Browse wiki
From CSDMS
Besides long-term monitoring in changes of … Besides long-term monitoring in changes of thermal state of permafrost and active layer thickness, the knowledge of permafrost distribution at very fine scales (tens of meters) in discontinuous permafrost is still largely unknown in Qinghai-Tibet Plateau (QTP). A permafrost island was found by using geophysical investigations in the Heihe River Basin in northeastern QTP. Permafrost island was present at PT10 site beneath alpine steppe and coarse soil with a quality of gravel in surface soil (Fig. 1, Fig. 2). In contrast, permafrost is absent at SFGT site with density land cover area and relatively less gravel. The results showed that the ground surface temperature (5 cm) at PT10 site is lower in winter and higher in summer than the SFG site. The presence of permafrost is caused by soil conditions, especially by high thermal conductivity, based on field investigations. To address the controlling factors of permafrost presentences a 1D heat transfer model is used to compare the ground temperature difference between these two sites by only changing the soil conditions.ites by only changing the soil conditions. +
Fig. 2 Photograph of land cover taken in 31/07/2015. + and Fig. 1 ERT measurements conducted in 31/07 … Fig. 1 ERT measurements conducted in 31/07/2015 with<br>an electrode probe interval of 5 m. Permafrost<br>island are roughly determined by the<br>resistivity contour of 1010 Ω, which<br>is the resistivity value at the interface<br>of frozen/unfrozen. Borehole locations are<br>marked by black square.gt;of frozen/unfrozen. Borehole locations are<br>marked by black square. +
Very Fine Scale of Permafrost Distribution and Controlling Factors +
Lanzhou +
tjzhang@lzu.edu.cn +
Lanzhou University +
Lanzhou +
caobin198912@outlook.com +
Lanzhou University +
Image: +
Image: +
Bootcamp +
1) Bringing CSDMS models into the classroom +
1) Modeling Permafrost toolbox +
1) Parflow groundwater modeling +
China +
Creation date"Creation date" is a predefined property that corresponds to the date of the first revision of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
13:19:40, 30 March 2017 +
Has query"Has query" is a predefined property that represents meta information (in form of a <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
Last editor is"Last editor is" is a predefined property that contains the page name of the user who created the last revision and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
15:50:44, 30 March 2017 +
