Identifying climate analogues for precipitation extremes for Denmark based on RCM simulations from the ENSEMBLES database

Karsten Arnbjerg-Nielsen, S. G. Funder, H. Madsen

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Abstract

Climate analogues, also denoted Space-For-Time, may be used to identify regions where the present climatic conditions resemble conditions of a past or future state of another location or region based on robust climate variable statistics in combination with projections of how these statistics change over time. The study focuses on assessing climate analogues for Denmark based on current climate data set (E-OBS) observations as well as the ENSEMBLES database of future climates with the aim of projecting future precipitation extremes. The local present precipitation extremes are assessed by means of intensity-duration-frequency curves for urban drainage design for the relevant locations being France, the Netherlands, Belgium, Germany, the United Kingdom, and Denmark. Based on this approach projected increases of extreme precipitation by 2100 of 9 and 21% are expected for 2 and 10 year return periods, respectively. The results should be interpreted with caution as the best region to represent future conditions for Denmark is the coastal areas of Northern France, for which only little information is available with respect to present precipitation extremes.
Original languageEnglish
JournalWater Science and Technology
Volume71
Issue number3
Pages (from-to)418-425
Number of pages8
ISSN0273-1223
DOIs
Publication statusPublished - 2015

Keywords

  • Climate analogue
  • Climate change
  • Design
  • Extreme precipitaion
  • Urban drainage

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