Permafrost
Knowledge in thermodynamics Permanently frozen ground exists in circumpolar and high-altitude regions as a balance between average air temperature and the geothermal gradient (the increase in soil temperature with depth that arises from the transfer of heat from the Earth's core). To a lesser e...
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ftunivesp:oai:acervodigital.unesp.br:unesp/363389 2023-05-15T17:57:12+02:00 Permafrost Klingener, Fred Universidade Estadual Paulista (UNESP) 2016-10-26T17:53:00Z http://acervodigital.unesp.br/handle/unesp/363389 http://objetoseducacionais2.mec.gov.br/handle/mec/9389 unknown Permafrost.nbp http://acervodigital.unesp.br/handle/unesp/363389 http://objetoseducacionais2.mec.gov.br/handle/mec/9389 Demonstration freeware using Mathematica Player Thermal diffusivity Heat conduction Educação Superior::Ciências Exatas e da Terra::Física::Propriedades Térmicas da Matéria Condensada outro 2016 ftunivesp 2021-07-18T09:17:33Z Knowledge in thermodynamics Permanently frozen ground exists in circumpolar and high-altitude regions as a balance between average air temperature and the geothermal gradient (the increase in soil temperature with depth that arises from the transfer of heat from the Earth's core). To a lesser extent, whether or not the ground remains permanently frozen also depends on seasonal temperature variation and on the physical and thermal properties of the soil. The graphic shows the depth extent of frozen (blue) and thawed (brown) ground over a time span of two years, beginning in April. The soil region near the surface that undergoes seasonal freeze/thaw cycles is called the active layer. The frozen soil region below the active layer, if it exists, is called permafrost Componente Curricular::Educação Superior::Ciências Exatas e da Terra::Física Other/Unknown Material permafrost Universidade Estadual Paulista São Paulo: Acervo Digital da UNESP / São Paulo State University |
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Universidade Estadual Paulista São Paulo: Acervo Digital da UNESP / São Paulo State University |
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ftunivesp |
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unknown |
topic |
Thermal diffusivity Heat conduction Educação Superior::Ciências Exatas e da Terra::Física::Propriedades Térmicas da Matéria Condensada |
spellingShingle |
Thermal diffusivity Heat conduction Educação Superior::Ciências Exatas e da Terra::Física::Propriedades Térmicas da Matéria Condensada Klingener, Fred Permafrost |
topic_facet |
Thermal diffusivity Heat conduction Educação Superior::Ciências Exatas e da Terra::Física::Propriedades Térmicas da Matéria Condensada |
description |
Knowledge in thermodynamics Permanently frozen ground exists in circumpolar and high-altitude regions as a balance between average air temperature and the geothermal gradient (the increase in soil temperature with depth that arises from the transfer of heat from the Earth's core). To a lesser extent, whether or not the ground remains permanently frozen also depends on seasonal temperature variation and on the physical and thermal properties of the soil. The graphic shows the depth extent of frozen (blue) and thawed (brown) ground over a time span of two years, beginning in April. The soil region near the surface that undergoes seasonal freeze/thaw cycles is called the active layer. The frozen soil region below the active layer, if it exists, is called permafrost Componente Curricular::Educação Superior::Ciências Exatas e da Terra::Física |
author2 |
Universidade Estadual Paulista (UNESP) |
format |
Other/Unknown Material |
author |
Klingener, Fred |
author_facet |
Klingener, Fred |
author_sort |
Klingener, Fred |
title |
Permafrost |
title_short |
Permafrost |
title_full |
Permafrost |
title_fullStr |
Permafrost |
title_full_unstemmed |
Permafrost |
title_sort |
permafrost |
publishDate |
2016 |
url |
http://acervodigital.unesp.br/handle/unesp/363389 http://objetoseducacionais2.mec.gov.br/handle/mec/9389 |
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permafrost |
genre_facet |
permafrost |
op_relation |
Permafrost.nbp http://acervodigital.unesp.br/handle/unesp/363389 http://objetoseducacionais2.mec.gov.br/handle/mec/9389 |
op_rights |
Demonstration freeware using Mathematica Player |
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1766165577915695104 |