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Project 1.02: Provision of Application-oriented and Evaluated Climate Projection Data

Dr Florian Imbery, DWD,
florian.imbery@dwd.de

Dipl.-Met. (Graduate Meteorologist) Sabrina Wehring, DWD,
sabrina.wehring@dwd.de

Dipl.-Met. (Graduate Meteorologist) Joachim Namyslo, DWD,
Tel. +49 (0) 69/8062-2967, joachim.namyslo@dwd.de



Objectives and Procedural Steps

The objective of this project is to provide the available regional climate projections for the KLIWAS regions with respect to the meteorological data that is of importance for the project as a whole. This data will be edited in a user-oriented form by means of statistically based analytical processes in accordance with the requirements of each working model. In addition, we will evaluate the results from the regional climate projections of the existing combinations of global and downstream regional climate models. The following procedural steps have been planned:


The formation of ensembles

  • gathering and compilation of climate projection time series available for the KLIWAS region which vary sufficiently in terms of global driving, the regional models used and the emissions scenarios for the generation of an ensemble that will form the basis for the probabilistic evaluation of hydrological working models
  • validation of the down-scaling method for measured data, REGNIE, particularly for the evaluation of hydro-meteorological input data from control periods of climate projections
  • parameter-dependent continuing development of the downscaling methods used


Post-processing

  • derivation of standardised post-processing methods for maintaining the consistency of the meteorological parameters among themselves
  • derivation of standardised post-processing methods for maintaining the temporal (daily) and spatial (dependence on height, continentality) consistency of the parameters under study
  • derivation of standardised post-processing methods for the congruent transfer of the grid data that has been produced to the relevant river catchment areas
  • evaluation of the simulation quality of the regional climate models for all hydro-meteorologically relevant parameters
  • analysis of the extreme value behaviour of the hydro-meteorologically relevant parameters with an emphasis on drought and flooding

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