Results 41 to 50 of about 4,330 (196)
CryoSat-2 waveform classification for melt event monitoring
Proceedings of the Northern Lights Deep Learning Workshop, 2022 Measuring the mass balance of ice sheets is important with respect to understanding among others sea level rise, glacier dynamics, global ocean circulation and marine ecosystems. One important parameter of the mass balance is surface melt, which can be estimated from different satellite data sources.
Martijn Vermeer +3 more
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Coastal sea level from inland CryoSat‐2 interferometric SAR altimetry [PDF]
Geophysical Research Letters, 2015 AbstractThe European Space Agency's CryoSat‐2 satellite can operate in a novel synthetic aperture radar interferometric (SARIn) mode where its nominal footprint (swath) is observed by two antennas and the phase difference between the signals is used to determination the exact location of the scatterer through an off‐nadir correction.
Abulaitijiang, Adili +2 more
openaire +1 more source
Comparison of Arctic Sea Ice Thickness from Satellites, Aircraft, and PIOMAS Data
Remote Sensing, 2016 In this study, six Arctic sea ice thickness products are compared: the AVHRR Polar Pathfinder-extended (APP-x), ICESat, CryoSat-2, SMOS, NASA IceBridge aircraft flights, and the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS).
Xuanji Wang +3 more
doaj +1 more source
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 +2 more sources
An improved CryoSat-2 sea ice freeboard retrieval algorithm through the use of waveform fitting [PDF]
The Cryosphere, 2014 We develop a physical model capable of simulating the mean echo power of CryoSat-2 SAR- and SARIn-mode waveforms over sea-ice-covered regions. The model simulations are used to show the importance of variations in the radar backscatter coefficient with ...
N. T. Kurtz, N. Galin, M. Studinger
doaj +1 more source
Remote Sensing, 2021 This paper documents the retrieval of significant ocean surface wave heights in the Arctic Ocean from CryoSat-2 data. We use a semi-analytical model for an idealised synthetic aperture satellite radar or pulse-limited radar altimeter echo power.
Harold Heorton +4 more
doaj +1 more source
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 +1 more source
Arctic sea surface height variability and change from satellite radar altimetry and GRACE, 2003–2014 [PDF]
, 2016 Arctic sea surface height (SSH) is poorly observed by radar altimeters due to the poor coverage of the polar oceans provided by conventional altimeter missions and because large areas are perpetually covered by sea ice, requiring specialized data ...
Aksenov, Y +5 more
core +4 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingThe accuracy and reliability of the latest version of multisource satellite derived Arctic sea ice thickness (SIT) in thinner ice regions are currently uncertain.
Yu Zhang +6 more
doaj +1 more source
Applications for CryoSat-2 satellite magnetic data in studies of Earth’s core field variations
Earth, Planets and Space, 2021 We use 20 years of continuous magnetic field measurements from the Ørsted, CHAMP and Swarm satellite missions, supplemented by calibrated platform magnetometer data from the CryoSat-2 satellite, to study time variations of the Earth’s core field at ...
Magnus D. Hammer +2 more
doaj +1 more source