Regional estimation of river water temperature at ungauged locations
River water temperature measurement networks suffer from an inadequate spatial coverage and a lack of data. No methods exist for the regional estimation of river water temperature at ungauged sites based on data series from gauged sites. The development of such methods is hence of significant import...
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Online Access: | https://doi.org/10.1016/j.hydroa.2022.100133 https://doaj.org/article/263bbacbb2fc4b9a97c6ef6b9616d88d |
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ftdoajarticles:oai:doaj.org/article:263bbacbb2fc4b9a97c6ef6b9616d88d 2023-05-15T15:32:19+02:00 Regional estimation of river water temperature at ungauged locations Taha B.M.J. Ouarda Christian Charron André St-Hilaire 2022-12-01T00:00:00Z https://doi.org/10.1016/j.hydroa.2022.100133 https://doaj.org/article/263bbacbb2fc4b9a97c6ef6b9616d88d EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2589915522000153 https://doaj.org/toc/2589-9155 2589-9155 doi:10.1016/j.hydroa.2022.100133 https://doaj.org/article/263bbacbb2fc4b9a97c6ef6b9616d88d Journal of Hydrology X, Vol 17, Iss , Pp 100133- (2022) River water temperature Regionalization Temperature duration curve GAM Spatial interpolation Ungauged site Environmental engineering TA170-171 Environmental sciences GE1-350 article 2022 ftdoajarticles https://doi.org/10.1016/j.hydroa.2022.100133 2022-12-30T20:05:37Z River water temperature measurement networks suffer from an inadequate spatial coverage and a lack of data. No methods exist for the regional estimation of river water temperature at ungauged sites based on data series from gauged sites. The development of such methods is hence of significant importance. It is proposed in this study to develop a Temperature-Duration-Curve (TDC) based method to estimate river water temperature at ungauged sites on a real-time basis. A Generalised Additive Model (GAM) based method is used to estimate TDCs at ungauged sites. The estimated TDCs are then used in combination with a spatial interpolation method to obtain daily temperature estimates at ungauged sites. Results are compared with a simple method based on the geographical distance weighted average of neighboring stations. The approaches are applied to 126 river thermal stations located on Atlantic salmon rivers in eastern Canada. Leave-one-out cross validation results indicate that the TDC based methods are robust and outperform the geographical distance weighted method. Article in Journal/Newspaper Atlantic salmon Directory of Open Access Journals: DOAJ Articles Canada Gam ENVELOPE(-57.955,-57.955,-61.923,-61.923) Journal of Hydrology X 17 100133 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
River water temperature Regionalization Temperature duration curve GAM Spatial interpolation Ungauged site Environmental engineering TA170-171 Environmental sciences GE1-350 |
spellingShingle |
River water temperature Regionalization Temperature duration curve GAM Spatial interpolation Ungauged site Environmental engineering TA170-171 Environmental sciences GE1-350 Taha B.M.J. Ouarda Christian Charron André St-Hilaire Regional estimation of river water temperature at ungauged locations |
topic_facet |
River water temperature Regionalization Temperature duration curve GAM Spatial interpolation Ungauged site Environmental engineering TA170-171 Environmental sciences GE1-350 |
description |
River water temperature measurement networks suffer from an inadequate spatial coverage and a lack of data. No methods exist for the regional estimation of river water temperature at ungauged sites based on data series from gauged sites. The development of such methods is hence of significant importance. It is proposed in this study to develop a Temperature-Duration-Curve (TDC) based method to estimate river water temperature at ungauged sites on a real-time basis. A Generalised Additive Model (GAM) based method is used to estimate TDCs at ungauged sites. The estimated TDCs are then used in combination with a spatial interpolation method to obtain daily temperature estimates at ungauged sites. Results are compared with a simple method based on the geographical distance weighted average of neighboring stations. The approaches are applied to 126 river thermal stations located on Atlantic salmon rivers in eastern Canada. Leave-one-out cross validation results indicate that the TDC based methods are robust and outperform the geographical distance weighted method. |
format |
Article in Journal/Newspaper |
author |
Taha B.M.J. Ouarda Christian Charron André St-Hilaire |
author_facet |
Taha B.M.J. Ouarda Christian Charron André St-Hilaire |
author_sort |
Taha B.M.J. Ouarda |
title |
Regional estimation of river water temperature at ungauged locations |
title_short |
Regional estimation of river water temperature at ungauged locations |
title_full |
Regional estimation of river water temperature at ungauged locations |
title_fullStr |
Regional estimation of river water temperature at ungauged locations |
title_full_unstemmed |
Regional estimation of river water temperature at ungauged locations |
title_sort |
regional estimation of river water temperature at ungauged locations |
publisher |
Elsevier |
publishDate |
2022 |
url |
https://doi.org/10.1016/j.hydroa.2022.100133 https://doaj.org/article/263bbacbb2fc4b9a97c6ef6b9616d88d |
long_lat |
ENVELOPE(-57.955,-57.955,-61.923,-61.923) |
geographic |
Canada Gam |
geographic_facet |
Canada Gam |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Journal of Hydrology X, Vol 17, Iss , Pp 100133- (2022) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2589915522000153 https://doaj.org/toc/2589-9155 2589-9155 doi:10.1016/j.hydroa.2022.100133 https://doaj.org/article/263bbacbb2fc4b9a97c6ef6b9616d88d |
op_doi |
https://doi.org/10.1016/j.hydroa.2022.100133 |
container_title |
Journal of Hydrology X |
container_volume |
17 |
container_start_page |
100133 |
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1766362832070246400 |