Surface temperature measurements near Ny-Ålesund, Svalbard, Norway in 2008 with links to data files
The ground surface temperature is one of the key parameters that determine the thermal regime of permafrost soils in arctic regions. Due to remoteness of most permafrost areas, monitoring of the land surface temperature (LST) through remote sensing is desirable. However, suitable satellite platforms...
Main Authors: | , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2011
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.746674 https://doi.org/10.1594/PANGAEA.746674 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.746674 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.746674 2023-05-15T14:27:16+02:00 Surface temperature measurements near Ny-Ålesund, Svalbard, Norway in 2008 with links to data files Westermann, Sebastian Langer, Moritz Boike, Julia LATITUDE: 78.921600 * LONGITUDE: 11.855750 * DATE/TIME START: 2008-07-24T16:20:00 * DATE/TIME END: 2008-09-15T10:00:00 * MINIMUM ELEVATION: 40.0 m * MAXIMUM ELEVATION: 40.0 m 2011-02-14 text/tab-separated-values, 21867 data points https://doi.pangaea.de/10.1594/PANGAEA.746674 https://doi.org/10.1594/PANGAEA.746674 en eng PANGAEA Gallery of surface temperature images measurements near Ny-Alesund, Svalbard, Norway (URI: https://www.pangaea.de/helpers/Airphoto.php?P=NYA&D=LH_2008&ID=746674) https://doi.pangaea.de/10.1594/PANGAEA.746674 https://doi.org/10.1594/PANGAEA.746674 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Westermann, Sebastian; Langer, Moritz; Boike, Julia (2011): Spatial and temporal variations of summer surface temperatures of high-arctic tundra on Svalbard - implications for MODIS LST based permafrost monitoring. Remote Sensing of Environment, 115(3), 908-922, https://doi.org/10.1016/j.rse.2010.11.018 AWI_PerDyn AWIPEV DATE/TIME NYA_LH_2008 NYA_Meteorological_Obs Ny-Ålesund Spitsbergen Permafrost Research (Periglacial Dynamics) @ AWI Thermal imaging system TIS Uniform resource locator/link to image Uniform resource locator/link to raw data file Uniform resource locator/link to thumbnail Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.746674 https://doi.org/10.1016/j.rse.2010.11.018 2023-01-20T08:51:31Z The ground surface temperature is one of the key parameters that determine the thermal regime of permafrost soils in arctic regions. Due to remoteness of most permafrost areas, monitoring of the land surface temperature (LST) through remote sensing is desirable. However, suitable satellite platforms such as MODIS provide spatial resolutions, that cannot resolve the considerable small-scale heterogeneity of the surface conditions characteristic for many permafrost areas. This study investigates the spatial variability of summer surface temperatures of high-arctic tundra on Svalbard, Norway. A thermal imaging system mounted on a mast facilitates continuous monitoring of approximately 100 x 100 m of tundra with a wide variability of different surface covers and soil moisture conditions over the entire summer season from the snow melt until fall. The net radiation is found to be a control parameter for the differences in surface temperature between wet and dry areas. Under clear-sky conditions in July, the differences in surface temperature between wet and dry areas reach up to 10K. The spatial differences reduce strongly in weekly averages of the surface temperature, which are relevant for the soil temperature evolution of deeper layers. Nevertheless, a considerable variability remains, with maximum differences between wet and dry areas of 3 to 4K. Furthermore, the pattern of snow patches and snow-free areas during snow melt in July causes even greater differences of more than 10K in the weekly averages. Towards the end of the summer season, the differences in surface temperature gradually diminish. Due to the pronounced spatial variability in July, the accumulated degree-day totals of the snow-free period can differ by more than 60% throughout the study area. The terrestrial observations from the thermal imaging system are compared to measurements of the land surface temperature from the MODIS sensor. During periods with frequent clear-sky conditions and thus a high density of satellite data, weekly averages ... Dataset Arctic Arctic Ny Ålesund Ny-Ålesund permafrost Svalbard Tundra Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science Arctic Norway Ny-Ålesund Svalbard ENVELOPE(11.855750,11.855750,78.921600,78.921600) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_PerDyn AWIPEV DATE/TIME NYA_LH_2008 NYA_Meteorological_Obs Ny-Ålesund Spitsbergen Permafrost Research (Periglacial Dynamics) @ AWI Thermal imaging system TIS Uniform resource locator/link to image Uniform resource locator/link to raw data file Uniform resource locator/link to thumbnail |
spellingShingle |
AWI_PerDyn AWIPEV DATE/TIME NYA_LH_2008 NYA_Meteorological_Obs Ny-Ålesund Spitsbergen Permafrost Research (Periglacial Dynamics) @ AWI Thermal imaging system TIS Uniform resource locator/link to image Uniform resource locator/link to raw data file Uniform resource locator/link to thumbnail Westermann, Sebastian Langer, Moritz Boike, Julia Surface temperature measurements near Ny-Ålesund, Svalbard, Norway in 2008 with links to data files |
topic_facet |
AWI_PerDyn AWIPEV DATE/TIME NYA_LH_2008 NYA_Meteorological_Obs Ny-Ålesund Spitsbergen Permafrost Research (Periglacial Dynamics) @ AWI Thermal imaging system TIS Uniform resource locator/link to image Uniform resource locator/link to raw data file Uniform resource locator/link to thumbnail |
description |
The ground surface temperature is one of the key parameters that determine the thermal regime of permafrost soils in arctic regions. Due to remoteness of most permafrost areas, monitoring of the land surface temperature (LST) through remote sensing is desirable. However, suitable satellite platforms such as MODIS provide spatial resolutions, that cannot resolve the considerable small-scale heterogeneity of the surface conditions characteristic for many permafrost areas. This study investigates the spatial variability of summer surface temperatures of high-arctic tundra on Svalbard, Norway. A thermal imaging system mounted on a mast facilitates continuous monitoring of approximately 100 x 100 m of tundra with a wide variability of different surface covers and soil moisture conditions over the entire summer season from the snow melt until fall. The net radiation is found to be a control parameter for the differences in surface temperature between wet and dry areas. Under clear-sky conditions in July, the differences in surface temperature between wet and dry areas reach up to 10K. The spatial differences reduce strongly in weekly averages of the surface temperature, which are relevant for the soil temperature evolution of deeper layers. Nevertheless, a considerable variability remains, with maximum differences between wet and dry areas of 3 to 4K. Furthermore, the pattern of snow patches and snow-free areas during snow melt in July causes even greater differences of more than 10K in the weekly averages. Towards the end of the summer season, the differences in surface temperature gradually diminish. Due to the pronounced spatial variability in July, the accumulated degree-day totals of the snow-free period can differ by more than 60% throughout the study area. The terrestrial observations from the thermal imaging system are compared to measurements of the land surface temperature from the MODIS sensor. During periods with frequent clear-sky conditions and thus a high density of satellite data, weekly averages ... |
format |
Dataset |
author |
Westermann, Sebastian Langer, Moritz Boike, Julia |
author_facet |
Westermann, Sebastian Langer, Moritz Boike, Julia |
author_sort |
Westermann, Sebastian |
title |
Surface temperature measurements near Ny-Ålesund, Svalbard, Norway in 2008 with links to data files |
title_short |
Surface temperature measurements near Ny-Ålesund, Svalbard, Norway in 2008 with links to data files |
title_full |
Surface temperature measurements near Ny-Ålesund, Svalbard, Norway in 2008 with links to data files |
title_fullStr |
Surface temperature measurements near Ny-Ålesund, Svalbard, Norway in 2008 with links to data files |
title_full_unstemmed |
Surface temperature measurements near Ny-Ålesund, Svalbard, Norway in 2008 with links to data files |
title_sort |
surface temperature measurements near ny-ålesund, svalbard, norway in 2008 with links to data files |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.746674 https://doi.org/10.1594/PANGAEA.746674 |
op_coverage |
LATITUDE: 78.921600 * LONGITUDE: 11.855750 * DATE/TIME START: 2008-07-24T16:20:00 * DATE/TIME END: 2008-09-15T10:00:00 * MINIMUM ELEVATION: 40.0 m * MAXIMUM ELEVATION: 40.0 m |
long_lat |
ENVELOPE(11.855750,11.855750,78.921600,78.921600) |
geographic |
Arctic Norway Ny-Ålesund Svalbard |
geographic_facet |
Arctic Norway Ny-Ålesund Svalbard |
genre |
Arctic Arctic Ny Ålesund Ny-Ålesund permafrost Svalbard Tundra Spitsbergen |
genre_facet |
Arctic Arctic Ny Ålesund Ny-Ålesund permafrost Svalbard Tundra Spitsbergen |
op_source |
Supplement to: Westermann, Sebastian; Langer, Moritz; Boike, Julia (2011): Spatial and temporal variations of summer surface temperatures of high-arctic tundra on Svalbard - implications for MODIS LST based permafrost monitoring. Remote Sensing of Environment, 115(3), 908-922, https://doi.org/10.1016/j.rse.2010.11.018 |
op_relation |
Gallery of surface temperature images measurements near Ny-Alesund, Svalbard, Norway (URI: https://www.pangaea.de/helpers/Airphoto.php?P=NYA&D=LH_2008&ID=746674) https://doi.pangaea.de/10.1594/PANGAEA.746674 https://doi.org/10.1594/PANGAEA.746674 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.746674 https://doi.org/10.1016/j.rse.2010.11.018 |
_version_ |
1766300903863746560 |