Change search
ReferencesLink to record
Permanent link

Direct link
Quantifying sensitivity to droughts: an experimental modeling approach
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.
2015 (English)In: Hydrology and Earth System Sciences, ISSN 1027-5606, E-ISSN 1607-7938, Vol. 19, no 3, 1371-1384 p.Article in journal (Refereed) Published
Abstract [en]

Meteorological droughts like those in summer 2003 or spring 2011 in Europe are expected to become more frequent in the future. Although the spatial extent of these drought events was large, not all regions were affected in the same way. Many catchments reacted strongly to the meteorological droughts showing low levels of streamflow and groundwater, while others hardly reacted. Also, the extent of the hydrological drought for specific catchments was different between these two historical events due to different initial conditions and drought propagation processes. This leads to the important question of how to detect and quantify the sensitivity of a catchment to meteorological droughts. To assess this question we designed hydrological model experiments using a conceptual rainfall-runoff model. Two drought scenarios were constructed by selecting precipitation and temperature observations based on certain criteria: one scenario was a modest but constant progression of drying based on sorting the years of observations according to annual precipitation amounts. The other scenario was a more extreme progression of drying based on selecting months from different years, forming a year with the wettest months through to a year with the driest months. Both scenarios retained the observed intra-annual seasonality for the region. We evaluated the sensitivity of 24 Swiss catchments to these scenarios by analyzing the simulated discharge time series and modeled storage. Mean catchment elevation, slope and area were the main controls on the sensitivity of catchment discharge to precipitation. Generally, catchments at higher elevation and with steeper slopes appeared less sensitive to meteorological droughts than catchments at lower elevations with less steep slopes.

Place, publisher, year, edition, pages
2015. Vol. 19, no 3, 1371-1384 p.
National Category
Geosciences, Multidisciplinary
URN: urn:nbn:se:uu:diva-252259DOI: 10.5194/hess-19-1371-2015ISI: 000352160600017OAI: diva2:809777
Available from: 2015-05-05 Created: 2015-05-04 Last updated: 2015-05-05Bibliographically approved

Open Access in DiVA

fulltext(367 kB)76 downloads
File information
File name FULLTEXT01.pdfFile size 367 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Seibert, Jan
By organisation
In the same journal
Hydrology and Earth System Sciences
Geosciences, Multidisciplinary

Search outside of DiVA

GoogleGoogle Scholar
Total: 76 downloads
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: 264 hits
ReferencesLink to record
Permanent link

Direct link