Model based estimation of climate change impacts on the drainage demand of low lying coastal areas in Northwest Germany along the North Sea

Journal of Hydrology Regional Studies, Год журнала: 2023, Номер 48, С. 101451 - 101451

Опубликована: Июнь 16, 2023

The Northwest German part of the North Sea coast Low lying coastal areas are highly threatened by climate change. This is due to rising sea level and changing water balance caused Adaptation protection inland drainage change requires precise predictions future conditions. While information on rise globally available, projections need be specific for regions where often no discharge data available. To serve this demand, a model based scenario analysis was carried out four boards in Germany. These regional organisations responsible surface regulation marsh areas. A calibrated validated against pumping stations tidal gates. Subsequently, impacts runoff generation were estimated. results indicate that expected increase significantly wet season, same as frequency periods with large volumes. impact signal consistent over all investigated board areas, indicating dominates spatial variability soil properties land use. emphasize necessity consider adjusting management. can directly used adaptation planning processes, taking into account underlying uncertainties.

Язык: Английский

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Characterising flow regimes in a semi-arid region with limited data availability: The Nil Wadi case study (Algeria)

Journal of Hydrology Regional Studies, Год журнала: 2022, Номер 41, С. 101062 - 101062

Опубликована: Март 28, 2022

Mediterranean catchment in Algeria A procedure to characterise the flow regimes of non-perennial rivers regions with limited data availability was defined. The specific aims were adapt Soil and Water Assessment Tool (SWAT) for simulating time series daily streamflow a basin temporary river network regime number reaches. An inexpensive monitoring program implemented collect basic dataset calibrate hydrological model. Regional databases, surveys, images from Google Earth used integrate available set up Flow characterised by using metrics describing aquatic phases (AS) (flow, pool, dry permanence). This study provides contribution unsolved question management under climate. Nil Wadi is perennial regimes. analysed reaches classified as "intermittent-pool" "intermittent-dry", they showed "alternate-fluent" (AF) phase upstream middle course, gradient AF "fluent-stagnant" downstream. AS "oligorheic" (low or pools connected) "arheic" (pools disconnected) mainly occurred May October. "Dry" condition that includes ASs "hyporheic" "edaphic" summer.

Язык: Английский

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Setting an ecological flow regime in a Mediterranean basin with limited data availability: The Locone River case study (S-E Italy)

Ecohydrology & Hydrobiology, Год журнала: 2023, Номер 23(3), С. 346 - 360

Опубликована: Март 23, 2023

Язык: Английский

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Increasing Trends in Discharge Maxima of a Mediterranean River during Early Autumn

Water, Год журнала: 2023, Номер 15(6), С. 1022 - 1022

Опубликована: Март 8, 2023

Climate change has influenced the discharge regime of rivers during past decades. This study aims to reveal climate-induced interannual trends average annual and maxima in a Mediterranean river from 1981 2017. To this aim, Pinios basin was selected as area because it is one most productive agricultural areas Greece. Due lack sufficient measurements, simulated daily discharges for three upstream sub-basins were used. The trend analysis based on multi-faceted approach using Mann-Kendall tests, Quantile-Kendall plots, generalized additive models (GAMs) fitting non-linear trends. methodological proposed can be applied anywhere investigate climate effects. results indicated that decreased 1980s, reaching minimum early 1990s, then increased middle 1990s 2017, approximately levels 1980s. A more in-depth unraveled September characterized by statistically significant increasing two sub-basins. These are anthropogenically low affected, thus highlighting clear impact may have critical socioeconomic implications basin.

Язык: Английский

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A framework to assess future water-resource under climate change in northern Morocco using hydro-climatic modelling and water-withdrawal scenarios

Journal of Hydrology Regional Studies, Год журнала: 2023, Номер 48, С. 101465 - 101465

Опубликована: Июль 8, 2023

The Bas-Loukkos catchment, a Mediterranean catchment in northern Morocco exposed to growing water withdrawal caused mainly by agricultural development. For adaptation climate change, managers have consider the high and various uncertainties. To assess impacts of change on projected resources, this study aimed develop smart analysis framework provide scientific information exploring complexity many projections combined with hydrological models. Uncertainties were quantified using 13 pair-wise combinations 5 regional models forced 4 global under two emissions scenarios (RCP4.5 RCP8.5), data without bias correction (using empirical quantile mapping), sets GR2M model parameters corresponding different precipitation conditions. Budyko hypothesis was used analyse effects resources according water-withdrawal scenarios. Climate been analyzed over three periods: short-term [2020–2040], medium-term [2041–2060] long-term [2081–2100]. Results from all simulations indicate that, long term (2081–2100), discharge will decrease ca. 21–38% 50–71%, respectively, compared reference period (1981–2005). Consequently, decline require management strategies adapt future climatic conditions demand.

Язык: Английский

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Impacts of land use and climate change on runoff in the Shaying River Basin based on SWAT model

Limnology, Год журнала: 2024, Номер 25(2), С. 155 - 170

Опубликована: Янв. 22, 2024

Язык: Английский

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Reply on RC3

Опубликована: Янв. 6, 2025

Abstract. This study aims to assess the changes in intermittency of river flows across France context climate change. Projection flow intermittence are derived from results Explore2 project, which is latest national that proposes a wide range potential hydrological futures for 21st century. The multi-model approach developed within project enable characterize uncertainties future intermittence. Combined with discrete observations states, projections post-processed compute daily probability (PFI) on each element partition hydroecoregions (HER2). post-processing consists calibrating logistic regressions between historical states Observatoire National des Étiages (ONDE) network and data simulated by models (HMs) involved projected Safran reanalysis as inputs. After calibration, these used PFIs whole century, based simulations five HMs driven up 17 under RCP 2.6, 4.5, 8.5 change scenarios. show good agreement among regarding increase 4.5 8.5. mean PFI July October, shifts first last days when exceeds 20 %, suggest gradual intensification extension dry spells throughout southern regions likely experience greater increases runoff than northern regions. Uncertainty France, due variability rainfall. Mountainous such Alps Pyrenees dynamics snowmelt groundwater recharge, could lead their regimes.

Язык: Английский

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Reply on RC2

Опубликована: Янв. 6, 2025

Abstract. This study aims to assess the changes in intermittency of river flows across France context climate change. Projection flow intermittence are derived from results Explore2 project, which is latest national that proposes a wide range potential hydrological futures for 21st century. The multi-model approach developed within project enable characterize uncertainties future intermittence. Combined with discrete observations states, projections post-processed compute daily probability (PFI) on each element partition hydroecoregions (HER2). post-processing consists calibrating logistic regressions between historical states Observatoire National des Étiages (ONDE) network and data simulated by models (HMs) involved projected Safran reanalysis as inputs. After calibration, these used PFIs whole century, based simulations five HMs driven up 17 under RCP 2.6, 4.5, 8.5 change scenarios. show good agreement among regarding increase 4.5 8.5. mean PFI July October, shifts first last days when exceeds 20 %, suggest gradual intensification extension dry spells throughout southern regions likely experience greater increases runoff than northern regions. Uncertainty France, due variability rainfall. Mountainous such Alps Pyrenees dynamics snowmelt groundwater recharge, could lead their regimes.

Язык: Английский

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Quantifying the Impacts of Climate Change and Human Interventions on Flow Alterations in a Tropical River

Water Resources Management, Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

Язык: Английский

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Impact of Climate Change on River Flow, Using a Hybrid Model of LARS_WG and LSTM: A Case Study in the Kashkan Basin

Results in Engineering, Год журнала: 2025, Номер unknown, С. 104956 - 104956

Опубликована: Апрель 1, 2025

Язык: Английский

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