umu.sePublications
Change search
ReferencesLink to record
Permanent link

Direct link
Space-time structure of extreme precipitation in Europe over the last century
Umeå University, Faculty of Social Sciences, Center for Environmental and Resource Economics (CERE). Umeå University, Faculty of Social Sciences, Umeå School of Business and Economics (USBE), Economics.
2015 (English)In: International Journal of Climatology, ISSN 0899-8418, E-ISSN 1097-0088, Vol. 35, no 8, 1749-1760 p.Article in journal (Refereed) PublishedText
Abstract [en]

We investigate the space-time structure of extreme precipitation in Europe over the last century, using daily rainfall data from the European Climate Assessment & Dataset (ECA&D) archive. The database includes 267 stations with records longer than 100 years. In the winter season (October to March), for each station, two classes of daily rainfall amount values are selected that, respectively, exceed the 90th and 95th percentile of daily rainfall amount over all the 100 years. For each class, and at each location, an annual time series of the frequency of exceedance and of the total precipitation, defined respectively as the number of days the rainfall threshold (90th and 95th percentiles) is exceeded and total precipitation on days when the percentile is exceeded, are developed. Space-time structure of the frequency and total precipitation time series at the different locations are then pursued using multivariate time and frequency domain methods. The identified key trends and organized spectral modes are linked to well-known climate indices, as North Atlantic Oscillation (NAO) and El Nino Southern Oscillation (ENSO). The spectra of the leading principal component of frequency of exceedance and of total precipitation have a peak with a 5-year period that is significant at the 5% level. These are also significantly correlated with ENSO series with this period. The spectrum of total rainfall is significant at the 10% level with a period of similar to 8 years. This appears to be significantly correlated to the NAO index at this period. Thus, a decomposition of both secular trends and quasi-periodic behaviour in extreme daily rainfall is provided.

Place, publisher, year, edition, pages
2015. Vol. 35, no 8, 1749-1760 p.
Keyword [en]
extreme precipitation, hydrology, frequency analysis, atmospheric teleconnections
National Category
Meteorology and Atmospheric Sciences
Identifiers
URN: urn:nbn:se:umu:diva-120319DOI: 10.1002/joc.4116ISI: 000357737000004OAI: oai:DiVA.org:umu-120319DiVA: diva2:928657
Available from: 2016-05-16 Created: 2016-05-16 Last updated: 2016-05-16Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Lall, UpmanuKrishnamurthy, Chandra Kiran B.
By organisation
Center for Environmental and Resource Economics (CERE)Economics
In the same journal
International Journal of Climatology
Meteorology and Atmospheric Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 7 hits
ReferencesLink to record
Permanent link

Direct link