Results 61 to 70 of about 619 (177)

Variability of Arctic sea ice thickness and volume from CryoSat-2 [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
We present our estimates of the thickness and volume of the Arctic Ocean ice cover from CryoSat-2 data acquired between October 2010 and May 2014. Average ice thickness and draft differences are within 0.16 m of measurements from other sources (moorings, submarine, electromagnetic sensors, IceBridge).
R, Kwok, G F, Cunningham
openaire   +2 more sources

River Levels Derived with CryoSat-2 SAR Data Classification—A Case Study in the Mekong River Basin

open access: yesRemote Sensing, 2017
In this study we use CryoSat-2 SAR (delay-Doppler synthetic-aperture radar) data in the Mekong River Basin to estimate water levels. Compared to classical pulse limited radar altimetry, medium- and small-sized inland waters can be observed with CryoSat-2
Eva Boergens   +4 more
doaj   +1 more source

Retracking Cryosat-2 Data in SARIn and LRM Modes for Plateau Lakes: A Case Study for Tibetan and Dianchi Lakes

open access: yesRemote Sensing, 2021
This paper estimates lake level variations over two small and adjacent lakes in the Tibetan plateau (TP), namely Gemang Co and Zhangnai Co, as well as the inland Dianchi Lake in China using CryoSat-2 SARIn-mode and LRM 20-Hz waveforms over the period of ...
Xiaoli Deng   +4 more
doaj   +1 more source

Two Decades of Ross and Weddell Gyre Variability From Observations

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The Weddell and Ross Gyres influence climate‐relevant processes including poleward heat transport, nutrient upwelling and carbon sequestration. However, long‐term tracking of changes to their circulation is limited by the sparsity of observations characteristic of the region.
Julia Neme   +4 more
wiley   +1 more source

Antarctic Grounding Line Mapping From CryoSat‐2 Radar Altimetry [PDF]

open access: yesGeophysical Research Letters, 2017
AbstractWe present a new technique for mapping the grounding line of Antarctic ice shelves using a combination of CryoSat‐2 standard and swath elevation data. Our method is based on detecting the tidal signal in pseudo crossovers and is tested on the Siple Coast region of West Antarctica.
G. J. Dawson, J. L. Bamber
openaire   +3 more sources

Impact assessment of snow thickness, sea ice density and water density in CryoSat-2-derived sea ice thickness [PDF]

open access: yesThe Cryosphere
Sea ice thickness is an essential climate variable, which is often derived from satellite altimetry freeboard estimates, e.g., by CryoSat-2. In order to convert freeboard to sea ice thickness, assumptions are needed for snow thickness, snow density, sea ...
I. Sievers   +2 more
doaj   +1 more source

A Sea Ice Entrapment Event in the Southern Chukchi Sea: Analysis and Prediction

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Amplified Arctic warming is reducing sea ice cover, which is driving an increase in geopolitical interest in the region as it offers the possibility of reducing shipping times between Asia, Europe, and eastern North America, at the risk of increased ice hazards. Here, we examine the case of the Norseman II research ship that was trapped by sea
G. W. K. Moore   +8 more
wiley   +1 more source

Analysis and Inter-Calibration of Wet Path Delay Datasets to Compute the Wet Tropospheric Correction for CryoSat-2 over Ocean

open access: yesRemote Sensing, 2013
Unlike most altimetric missions, CryoSat-2 is not equipped with an onboard microwave radiometer (MWR) to provide wet tropospheric correction (WTC) to radar altimeter measurements, thus, relying on a model-based one provided by the European Center for ...
Clara Lázaro   +2 more
doaj   +1 more source

Revisiting the status of the Arctic's Last Ice Area as a refuge for marine predators

open access: yesEcosphere, Volume 17, Issue 7, July 2026.
Abstract The Last Ice Area (LIA), located north of the Canadian Arctic Archipelago and Greenland, has the Arctic's oldest and thickest sea ice. The LIA is hypothesized to be a potential climate refuge for ice‐dependent top predators as Arctic sea ice continues to decline.
Kristin L. Laidre   +6 more
wiley   +1 more source

SWOT Observations Constrain a 4D‐Var State Estimate of the California Current System

open access: yesEarth and Space Science, Volume 13, Issue 7, July 2026.
Abstract The Surface Water and Ocean Topography (SWOT) mission provides high‐resolution sea surface height (SSH) observations at 2‐km spacing, resolving submesoscale features typical of ageostrophic motions and associated with instabilities. Here, we demonstrate the assimilation of SWOT data into a regional configuration of the MITgcm for the ...
A. Verdy   +4 more
wiley   +1 more source

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