Results 1 to 10 of about 1,215 (114)

First-Year and Multiyear Sea Ice Incidence Angle Normalization of Dual-Polarized Sentinel-1 SAR Images in the Beaufort Sea

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Automatic and visual sea ice classification of SAR imagery is impeded by the incidence angle dependence of backscatter intensities. Knowledge of the angular dependence of different ice types is therefore necessary to account for this effect.
Yufang Ye   +2 more
exaly   +3 more sources

Variation in Ringed Seal (Pusa hispida) Density Along a Latitudinal Gradient of Sea‐Ice Conditions [PDF]

open access: yesEcology and Evolution
Anthropogenic climate warming is triggering poleward species redistributions, highlighting the importance of understanding how species distributions and abundance vary along latitudinal gradients.
Cody G. Carlyle   +5 more
doaj   +2 more sources

Multiyear Arctic Ice Classification Using ASCAT and SSMIS

open access: yesRemote Sensing, 2016
The concentration, type, and extent of sea ice in the Arctic can be estimated based on measurements from satellite active microwave sensors, passive microwave sensors, or both.
David Long
exaly   +3 more sources

Nitrogen fixation under declining Arctic sea ice [PDF]

open access: yesCommunications Earth & Environment
With climate change-induced sea ice decline in the Arctic Ocean, nitrogen is expected to become an increasingly important determinant of primary productivity.
Lisa W. von Friesen   +12 more
doaj   +2 more sources

A Satellite-Observed Substantial Decrease in Multiyear Ice Area Export through the Fram Strait over the Last Decade

open access: yesRemote Sensing, 2022
Revealing the changes in the Fram Strait (FS) multiyear ice (MYI) export is crucial due to their climate relevance in the context of the loss rate of MYI being faster than that of the total ice in the Arctic. Here, we estimated winter (October–April) MYI
Yunhe Wang, Haibo Bi, Yu Liang
exaly   +3 more sources

Improving Multiyear Sea Ice Concentration Estimates with Sea Ice Drift

open access: yesRemote Sensing, 2016
Multiyear ice (MYI) concentration can be retrieved from passive or active microwave remote sensing observations. One of the algorithms that combines both observations is the Environmental Canada Ice Concentration Extractor (ECICE).
Yufang Ye, Mohammed Shokr, Gunnar Spreen
exaly   +3 more sources

Spatial-temporal variations of one-year ice in Antarctic different regions, 1988–2020

open access: yesEcological Indicators, 2023
In order to increase the comparability of Antarctic sea ice changes, we proposed a new method to quantitatively assess the spatial–temporal variation characteristics of Antarctic one-year ice based on daily Antarctic sea ice concentration data provided ...
Xingdong Wang, Hailong Zhou, Mingzhu Ji
doaj   +1 more source

Observations of sea ice melt from Operation IceBridge imagery [PDF]

open access: yesThe Cryosphere, 2020
The summer albedo of Arctic sea ice is heavily dependent on the fraction and color of melt ponds that form on the ice surface. This work presents a new dataset of sea ice surface fractions along Operation IceBridge (OIB) flight tracks derived from the ...
N. C. Wright   +5 more
doaj   +1 more source

Retrieval of Snow Depth on Arctic Sea Ice from the FY3B/MWRI

open access: yesRemote Sensing, 2021
Given their high albedo and low thermal conductivity, snow and sea ice are considered key reasons for amplified warming in the Arctic. Snow-covered sea ice is a more effective insulator, which greatly limits the energy and momentum exchange between the ...
Lele Li, Haihua Chen, Lei Guan
doaj   +1 more source

Quantitative and qualitative constraints on hind-casting the formation of multiyear lake-ice covers at Lake El'gygytgyn [PDF]

open access: yesClimate of the Past, 2013
Analysis of the 3.6 Ma, 318 m long sediment core from Lake El'gygytgyn suggests that the lake was covered by ice for millennia at a time for much of its history and therefore this paper uses a suite of existing, simple, empirical degree-day models of ...
M. Nolan
doaj   +1 more source

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