Results 51 to 60 of about 336,668 (362)

Respective impacts of Arctic sea ice decline and increasing greenhouse gases concentration on Sahel precipitation [PDF]

, 2019
The impact of climate change on Sahel precipitation is uncertain and has to be widely documented. Recently, it has been shown that Arctic sea ice loss leverages the global warming effects worldwide, suggesting a potential impact of Arctic sea ice decline
A Kitoh, A Seth, A Voldoire, AR Stine, AT Evan, B Fontaine, B Luo, B Pu, C Deser, C Deser, C Lavaysse, C Lavaysse, CB Skinner, CD Thorncroft, CD Thorncroft, D Luo, D Salas Mélia, DM Smith, DP Rowell, E Hawkins, E Mohino, E Sanchez-Gomez, Emilia Sanchez-Gomez, ER Martin, F Massonnet, G Magnusdottir, G Wang, HT Hewitt, I Polo, I Simmonds, J Noilhan, J Noilhan, J Villamayor, J-Y Lee, JA Screen, JA Screen, JC Stroeve, JCH Chiang, JG Dwyer, JG Dwyer, JP Grist, JR Knight, KE McCusker, KE Taylor, KE Trenberth, KE Trenberth, KH Cook, LM Druyan, M Biasutti, M Biasutti, M Gaetani, M Ting, MC Serreze, ME Mann, ME Mann, MI Lélé, P Peyrillé, P-A Monerie, P-A Monerie, P-A Monerie, P-A Monerie, Paul-Arthur Monerie, R Blackport, R James, R Roehrig, R Seager, R Zhang, RJ Haarsma, S Talento, SE Nicholson, SM Kang, Thomas Oudar, Y Liu, Y Peings   +73 more
core   +1 more source

Machine Learning-Based Image Processing for Ice Concentration during Chukchi and Beaufort Sea Trials

Journal of Marine Science and Engineering, 2023
Growing interest in finding the optimal route through the arctic ocean, and sea ice concentration is also emerging as a factor to be considered. In this paper, an algorithm to calculate the sea ice concentration was developed based on the images taken ...
Huichan Kim, Sunho Park, Seong-Yeob Jeong   +2 more
doaj   +1 more source

On sea ice concentration anomaly coherence in the southern Beaufort Sea [PDF]

Geophysical Research Letters, 2005
The circumpolar flaw lead polynya system is a region of enhanced biological productivity and for significant portions of the annual cycle, dominates the exchange of energy and mass across the ocean‐sea ice‐atmosphere (OSA) interface. We investigate the nature of sea ice concentration (SIC) anomalies for spatial and temporal statistical persistence ...
Jennifer V. Lukovich, David G. Barber
openaire   +1 more source

Classifying the Ice Seasons 1982-2016 Using the Weighted Ice Days Number as a New Winter Severity Characteristic [PDF]

, 2017
Sea ice is a key climate factor and it restricts considerably the winter navigation in severe seasons on the Baltic Sea. So determining ice conditions severity and describing ice cover behavior at severe seasons are necessary.
Alari, V. (Victor), Pärn, O. (Ove), Rjazin, J. (Jevgeni)   +2 more
core   +2 more sources

The Identification of Ice Floes and Calculation of Sea Ice Concentration Based on a Deep Learning Method

Remote Sensing, 2023
When navigating ships in cold regions, sea ice concentration plays a crucial role in determining a ship’s navigability. However, automatically extracting the sea ice concentration and floe size distribution remains challenging, due to the difficulty in ...
Li Zhou, Jinyan Cai, Shifeng Ding
doaj   +1 more source

Assimilation of sea-ice concentration in a global climate model — physical and statistical aspects [PDF]

, 2012
We investigate the initialisation of Northern Hemisphere sea ice in the global climate model ECHAM5/MPI-OM by assimilating sea-ice concentration data. The analysis updates for concentration are given by Newtonian relaxation, and we discuss different ways
Jungclaus, J. H., Marotzke, J., Notz, D., Tietsche, S.   +3 more
core   +2 more sources

A computational fluid dynamics model for the small-scale dynamics of wave, ice floe and interstitial grease ice interaction [PDF]

arXiv, 2021
The marginal ice zone is a highly dynamical region where sea ice and ocean waves interact. Large-scale sea ice models only compute domain-averaged responses. As the majority of the marginal ice zone consists of mobile ice floes surrounded by grease ice, finer-scale modelling is needed to resolve variations of its mechanical properties, wave-induced ...
arxiv  

Hierarchical Information-sharing Convolutional Neural Network for the Prediction of Arctic Sea Ice Concentration and Velocity [PDF]

, 2023
Forecasting sea ice concentration (SIC) and sea ice velocity (SIV) in the Arctic Ocean is of great significance as the Arctic environment has been changed by the recent warming climate. Given that physical sea ice models require high computational costs with complex parameterization, deep learning techniques can effectively replace the physical model ...
arxiv   +1 more source

Analysis of the Spatial and Temporal Variation of Sea Ice and Connectivity in the NEP of the Arctic in Summer in Hot Years

Journal of Marine Science and Engineering, 2021
Climate warming has enabled the Arctic region to achieve seasonal navigation, and sea ice concentration is an important factor affecting the navigation of the Arctic waterways.
Guochong Liu, Min Ji, Fengxiang Jin, Ying Li, Yawen He, Ting Li   +5 more
doaj   +1 more source

Simulated Geophysical Noise in Sea Ice Concentration Estimates of Open Water and Snow-Covered Sea Ice

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Sea ice concentration algorithms using brightness temperatures ($T_{B}$) from satellite microwave radiometers are used to compute sea ice concentration ($c_{\text{ice}}$), sea ice extent, and generate sea ice climate data records. Therefore, it is important to minimize the sensitivity of $c_{\text{ice}}$ estimates to geophysical noise caused by snow ...
Rasmus T. Tonboe, Vishnu Nandan, Marko Makynen, Leif Toudal Pedersen, Stefan Kern, Thomas Lavergne, Johanne Oelund, Gorm Dybkjaer, Roberto Saldo, Marcus Huntemann   +9 more
openaire   +3 more sources