Large-Scale Controls of the Surface Water Balance Over Land-Insights From a Systematic Review and Meta-Analysis

14913 12 80796 2 223714 document 80796 Padr-n_et_al-2017-Water_Resources_Research.pdf application/pdf 0d09c7fa8af152815748522d2740b766 MD5 3971311 2018-02-13 10:13:58 https://pure.iiasa.ac.at/id/eprint/14913/1/Padr-n_et_al-2017-Water_Resources_Research.pdf 14913 1 1 application/pdf text en public cc_by_nc_nd

Padr-n_et_al-2017-Water_Resources_Research.pdf

published 80797 2 223720 document 80797 lightbox.jpg image/png 529ea014e1601865c8b4b25011f468f8 MD5 59839 2018-02-13 10:24:33 https://pure.iiasa.ac.at/id/eprint/14913/2/lightbox.jpg 14913 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/80796 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/80796 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/80796 archive 5 disk0/00/01/49/13 2017-10-31 07:55:04 2021-08-27 17:29:32 2017-10-31 07:55:04 article show Padrón R.S. Gudmundsson L. Greve P. 2142 Seneviratne S.I. Large-Scale Controls of the Surface Water Balance Over Land-Insights From a Systematic Review and Meta-Analysis pub prog_wat The long-term surface water balance over land is described by the partitioning of precipitation (P) into runoff and evapotranspiration (ET), and is commonly characterized by the ratio ET/P. The ratio between potential evapotranspiration (PET) and P is explicitly considered to be the primary control of ET/P within the Budyko framework, whereas all other controls are often integrated into a single parameter, ω. Although the joint effect of these additional controlling factors of ET/P can be significant, a detailed understanding of them is yet to be achieved. This study therefore introduces a new global dataset for the long-term mean partitioning of P into ET and runoff in 2733 catchments, which is based on in-situ observations and assembled from a systematic examination of peer-reviewed studies. A total of 26 controls of ET/P that are proposed in the literature are assessed using the new dataset. Results reveal that: (i) factors controlling ET/P vary between regions with different climate types; (ii) controls other than PET/P explain at least 35% of the ET/P variance in all regions, and up to ∼90% in arid climates; (iii) among these, climate factors and catchment slope dominate over other landscape characteristics; and (iv) despite the high attention that vegetation-related indices receive as controls of ET/P, they are found to play a minor and often non-significant role. Overall, this study provides a comprehensive picture on factors controlling the partitioning of P, with valuable insights for model development, watershed management, and the assessment of water resources around the globe. 2017-11 published AGU Publications 10.1002/2017WR021215 2897 public Water Resources Research 53 11 9659-9678 TRUE 00431397 Land-Climate Interactions: Constraints for Droughts and Heatwaves in a Changing Climate (DROUGHT-HEAT, FP7 617518) FALSE yes info:eu-repo/grantAgreement/EC/FP7/617518/Land-Climate Interactions: Constraints for Droughts and Heatwaves in a Changing Climate/DROUGHT-HEAT info:eu-repo/semantics/article info:eu-repo/semantics/openAccess