Results 31 to 40 of about 154,444 (264)

Enhancing sea ice knowledge through assimilation of sea ice thickness from ENVISAT and CS2SMOS [PDF]

The Cryosphere
Arctic sea ice extent has declined significantly over the past four decades, opening up the Arctic to shipping and resource extraction while also impacting wildlife and local communities.
N. Williams, Y. Wang, F. Counillon, F. Counillon   +3 more
doaj   +1 more source

Ice thickness, volume and subglacial relief of Djankuat Glacier (Central Caucasus)

Лëд и снег, 2015
In this paper we present and discuss results of radio-echo sounding and modelling of ice thickness of the Djankuat Glacier. This glacier is the reference one for the Central Caucasus and was earlier studied comprehensively, but direct ice thickness ...
I. I. Lavrentiev, S. S. Kutuzov, D. A. Petrakov, G. A. Popov, V. V. Popovnin   +4 more
doaj   +1 more source

Slope estimation influences on ice thickness inversion models: a case study for Monte Tronador glaciers, North Patagonian Andes

Journal of Glaciology, 2020
Glacier ice thickness is crucial to quantifying water resources in mountain regions, and is an essential input for ice-flow models. Using a surface velocity inversion method, we combine ice thickness measurements with detailed surface elevation and ...
Valentina Zorzut, Lucas Ruiz, Andres Rivera, Pierre Pitte, Ricardo Villalba, Dorota Medrzycka   +5 more
doaj   +1 more source

A Bayesian ice thickness estimation model for large-scale applications

Journal of Glaciology, 2020
Accurate estimations of ice thickness and volume are indispensable for ice flow modelling, hydrological forecasts and sea-level rise projections. We present a new ice thickness estimation model based on a mass-conserving forward model and a Bayesian ...
Mauro A. Werder, Matthias Huss, Frank Paul, Amaury Dehecq, Daniel Farinotti   +4 more
doaj   +1 more source

A comparison of contemporaneous airborne altimetry and ice-thickness measurements of Antarctic ice shelves

Journal of Glaciology, 2023
Estimates of ice shelf mass loss are typically based on surface height measurements, assuming hydrostatic equilibrium and estimated firn thickness.
Allison M. Chartrand, Ian M. Howat
doaj   +1 more source

Estimating ice discharge of the Antarctic Peninsula using different ice-thickness datasets

Annals of Glaciology, 2023
The Antarctic Peninsula Ice Sheet (APIS) has become a significant contributor to sea-level rise over recent decades. Accurately estimating the ice discharge from the outlet glaciers of the APIS is crucial to quantify the mass balance of the Antarctic ...
Kaian Shahateet, Francisco Navarro, Thorsten Seehaus, Johannes J. Fürst, Matthias Braun   +4 more
doaj   +1 more source

Ship-based television complex – the program for automatic sea ice thickness monitoring

Российская Арктика, 2018
The paper presents a short review of modern technologies for sea ice thickness measuring, the experience of operation with ship-based television complex (STK), and the program for automatic sea ice thickness monitoring system STK-K.
Serovetnikov S.S., Frolov S.V., Klein A.E.   +2 more
doaj   +1 more source

Analysis of the Variability and Influencing Factors of Ice Thickness during the Ablation Period in Qinghai Lake Using the GPR Ice Monitoring System

Remote Sensing, 2022
As a reliable indicator of regional climate change, the growth and decline of lake ice thickness affect the regional intra–annual heat and energy balance. In this study, a ground-penetrating radar (GPR) ice monitoring system, located approximately 1.7 km
Qixin Wei, Xiaojun Yao, Hongfang Zhang, Hongyu Duan, Huian Jin, Jie Chen, Juan Cao   +6 more
doaj   +1 more source

Sea-ice thickness measurement based on the dispersion of ice swell

The Journal of the Acoustical Society of America, 2012
The dispersion of flexural waves propagating in the Arctic sea ice cover is exploited in order to locally measure the ice thickness. The observed dispersion, for waves filtered in the 4–20 s period interval, at up to 4 broad-band seismometers deployed in Spring 2007 near the North Pole, is compared to a parameterized model that accounts for a complex ...
Marsan, David, Weiss, Jérôme, Larose, Eric, Métaxian, Jean-Philippe   +3 more
openaire   +5 more sources

Nutrient/TOR signaling controls adipose mitochondrial transcription factor A (TFAM) to regulate organismal growth in Drosophila

FEBS Letters, EarlyView.
Animals must match their growth rate to available nutrients. We show that in Drosophila larvae, the nutrient‐sensing TOR kinase controls growth by regulating levels of TFAM, a key regulator of mitochondrial function, in the adipose tissue. When nutrients are abundant, high TOR activity suppresses TFAM, lowering mitochondrial bioenergetic activity and ...
Shrivani Sriskanthadevan‐Pirahas, Shahoon Khan, Abhishek Sharma, Byoungchun Lee, Savraj S. Grewal   +4 more
wiley   +1 more source