Results 31 to 40 of about 560,842 (308)

Shrinking sea ice, increasing snowfall and thinning lake ice: a complex Arctic linkage explained [PDF]

open access: yes, 2016
The dramatic shrinkage of Arctic sea ice is one of the starkest symptoms of global warming, with potentially severe and far-reaching impacts on arctic marine and terrestrial ecology (Post et al 2013 Science 341 519–24) and northern hemisphere climate ...
Brock, Benjamin
core   +1 more source

The backscattering characteristics of thermokarst lake ice in the qinghai-tibet plateau from SAR [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
A thermokarst lake is an important indicator of changes in climate, which cause considerable thermal distribution to the surrounding permafrost. The imaging radar has demonstrated the capability to determine when and which lakes freeze or do not freeze ...
Z. Li, B. Tian, P. Tang
doaj   +1 more source

Mapping snow depth on Canadian sub-arctic lakes using ground-penetrating radar [PDF]

open access: yesThe Cryosphere, 2023
Ice thickness across lake ice is mainly influenced by the presence of snow and its distribution, which affects the rate of lake ice growth. The distribution of snow depth over lake ice varies due to wind redistribution and snowpack metamorphism ...
A. F. Pouw   +5 more
doaj   +1 more source

Interaction between ice sheet dynamics and subglacial lake circulation: a coupled modelling approach [PDF]

open access: yesThe Cryosphere, 2010
Subglacial lakes in Antarctica influence to a large extent the flow of the ice sheet. In this study we use an idealised lake geometry to study this impact. We employ a) an improved three-dimensional full-Stokes ice flow model with a nonlinear rheology, b)
M. Thoma   +3 more
doaj  

Nonlinear temperature response of lake ice breakup [PDF]

open access: yes, 2004
A uniquely comprehensive set of four decades of ice breakup data from 196 Swedish lakes covering 13degrees of latitude (55.7degrees N to 68.4degrees N) shows the relationship between the timing of lake ice breakup and air temperature to be an arc cosine ...
Livingstone, David M.   +2 more
core   +1 more source

Lake Ice Investigation at Peters Lake, Alaska [PDF]

open access: yesJournal of Glaciology, 1963
AbstractIn this paper a study of lake ice at Peters Lake with respect to crystallographic nature and impurity in crystal grain boundaries is described. The appearance of the ice structure in 1962 was quite uniform over the whole area of the lake; it showed predominantly horizontal c-axes. Another type of ice with predominantly vertical c-axes could not
Jiro Muguruma, Katsuhiro Kikuchi
openaire   +1 more source

Source of Lake Vostok Cations Constrained with Strontium Isotopes [PDF]

open access: yes, 2016
Lake Vostok is the largest sub-glacial lake in Antarctica. The primary source of our current knowledge regarding the geochemistry and biology of the lake comes from the analysis of refrozen lake water associated with ice core drilling. Several sources of
George Royston-Bishop   +4 more
core   +3 more sources

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

Simulating lake ice phenology using a coupled atmosphere–lake model at Nam Co, a typical deep alpine lake on the Tibetan Plateau [PDF]

open access: yesThe Cryosphere
Simulating the ice phenology of deep alpine lakes is important and challenging in coupled atmosphere–lake models. In this study, the Weather Research and Forecasting (WRF) model, coupled with two lake models, the freshwater lake (WRF–FLake) model and the
X. Zhou, B. Wang, X. Ma, Z. La, K. Yang
doaj   +1 more source

Optical Properties of Deep Ice at the South Pole - Absorption [PDF]

open access: yes, 1997
We discuss recent measurements of the wavelength-dependent absorption coefficients in deep South Pole ice. The method uses transit time distributions of pulses from a variable-frequency laser sent between emitters and receivers embedded in the ice.
AMANDA Collaboration   +36 more
core   +2 more sources

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