Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Hydrol. Earth Syst. Sci., 21, 217-233, 2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
11 Jan 2017
A Budyko framework for estimating how spatial heterogeneity and lateral moisture redistribution affect average evapotranspiration rates as seen from the atmosphere
Elham Rouholahnejad Freund and James W. Kirchner
Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version      Supplement - Supplement
RC1: 'Referee comment', Anonymous Referee #1, 27 Sep 2016 Printer-friendly Version 
AC1: 'Response to Referee #1', Elham Rouhollahnejad, 28 Sep 2016 Printer-friendly Version 
RC2: 'Review Comments', Michael Roderick, 30 Sep 2016 Printer-friendly Version Supplement 
AC2: 'Response to Referee #2', Elham Rouhollahnejad, 01 Oct 2016 Printer-friendly Version 
RC3: 'Review of Budyko paper by Rouholahnejad and Kirchner', Anonymous Referee #3, 12 Oct 2016 Printer-friendly Version 
AC3: 'Response to reviewer #3', Elham Rouhollahnejad, 20 Oct 2016 Printer-friendly Version 
Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by Editor) (01 Nov 2016) by Ross Woods  
AR by Elham Rouhollahnejad on behalf of the Authors (16 Nov 2016)  Author's response  Manuscript
ED: Publish as is (17 Nov 2016) by Ross Woods  
CC BY 4.0
Publications Copernicus
Short summary
Our analysis shows that averaging over sub-grid heterogeneity in precipitation and potential evapotranspiration (ET), as typical earth system models do, overestimates the average of the spatially variable ET. We also show when aridity index increases with altitude, lateral redistribution would transfer water from more humid uplands to more arid lowlands, resulting in a net increase in ET. Therefore, the Earth system models that neglect lateral transfer underestimate ET in those regions.
Our analysis shows that averaging over sub-grid heterogeneity in precipitation and potential...