搜索结果: 1-15 共查到“理学 permafrost”相关记录23条 . 查询时间(0.093 秒)
Thawing permafrost releases greenhouse gas from depth
permafrost methane concentration limestone greenhouse gas effect
2021/8/3
Geologists compared the spatial and temporal distribution of methane concentrations in the air of northern Siberia with geological maps. The result: the methane concentrations in the air after last ye...
The environment for permafrost in Daisetsu Mountains in Japan is projected to decrease significantly
Japan climatic conditions permafrost mountains
2021/8/2
Areas with climatic conditions suitable for sustaining permafrost in the Daisetsu Mountains are projected. The size of the area in the Daisetsu Mountains where climatic conditions were suitable for pe...
Coastal permafrost more susceptible to climate change than previously thought（图）
Coastal permafrost susceptible climate change previously thought
2020/10/30
If you flew from the sea toward the land along the north slope of Alaska, you would cross from the water, over a narrow beach, and then to the tundra. From the air, that tundra would look like a lands...
Patterns in permafrost soils could help climate change models（图）
Patterns permafrost soils climate change models
2020/6/19
The Arctic covers about 20% of the planet. But almost everything hydrologists know about the carbon-rich soils blanketing its permafrost comes from very few measurements taken just feet from Alaska's ...
Thawing permafrost affects Alaska's land-to-ocean river flows（图）
Thawing permafrost Alaska land-to-ocean river flows
2020/1/21
A new analysis of the hydrologic cycle across the North Slope of Alaska reveals significant increases in subsurface runoff and cold season discharge -- changes scientists say reflect thawing permafros...
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...
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...
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...
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...
LiDAR for monitoring mass movements in permafrost environments at the cirque Hinteres Langtal, Austria, between 2000 and 2008
LiDAR mass movements permafrost environments cirque Hinteres Langtal
2009/12/8
Permafrost areas receive more and more attention in terms of natural hazards in recent years due to ongoing global warming. Active rockglaciers are mixtures of debris and ice (of different origin) in ...