High-resolution digital elevation model (DEM) of a thermokarst depression in Siberian ice-rich permafrost deposits
This data set provides a high-resolution digital elevation model (DEM) of a thermokarst depression (~7 km²) on ice-complex deposits in the Arctic Lena Delta, Siberia. The DEM based on a geodetic field survey and was used for quantitative land surface analyses and detailed description of the thermoka...
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ftdatacite:10.1594/pangaea.759573 2023-05-15T15:00:58+02:00 High-resolution digital elevation model (DEM) of a thermokarst depression in Siberian ice-rich permafrost deposits Ulrich, Mathias Günther, Frank Morgenstern, Anne Schirrmeister, Lutz 2011 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.759573 https://doi.pangaea.de/10.1594/PANGAEA.759573 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/2010je003640 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY File size Uniform resource locator/link to file Comment RESPONSE AWI Arctic Land Expedition Dataset dataset 2011 ftdatacite https://doi.org/10.1594/pangaea.759573 https://doi.org/10.1029/2010je003640 2022-02-09T13:17:17Z This data set provides a high-resolution digital elevation model (DEM) of a thermokarst depression (~7 km²) on ice-complex deposits in the Arctic Lena Delta, Siberia. The DEM based on a geodetic field survey and was used for quantitative land surface analyses and detailed description of the thermokarst depression morphology. Detailed morphometrical analyses, volume calculations, and solar radiation modeling were performed and statistically analyzed by Ulrich et al. (2010) to investigate the asymmetrical thermokarst depression development and directed lake migration previously proposed by Morgenstern et al. (2008). Furthermore, the high-resolution DEM in combination with satellite data allowed detailed analyses of spatial and temporal landscape changes due to thermokarst development (Günther, 2009). : A tacheometric field survey was carried out on the German-Russian Expedition Lena 2008 using a ZEISS ELTA C30 tacheometer with an electro-optical distance measurement device. Altogether, 2663 points representing the thermokarst depression were measured and stored in coordinate-point database. The mean accuracy of horizontal and height stationing is better than 10 cm and 5 cm, respectively.For calculating a hydrologically correct DEM within ArcGIS (ESRI) the TOPOGRID algorithm by Hutchinson (1989) was used. A grid cell size of 3 m was chosen for the output DEM to reflect small-scale morphological characteristics. Vertical accuracy of the DEM was tested by comparing height values from the calculated DEM to the original point database. The root mean square error (RMSE) averaged 0.28 cm, indicating high accuracy of the model.Number of original measurement points: 2663; interpolated raster grid size: 3 m; Number of columns: 1061; Number of rows: 1101See further detail for an overview of region. Dataset Arctic Ice lena delta permafrost Thermokarst Siberia DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
File size Uniform resource locator/link to file Comment RESPONSE AWI Arctic Land Expedition |
spellingShingle |
File size Uniform resource locator/link to file Comment RESPONSE AWI Arctic Land Expedition Ulrich, Mathias Günther, Frank Morgenstern, Anne Schirrmeister, Lutz High-resolution digital elevation model (DEM) of a thermokarst depression in Siberian ice-rich permafrost deposits |
topic_facet |
File size Uniform resource locator/link to file Comment RESPONSE AWI Arctic Land Expedition |
description |
This data set provides a high-resolution digital elevation model (DEM) of a thermokarst depression (~7 km²) on ice-complex deposits in the Arctic Lena Delta, Siberia. The DEM based on a geodetic field survey and was used for quantitative land surface analyses and detailed description of the thermokarst depression morphology. Detailed morphometrical analyses, volume calculations, and solar radiation modeling were performed and statistically analyzed by Ulrich et al. (2010) to investigate the asymmetrical thermokarst depression development and directed lake migration previously proposed by Morgenstern et al. (2008). Furthermore, the high-resolution DEM in combination with satellite data allowed detailed analyses of spatial and temporal landscape changes due to thermokarst development (Günther, 2009). : A tacheometric field survey was carried out on the German-Russian Expedition Lena 2008 using a ZEISS ELTA C30 tacheometer with an electro-optical distance measurement device. Altogether, 2663 points representing the thermokarst depression were measured and stored in coordinate-point database. The mean accuracy of horizontal and height stationing is better than 10 cm and 5 cm, respectively.For calculating a hydrologically correct DEM within ArcGIS (ESRI) the TOPOGRID algorithm by Hutchinson (1989) was used. A grid cell size of 3 m was chosen for the output DEM to reflect small-scale morphological characteristics. Vertical accuracy of the DEM was tested by comparing height values from the calculated DEM to the original point database. The root mean square error (RMSE) averaged 0.28 cm, indicating high accuracy of the model.Number of original measurement points: 2663; interpolated raster grid size: 3 m; Number of columns: 1061; Number of rows: 1101See further detail for an overview of region. |
format |
Dataset |
author |
Ulrich, Mathias Günther, Frank Morgenstern, Anne Schirrmeister, Lutz |
author_facet |
Ulrich, Mathias Günther, Frank Morgenstern, Anne Schirrmeister, Lutz |
author_sort |
Ulrich, Mathias |
title |
High-resolution digital elevation model (DEM) of a thermokarst depression in Siberian ice-rich permafrost deposits |
title_short |
High-resolution digital elevation model (DEM) of a thermokarst depression in Siberian ice-rich permafrost deposits |
title_full |
High-resolution digital elevation model (DEM) of a thermokarst depression in Siberian ice-rich permafrost deposits |
title_fullStr |
High-resolution digital elevation model (DEM) of a thermokarst depression in Siberian ice-rich permafrost deposits |
title_full_unstemmed |
High-resolution digital elevation model (DEM) of a thermokarst depression in Siberian ice-rich permafrost deposits |
title_sort |
high-resolution digital elevation model (dem) of a thermokarst depression in siberian ice-rich permafrost deposits |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2011 |
url |
https://dx.doi.org/10.1594/pangaea.759573 https://doi.pangaea.de/10.1594/PANGAEA.759573 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice lena delta permafrost Thermokarst Siberia |
genre_facet |
Arctic Ice lena delta permafrost Thermokarst Siberia |
op_relation |
https://dx.doi.org/10.1029/2010je003640 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.759573 https://doi.org/10.1029/2010je003640 |
_version_ |
1766333011723288576 |