Monitoring Arctic thin ice: a comparison between CryoSat-2 SAR altimetry data and MODIS thermal-infrared imagery [PDF]
The Cryosphere, 2023 Areas of thin sea ice in the polar regions not only are experiencing the highest rate of sea-ice production but also are, therefore, important hot spots for ocean ventilation as well as heat and moisture exchange between the ocean and the atmosphere ...
F. L. Müller +4 more
doaj +1 more source
Wet tropospheric correction for satellite altimetry using SIRGAS-CON products
Journal of Geodetic Science, 2022 The wet tropospheric correction (WTC) is a required correction to satellite altimetry measurements, mainly due to the atmospheric water vapor delay. On-board microwave radiometers (MWR) provide information for WTC estimation but fail in coastal zones and
Prado Anderson +3 more
doaj +1 more source
A new Arctic MSS model derived from combined Cryosat-2 and ICESat observations
International Journal of Digital Earth, 2022 Due to the existence of seasonal or perennial sea ice cover, the determination of the Arctic sea surface is more difficult than that of mid-low latitudinal oceans.
Guodong Chen +5 more
doaj +1 more source
Detection and Characterization of Ship Targets Using CryoSat-2 Altimeter Waveforms [PDF]
Remote Sensing, 2016 This article describes an investigation of the new possibilities offered by SAR altimetry compared with conventional altimetry in the detection and characterization of non-ocean targets. We explore the capabilities of the first SAR altimeter installed on the European Space Agency satellite CryoSat-2 for the detection and characterization of ships.
Jesús Gómez-Enri +4 more
openaire +4 more sources
Comparison of CryoSat-2 and ENVISAT radar freeboard over Arctic sea ice: toward an improved Envisat freeboard retrieval [PDF]
The Cryosphere, 2017 Over the past decade, sea-ice freeboard has been monitored with various satellite altimetric missions with the aim of producing long-term time series of ice thickness.
K. Guerreiro +8 more
doaj +1 more source
Improved retrieval of land ice topography from CryoSat-2 data and its impact for volume-change estimation of the Greenland Ice Sheet [PDF]
The Cryosphere, 2016 A new methodology for retrieval of glacier and ice sheet elevations and elevation changes from CryoSat-2 data is presented. Surface elevations and elevation changes determined using this approach show significant improvements over ESA's publicly ...
J. Nilsson +3 more
doaj +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
Assimilating CryoSat-2 freeboard to improve Arctic sea ice thickness estimates [PDF]
The Cryosphere, 2023 In this study, a new method to assimilate freeboard (FB) derived from satellite radar altimetry is presented with the goal of improving the initial state of sea ice thickness predictions in the Arctic.
I. Sievers +3 more
doaj +1 more source
The coastal mean dynamic topography in Norway observed by CryoSat‐2 and GOCE [PDF]
Geophysical Research Letters, 2017 AbstractNew‐generation synthetic aperture radar altimetry, as implemented on CryoSat‐2, observes sea surface heights in coastal areas that were previously not monitored by conventional altimetry. Therefore, CryoSat‐2 is expected to improve the coastal mean dynamic topography (MDT). However, the MDT remains highly reliant on the geoid.
Martina Idžanović +2 more
openaire +3 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