Articles | Volume 23, issue 1
Research article
28 Jan 2019
Research article |  | 28 Jan 2019

Using phase lags to evaluate model biases in simulating the diurnal cycle of evapotranspiration: a case study in Luxembourg

Maik Renner, Claire Brenner, Kaniska Mallick, Hans-Dieter Wizemann, Luigi Conte, Ivonne Trebs, Jianhui Wei, Volker Wulfmeyer, Karsten Schulz, and Axel Kleidon


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (further review by editor and referees) (11 Oct 2018) by Shraddhanand Shukla
AR by Maik Renner on behalf of the Authors (21 Nov 2018)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (21 Nov 2018) by Shraddhanand Shukla
RR by Anonymous Referee #1 (05 Dec 2018)
RR by Anonymous Referee #2 (21 Dec 2018)
ED: Publish subject to technical corrections (29 Dec 2018) by Shraddhanand Shukla
AR by Maik Renner on behalf of the Authors (15 Jan 2019)  Author's response   Manuscript 
Short summary
We estimate the phase lag of surface states and heat fluxes to incoming solar radiation at the sub-daily timescale. While evapotranspiration reveals a minor phase lag, the vapor pressure deficit used as input by Penman–Monteith approaches shows a large phase lag. The surface-to-air temperature gradient used by energy balance residual approaches shows a small phase shift in agreement with the sensible heat flux and thus explains the better correlation of these models at the sub-daily timescale.