Results 1 to 10 of about 2,283,779 (307)

Assessment of Arctic sea ice simulations in cGENIE model and projections under RCP scenarios [PDF]

open access: yesScientific Reports
Simulating and predicting Arctic sea ice accurately remains an academic focus due to the complex and unclear mechanisms of Arctic sea ice variability and model biases.
Di Chen, Min Fu, Xin Liu, Qizhen Sun
doaj   +2 more sources

INCORRECT MATCH DETECTION METHOD FOR ARCTIC SEA-ICE RECONSTRUCTION USING UAV IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Shapes and surface roughness, which are considered as key indicators in understanding Arctic sea-ice, can be measured from the digital surface model (DSM) of the target area.
J.-I. Kim, H.-C. Kim
doaj   +1 more source

Surface roughness signatures of summer arctic snow-covered sea ice in X-band dual-polarimetric SAR

open access: yesGIScience & Remote Sensing, 2020
Surface roughness of sea ice is primary information for understanding sea ice dynamics and air–ice–ocean interactions. Synthetic aperture radar (SAR) is a powerful tool for investigating sea ice surface roughness owing to the high sensitivity of its ...
Hyangsun Han   +8 more
doaj   +1 more source

Evolution of Backscattering Coefficients of Drifting Multi-Year Sea Ice during End of Melting and Onset of Freeze-up in the Western Beaufort Sea

open access: yesRemote Sensing, 2020
Backscattering coefficients of Sentinel-1 synthetic aperture radar (SAR) data of drifting multi-year sea ice in the western Beaufort Sea during the transition period between the end of melting and onset of freeze-up are analyzed, in terms of the ...
Seung Hee Kim   +10 more
doaj   +1 more source

A New Perspective on Four Decades of Changes in Arctic Sea Ice from Satellite Observations

open access: yesRemote Sensing, 2022
Arctic sea ice characteristics have been changing rapidly and significantly in the last few decades. Using a long-term time series of sea ice products from satellite observations—the extended AVHRR Polar Pathfinder (APP-x)—trends in sea ice concentration,
Xuanji Wang   +3 more
doaj   +1 more source

Fractal Analysis and Texture Classification of High-Frequency Multiplicative Noise in SAR Sea-Ice Images Based on a Transform- Domain Image Decomposition Method

open access: yesIEEE Access, 2020
Texture in synthetic aperture radar (SAR) images is a combination of the intrinsic texture of scene backscattering and the texture due to noncoherent high-frequency multiplicative noise (HMN) interactions that reflect erroneous information and lead to ...
Iman Heidarpour Shahrezaei   +1 more
doaj   +1 more source

Abnormal Winter Melting of the Arctic Sea Ice Cap Observed by the Spaceborne Passive Microwave Sensors [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2016
The spatial size and variation of Arctic sea ice play an important role in Earth’s climate system. These are affected by conditions in the polar atmosphere and Arctic sea temperatures.
Seongsuk Lee, Yu Yi
doaj   +1 more source

The potential of sea ice leads as a predictor for summer Arctic sea ice extent [PDF]

open access: yesThe Cryosphere, 2018
The Arctic sea ice extent throughout the melt season is closely associated with initial sea ice state in winter and spring. Sea ice leads are important sites of energy fluxes in the Arctic Ocean, which may play an important role in the evolution of ...
Y. Zhang   +9 more
doaj   +1 more source

Analysis of Spatiotemporal Variations and Influencing Factors of Sea Ice Extent in the Arctic and Antarctic

open access: yesRemote Sensing, 2023
The 44 years (1979–2022) of satellite-derived sea ice extent in the Arctic and Antarctic reveals the details and new trends in the process of polar sea ice coverage changes.
Xiaoyu Sun   +8 more
doaj   +1 more source

The Arctic sea ice cover of 2016: a year of record-low highs and higher-than-expected lows [PDF]

open access: yesThe Cryosphere, 2018
The Arctic sea ice cover of 2016 was highly noteworthy, as it featured record low monthly sea ice extents at the start of the year but a summer (September) extent that was higher than expected by most seasonal forecasts.
A. A. Petty   +10 more
doaj   +1 more source

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