Glacier observational data assimilation for mass balance modelling in Svalbard ...
<!--!introduction!--> Accurate estimation of glacier mass balance is vital in several fields, including climate change impact assessment and water resource management. However, classical modelling approaches on a regional scale are usually hampered by uncertainties in forcing data, model struc...
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ftdatacite:10.57757/iugg23-3280 2023-07-23T04:19:24+02:00 Glacier observational data assimilation for mass balance modelling in Svalbard ... Cao, Wenxue Schmidt, Louise Steffensen Aalstad, Kristoffer Westermann, Sebastian Schuler, Thomas V 2023 https://dx.doi.org/10.57757/iugg23-3280 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019747 en eng GFZ German Research Centre for Geosciences Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Article ConferencePaper Oral 2023 ftdatacite https://doi.org/10.57757/iugg23-3280 2023-07-03T21:49:59Z <!--!introduction!--> Accurate estimation of glacier mass balance is vital in several fields, including climate change impact assessment and water resource management. However, classical modelling approaches on a regional scale are usually hampered by uncertainties in forcing data, model structure, and parameter values. Data assimilation is a method to incorporate observations into modellings and to effectively reduce the uncertainty of results. So far, it has been rarely used in glacier mass balance modelling. Here, we test different assimilation methods, including ensemble Kalman filters and smoothers, to incorporate albedo derived from MODIS data and stake readings from in-situ mass-balance measurements into an energy balance model applied to Svalbard glaciers. The overall objective is to improve the accuracy of glacier mass balance reconstruction and forecasting in Svalbard by combining observations and models. In a range of experiments, we analyze the performance of different assimilation methods ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... Conference Object glacier Svalbard DataCite Metadata Store (German National Library of Science and Technology) Svalbard |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
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English |
description |
<!--!introduction!--> Accurate estimation of glacier mass balance is vital in several fields, including climate change impact assessment and water resource management. However, classical modelling approaches on a regional scale are usually hampered by uncertainties in forcing data, model structure, and parameter values. Data assimilation is a method to incorporate observations into modellings and to effectively reduce the uncertainty of results. So far, it has been rarely used in glacier mass balance modelling. Here, we test different assimilation methods, including ensemble Kalman filters and smoothers, to incorporate albedo derived from MODIS data and stake readings from in-situ mass-balance measurements into an energy balance model applied to Svalbard glaciers. The overall objective is to improve the accuracy of glacier mass balance reconstruction and forecasting in Svalbard by combining observations and models. In a range of experiments, we analyze the performance of different assimilation methods ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
format |
Conference Object |
author |
Cao, Wenxue Schmidt, Louise Steffensen Aalstad, Kristoffer Westermann, Sebastian Schuler, Thomas V |
spellingShingle |
Cao, Wenxue Schmidt, Louise Steffensen Aalstad, Kristoffer Westermann, Sebastian Schuler, Thomas V Glacier observational data assimilation for mass balance modelling in Svalbard ... |
author_facet |
Cao, Wenxue Schmidt, Louise Steffensen Aalstad, Kristoffer Westermann, Sebastian Schuler, Thomas V |
author_sort |
Cao, Wenxue |
title |
Glacier observational data assimilation for mass balance modelling in Svalbard ... |
title_short |
Glacier observational data assimilation for mass balance modelling in Svalbard ... |
title_full |
Glacier observational data assimilation for mass balance modelling in Svalbard ... |
title_fullStr |
Glacier observational data assimilation for mass balance modelling in Svalbard ... |
title_full_unstemmed |
Glacier observational data assimilation for mass balance modelling in Svalbard ... |
title_sort |
glacier observational data assimilation for mass balance modelling in svalbard ... |
publisher |
GFZ German Research Centre for Geosciences |
publishDate |
2023 |
url |
https://dx.doi.org/10.57757/iugg23-3280 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019747 |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
glacier Svalbard |
genre_facet |
glacier Svalbard |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.57757/iugg23-3280 |
_version_ |
1772182417323327488 |