Results 51 to 60 of about 2,443,175 (254)

Faster Arctic sea ice retreat in CMIP5 than in CMIP3 due to volcanoes [PDF]

open access: yes, 2016
The downward trend in Arctic sea ice extent is one of the most dramatic signals of climate change during recent decades. Comprehensive climate models have struggled to reproduce this, typically simulating a slower rate of sea ice retreat than has been ...
Eisenman, Ian, Rosenblum, Erica
core   +1 more source

Improving Multiyear Sea Ice Concentration Estimates with Sea Ice Drift [PDF]

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). However, factors such as ridging, snow wetness and metamorphism can cause significant changes in brightness temperature ...
Yufang Ye   +3 more
openaire   +3 more sources

An enhancement to sea ice motion and age products at the National Snow and Ice Data Center (NSIDC)

open access: yes, 2020
. A new version of sea ice motion and age products includes several significant upgrades in processing, corrects known issues with the previous version, and updates the time series through 2018, with regular updates planned for the future.
M. Tschudi, W. Meier, J. Stewart
semanticscholar   +1 more source

Arctic amplification is caused by sea-ice loss under increasing CO2

open access: yesNature Communications, 2019
Warming in the Arctic has been much faster than the rest of the world in both observations and model simulations, a phenomenon known as the Arctic amplification (AA) whose cause is still under debate. By analyzing data and model simulations, here we show
A. Dai, D. Luo, M. Song, Jiping Liu
semanticscholar   +2 more sources

Antarctic sea ice over the past 130 000 years – Part 1: a review of what proxy records tell us [PDF]

open access: yesClimate of the Past, 2022
Antarctic sea ice plays a critical role in the Earth system, influencing energy, heat and freshwater fluxes, air–sea gas exchange, ice shelf dynamics, ocean circulation, nutrient cycling, marine productivity and global carbon cycling.
X. Crosta   +37 more
doaj   +1 more source

Assimilation of sea ice motion in a finite‐element sea ice model [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2009
A finite‐element sea ice model (FESIM) is applied in a data assimilation study with the singular evolutive interpolated Kalman (SEIK) filter. The model has been configured for a regional Arctic domain and is forced with a combination of daily NCEP reanalysis data for 2‐m air temperature and 10‐m winds with monthly mean humidities from the ECMWF ...
Rollenhagen, Katja   +4 more
openaire   +4 more sources

Towards a coupled model to investigate wave–sea ice interactions in the Arctic marginal ice zone [PDF]

open access: yesThe Cryosphere, 2020
The Arctic marginal ice zone (MIZ), where strong interactions between sea ice, ocean and atmosphere take place, is expanding as the result of ongoing sea ice retreat.
G. Boutin   +6 more
doaj   +1 more source

Sea ice and methane

open access: yes, 2020
1) The annual cycle of atmospheric methane in southern high latitudes is extremely highly correlated with Antarctic sea ice extent. 2) The annual cycle of atmospheric methane in the Arctic is highly correlated with Antarctic or Arctic plus Antarctic sea ice extent.
Hambler, C, Henderson, PA
openaire   +3 more sources

The ECMWF operational ensemble reanalysis–analysis system for ocean and sea ice: a description of the system and assessment

open access: yesOcean Science (OS), 2019
. The ECMWF OCEAN5 system is a global ocean and sea-ice ensemble of reanalysis and real-time analysis. This paper gives a full description of the OCEAN5 system, with the focus on upgrades of system components with respect to its predecessors, ORAS4 and ...
H. Zuo   +4 more
semanticscholar   +1 more source

A Feasibility Study of Sea Ice Motion and Deformation Measurements Using Multi-Sensor High-Resolution Optical Satellite Images

open access: yesRemote Sensing, 2017
Sea ice motion and deformation have generally been measured using low-resolution passive microwave or mid-resolution radar remote sensing datasets of daily (or few days) intervals to monitor long-term trends over a wide polar area. This feasibility study
Chang-Uk Hyun, Hyun-cheol Kim
doaj   +1 more source

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