Results 31 to 40 of about 161,658 (309)

Arctic sea-ice variability revisited [PDF]

Annals of Glaciology, 2008
AbstractThis paper explores spatial and temporal relationships between variations in Arctic sea-ice concentration (summer and winter) and near-surface atmospheric temperature and atmospheric pressure using multivariate statistical techniques. Trend, empirical orthogonal function (EOF) and singular value decomposition (SVD) analyses are used to identify
Julienne Stroeve, Allan Frei, James McCreight, Debjani Ghatak   +3 more
openaire   +1 more source

The tipping times in an Arctic sea ice system under influence of extreme events

, 2020
In light of the rapid recent retreat of Arctic sea ice, the extreme weather events triggering the variability in Arctic ice cover has drawn increasing attention.
Duan, Jinqiao, Fu, Ling, Wiggins, Stephen, Yang, Fang, Zheng, Yayun   +4 more
core   +1 more source

Taking stock of arctic sea ice and climate [PDF]

, 2009
The relationship among the cause-and-effect of the Arctic atmosphere, sea ice, and ocean is discussed. The increased vulnerability of the Arctic system to anomalous atmospheric forcing can be argued from the perspective that recent ice loss is the result
Francis, Jennifer, Hamilton, Lawrence C., Proshutinsky, Audrey, Timmermans, Mary-Louise   +3 more
core   +2 more sources

Resolutional Analysis of Multiplicative High-Frequency Speckle Noise Based on SAR Spatial De-Speckling Filter Implementation and Selection

Remote Sensing, 2019
Due to the inherent characteristics of the electromagnetic wave scattering phenomenon, synthetic aperture radar (SAR) images are directly degraded by high-frequency multiplicative speckle (HMS) noise, which makes image de-speckling filter application and
Iman Heidarpour Shahrezaei, Hyun-cheol Kim   +1 more
doaj   +1 more source

Formation and propagation of great salinity anomalies [PDF]

, 2003
North Atlantic/Arctic ocean and sea ice variability for the period 1948–2001 is studied using a global Ocean General Circulation Model coupled to a dynamic/thermodynamic sea ice model forced by daily NCEP/NCAR reanalysis data [Kalnay et al., 1996 ...
Aagaard, Belkin, Curry, Deser, Dickson, Dickson, H. Haak, Hibler, Hilmer, Houghton, Häkkinen, Häkkinen, Kalnay, Köberle, Lazier, Levitus, Marsland, Vinje, Vinje   +18 more
core   +1 more source

Probabilistic Forecasts of Arctic Sea Ice Thickness [PDF]

Journal of Agricultural, Biological and Environmental Statistics, 2021
AbstractIn recent decades, warming temperatures have caused sharp reductions in the volume of sea ice in the Arctic Ocean. Predicting changes in Arctic sea ice thickness is vital in a changing Arctic for making decisions about shipping and resource management in the region.
Peter A. Gao, Hannah M. Director, Cecilia M. Bitz, Adrian E. Raftery   +3 more
openaire   +2 more sources

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

Remote 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

Optimization of the k-nearest-neighbors model for summer Arctic Sea ice prediction

Frontiers in Marine Science, 2023
The Arctic sea ice plays a significant role in climate-related processes and has a considerable effect on humans, however accurately predicting the Arctic sea ice concentration is still challenging.
Yongcheng Lin, Qinghua Yang, Xuewei Li, Xuewei Li, Chao-Yuan Yang, Yiguo Wang, Jiuke Wang, Jingwen Liu, Sizhe Chen, Jiping Liu   +9 more
doaj   +1 more source

Indigenous self-determination in cryospheric science: The Inuit-led Sikumik Qaujimajjuti (“tools to know how the ice is”) program in Inuit Nunangat, Canada

Frontiers in Earth Science, 2023
Inuit have lived along the shoreline of the frozen Arctic Ocean for centuries. Our wellbeing, culture, and identity are closely tied to safe and dependable ice access.
L. Beaulieu, A. Arreak, R. Holwell, S. Dicker, O. Qamanirq, L. Moorman, L. Moorman, K. Wilson, R. Segal, S. Crichton, T. Bell, T. Bell   +11 more
doaj   +1 more source

The impact of Arctic sea ice on the Arctic energy budget and on the climate of the Northern mid-latitudes [PDF]

, 2012
The atmospheric general circulation model EC-EARTH-IFS has been applied to investigate the influence of both a reduced and a removed Arctic sea ice cover on the Arctic energy budget and on the climate of the Northern mid-latitudes.
McGrath, R., Semmler, T., Wang, S.
core   +1 more source