Technical Reports


  • WATCH Technical Report Number 3: Uncertainty in water budgets of the 20th century due to representation of impact of CO2 enrichment There is an ongoing debate about the potential effects that increasing atmospheric CO2 concentration already had on the global water cycle and on river discharge in particular. To contribute to this debate, one applied the global vegetation and hydrology model LPJmL for quantifying the individual contribution of risen CO2 concentration relative to the contributions of changing precipitation, temperature, land use and irrigation to worldwide trends in river discharge (Q) over the past century. The results have been put together in a concise scientific paper, but a a brief summary of the study is provided in this report.
    Dieter Gerten (PIK), Nicola Gedney (UK Met Office), August 18, 2008

  • WATCH Technical Report Number 2: Poor man's re-analysis over Europe This report presents the first of two re-analysis data sets for the WATCH project using a poor man’s re-analysis on a 0.12 degree grid on a limited domain covering western Europe.
    Peter Berg, Jens Hesselbjerg Christensen (DMI), August 07, 2008

  • WATCH Technical Report Number 1: First results from intercomparison of surface water availability modules This report presents the first results of an intercomparison of approaches to estimate water resources and their stresses across the global domain, focusing on the hydrological component of global-scale water resources assessments.
    Frank Voß, Joseph Alcamo (CESR), June 25, 2008

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