Results 1 to 10 of about 162,083 (309)

The early twentieth century warming and winter Arctic sea ice [PDF]

open access: yesThe Cryosphere, 2012
The Arctic has featured the strongest surface warming over the globe during the recent decades, and the temperature increase has been accompanied by a rapid decline in sea ice extent.
V. A. Semenov, M. Latif
doaj   +4 more sources

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

Arctic Sea Ice in CMIP6 [PDF]

open access: yesGeophysical Research Letters, 2020
AbstractWe examine CMIP6 simulations of Arctic sea‐ice area and volume. We find that CMIP6 models produce a wide spread of mean Arctic sea‐ice area, capturing the observational estimate within the multimodel ensemble spread. The CMIP6 multimodel ensemble mean provides a more realistic estimate of the sensitivity of September Arctic sea‐ice area to a ...
Notz, Dirk   +29 more
openaire   +8 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

Observing Arctic Sea Ice

open access: yesOceanography, 2022
Our understanding of Arctic sea ice and its wide-ranging influence is deeply rooted in observation. Advancing technologies have profoundly improved our ability to observe Arctic sea ice, document its processes and properties, and describe atmosphere-ice-ocean interactions with unprecedented detail.
Melinda Webster   +2 more
openaire   +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

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

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

Home - About - Disclaimer - Privacy