Results 1 to 10 of about 842,246 (141)

Arctic sea ice cover data from spaceborne synthetic aperture radar by deep learning [PDF]

open access: yesEarth System Science Data, 2021
Widely used sea ice concentration and sea ice cover in polar regions are derived mainly from spaceborne microwave radiometer and scatterometer data, and the typical spatial resolution of these products ranges from several to dozens of kilometers.
Y.-R. Wang, X.-M. Li
doaj   +1 more source

Analyzing links between simulated Laptev Sea sea ice and atmospheric conditions over adjoining landmasses using causal-effect networks [PDF]

open access: yesThe Cryosphere, 2020
We investigate how sea ice interacts with the atmosphere over adjacent landmasses in the Laptev Sea region as a step towards a better understanding of the connection between sea ice and permafrost.
Z. Rehder   +6 more
doaj   +1 more source

The Influence of Snow and Ice Albedo towards Improved Lake Ice Simulations

open access: yesHydrology, 2021
Lake ice models are a vital tool for studying the response of ice-covered lakes to changing climates throughout the world. The Canadian Lake Ice Model (CLIMo) is a one-dimensional freshwater ice cover model that simulates Arctic and sub-Arctic lake ice ...
Alexis L. Robinson   +2 more
doaj   +1 more source

The fate of lake ice in the North American Arctic [PDF]

open access: yesThe Cryosphere, 2011
Lakes comprise a large portion of the surface cover in northern North America, forming an important part of the cryosphere. The timing of lake ice phenological events (e.g.
L. C. Brown, C. R. Duguay
doaj   +1 more source

Ambient noise under stably covered ice [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2021
Sea ice and freshwater ice can be different in terms of physical and acoustic characteristics, such as density, salinity, etc. In this paper, under-ice ambient noise in the Mudan river (Jilin Province, Northeast of China) is analyzed using the data recorded by autonomous hydrophones to test if the river ice environment is an effective analog for ...
Xueli, Sheng   +3 more
openaire   +2 more sources

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

open access: yes, 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)   +2 more
core   +2 more sources

Internal waves under an ice cover [PDF]

open access: yesDoklady Earth Sciences, 2008
A theoretical model for propagation of internal waves under an ice cover is developed. The sea water is considered to be inviscid, non-rotating, and incompressible and the Brunt–Väisälä frequency is supposed to be constant. The ice is considered of uniform thickness, with constant values of Young's modulus, Poisson's ratio, density and compressive ...
openaire   +2 more sources

Less winter cloud aids summer 2013 Arctic sea ice return from 2012 minimum

open access: yesEnvironmental Research Letters, 2014
In September 2012, Arctic sea ice cover reached a record minimum for the satellite era. The following winter the sea ice quickly returned, carrying through to the summer when ice extent was 48% greater than the same time in 2012.
Yinghui Liu, Jeffrey R Key
doaj   +1 more source

Assessment of the impact of dam reservoirs on river ice cover – an example from the Carpathians (central Europe) [PDF]

open access: yesThe Cryosphere
This paper presents a method for determining the impact of dam reservoirs on the ice cover of rivers downstream of their locations based on a long measurement period (1950–2020) and synthetic-aperture radar (SAR) data.
M. Fukś
doaj   +1 more source

The impact of Arctic sea ice loss on mid-Holocene climate. [PDF]

open access: yes, 2018
Mid-Holocene climate was characterized by strong summer solar heating that decreased Arctic sea ice cover. Motivated by recent studies identifying Arctic sea ice loss as a key driver of future climate change, we separate the influences of Arctic sea ice ...
Kim, Seo-Yeon   +5 more
core   +2 more sources

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