Evaluating the suitability of three gridded‐datasets and their impacts on hydrological simulation at Scotty Creek in the southern Northwest Territories, Canada
Abstract In the southern Northwest Territories (NWT), long time series of historical observations of climate and hydrology are scarce. Gridded datasets have been used as an alternative to instrumental observations for climate analysis in this area, but not for driving models to understand hydrologic...
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crwiley:10.1002/hyp.13663 2024-09-15T18:26:35+00:00 Evaluating the suitability of three gridded‐datasets and their impacts on hydrological simulation at Scotty Creek in the southern Northwest Territories, Canada Persaud, Bhaleka D. Whitfield, Paul H. Quinton, William L. Stone, Lindsay E. Natural Sciences and Engineering Research Council of Canada 2020 http://dx.doi.org/10.1002/hyp.13663 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.13663 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.13663 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.13663 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 34, issue 4, page 898-913 ISSN 0885-6087 1099-1085 journal-article 2020 crwiley https://doi.org/10.1002/hyp.13663 2024-07-23T04:12:42Z Abstract In the southern Northwest Territories (NWT), long time series of historical observations of climate and hydrology are scarce. Gridded datasets have been used as an alternative to instrumental observations for climate analysis in this area, but not for driving models to understand hydrological processes in the southern NWT. The suitability of temperature and precipitation from three‐gridded datasets (Australian National University Spline [ANUSPLIN], ERA‐Interim, and Modern‐Era Retrospective Analysis for Research and Application, Version 2 [MERRA‐2]) as forcings for hydrological modelling in a small subcatchment in the southern NWT are assessed. Multiple statistical techniques are used to ensure that structural and temporal attributes of the observational datasets are adequately compared. Daily minimum and maximum air temperatures in gridded datasets are more similar to observations than precipitation. The ANUSPLIN temperature time series are more statistically similar to observations, based on population statistics and temporal structure, than either of ERA‐Interim or MERRA‐2. The gridded datasets capture the seasonal and annual seasonal variability of precipitation but with large biases. ANUSPLIN precipitation compares better with observations than either ERA‐Interim or MERRA‐2 precipitation. The biases in these gridded datasets affect run‐off simulations. The biases in hydrological simulations are predictable from the statistical differences between gridded datasets and observations and can be used to make informed choices about their use. Article in Journal/Newspaper Northwest Territories Wiley Online Library Hydrological Processes 34 4 898 913 |
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English |
description |
Abstract In the southern Northwest Territories (NWT), long time series of historical observations of climate and hydrology are scarce. Gridded datasets have been used as an alternative to instrumental observations for climate analysis in this area, but not for driving models to understand hydrological processes in the southern NWT. The suitability of temperature and precipitation from three‐gridded datasets (Australian National University Spline [ANUSPLIN], ERA‐Interim, and Modern‐Era Retrospective Analysis for Research and Application, Version 2 [MERRA‐2]) as forcings for hydrological modelling in a small subcatchment in the southern NWT are assessed. Multiple statistical techniques are used to ensure that structural and temporal attributes of the observational datasets are adequately compared. Daily minimum and maximum air temperatures in gridded datasets are more similar to observations than precipitation. The ANUSPLIN temperature time series are more statistically similar to observations, based on population statistics and temporal structure, than either of ERA‐Interim or MERRA‐2. The gridded datasets capture the seasonal and annual seasonal variability of precipitation but with large biases. ANUSPLIN precipitation compares better with observations than either ERA‐Interim or MERRA‐2 precipitation. The biases in these gridded datasets affect run‐off simulations. The biases in hydrological simulations are predictable from the statistical differences between gridded datasets and observations and can be used to make informed choices about their use. |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Persaud, Bhaleka D. Whitfield, Paul H. Quinton, William L. Stone, Lindsay E. |
spellingShingle |
Persaud, Bhaleka D. Whitfield, Paul H. Quinton, William L. Stone, Lindsay E. Evaluating the suitability of three gridded‐datasets and their impacts on hydrological simulation at Scotty Creek in the southern Northwest Territories, Canada |
author_facet |
Persaud, Bhaleka D. Whitfield, Paul H. Quinton, William L. Stone, Lindsay E. |
author_sort |
Persaud, Bhaleka D. |
title |
Evaluating the suitability of three gridded‐datasets and their impacts on hydrological simulation at Scotty Creek in the southern Northwest Territories, Canada |
title_short |
Evaluating the suitability of three gridded‐datasets and their impacts on hydrological simulation at Scotty Creek in the southern Northwest Territories, Canada |
title_full |
Evaluating the suitability of three gridded‐datasets and their impacts on hydrological simulation at Scotty Creek in the southern Northwest Territories, Canada |
title_fullStr |
Evaluating the suitability of three gridded‐datasets and their impacts on hydrological simulation at Scotty Creek in the southern Northwest Territories, Canada |
title_full_unstemmed |
Evaluating the suitability of three gridded‐datasets and their impacts on hydrological simulation at Scotty Creek in the southern Northwest Territories, Canada |
title_sort |
evaluating the suitability of three gridded‐datasets and their impacts on hydrological simulation at scotty creek in the southern northwest territories, canada |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/hyp.13663 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.13663 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.13663 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.13663 |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_source |
Hydrological Processes volume 34, issue 4, page 898-913 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.13663 |
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Hydrological Processes |
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34 |
container_issue |
4 |
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898 |
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913 |
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1810467094848864256 |