Results 11 to 20 of about 2,565,243 (371)

Seasonal Arctic sea ice forecasting with probabilistic deep learning

open access: yesNature Communications, 2021
Anthropogenic warming has led to an unprecedented year-round reduction in Arctic sea ice extent. This has far-reaching consequences for indigenous and local communities, polar ecosystems, and global climate, motivating the need for accurate seasonal sea ...
Tom R. Andersson   +16 more
semanticscholar   +1 more source

Satellite-based sea ice thickness changes in the Laptev Sea from 2002 to 2017: comparison to mooring observations [PDF]

open access: yesThe Cryosphere, 2020
The gridded sea ice thickness (SIT) climate data record (CDR) produced by the European Space Agency (ESA) Sea Ice Climate Change Initiative Phase 2 (CCI-2) is the longest available, Arctic-wide SIT record covering the period from 2002 to 2017.
H. J. Belter   +6 more
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

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

New insights into radiative transfer within sea ice derived from autonomous optical propagation measurements [PDF]

open access: yesThe Cryosphere, 2021
The radiative transfer of shortwave solar radiation through the sea ice cover of the polar oceans is a crucial aspect of energy partitioning at the atmosphere–ice–ocean interface.
C. Katlein   +4 more
doaj   +1 more source

MOSAICKING VERY-HIGH-RESOLUTION HELICOPTER-BORNE IMAGES ACQUIRED OVER DRIFTING ARCTIC SEA ICE USING COTS SENSORS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
In order to observe and record conditions of the sea ice efficiently and specifically during in-situ investigation with the support of icebreaker research vessel (IBRV), the very-high-resolution (VHR) imaging systems have been used in recent past.
C. U. Hyun, H. C. Kim
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

Retrieval and parameterisation of sea-ice bulk density from airborne multi-sensor measurements [PDF]

open access: yesThe Cryosphere, 2022
Knowledge of sea-ice thickness and volume depends on freeboard observations from satellite altimeters and in turn on information of snow mass and sea-ice density required for the freeboard-to-thickness conversion.
A. Jutila   +7 more
doaj   +1 more source

Tracer Measurements in Growing Sea Ice Support Convective Gravity Drainage Parameterizations [PDF]

open access: yes, 2020
Gravity drainage is the dominant process redistributing solutes in growing sea ice. Modeling gravity drainage is therefore necessary to predict physical and biogeochemical variables in sea ice.
Bakker, D. C. E.   +6 more
core   +3 more sources

Arctic Sea Ice in CMIP6

open access: yesGeophysical Research Letters, 2020
We 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.
D. Notz, Simip Community
semanticscholar   +1 more source

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