Results 61 to 70 of about 120,290 (314)

Seasonal forecasts of Arctic sea ice initialized with observations of ice thickness [PDF]

open access: yesGeophysical Research Letters, 2012
Seasonal forecasts of the September 2012 Arctic sea ice thickness and extent are conducted starting from 1 June 2012. An ensemble of forecasts is made with a coupled ice‐ocean model. For the first time, observations of the ice thickness are used to correct the initial ice thickness distribution to improve the initial conditions.
R. Lindsay   +9 more
openaire   +3 more sources

Linking Regional Winter Sea Ice Thickness and Surface Roughness to Spring Melt Pond Fraction on Landfast Arctic Sea Ice

open access: yesRemote Sensing, 2017
The Arctic sea ice cover has decreased strongly in extent, thickness, volume and age in recent decades. The melt season presents a significant challenge for sea ice forecasting due to uncertainty associated with the role of surface melt ponds in ice ...
Sasha Nasonova   +3 more
doaj   +1 more source

Sea ice and snow characteristics from year-long transects at the MOSAiC Central Observatory

open access: yesElementa: Science of the Anthropocene, 2023
Repeated transects have become the backbone of spatially distributed ice and snow thickness measurements crucial for understanding of ice mass balance.
P. Itkin   +12 more
semanticscholar   +1 more source

Variability of Arctic Sea Ice Thickness Using PIOMAS and the CESM Large Ensemble

open access: yes, 2018
Because of limited high-quality satellite and in situ observations, less attention has been given to the trends in Arctic sea ice thickness and therefore sea ice volume than to the trends i...
Zachary M. Labe   +2 more
semanticscholar   +1 more source

The relation between sea ice thickness and freeboard in the Arctic [PDF]

open access: yesThe Cryosphere, 2010
Abstract. Retrieval of Arctic sea ice thickness from radar altimeter freeboard data, to be provided by CryoSat-2, requires observational data to verify the relation between the two variables. In this study in-situ ice and snow data from 689 observation sites obtained during the Sever expeditions in the 1980s have been used to establish an empirical ...
Alexandrov, Vitaly   +3 more
openaire   +5 more sources

An Improved Algorithm for the Retrieval of the Antarctic Sea Ice Freeboard and Thickness from ICESat-2 Altimeter Data

open access: yesRemote Sensing, 2022
ICESat-2 altimeter data could be used to estimate sea ice freeboard and thickness values with a higher measuring accuracy than that achievable with data provided by previous altimeter satellites.
Xiaoping Pang   +6 more
doaj   +1 more source

Sea ice thickness distribution in the Arctic Ocean

open access: yesCold Regions Science and Technology, 1987
Abstract Data from the unclassified literature were reviewed to determine the regional and seasonal distributions of sea ice thickness, pressure ridging statistics, frequency of occurrence of polynyas, and keel/sail height ratios. Seasonal and regional maps and histograms of these properties were constructed.
Bourke, Robert H., Garrett, Robert P.
openaire   +3 more sources

Arctic-Wide Sea Ice Thickness Estimates From Combining Satellite Remote Sensing Data and a Dynamic Ice-Ocean Model with Data Assimilation During the CryoSat-2 Period

open access: yesJournal of Geophysical Research: Oceans, 2018
Exploiting the complementary character of CryoSat-2 and Soil Moisture and Ocean Salinity satellite sea ice thickness products, daily Arctic sea ice thickness estimates from October 2010 to December 2016 are generated by an Arctic regional ice-ocean ...
L. Mu   +5 more
semanticscholar   +1 more source

Targeting the AKT/mTOR pathway attenuates the metastatic potential of colorectal carcinoma circulating tumor cells in a murine xenotransplantation model

open access: yesMolecular Oncology, EarlyView.
Dual targeting of AKT and mTOR using MK2206 and RAD001 reduces tumor burden in an intracardiac colon cancer circulating tumor cell xenotransplantation model. Analysis of AKT isoform‐specific knockdowns in CTC‐MCC‐41 reveals differentially regulated proteins and phospho‐proteins by liquid chromatography coupled mass spectrometry. Circulating tumor cells
Daniel J. Smit   +19 more
wiley   +1 more source

Seasonal and Interannual Variations in Sea Ice Thickness in the Weddell Sea, Antarctica (2019–2022) Using ICESat-2

open access: yesRemote Sensing
The sea ice extent in the Weddell Sea exhibited a positive trend from the start of satellite observations in 1978 until 2016 but has shown a decreasing trend since then.
Mansi Joshi   +5 more
doaj   +1 more source

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