搜索结果: 1-15 共查到“知识库 permafrost”相关记录23条 . 查询时间(0.042 秒)
Vegetation Mapping in the Permafrost Region: A Case Study on the Central Qinghai-Tibet Plateau
vegetation mapping alpine swamp meadow random forest permafrost region Qinghai-Tibet Plateau
2023/12/4
An accurate and detailed vegetation map is of crucial significance for understanding the spatial heterogeneity of subsurfaces, which can help to characterize the thermal state of permafrost. The absen...
UAV PHOTOGRAMMETRY FOR MAPPING AND MONITORING OF NORTHERN PERMAFROST LANDSCAPES
Unmanned Aerial Vehicles UAVs Mapping Arctic Disturbance Permafrost Structure from motion
2015/9/10
Northern environments are changing in response to recent climate warming, resource development, and natural disturbances. The Arctic climate has warmed by 2–3°C since the 1950’s, causing a range of cr...
Using field observations to inform thermal hydrology models of permafrost dynamics with ATS (v0.83)
thermal hydrology models permafrost dynamics ATS
2015/9/10
Climate change is profoundly transforming the carbon-rich Arctic tundra landscape, potentially moving it from a carbon sink to a carbon source by increasing the thickness of soil that thaws on a seaso...
HIGH TEMPORAL RESOLUTION PERMAFROST MONITORING USING A MULTIPLE STACK INSAR TECHNIQUE
InSAR Permafrost Infrastructure Monitoring
2015/5/7
The combined effect of climate change and accelerated economic development in Northern regions increases the threat of permafrost related surface deformation to buildings and transportation infrastr...
Degradation of buried ice and permafrost in the Veleta cirque (Sierra Nevada, Spain) from 2006 to 2013 as a response to recent climate trends
Veleta cirque du soleil the sierra Nevada mountains national park the quaternary cold ice age the glacier
2015/1/6
The Veleta cirque is located at the foot of the Veleta peak, one of the highest summits of the Sierra Nevada National Park (southern Spain). This cirque was the source of a glacier valley during the Q...
Permafrost-affected soils and their carbon pools with a focus on the Russian Arctic
Soil organic matter, swimming pool, the quaternary period, the climate system, cryosphere, arctic climate
2015/1/6
Permafrost-affected soils have accumulated enormous pools of organic matter during the Quaternary period. The area occupied by these soils amounts to more than 8.6 million km2, which is about 27% of a...
Freeze/thaw processes in complex permafrost landscapes of northern Siberia simulated using the TEM ecosystem model: impact of thermokarst ponds and lakes
Freeze/thaw processes complex permafrost landscapes northern Siberia simulated TEM ecosystem model thermokarst ponds and lakes
2014/12/19
Freeze/thaw (F/T) processes can be quite different under the various land surface types found in the complex tundra of the Arctic, such as polygonal tundra (wet center and dry rims), ponds, and thermo...
Simulating high-latitude permafrost regions by the JSBACH terrestrial ecosystem model
High latitudes phenomenon freeze thaw coupling thermal stratified soil hydrological processes insulation moss cover basin northern system capture the dynamic
2014/12/18
The current version of JSBACH incorporates phenomena specific to high latitudes: freeze/thaw processes, coupling thermal and hydrological processes in a layered soil scheme, defining a multilayer snow...
Estimation of the Mean Annual Surface Temperature and Surface Frost Number Using the MODIS Land Surface Temperature Products for Mapping Permafrost in China
permafrost MAST surface frost number remote sensing MODIS, China
2013/9/2
n this paper, we propose a pragmatic scheme for estimation of MAST and surface frost number, based on the assumption that the average of maximum and minimum land surface temperature (LST) represents t...
Monitoring and modeling the infl uence of snow pack and organic soil on a permafrost active layer, Qinghai – Tibetan Plateau of China
Qinghai–Tibetan Plateau Active layer Organic soil Snow pack CoupModel
2013/9/2
As a result of global warming, the depth of the permafrost active layer on the Qinghai–Tibet Plateau (QTP) hasbeen increasing progressively during thepast few decades. The Cold and Arid Regions Enviro...
Degenerative Permafrost Engineering Geology Features Analysis and Forecasting of National Road 214
Degenerative Permafrost Forecast National Road 214
2011/12/20
The paper is based on information of permafrost engineering geology of National Road 214, and for a comparative, analysis the permafrost engineering geology features of National Road 214, Including pe...
OBJECT BASED THERMOKARST LAKE CHANGE MAPPING AS PART OF THE ESA DATA USER ELEMENT (DUE) PERMAFROST
lake change Hexagon Rapideye thermokarst arctic relational features
2014/6/12
This study presents an approach to quantify thermokarst lake change and lake object structure change in spatial very high resolution remote sensing data as part of ESAs "Data User Element Permafrost"....
Growth of a high-elevation large inland lake，associated with climate change and permafrost degradation in Tibet
high-elevation large inland lake climate change permafrost degradation Tibet
2010/4/7
This study analyzed satellite images and long term climate variables from a high-elevation meteorological station (4730 m) and streamflow records to examine hydrological response of Nam Co Lake (4718 ...
Forest decline caused by high soil water conditions in a permafrost region
Forest decline high soil water conditions permafrost region
2010/2/20
In the permafrost region near Yakutsk, eastern Siberia, Russia, annual precipitation (June–May) in 2005–2006 and 2006–2007 exceeded the 26-year (1982–2008) mean of 222±68 mm by 185 mm and 128 mm, resp...
Forest decline caused by high soil water conditions in a permafrost region
Forest decline high soil water conditions permafrost region
2010/3/5
In the permafrost region near Yakutsk, eastern Siberia, Russia, annual precipitation (June–May) in 2005–2006 and 2006–2007 exceeded the 26-year (1982–2008) mean of 222±68 mm by 185 mm and 128 mm, resp...