Thermal remote sensing of ice-debris landforms using ASTER: an example from the Chilean Andes
Abstract. Remote sensors face challenges in characteriz-ing mountain permafrost and ground thermal conditions or mapping rock glaciers and debris-covered glaciers. We ex-plore the potential of thermal imaging and in particular ther-mal inertia mapping in mountain cryospheric research, fo-cusing on t...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.465.2377 2023-05-15T16:37:35+02:00 Thermal remote sensing of ice-debris landforms using ASTER: an example from the Chilean Andes The Cryosphere A. Brenning M. A. Peña S. Long A. Soliman The Pennsylvania State University CiteSeerX Archives 2012 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.465.2377 http://www.the-cryosphere.net/6/367/2012/tc-6-367-2012.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.465.2377 http://www.the-cryosphere.net/6/367/2012/tc-6-367-2012.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.the-cryosphere.net/6/367/2012/tc-6-367-2012.pdf text 2012 ftciteseerx 2016-01-08T06:52:09Z Abstract. Remote sensors face challenges in characteriz-ing mountain permafrost and ground thermal conditions or mapping rock glaciers and debris-covered glaciers. We ex-plore the potential of thermal imaging and in particular ther-mal inertia mapping in mountain cryospheric research, fo-cusing on the relationships between ground surface temper-atures and the presence of ice-debris landforms on one side and land surface temperature (LST) and apparent thermal in-ertia (ATI) on the other. In our case study we utilize ASTER daytime and nighttime imagery and in-situ measurements of near-surface ground temperature (NSGT) in the Mediter-ranean Andes during a snow-free and dry observation period in late summer. Spatial patterns of LST and NSGT were mostly consistent with each other both at daytime and at nighttime. Daytime LST over ice-debris landforms was de-creased and ATI consequently increased compared to other debris surfaces under otherwise equal conditions, but NSGT showed contradictory results, which underlines the complex-ity and possible scale dependence of ATI in heterogeneous substrates with the presence of a thermal mismatch and a heat sink at depth. While our results demonstrate the utility of thermal imaging and ATI mapping in a mountain cryospheric context, further research is needed for a better interpretation of ATI patterns in complex thermophysical conditions. 1 Text Ice permafrost Unknown |
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ftciteseerx |
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English |
description |
Abstract. Remote sensors face challenges in characteriz-ing mountain permafrost and ground thermal conditions or mapping rock glaciers and debris-covered glaciers. We ex-plore the potential of thermal imaging and in particular ther-mal inertia mapping in mountain cryospheric research, fo-cusing on the relationships between ground surface temper-atures and the presence of ice-debris landforms on one side and land surface temperature (LST) and apparent thermal in-ertia (ATI) on the other. In our case study we utilize ASTER daytime and nighttime imagery and in-situ measurements of near-surface ground temperature (NSGT) in the Mediter-ranean Andes during a snow-free and dry observation period in late summer. Spatial patterns of LST and NSGT were mostly consistent with each other both at daytime and at nighttime. Daytime LST over ice-debris landforms was de-creased and ATI consequently increased compared to other debris surfaces under otherwise equal conditions, but NSGT showed contradictory results, which underlines the complex-ity and possible scale dependence of ATI in heterogeneous substrates with the presence of a thermal mismatch and a heat sink at depth. While our results demonstrate the utility of thermal imaging and ATI mapping in a mountain cryospheric context, further research is needed for a better interpretation of ATI patterns in complex thermophysical conditions. 1 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
The Cryosphere A. Brenning M. A. Peña S. Long A. Soliman |
spellingShingle |
The Cryosphere A. Brenning M. A. Peña S. Long A. Soliman Thermal remote sensing of ice-debris landforms using ASTER: an example from the Chilean Andes |
author_facet |
The Cryosphere A. Brenning M. A. Peña S. Long A. Soliman |
author_sort |
The Cryosphere |
title |
Thermal remote sensing of ice-debris landforms using ASTER: an example from the Chilean Andes |
title_short |
Thermal remote sensing of ice-debris landforms using ASTER: an example from the Chilean Andes |
title_full |
Thermal remote sensing of ice-debris landforms using ASTER: an example from the Chilean Andes |
title_fullStr |
Thermal remote sensing of ice-debris landforms using ASTER: an example from the Chilean Andes |
title_full_unstemmed |
Thermal remote sensing of ice-debris landforms using ASTER: an example from the Chilean Andes |
title_sort |
thermal remote sensing of ice-debris landforms using aster: an example from the chilean andes |
publishDate |
2012 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.465.2377 http://www.the-cryosphere.net/6/367/2012/tc-6-367-2012.pdf |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
http://www.the-cryosphere.net/6/367/2012/tc-6-367-2012.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.465.2377 http://www.the-cryosphere.net/6/367/2012/tc-6-367-2012.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766027879098875904 |