Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed
This study approached a physically based, semi-distributed SWAT model to test the model sensitivity to the spatial distribution of precipitation. Ten scenarios of precipitation from five scattered rain gauges in an Arctic watershed Målselv in northern Norway were used as inputs to run the SWAT model...
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Online Access: | https://hdl.handle.net/10037/20025 https://doi.org/10.1088/1755-1315/581/1/012025 |
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ftunivtroemsoe:oai:munin.uit.no:10037/20025 2023-05-15T14:26:46+02:00 Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed Bui, Minh Tuan Lu, Jinmei Nie, Linmei 2020-12-04 https://hdl.handle.net/10037/20025 https://doi.org/10.1088/1755-1315/581/1/012025 eng eng IOP Publishing IOP Conference Series: Earth and Environmental Science (EES) Bui M T, Lu J, Nie L. Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed. IOP Conference Series: Earth and Environmental Science (EES). 2020;581:1-9 FRIDAID 1856830 https://doi.org/10.1088/1755-1315/581/1/012025 1755-1307 1755-1315 https://hdl.handle.net/10037/20025 openAccess Copyright 2020 The Author(s) VDP::Technology: 500 VDP::Teknologi: 500 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe https://doi.org/10.1088/1755-1315/581/1/012025 2021-06-25T17:57:49Z This study approached a physically based, semi-distributed SWAT model to test the model sensitivity to the spatial distribution of precipitation. Ten scenarios of precipitation from five scattered rain gauges in an Arctic watershed Målselv in northern Norway were used as inputs to run the SWAT model. Streamflows were simulated. The model runs at monthly time interval based on the historical data of precipitation from 1979-2012. The study used statistical parameters, values of long-term average monthly streamflow and streamflow hydrograph between simulated and observed data for sensitivity analysis. The study found that the result of streamflow simulation is highly sensitive with spatial distribution of rain gauges input. For instance, the scenarios integrating rain gauge number 3, locating inside the watershed with lower precipitation amount than average of selected rain gauges, provided model unsatisfactory (statistical coefficient NSE < 0.5) in streamflow simulation. However, streamflow simulation is satisfactory (NSE: 0.5-0.6) at hydro-gauging station Lundberg far away from rain gauge 3. The hydrograph showed underestimated streamflow simulation in scenario 3,5,6-10 that integrated rain gauge 3, while scenario 1,2,4 that excluded rain gauge 3 showed reasonable agreement between simulated and observed flow. Underestimated streamflow was only found in scenario 3 and 5 at Lundberg. Moreover, the curves of average monthly streamflow showed that the simulated peak discharge in scenario 1,2,4 was performed better than the remaining scenarios. Article in Journal/Newspaper Arctic Arctic Målselv Northern Norway University of Tromsø: Munin Open Research Archive Arctic Lundberg ENVELOPE(19.633,19.633,70.012,70.012) Målselv ENVELOPE(18.615,18.615,69.124,69.124) Norway IOP Conference Series: Earth and Environmental Science 581 012025 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Technology: 500 VDP::Teknologi: 500 |
spellingShingle |
VDP::Technology: 500 VDP::Teknologi: 500 Bui, Minh Tuan Lu, Jinmei Nie, Linmei Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed |
topic_facet |
VDP::Technology: 500 VDP::Teknologi: 500 |
description |
This study approached a physically based, semi-distributed SWAT model to test the model sensitivity to the spatial distribution of precipitation. Ten scenarios of precipitation from five scattered rain gauges in an Arctic watershed Målselv in northern Norway were used as inputs to run the SWAT model. Streamflows were simulated. The model runs at monthly time interval based on the historical data of precipitation from 1979-2012. The study used statistical parameters, values of long-term average monthly streamflow and streamflow hydrograph between simulated and observed data for sensitivity analysis. The study found that the result of streamflow simulation is highly sensitive with spatial distribution of rain gauges input. For instance, the scenarios integrating rain gauge number 3, locating inside the watershed with lower precipitation amount than average of selected rain gauges, provided model unsatisfactory (statistical coefficient NSE < 0.5) in streamflow simulation. However, streamflow simulation is satisfactory (NSE: 0.5-0.6) at hydro-gauging station Lundberg far away from rain gauge 3. The hydrograph showed underestimated streamflow simulation in scenario 3,5,6-10 that integrated rain gauge 3, while scenario 1,2,4 that excluded rain gauge 3 showed reasonable agreement between simulated and observed flow. Underestimated streamflow was only found in scenario 3 and 5 at Lundberg. Moreover, the curves of average monthly streamflow showed that the simulated peak discharge in scenario 1,2,4 was performed better than the remaining scenarios. |
format |
Article in Journal/Newspaper |
author |
Bui, Minh Tuan Lu, Jinmei Nie, Linmei |
author_facet |
Bui, Minh Tuan Lu, Jinmei Nie, Linmei |
author_sort |
Bui, Minh Tuan |
title |
Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed |
title_short |
Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed |
title_full |
Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed |
title_fullStr |
Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed |
title_full_unstemmed |
Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed |
title_sort |
sensitivity analysis of the swat model to spatial distribution of precipitation in streamflow simulation in an arctic watershed |
publisher |
IOP Publishing |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/20025 https://doi.org/10.1088/1755-1315/581/1/012025 |
long_lat |
ENVELOPE(19.633,19.633,70.012,70.012) ENVELOPE(18.615,18.615,69.124,69.124) |
geographic |
Arctic Lundberg Målselv Norway |
geographic_facet |
Arctic Lundberg Målselv Norway |
genre |
Arctic Arctic Målselv Northern Norway |
genre_facet |
Arctic Arctic Målselv Northern Norway |
op_relation |
IOP Conference Series: Earth and Environmental Science (EES) Bui M T, Lu J, Nie L. Sensitivity analysis of the SWAT model to spatial distribution of precipitation in streamflow simulation in an Arctic watershed. IOP Conference Series: Earth and Environmental Science (EES). 2020;581:1-9 FRIDAID 1856830 https://doi.org/10.1088/1755-1315/581/1/012025 1755-1307 1755-1315 https://hdl.handle.net/10037/20025 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.1088/1755-1315/581/1/012025 |
container_title |
IOP Conference Series: Earth and Environmental Science |
container_volume |
581 |
container_start_page |
012025 |
_version_ |
1766300193511178240 |