A dataset of historical and future hydrologic response to climate change pdf

Posted on Wednesday, May 12, 2021 1:53:10 AM Posted by Joann L. - 12.05.2021 and pdf, edition pdf 1 Comments

a dataset of historical and future hydrologic response to climate change pdf

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Assessment of climate change impacts on water resources of the Purus Basin in the southwestern Amazon. Knowledge about water resources is critical for climate adaptation in face of long-term changes and more frequent extreme events occurrence.

The impact of climate change and glacier mass loss on the hydrology in the Mont-Blanc massif

Recent changes in the Arctic region climate Wanishsakpong et al. Changes in streamflow discharge Mendoza et al. An improved understanding of hydrological change is necessary to more effectively adapt and mitigate the potential impacts of climate change; however, given the complexity of the environment and the uncertainty associated with climate projection, this has represented a great scientific challenge. Climate projections from global circulation models GCMs agree on a warmer and wetter Arctic by the end of the century Kattsov et al. Because of problems in GCM representations of regional or local surface weather, higher-resolution tens of kilometers regional climate models RCMs are used to dynamically downscale GCMs; however, large-scale RCMs still fail to represent surface weather, particularly precipitation in areas with complex topography, deep convection, or extreme events Prein et al. Downscaling techniques are classified into statistical and dynamical approaches, the former using empirical relationships between observed and simulated climate and the latter requiring the implementation of a high-resolution climate model Maraun et al. Dynamical downscaling produces physically connected weather variables Fowler et al.

Climate change has significant implications on water resources and freshwater ecosystems Eum et al. Regional climate models RCMs and macroscale hydrologic models MHMs are common approaches to investigate the effects of projected climate changes on local hydrological regimes. RCMs are able to simulate detailed regional atmospheric and terrestrial processes Denis et al. The Athabasca River is the longest undammed river in the Canadian Prairies, and the potential effects of climate change on its hydrological cycles have been implicated for water scarcities, wild fires, flooding, and droughts Cheng et al. Further, annual flows of the Athabasca River have been shown to be linked with historic climate conditions across this region, a trend that is expected to continue into the future Edwards et al. A better understanding how climate change will affect the spatial and temporal variability of hydrologic regimes in prairie river basins, such as the Athabasca, is needed in order to support proper mitigation and adaptation strategies IPCC ; Maurer et al.

Special issue: Water, ecosystem, cryosphere, and climate data from the interior Data description paper 19 Mar Cold region hydrology is very sensitive to the impacts of climate warming. Impacts of warming over recent decades in western Canada include glacier retreat, permafrost thaw, and changing patterns of precipitation, with an increased proportion of winter precipitation falling as rainfall and shorter durations of snow cover, as well as consequent changes in flow regimes. Future warming is expected to continue along these lines. Physically realistic and sophisticated hydrological models driven by reliable climate forcing can provide the capability to assess hydrological responses to climate change.

Hydrological impacts of climate change on a data-scarce Greek catchment

Journal of Water and Climate Change 1 March ; 10 1 : 63— The changing climate has raised significant concerns for water resources, especially on a watershed scale. In this study, the downscaled global circulation model GCM products were further bias corrected and evaluated for the period of — The results of this study show: 1 the Parameter—elevation Regressions on Independent Slopes Model PRISM products offer a reliable replacement for limited observations for bias correction using quantile mapping QM technique; 2 average increases of 2. For management of local water resources, this study provides a better understanding of variations in the streamflow rate and timing to a potential climate change in the study area as well as corresponding uncertainties in the estimation processes.

Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. By , the impact of climate change on the cryosphere and hydrosphere in the Alps is expected to lead to a decrease in annual river discharge. For the first time for this region, we have forced a hydrological model with output from an ice-dynamical glacier model and 16 downscaled climate projections, under RCP4.

Wetlands are globally important ecosystems that provide critical services for natural communities and human society. Montane wetland ecosystems are expected to be among the most sensitive to changing climate, as their persistence depends on factors directly influenced by climate e. Despite their importance and climate sensitivity, wetlands tend to be understudied due to a lack of tools and data relative to what is available for other ecosystem types. Here, we develop and demonstrate a new method for projecting climate-induced hydrologic changes in montane wetlands. Using observed wetland water levels and soil moisture simulated by the physically based Variable Infiltration Capacity VIC hydrologic model, we developed site-specific regression models relating soil moisture to observed wetland water levels to simulate the hydrologic behavior of four types of montane wetlands ephemeral, intermediate, perennial, permanent wetlands in the U. Pacific Northwest. The hybrid models captured observed wetland dynamics in many cases, though were less robust in others.


climate changes on water balance in the future were similar to the variation trend () [16] used SWAT to evaluate hydrological responses to climate variations and The observed climate datasets over 44 years (–) were used as the Historical and future changes in annual precipitation and.


Hydrologic Impacts of Ensemble-RCM-Projected Climate Changes in the Athabasca River Basin, Canada

Golam Rabbani Fahad, Md. Alfi Hasan, G. Journal of Water and Climate Change 1 September ; 9 3 : — Climate change will be expected to alter the hydrological cycles and the flow regime of these basins. Assessment of the fresh water availability of the Brahmaputra Basin in the future under climate change condition is crucial for both society and the ecosystem.

This paper demonstrates a climate change impact study on the hydrological process of a data-scarce Greek watershed. The ERA-Interim reanalysis climate data regarding the period from to were used for the historical simulation of the watershed. The ArcSWAT simulated data were evaluated against the observed discharge data for the periods with the available data. Based on the results, the increase in the minimum and the maximum temperature contributed to an increase in the actual evapotranspiration and the surface runoff. In contrast, the temperature increase caused a reduction in the infiltration.

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  • Conceived and designed the experiments: SHM. Ritemhari - 14.05.2021 at 18:05

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