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A gridded dataset of hourly precipitation in Germany: Its construction, climatology and application

Paulat, Marcus und Frei, Christoph und Hagen, Martin und Wernli, Heini (2008) A gridded dataset of hourly precipitation in Germany: Its construction, climatology and application. Meteorologische Zeitschrift, 17, Seiten 719-732. DOI: 10.1127/0941-2948/2008/0332.

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Offizielle URL: http://www.dmg-ev.de/gesellschaft/publikationen/zeitschrift.htm

Kurzfassung

A so-called disaggregation technique is used to combine daily rain gauge measurements and hourly radar composites in order to produce a dataset of hourly precipitation in Germany on a grid with a horizontal resolution of 7 km for the years 2001-2004. This state-of-the-art observation-based dataset of precipitation has a high temporal and spatial resolution and will be extended continuously during the upcoming years. Limitations of its quality, which are due to intrinsic problems with observing the highly variable field of precipitation, are discussed and quantified where possible. The dataset offers novel possibilities to investigate the climatology of precipitation and to verify precipitation forecasts from numerical weather prediction models. The frequency of hourly precipitation in Germany above the detection limit of 0.1 mm/h amounts to 10-30 % in winter, with clear maxima in the mountainous regions, and to 6-20 % in summer, when the spatial variability is considerably reduced. The 95th percentile of the frequency distribution is significantly larger in summer than in winter, with local maxima in the mountainous regions in winter, and in the Alpine Foreland and upper Elbe catchment in summer. It is shown that the operational model COSMO-7 with a horizontal resolution of 7 km captures the geographical distribution of the frequency and of the 95th percentile of hourly precipitation in Germany very well. In contrast, the model is not able to realistically simulate the diurnal cycle of precipitation in any region of Germany during summer.

Dokumentart:Zeitschriftenbeitrag
Titel:A gridded dataset of hourly precipitation in Germany: Its construction, climatology and application
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Paulat, MarcusUniv. Mainz
Frei, ChristophMeteo Schweiz, Zürich, CH
Hagen, MartinNICHT SPEZIFIZIERT
Wernli, HeiniUniv. Mainz
Datum:2008
Erschienen in:Meteorologische Zeitschrift
Referierte Publikation:Ja
In Open Access:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:17
DOI :10.1127/0941-2948/2008/0332
Seitenbereich:Seiten 719-732
Status:veröffentlicht
Stichwörter:Disaggregierung, Niederschlagsdatensatz
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Atmosphären- und Klimaforschung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Wolkenphysik und Verkehrsmeteorologie
Hinterlegt von: Jana Freund
Hinterlegt am:12 Jan 2009
Letzte Änderung:20 Okt 2014 14:33

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