Surface energy fluxes and distribution models of permafrost in high mountain areas: An overview of current developments
In recent years successful attempts have been made to develop and improve spatial modelling of mountain permafrost distribution. Work package 4 of the PACE project (Permafrost and Climate in Europe) sought to provide the essential basis not only of present-day modelling capability, but also of futur...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.546.8866 2023-05-15T16:37:15+02:00 Surface energy fluxes and distribution models of permafrost in high mountain areas: An overview of current developments Martin Hoelzle Catherine Mittaz Wilfried Haeberli The Pennsylvania State University CiteSeerX Archives 2001 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.546.8866 http://www.geo.unizh.ch/~hoelzle/hoelzleetal2001.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.546.8866 http://www.geo.unizh.ch/~hoelzle/hoelzleetal2001.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.geo.unizh.ch/~hoelzle/hoelzleetal2001.pdf text 2001 ftciteseerx 2016-01-08T11:19:51Z In recent years successful attempts have been made to develop and improve spatial modelling of mountain permafrost distribution. Work package 4 of the PACE project (Permafrost and Climate in Europe) sought to provide the essential basis not only of present-day modelling capability, but also of future enhancements in modelling methodology. This paper briefly outlines the currently available typology of models, which involve various levels of sophistication at different spatio-temporal scales. Appropriate models may be applied to a range of environmental issues in cold mountain areas, including engineering applications, climate-change scenarios, large-scale mapping, studies of surface processes or environmental concerns. Special emphasis is given here to aspects of energy exchange at the surface and within the active layer. Such energy fluxes remain poorly understood but play an essential role in process-oriented research and sensitivity studies with respect to complex interactions and feedbacks within the system. In contrast to relatively flat permafrost areas in polar and subpolar lowlands, circulation of water and air can cause important lateral fluxes of matter and energy within coarse blocks on steep slopes and result in highly variable and sometimes extreme thermal offsets between the ground surface and the permafrost table. Measuring and numerically modelling such fluxes together with coupling time-dependent surface and subsurface ground thermal conditions in characteristic materials (bedrock, ice-rich debris, fine-grained deposits) constitute the Text Ice permafrost Unknown Cold Mountain ENVELOPE(173.152,173.152,52.901,52.901) |
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Open Polar |
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ftciteseerx |
language |
English |
description |
In recent years successful attempts have been made to develop and improve spatial modelling of mountain permafrost distribution. Work package 4 of the PACE project (Permafrost and Climate in Europe) sought to provide the essential basis not only of present-day modelling capability, but also of future enhancements in modelling methodology. This paper briefly outlines the currently available typology of models, which involve various levels of sophistication at different spatio-temporal scales. Appropriate models may be applied to a range of environmental issues in cold mountain areas, including engineering applications, climate-change scenarios, large-scale mapping, studies of surface processes or environmental concerns. Special emphasis is given here to aspects of energy exchange at the surface and within the active layer. Such energy fluxes remain poorly understood but play an essential role in process-oriented research and sensitivity studies with respect to complex interactions and feedbacks within the system. In contrast to relatively flat permafrost areas in polar and subpolar lowlands, circulation of water and air can cause important lateral fluxes of matter and energy within coarse blocks on steep slopes and result in highly variable and sometimes extreme thermal offsets between the ground surface and the permafrost table. Measuring and numerically modelling such fluxes together with coupling time-dependent surface and subsurface ground thermal conditions in characteristic materials (bedrock, ice-rich debris, fine-grained deposits) constitute the |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Martin Hoelzle Catherine Mittaz Wilfried Haeberli |
spellingShingle |
Martin Hoelzle Catherine Mittaz Wilfried Haeberli Surface energy fluxes and distribution models of permafrost in high mountain areas: An overview of current developments |
author_facet |
Martin Hoelzle Catherine Mittaz Wilfried Haeberli |
author_sort |
Martin Hoelzle |
title |
Surface energy fluxes and distribution models of permafrost in high mountain areas: An overview of current developments |
title_short |
Surface energy fluxes and distribution models of permafrost in high mountain areas: An overview of current developments |
title_full |
Surface energy fluxes and distribution models of permafrost in high mountain areas: An overview of current developments |
title_fullStr |
Surface energy fluxes and distribution models of permafrost in high mountain areas: An overview of current developments |
title_full_unstemmed |
Surface energy fluxes and distribution models of permafrost in high mountain areas: An overview of current developments |
title_sort |
surface energy fluxes and distribution models of permafrost in high mountain areas: an overview of current developments |
publishDate |
2001 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.546.8866 http://www.geo.unizh.ch/~hoelzle/hoelzleetal2001.pdf |
long_lat |
ENVELOPE(173.152,173.152,52.901,52.901) |
geographic |
Cold Mountain |
geographic_facet |
Cold Mountain |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
http://www.geo.unizh.ch/~hoelzle/hoelzleetal2001.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.546.8866 http://www.geo.unizh.ch/~hoelzle/hoelzleetal2001.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766027542718840832 |