Sorry, you need to enable JavaScript to visit this website.

Global River Discharge and Floods in the Warmer Climate of the Last Interglacial

TitleGlobal River Discharge and Floods in the Warmer Climate of the Last Interglacial
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2020
AuthorsScussolini, Paolo, Eilander Dirk, Sutanudjaja Edwin H., Ikeuchi Hiroaki, Hoch Jannis M., Ward Philip J., Bakker Pepijn, Otto-Bliesner Bette L., Guo Chuncheng, Stepanek Christian, Zhang Qiong, Braconnot Pascale, Guarino Maria Vittoria, Muis Sanne, Yamazaki Dai, Veldkamp Ted I. E., and Aerts Jeroen C. J. H.
JournalGeophysical Research Letters
Volume47
Type of ArticleArticle
ISSN00948276
Abstract

We investigate hydrology during a past climate slightly warmer than the present: the last interglacial (LIG). With daily output of preindustrial and LIG simulations from eight new climate models we force hydrological model PCR-GLOBWB and in turn hydrodynamic model CaMa-Flood. Compared to preindustrial, annual mean LIG runoff, discharge, and 100-yr flood volume are considerably larger in the Northern Hemisphere, by 14%, 25%, and 82%, respectively. Anomalies are negative in the Southern Hemisphere. In some boreal regions, LIG runoff and discharge are lower despite higher precipitation, due to the higher temperatures and evaporation. LIG discharge is much higher for the Niger, Congo, Nile, Ganges, Irrawaddy, and Pearl and lower for the Mississippi, Saint Lawrence, Amazon, Paraná, Orange, Zambesi, Danube, and Ob. Discharge is seasonally postponed in tropical rivers affected by monsoon changes. Results agree with published proxies on the sign of discharge anomaly in 15 of 23 sites where comparison is possible. ©2020. The Authors.

Notes

Cited by: 15; All Open Access, Green Open Access, Hybrid Gold Open Access

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85091537445&doi=10.1029%2f2020GL089375&partnerID=40&md5=8be142cf3787022c3ed61bdd9a64816e
DOI10.1029/2020GL089375
Citation KeyScussolini2020