Long-range streamflow prediction using a distributed hydrological model in a snowfed watershed

<p>Inadequate planning of spring snowmelt discharge can lead to wastage of water resources for various purposes such as hydropower and lead to reduced capacity of the dams to control floods during rainy season. In this research we analyze how much can the predictive skill of long-range forecas...

Full description

Bibliographic Details
Main Authors: A. Moiz, A. Kawasaki
Format: Article
Language:English
Published: Copernicus Publications 2024-04-01
Series:Proceedings of the International Association of Hydrological Sciences
Online Access:https://piahs.copernicus.org/articles/386/217/2024/piahs-386-217-2024.pdf
_version_ 1797201127590068224
author A. Moiz
A. Kawasaki
author_facet A. Moiz
A. Kawasaki
author_sort A. Moiz
collection DOAJ
description <p>Inadequate planning of spring snowmelt discharge can lead to wastage of water resources for various purposes such as hydropower and lead to reduced capacity of the dams to control floods during rainy season. In this research we analyze how much can the predictive skill of long-range forecasts be improved by using a distributed hydrological model. We used the Water and Energy Budget-based Distributed Hydrological Model with improved snow physics (WEB-DHM-S) for generating long-range forecasts with a lead time of up to 3 months for the case of Kurobe River Basin in Japan. The predictive skills of two sets of simulations were compared (i) climatology and (ii) ensemble stream flow prediction (ESP). In the case of ESP, the initial conditions of WEB-DHM-S are updated using real-time datasets from Radar-AMeDAS, AMeDAS and JRA55. We found that the model initial conditions are particularly important during the spring snowmelt season and can improve the forecast predictive skills quite significantly compared with the climatology.</p>
first_indexed 2024-04-24T07:42:36Z
format Article
id doaj.art-94d03f1000024ea0822f9426c146db51
institution Directory Open Access Journal
issn 2199-8981
2199-899X
language English
last_indexed 2024-04-24T07:42:36Z
publishDate 2024-04-01
publisher Copernicus Publications
record_format Article
series Proceedings of the International Association of Hydrological Sciences
spelling doaj.art-94d03f1000024ea0822f9426c146db512024-04-19T10:03:28ZengCopernicus PublicationsProceedings of the International Association of Hydrological Sciences2199-89812199-899X2024-04-0138621722210.5194/piahs-386-217-2024Long-range streamflow prediction using a distributed hydrological model in a snowfed watershedA. MoizA. Kawasaki<p>Inadequate planning of spring snowmelt discharge can lead to wastage of water resources for various purposes such as hydropower and lead to reduced capacity of the dams to control floods during rainy season. In this research we analyze how much can the predictive skill of long-range forecasts be improved by using a distributed hydrological model. We used the Water and Energy Budget-based Distributed Hydrological Model with improved snow physics (WEB-DHM-S) for generating long-range forecasts with a lead time of up to 3 months for the case of Kurobe River Basin in Japan. The predictive skills of two sets of simulations were compared (i) climatology and (ii) ensemble stream flow prediction (ESP). In the case of ESP, the initial conditions of WEB-DHM-S are updated using real-time datasets from Radar-AMeDAS, AMeDAS and JRA55. We found that the model initial conditions are particularly important during the spring snowmelt season and can improve the forecast predictive skills quite significantly compared with the climatology.</p>https://piahs.copernicus.org/articles/386/217/2024/piahs-386-217-2024.pdf
spellingShingle A. Moiz
A. Kawasaki
Long-range streamflow prediction using a distributed hydrological model in a snowfed watershed
Proceedings of the International Association of Hydrological Sciences
title Long-range streamflow prediction using a distributed hydrological model in a snowfed watershed
title_full Long-range streamflow prediction using a distributed hydrological model in a snowfed watershed
title_fullStr Long-range streamflow prediction using a distributed hydrological model in a snowfed watershed
title_full_unstemmed Long-range streamflow prediction using a distributed hydrological model in a snowfed watershed
title_short Long-range streamflow prediction using a distributed hydrological model in a snowfed watershed
title_sort long range streamflow prediction using a distributed hydrological model in a snowfed watershed
url https://piahs.copernicus.org/articles/386/217/2024/piahs-386-217-2024.pdf
work_keys_str_mv AT amoiz longrangestreamflowpredictionusingadistributedhydrologicalmodelinasnowfedwatershed
AT akawasaki longrangestreamflowpredictionusingadistributedhydrologicalmodelinasnowfedwatershed