Results 51 to 60 of about 4,424 (199)

Antarctic ice shelf thickness from CryoSat‐2 radar altimetry [PDF]

open access: yesGeophysical Research Letters, 2015
AbstractIce shelf thickness for the whole of Antarctica is derived from 4 years (2011–2014) of CryoSat‐2 (CS2) radar altimetry measurements using the assumption that the shelves are in hydrostatic equilibrium. The satellite orbit and novel synthetic aperture radar interferometric mode of CS2 results in 92.3% data coverage over the ice shelves, with ...
Chuter, S. J., Bamber, J. L.
openaire   +3 more sources

Intercomparisons and Evaluations of Satellite-Derived Arctic Sea Ice Thickness Products

open access: yesRemote Sensing
Currently, Arctic sea ice thickness (SIT) data with extensive spatiotemporal coverage primarily comes from satellite observations, including CryoSat-2, Soil Moisture and Ocean Salinity (SMOS), and the Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2).
Feifan Chen   +4 more
doaj   +1 more source

Estimating snow depth over Arctic sea ice from calibrated dual-frequency radar freeboards [PDF]

open access: yesThe Cryosphere, 2018
Snow depth on sea ice remains one of the largest uncertainties in sea ice thickness retrievals from satellite altimetry. Here we outline an approach for deriving snow depth that can be applied to any coincident freeboard measurements after calibration
I. R. Lawrence   +5 more
doaj   +1 more source

Joint inversion estimate of regional glacial isostatic adjustment in Antarctica considering a lateral varying Earth structure (ESA STSE Project REGINA) [PDF]

open access: yes
A major uncertainty in determining the mass balance of the Antarctic ice sheet from measurements of satellite gravimetry, and to a lesser extent satellite altimetry, is the poorly known correction for the ongoing deformation of the solid Earth caused by
Bamber, Jonathan L.   +11 more
core   +1 more source

Greenland 2012 melt event effects on CryoSat‐2 radar altimetry [PDF]

open access: yesGeophysical 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

Monitoring the Hydrological Activities of Antarctic Subglacial Lakes Using CryoSat-2 and ICESat-2 Altimetry Data

open access: yesRemote Sensing, 2022
Monitoring the hydrological activities of subglacial lakes is critical to understanding the subglacial hydrological system and evaluating the internal mass changes of the Antarctic ice sheet.
Yi Fan   +6 more
doaj   +1 more source

Evaluating Arctic Thin Ice Thickness Retrieved from Latest Version of Multisource Satellite Products

open access: yesRemote Sensing
Currently, the performance of sea ice thickness (SIT) data retrieved from multisource satellite products in the Arctic seasonal ice zones remains unclear. This study presented the spatiotemporal intercomparison and evaluation of satellite data, including
Huan Li   +8 more
doaj   +1 more source

Application of CryoSat-2 altimetry data for river analysis and modelling [PDF]

open access: yes
Availability of in situ river monitoring data, especially of data shared across boundaries, is decreasing, despite growing challenges for water resource management across the entire globe.
Bauer-Gottwein, Peter   +4 more
core   +1 more source

GPD+ Wet Tropospheric Corrections for CryoSat-2 and GFO Altimetry Missions [PDF]

open access: yesRemote Sensing, 2016
Due to its large space-time variability, the wet tropospheric correction (WTC) is still considered a significant error source in satellite altimetry. This paper presents the GNSS (Global Navigation Satellite Systems) derived Path Delay Plus (GPD+), the most recent algorithm developed at the University of Porto to retrieve improved WTC for radar ...
M. Joana Fernandes, Clara Lázaro
openaire   +2 more sources

ANTARCTIC ICE SHEET SURFACE MASS BALANCE ESTIMATES FROM 2003 TO 2015 USING ICESAT AND CRYOSAT-2 DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
An assessment of Antarctic ice sheet surface mass balance from 2003 to 2015 has been carried out using a combination of ICESat data from 2003 to 2009 and CryoSat-2 data from 2010 to 2015.
H. Xie   +13 more
doaj   +1 more source

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