TY - GEN
T1 - Do large-scale models capture reported drought events?
AU - Van Huijgevoort, Marjolein H.J.
AU - Van Lanen, Henny A.J.
AU - Teuling, Adriaan J.
AU - Uijlenhoet, Remko
PY - 2014
Y1 - 2014
N2 - Large-scale hydrological models are used to determine drought on a global scale. However, it is important to know how well these large-scale models can reproduce major drought events in the past before projections can be made. This study presents a comparison between a multi-model ensemble and reported drought events in the literature to assess the performance of large-scale models. Major drought events in the selected period (1963-2000) were reproduced by the model ensemble median, although the duration and spatial extent differed substantially from reported events. The major drought events are caused by precipitation deficits linked to oscillations in climatic patterns, such as ENSO. This implies that major drought events were simulated if these were included in the forcing data. Spatial extent and duration of simulated drought events differed from extent and duration of reported ones due to a fast runoff response in some models.
AB - Large-scale hydrological models are used to determine drought on a global scale. However, it is important to know how well these large-scale models can reproduce major drought events in the past before projections can be made. This study presents a comparison between a multi-model ensemble and reported drought events in the literature to assess the performance of large-scale models. Major drought events in the selected period (1963-2000) were reproduced by the model ensemble median, although the duration and spatial extent differed substantially from reported events. The major drought events are caused by precipitation deficits linked to oscillations in climatic patterns, such as ENSO. This implies that major drought events were simulated if these were included in the forcing data. Spatial extent and duration of simulated drought events differed from extent and duration of reported ones due to a fast runoff response in some models.
KW - Global
KW - Hydrological drought
KW - Large-scale models
KW - Runoff
UR - http://www.scopus.com/inward/record.url?scp=84958171766&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84958171766
T3 - IAHS-AISH Proceedings and Reports
SP - 66
EP - 71
BT - Hydrology in a Changing World
A2 - Servat, Eric
A2 - Paturel, Jean-Emmanuel
A2 - Dezetter, Alain
A2 - Laaha, Gregor
A2 - Boyer, Jean-Francois
A2 - Ruelland, Denis
A2 - Demuth, Siegfried
A2 - Mahe, Gil
A2 - Daniell, Trevor M.
A2 - van Lanen, Henny A. J.
PB - Copernicus
T2 - 7th World Flow Regimes from International and Experimental Network Data-Water Conference, FRIEND-Water 2014
Y2 - 7 October 2014 through 10 October 2014
ER -