Multilevel spatiotemporal validation of snow/ice mass balance and runoff modeling in glacierized catchments
In this study, the fully distributed, physically based hydroclimatological model AMUNDSEN is set up for catchments in the highly glacierized Ötztal Alps (Austria, 558 km 2 in total). The model is applied for the period 1997–2013, using a spatial resolution of 50 m and a temporal resolution of 1 h. A...
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ftdoajarticles:oai:doaj.org/article:312876ccc4cb41df84a42bb220edb56f 2023-05-15T18:32:31+02:00 Multilevel spatiotemporal validation of snow/ice mass balance and runoff modeling in glacierized catchments F. Hanzer K. Helfricht T. Marke U. Strasser 2016-08-01T00:00:00Z https://doi.org/10.5194/tc-10-1859-2016 https://doaj.org/article/312876ccc4cb41df84a42bb220edb56f EN eng Copernicus Publications http://www.the-cryosphere.net/10/1859/2016/tc-10-1859-2016.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-10-1859-2016 https://doaj.org/article/312876ccc4cb41df84a42bb220edb56f The Cryosphere, Vol 10, Iss 4, Pp 1859-1881 (2016) Environmental sciences GE1-350 Geology QE1-996.5 article 2016 ftdoajarticles https://doi.org/10.5194/tc-10-1859-2016 2022-12-31T09:05:08Z In this study, the fully distributed, physically based hydroclimatological model AMUNDSEN is set up for catchments in the highly glacierized Ötztal Alps (Austria, 558 km 2 in total). The model is applied for the period 1997–2013, using a spatial resolution of 50 m and a temporal resolution of 1 h. A novel parameterization for lateral snow redistribution based on topographic openness is presented to account for the highly heterogeneous snow accumulation patterns in the complex topography of the study region. Multilevel spatiotemporal validation is introduced as a systematic, independent, complete, and redundant validation procedure based on the observation scale of temporal and spatial support, spacing, and extent. This new approach is demonstrated using a comprehensive set of eight independent validation sources: (i) mean areal precipitation over the period 1997–2006 derived by conserving mass in the closure of the water balance, (ii) time series of snow depth recordings at the plot scale, (iii–iv) multitemporal snow extent maps derived from Landsat and MODIS satellite data products, (v) the snow accumulation distribution for the winter season 2010/2011 derived from airborne laser scanning data, (vi) specific surface mass balances for three glaciers in the study area, (vii) spatially distributed glacier surface elevation changes for the entire area over the period 1997–2006, and (viii) runoff recordings for several subcatchments. The results indicate a high overall model skill and especially demonstrate the benefit of the new validation approach. The method can serve as guideline for systematically validating the coupled components in integrated snow-hydrological and glacio-hydrological models. Article in Journal/Newspaper The Cryosphere Directory of Open Access Journals: DOAJ Articles The Cryosphere 10 4 1859 1881 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 F. Hanzer K. Helfricht T. Marke U. Strasser Multilevel spatiotemporal validation of snow/ice mass balance and runoff modeling in glacierized catchments |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
In this study, the fully distributed, physically based hydroclimatological model AMUNDSEN is set up for catchments in the highly glacierized Ötztal Alps (Austria, 558 km 2 in total). The model is applied for the period 1997–2013, using a spatial resolution of 50 m and a temporal resolution of 1 h. A novel parameterization for lateral snow redistribution based on topographic openness is presented to account for the highly heterogeneous snow accumulation patterns in the complex topography of the study region. Multilevel spatiotemporal validation is introduced as a systematic, independent, complete, and redundant validation procedure based on the observation scale of temporal and spatial support, spacing, and extent. This new approach is demonstrated using a comprehensive set of eight independent validation sources: (i) mean areal precipitation over the period 1997–2006 derived by conserving mass in the closure of the water balance, (ii) time series of snow depth recordings at the plot scale, (iii–iv) multitemporal snow extent maps derived from Landsat and MODIS satellite data products, (v) the snow accumulation distribution for the winter season 2010/2011 derived from airborne laser scanning data, (vi) specific surface mass balances for three glaciers in the study area, (vii) spatially distributed glacier surface elevation changes for the entire area over the period 1997–2006, and (viii) runoff recordings for several subcatchments. The results indicate a high overall model skill and especially demonstrate the benefit of the new validation approach. The method can serve as guideline for systematically validating the coupled components in integrated snow-hydrological and glacio-hydrological models. |
format |
Article in Journal/Newspaper |
author |
F. Hanzer K. Helfricht T. Marke U. Strasser |
author_facet |
F. Hanzer K. Helfricht T. Marke U. Strasser |
author_sort |
F. Hanzer |
title |
Multilevel spatiotemporal validation of snow/ice mass balance and runoff modeling in glacierized catchments |
title_short |
Multilevel spatiotemporal validation of snow/ice mass balance and runoff modeling in glacierized catchments |
title_full |
Multilevel spatiotemporal validation of snow/ice mass balance and runoff modeling in glacierized catchments |
title_fullStr |
Multilevel spatiotemporal validation of snow/ice mass balance and runoff modeling in glacierized catchments |
title_full_unstemmed |
Multilevel spatiotemporal validation of snow/ice mass balance and runoff modeling in glacierized catchments |
title_sort |
multilevel spatiotemporal validation of snow/ice mass balance and runoff modeling in glacierized catchments |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/tc-10-1859-2016 https://doaj.org/article/312876ccc4cb41df84a42bb220edb56f |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 10, Iss 4, Pp 1859-1881 (2016) |
op_relation |
http://www.the-cryosphere.net/10/1859/2016/tc-10-1859-2016.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 1994-0416 1994-0424 doi:10.5194/tc-10-1859-2016 https://doaj.org/article/312876ccc4cb41df84a42bb220edb56f |
op_doi |
https://doi.org/10.5194/tc-10-1859-2016 |
container_title |
The Cryosphere |
container_volume |
10 |
container_issue |
4 |
container_start_page |
1859 |
op_container_end_page |
1881 |
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