Future Flows Climate: an ensemble of 1-km climate change projections for hydrological application in Great Britain

Earth System Science Data

G. Watts²  T. Lafon³  G. Buys⁴  H. Davies³  L. Boelee³  S. Crooks³  G. Goodsell³  J. Williamson³  D. Morris³  S. Dadson¹  C. Prudhomme³ 

[1] School of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, UK;Evidence Directorate: Scientific and Evidence Services, Horizon House, Deanery Road, Bristol BS1 5AH, UK;Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, OXON, OX10 8BB, UK;British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET, UK

Others  :  983973
DOI  :  doi:10.5194/essd-4-143-2012

【 摘 要 】

The dataset Future Flows Climate was developed as part of the project ''Future Flows and Groundwater Levels''to provide a consistent set of climate change projections for the whole of Great Britainat both space and time resolutions appropriate for hydrological applications, and toenable climate change uncertainty and climate variability to be accounted for inthe assessment of their possible impacts on the environment.Future Flows Climate is derived from the Hadley Centre's ensemble projection HadRM3-PPEthat is part of the basis of UKCP09 and includes projections in available precipitation (wateravailable to hydrological processes after snow and ice storages have been accounted for) and potentialevapotranspiration. It corresponds to an 11-member ensemble of transient projections from January 1950to December 2098, each a single realisation from a different variant of HadRM3. Data are provided on a1-km grid over the HadRM3 land areas at a daily (available precipitation) and monthly (PE) time step as netCDF files.Because systematic biases in temperature and precipitation were found between HadRM3-PPEand gridded temperature and precipitation observations for the 1962–1991 period, a monthly biascorrection procedure was undertaken, based on a linear correction for temperature and a quantile-mappingcorrection (using the gamma distribution) for precipitation followed by a spatial downscaling.Available precipitation was derived from the bias-corrected precipitation and temperature timeseries using a simple elevation-dependant snow-melt model. Potential evapotranspiration timeseries were calculated for each month using the FAO-56 Penman-Monteith equations and bias-correctedtemperature, cloud cover, relative humidity and wind speed from HadRM3-PPE along with latitudeof the grid and the day of the year.Future Flows Climate is freely available for non-commercial use under certain licensingconditions. It is the dataset used to generate Future Flows Hydrology, an ensemble of transientprojections of daily river flow and monthly groundwater time series for representative riverbasins and boreholes in Great Britain.doi:10.5285/bad1514f-119e-44a4-8e1e-442735bb9797.

【 授权许可】

   
© Author(s) 2012. This work is distributedunder the Creative Commons Attribution 3.0 License.