Results 41 to 50 of about 15,387,102 (333)

Response of Permafrost Thermal State to Global Climatic Change in Urbanised Landscapes, Yakutsk, Russia

Land, 2022
A study was undertaken to investigate the structure and condition of urban permafrost in the city of Yakutsk. The response of permafrost to recent climate change was assessed for a Shergin Shaft site in a cryogenic landscape.
Viktor V. Kunitsky, Igor I. Syromyatnikov, Andrey V. Litovko   +2 more
doaj   +1 more source

Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard

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, Lin Liu, Sarah Marie Strand, Hanne Hvidtfeldt Christiansen, Tom Rune Lauknes, Yngvar Larsen   +5 more
doaj   +1 more source

Shallow ground temperatures

, 2000
The temperature in the ground changes according to daily or longer temperature cycles in the air. The amount of ground temperature change also diminishes rapidly with depth. Temperatures to a depth of 20 m, the approximate depth to which the yearly temperature cycle penetrates, are presented for various environments in the Mackenzie valley.
M M Burgess, S L Smith
openaire   +1 more source

Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions

Frontiers in Earth Science, 2021
Water accumulation in permafrost regions causes a heavy thermal impact on the frozen layer, thereby leading to its degeneration. First, based on the real heat transfer process, this study proposes relevant hypotheses and governing equations for heat ...
Erxing Peng, Xiaoying Hu, Yu Sheng, Fansheng Zhou, Jichun Wu, Wei Cao   +5 more
doaj   +1 more source

Deep ground temperatures

, 2000
Some 60 holes drilled for hydrocarbon exploration in the Mackenzie valley afford the opportunity to obtain precise measurements of deep permafrost thicknesses (depth to 0°C) and ground temperatures, and are presented here on maps and graphs. Permafrost thickness is less than 100 m in the Mackenzie Delta, and up to 663 m in the adjoining Tuktoyaktuk ...
A E Taylor, M M Burgess, A S Judge, V S Allen   +3 more
openaire   +1 more source

Analysis of ground temperature variations on the basis of years-long measurements [PDF]

Инженерно-строительный журнал, 2017
The article deals with results of the analysis of years-long measurements of the ground temperatures, for example: Russia, Moscow. Data are given on variations of the ground temperatures in the course of a year, at a 10-days interval, in two plots of ...
G.P. Vasilyev, V.F. Gornov, P.I. Konstantinov, M.V. Kolesova, I.A. Korneva   +4 more
doaj   +1 more source

Hourly Simulation of an Earth-to-Air Heat Exchanger in a Low-Energy Residential Building

Energies, 2022
The earth-to-air heat exchanger (EAHE) is a well-founded and verified solution used in modern buildings both for heating and cooling purposes around the world.
Piotr Michalak
doaj   +1 more source

Ground temperature estimations for Bolu, Turkey

Environmental Monitoring and Assessment, 2011
The approximation of the soil temperature profile may be considered for many energy, environmental, and agriculture applications. In this study, temperature approximation model of ground in Bolu is developed. Unsteady state one-dimensional semi-infinite solid model is used to calculate temperature variation in ground.
Çamdalı, Ünal, Tunç, Murat
openaire   +3 more sources

Thermo-hydraulic analysis of desiccation cracked soil strata considering ground temperature and moisture dynamics under the influence of soil-atmosphere interactions

Geomechanics for Energy and the Environment
4 Global warming and climate change significantly affect ground temperature and flow patterns. 5 Moreover, areas prone to cracking experience intensified temperature and moisture variations.
Milad Jabbarzadeh, Hamed Sadeghi, S. Tourchi, Ali Golaghaei Darzi   +3 more
semanticscholar   +1 more source

Numerical study on thermal regimes beneath canal in permafrost zones with different geological conditions

Shuili Shuiyun Gongcheng Xuebao, 2022
In permafrost regions, construction and operation of hydraulic projects will exert considerable thermal impact on underlying permafrost, and its degree will be different at locations with different permafrost geological conditions.
HAN Hongwu, MU Yanhu, YU Hong, DING Zekun, CHEN Ling   +4 more
doaj   +1 more source