Results 31 to 40 of about 1,324,260 (297)

Field observations on water temperature and stratification in a seasonally ice-covered shallow thermokarst lake

open access: yesShui kexue jinzhan, 2016
In order to better understand the thermodynamic characteristics of seasonally ice-covered shallow lake,the ice freezing and melting processes,water/ice temperature variation,as well as meteorological conditions were measured in a typical thermokarst lake
HUANG Wenfeng   +3 more
doaj   +1 more source

Ice thickness and water level estimation for ice-covered lakes with satellite altimetry waveforms and backscattering coefficients [PDF]

open access: yesThe Cryosphere, 2023
Lake ice, serving as a sensitive indicator of climate change, is an important regulator of regional hydroclimate and lake ecosystems. For ice-covered lakes, traditional satellite altimetry-based water level estimation is often subject to winter anomalies
X. Li   +12 more
doaj   +1 more source

Responses of Lake Ice Phenology to Climate Change at Tibetan Plateau

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Lake ice phenology is a sensitive indicator reflecting global warming. In this article, the long-term changes in lake ice phenology of the second-largest lake at Tibetan Plateau (i.e., the Nam Co) in response to climate change are investigated based on ...
Linan Guo   +6 more
doaj   +1 more source

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

Reconstructing ice-sheet accumulation rates at ridge B, East Antarctica [PDF]

open access: yes, 2004
Understanding how ice sheets responded to past climate change is fundamental to forecasting how they will respond in the future. Numerical models calculating the evolution of ice sheets depend upon accumulation data, which are principally available from ...
Payne, Antony J   +8 more
core   +1 more source

Polarimetric Scattering Model for Methane Bubbles Trapped in the Ice of Sub-Artic Lakes [PDF]

open access: yes, 2012
In this work we propose a model for the polarimetric backscattering of shallow sub-arctic lakes, which are frozen usually up to two meters depth during winter.
Kostas Papathanassiou   +3 more
core   +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  

Microbiology: lessons from a first attempt at Lake Ellsworth [PDF]

open access: yes, 2015
During the attempt to directly access, measure and sample Subglacial Lake Ellsworth in 2012–2013, we conducted microbiological analyses of the drilling equipment, scientific instrumentation, field camp and natural surroundings.
Magiopoulos, Iordanis   +6 more
core   +1 more source

Ice-dammed lateral lake and epishelf lake insights into Holocene dynamics of Marguerite Trough Ice Stream and George VI Ice Shelf, Alexander Island, Antarctic Peninsula

open access: yes, 2017
We present new data regarding the past dynamics of Marguerite Trough Ice Stream, George VI Ice Shelf and valley glaciers from Ablation Point Massif on Alexander Island, Antarctic Peninsula.
John L. Smellie (2843852)
core   +7 more sources

An Investigation of Ice Surface Albedo and Its Influence on the High-Altitude Lakes of the Tibetan Plateau

open access: yesRemote Sensing, 2018
Most high-altitude lakes are more sensitive to global warming than the regional atmosphere. However, most existing climate models produce unrealistic surface temperatures on the Tibetan Plateau (TP) lakes, and few studies have focused on the influence of
Jiahe Lang   +4 more
doaj   +1 more source

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