Results 91 to 100 of about 453,303 (276)

Sea-ice evaluation of NEMO-Nordic 1.0: a NEMO–LIM3.6-based ocean–sea-ice model setup for the North Sea and Baltic Sea [PDF]

Geoscientific Model Development, 2017
The Baltic Sea is a seasonally ice-covered marginal sea in northern Europe with intense wintertime ship traffic and a sensitive ecosystem. Understanding and modeling the evolution of the sea-ice pack is important for climate effect studies and ...
P. Pemberton, U. Löptien, R. Hordoir, A. Höglund, S. Schimanke, L. Axell, J. Haapala   +6 more
doaj   +1 more source

Ecosystem model intercomparison of under-ice and total primary production in the Arctic Ocean [PDF]

, 2016
Previous observational studies have found increasing primary production (PP) in response to declining sea ice cover in the Arctic Ocean. In this study, under-ice PP was assessed based on three coupled ice-ocean-ecosystem models participating in the Forum
Ji, Rubao, Jin, Meibing, Lee, Younjoo J., Pendleton, Daniel, Popova, Ekaterina E., Varpe, Øystein, Yool, Andrew, Zhang, Jinlun   +7 more
core   +2 more sources

Possible Lagged Impact of the Arctic Sea Ice in Barents–Kara Seas on June Precipitation in Eastern China

Frontiers in Earth Science, 2022
Based on the Hadley Centre sea ice concentration, the ERA5 reanalysis, and three precipitation datasets, the possible lagged impact of the Barents–Kara sea ice on June rainfall across China is investigated.
Huidi Yang, Huidi Yang, Jian Rao, Jian Rao, Haishan Chen, Haishan Chen   +5 more
doaj   +1 more source

Sea Ice Concentration Estimation during Freeze-Up from SAR Imagery Using a Convolutional Neural Network

Remote Sensing, 2017
In this study, a convolutional neural network (CNN) is used to estimate sea ice concentration using synthetic aperture radar (SAR) scenes acquired during freeze-up in the Gulf of St. Lawrence on the east coast of Canada.
Lei Wang, K. A. Scott, David A Clausi
semanticscholar   +1 more source

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

Remote 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, Yinghui Liu, Jeffrey R. Key, Richard Dworak   +3 more
doaj   +1 more source

EOF analysis of three records of sea-ice concentration spanning the last 30 years [PDF]

, 2003
Several continuous observational datasets of Artic sea-ice concentration are currently available that cover the period since the advent of routine satellite observations. We report on a comparison of three sea-ice concentration datasets.
Comiso, Johannessen, Jonathan L. Bamber, Joy S. Singarayer, Markus, Maykut, Meier, Parkinson, Rigor   +8 more
core   +1 more source

¹⁸O Concentrations In Sea Ice Of The Weddell Sea, Antarctica [PDF]

Journal of Glaciology, 1990
AbstractWe present data on ice texture, salinity, and δ18O obtained from identical sections of ice cores during the Winter Weddell Sea Project 1986 on RV Polarstern from July through August 1986, in the longitude range between 5°W. and 7°E. We find no uniquely definable relationship between δ18O values and ice texture in a particular section.
S. F. Ackley, Gerhard Dieckmann, P. Schlosser, Manfred A. Lange, Peter Wadhams   +4 more
openaire   +1 more source

Assessment of Antarctic Sea Ice Cover in CMIP6 Prediction with Comparison to AMSR2 during 2015–2021

Remote Sensing, 2023
A comprehensive assessment of Antarctic sea ice cover prediction is conducted for twelve CMIP6 models under the scenario of SSP2-4.5, with a comparison to the observed data from the Advanced Microwave Scanning Radiometer 2 (AMSR2) during 2015–2021.
Siqi Li, Yu Zhang, Changsheng Chen, Yiran Zhang, Danya Xu, Song Hu   +5 more
doaj   +1 more source

Holocene carbon-cycle dynamics based on CO2 trapped in ice at Taylor Dome, Antarctica [PDF]

, 1999
A high-resolution ice-core record of atmospheric CO2 concentration over the Holocene epoch shows that the global carbon cycle has not been in steady state during the past 11,000 years.
Blunier, T., Deck, B., Fischer, Hubertus, Indermühle, A., Joos, F., Mastroianni, D., Meyer, R., Smith, J., Stauffer, B., Stocker, T. F., Tschumi, J., Wahlen, M.   +11 more
core   +1 more source

Evaluation of the ArcIOPS sea ice forecasts during 2021–2023

Frontiers in Earth Science
The operational sea ice forecasts from the Arctic Ice Ocean Prediction System (ArcIOPS) during 2021–2023 are validated against satellite-retrieved sea ice concentration and drift data, in situ and reanalyzed sea ice thickness data.
Xi Liang, Zhongxiang Tian, Fu Zhao, Ming Li, Na Liu, Chunhua Li   +5 more
doaj   +1 more source