The skill of ECMWF precipitation and temperature predictions in the Danube basin as forcings of hydrological models

Florian Pappenberger*, Roberto Buizza

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

21 Citations (Scopus)

Abstract

In this paper the suitability of ECMWF forecasts for hydrological applications is evaluated. This study focuses on three spatial scales: the upper Danube (which is upstream of Bratislava, Slovakia), the entire Danube catchment, and the whole of Europe. Two variables, 2-m temperature and total precipitation, are analyzed. The analysis shows that precipitation forecasts follow largely in pattern the observations. The timing of the peaks between forecasted and observed precipitation and temperature is good although precipitation amounts are often underestimated. The catchment scale influences the skill scores significantly. Small catchments exhibit a larger variance as well as larger extremes. A water balance analysis suggest a 10% underestimation by the ensemble mean and an overestimation by the high-resolution forecast over the past few years. Precipitation and temperature predictions are skillful up to days 5-7. Forecasts accumulated over a longer time frame are largely more skillful than forecasts accumulated over short time periods. cr 2009 American Meteorological Society.

Original languageEnglish
Pages (from-to)749-766
Number of pages18
JournalWeather and Forecasting
Volume24
Issue number3
DOIs
Publication statusPublished - 1 Jun 2009

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