The value of weather radar data for the estimation of design storms - an analysis for the Hannover region

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Haberlandt, Uwe; Berndt, Christian: The value of weather radar data for the estimation of design storms - an analysis for the Hannover region. In: Proceedings of the International Association of Hydrological Sciences 373 (2016), S. 81-85. DOI: https://doi.org/10.5194/piahs-373-81-2016

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/1175

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Sum total of downloads: 189




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Abstract: 
Pure radar rainfall, station rainfall and radar-station merging products are analysed regarding extreme rainfall frequencies with durations from 5 min to 6 h and return periods from 1 year to 30 years. Partial duration series of the extremes are derived from the data and probability distributions are fitted. The performance of the design rainfall estimates is assessed based on cross validations for observed station points, which are used as reference. For design rainfall estimation using the pure radar data, the pixel value at the station location is taken; for the merging products, spatial interpolation methods are applied. The results show, that pure radar data are not suitable for the estimation of extremes. They usually lead to an overestimation compared to the observations, which is opposite to the usual behaviour of the radar rainfall. The merging products between radar and station data on the other hand lead usually to an underestimation. They can only outperform the station observations for longer durations. The main problem for a good estimation of extremes seems to be the poor radar data quality.
License of this version: CC BY 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Fakultät für Bauingenieurwesen und Geodäsie

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pos. country downloads
total perc.
1 image of flag of Germany Germany 140 74.07%
2 image of flag of China China 11 5.82%
3 image of flag of Indonesia Indonesia 6 3.17%
4 image of flag of Canada Canada 4 2.12%
5 image of flag of South Africa South Africa 3 1.59%
6 image of flag of United States United States 3 1.59%
7 image of flag of Taiwan Taiwan 3 1.59%
8 image of flag of United Kingdom United Kingdom 2 1.06%
9 image of flag of Australia Australia 2 1.06%
10 image of flag of Austria Austria 2 1.06%
    other countries 13 6.88%

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