Natural streamflow simulation for two largest river basins in Poland: a baseline for identification of flow alterations
The objective of this study was to apply a previously developed large-scale and high-resolution SWAT model of the Vistula and the Odra basins, calibrated with the focus of natural flow simulation, in order to assess the impact of three different dam reservoirs on streamflow using the Indicators o...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2016-05-01
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| Series: | Proceedings of the International Association of Hydrological Sciences |
| Online Access: | https://www.proc-iahs.net/373/101/2016/piahs-373-101-2016.pdf |
| _version_ | 1818572322577055744 |
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| author | M. Piniewski M. Piniewski |
| author_facet | M. Piniewski M. Piniewski |
| author_sort | M. Piniewski |
| collection | DOAJ |
| description | The objective of this study was to apply a previously developed large-scale
and high-resolution SWAT model of the Vistula and the Odra basins, calibrated
with the focus of natural flow simulation, in order to assess the impact of
three different dam reservoirs on streamflow using the Indicators of
Hydrologic Alteration (IHA). A tailored spatial calibration approach was
designed, in which calibration was focused on a large set of relatively small
non-nested sub-catchments with semi-natural flow regime. These were
classified into calibration clusters based on the flow statistics similarity.
After performing calibration and validation that gave overall positive
results, the calibrated parameter values were transferred to the remaining
part of the basins using an approach based on hydrological similarity of
donor and target catchments. The calibrated model was applied in three case
studies with the purpose of assessing the effect of dam reservoirs
(Włocławek, Siemianówka and Czorsztyn Reservoirs) on streamflow
alteration. Both the assessment based on gauged streamflow (Before-After
design) and the one based on simulated natural streamflow showed large
alterations in selected flow statistics related to magnitude, duration, high
and low flow pulses and rate of change. Some benefits of using a large-scale
and high-resolution hydrological model for the assessment of streamflow
alteration include: (1) providing an alternative or complementary approach to
the classical Before-After designs, (2) isolating the climate variability
effect from the dam (or any other source of alteration) effect, (3) providing
a practical tool that can be applied at a range of spatial scales over large
area such as a country, in a uniform way. Thus, presented approach can be
applied for designing more natural flow regimes, which is crucial for river
and floodplain ecosystem restoration in the context of the European Union's
policy on environmental flows. |
| first_indexed | 2024-12-14T18:55:35Z |
| format | Article |
| id | doaj.art-627d8418fed44c748241868d54f08f44 |
| institution | Directory Open Access Journal |
| issn | 2199-8981 2199-899X |
| language | English |
| last_indexed | 2024-12-14T18:55:35Z |
| publishDate | 2016-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Proceedings of the International Association of Hydrological Sciences |
| spelling | doaj.art-627d8418fed44c748241868d54f08f442022-12-21T22:51:06ZengCopernicus PublicationsProceedings of the International Association of Hydrological Sciences2199-89812199-899X2016-05-0137310110710.5194/piahs-373-101-2016Natural streamflow simulation for two largest river basins in Poland: a baseline for identification of flow alterationsM. Piniewski0M. Piniewski1Warsaw University of Life Sciences, Warsaw, PolandPotsdam Institute of Climate Impact Research, Potsdam, GermanyThe objective of this study was to apply a previously developed large-scale and high-resolution SWAT model of the Vistula and the Odra basins, calibrated with the focus of natural flow simulation, in order to assess the impact of three different dam reservoirs on streamflow using the Indicators of Hydrologic Alteration (IHA). A tailored spatial calibration approach was designed, in which calibration was focused on a large set of relatively small non-nested sub-catchments with semi-natural flow regime. These were classified into calibration clusters based on the flow statistics similarity. After performing calibration and validation that gave overall positive results, the calibrated parameter values were transferred to the remaining part of the basins using an approach based on hydrological similarity of donor and target catchments. The calibrated model was applied in three case studies with the purpose of assessing the effect of dam reservoirs (Włocławek, Siemianówka and Czorsztyn Reservoirs) on streamflow alteration. Both the assessment based on gauged streamflow (Before-After design) and the one based on simulated natural streamflow showed large alterations in selected flow statistics related to magnitude, duration, high and low flow pulses and rate of change. Some benefits of using a large-scale and high-resolution hydrological model for the assessment of streamflow alteration include: (1) providing an alternative or complementary approach to the classical Before-After designs, (2) isolating the climate variability effect from the dam (or any other source of alteration) effect, (3) providing a practical tool that can be applied at a range of spatial scales over large area such as a country, in a uniform way. Thus, presented approach can be applied for designing more natural flow regimes, which is crucial for river and floodplain ecosystem restoration in the context of the European Union's policy on environmental flows.https://www.proc-iahs.net/373/101/2016/piahs-373-101-2016.pdf |
| spellingShingle | M. Piniewski M. Piniewski Natural streamflow simulation for two largest river basins in Poland: a baseline for identification of flow alterations Proceedings of the International Association of Hydrological Sciences |
| title | Natural streamflow simulation for two largest river basins in Poland: a baseline for identification of flow alterations |
| title_full | Natural streamflow simulation for two largest river basins in Poland: a baseline for identification of flow alterations |
| title_fullStr | Natural streamflow simulation for two largest river basins in Poland: a baseline for identification of flow alterations |
| title_full_unstemmed | Natural streamflow simulation for two largest river basins in Poland: a baseline for identification of flow alterations |
| title_short | Natural streamflow simulation for two largest river basins in Poland: a baseline for identification of flow alterations |
| title_sort | natural streamflow simulation for two largest river basins in poland a baseline for identification of flow alterations |
| url | https://www.proc-iahs.net/373/101/2016/piahs-373-101-2016.pdf |
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