters over the open ocean. Sea surface heights and tide-gauge sea level serve as each other’s buddy check. However, in coastal areas, altimetry suffers from numerous effects, which degrade its quality.
Idzanovic, Martina +2 more
openaire +4 more sources