Results 21 to 30 of about 5,429,053 (296)
The flow structure behind vortex generators embedded in a decelerating turbulent boundary layer [PDF]
, 2009 The objective of the present work is to analyse the behaviour of a turbulent decelerating boundary layer under the effect of both passive and active jets vortex generators (VGs).
Braud, Caroline +3 more
core +1 more source
Remote Sensing, 2022 The freeze–thaw (F-T) cycle of the active layer (AL) causes the “frost heave and thaw settlement” deformation of the terrain surface. Accurately identifying its amplitude and time characteristics is important for climate, hydrology, and ecology research ...
Huayun Zhou +14 more
doaj +1 more source
Remote Sensing, 2022 Most methane (CH4) and carbon dioxide (CO2) emissions originate from the biodegradation of organic matter of soils and of degrading permafrost in the Arctic.
Gleb Kraev +6 more
doaj +1 more source
, 2022 This dataset contains Permafrost active layer depths taken in September 2021 at 28 locations on Tuktoyaktuk Island (Beaufort Sea) as well as next to a small thermokarst lake (“Lake 3”) between the villages of Tuktoyaktuk and Inuvik, Northwest Territories,
Boike, Julia +2 more
core +1 more source
High-resolution electrical resistivity tomography applied to patterned ground, Wedel Jarlsberg Land, south-west Spitsbergen [PDF]
Polar Research, 2015 This article presents results of two-dimensional electrical resistivity tomography (ERT) applied to three types of patterned ground in Wedel-Jarlsberg Land (Svalbard), carried out in late July 2012. The structures investigated include sorted circles, non-
Marek Kasprzak
doaj +1 more source
Tuning Technique for Active FSS Arrays [PDF]
, 2009 A novel biasing technique is described for active frequency selective slot arrays. The bandpass response can be switched between transmitting and reflecting modes, or tuned over a predetermined frequency range using two different biasing circuit ...
Parker, Edward A. +3 more
core +1 more source
Energies, 2013 The need for clean, inexpensive and renewable energy has increasingly turned research attention towards polymer photovoltaic cells. However, the performance efficiency of these devices is still low in comparison with silicon-based devices.
Abdulra'uf Lukman Bola +3 more
doaj +1 more source
Cuadernos de Investigación Geográfica, 2020 Between 2008 and 2016 the Morenas Coloradas rock glacier in the Central Andes of Mendoza showed different thermal characteristics at three monitoring sites in active layers, Balcón I (3560 m a.s.l.), Balcón I Superior (3590 m a.s.l.) and Balcón II (3770 ...
D. Trombotto-Liaudat, E. Bottegal
doaj +1 more source
Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia
Land, 2021 Climate change effects, such as melting of glaciers and sea ice in response to rising temperatures, may lead to an increase in global water availability and thus in precipitation.
Aleksandr Zhirkov +3 more
doaj +1 more source
Remote Sensing, 2021 In permafrost areas, the active layer undergoes seasonal frost heave and thaw subsidence caused by ice formation and melting. The amplitude and timing of the ground displacement cycles depend on the climatic and ground conditions. Here we used Sentinel-1
Line Rouyet +5 more
doaj +1 more source