Response of global evaporation to major climate modes in historical and future Coupled Model Intercomparison Project Phase 5 simulations

Le, Thanh; Bae, Deg-Hyo

doi:https://doi.org/10.5194/hess-24-1131-2020

Articles | Volume 24, issue 3

https://doi.org/10.5194/hess-24-1131-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-24-1131-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 3

Research article

|

11 Mar 2020

Research article |

| 11 Mar 2020

Response of global evaporation to major climate modes in historical and future Coupled Model Intercomparison Project Phase 5 simulations

Thanh Le and Deg-Hyo Bae

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Final revised paper (published on 11 Mar 2020)
Supplement to the final revised paper
Preprint (discussion started on 28 Aug 2019)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'referee comments for Le et al. 2019', Brecht Martens, 27 Sep 2019
- AC1: 'Response to Brecht Martens', Thanh Le, 18 Nov 2019
RC2: 'Referee comments – Response of global evaporation to major climate modes in historical and future CMIP5 simulations', Jasper Denissen, 19 Nov 2019
- AC2: 'Response to Jasper Denissen', Thanh Le, 08 Dec 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (further review by editor and referees) (08 Dec 2019) by Adriaan J. (Ryan) Teuling

AR by Thanh Le on behalf of the Authors (09 Dec 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (03 Jan 2020) by Adriaan J. (Ryan) Teuling

RR by Jasper Denissen (08 Jan 2020)

Suggestions for revision or reasons for rejection

1) While I do like the addition of Figure 7, I’m not satisfied line 290 - 293. This figure allows to elaborate more on where and why there are the largest differences between dominant climate modes or where and why there are no differences. If the differences between past and future are not mentioned, why show both past and future at all? A shift from one dominant climate mode to another means a shift in dynamics related to their respective climate modes, which could change the timing and magnitude of evaporation.

2) I appreciate the addition of line 104 - 113, but I still don’t have an idea about what makes this technique robust (line 114 - 115). Maybe I should ask what you mean with robust? In my opinion, robustness means for example bootstrapping the analysis and getting similar results.

3) The significance of the results in Figures 1, 2 and 3 is different from the significance of the results shown in Figure 4. One could think of it this way: if for example the probability for the absence of Granger causality between ENSO and annual mean evaporation for the period 1906-2000 is 0.1 and significant (as noted by the green and red contour lines in Figure 1) and the probability for the absence of Granger causality between IOD and annual mean evaporation for the period 1906-2000 is 0.1 and significant, the difference between these two is approximately 0, which makes the difference insignificant. What I’m getting at is that you need another significance test to test whether the difference is significantly different from 0, which could be achieved with a two-sample t-test. This should be done for Figure 4 and 6 and might alter the percentages mentioned in the Discussions section.

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RR by Brecht Martens (28 Jan 2020)

ED: Publish subject to minor revisions (review by editor) (28 Jan 2020) by Adriaan J. (Ryan) Teuling

AR by Thanh Le on behalf of the Authors (08 Feb 2020) Author's response Manuscript

ED: Publish as is (10 Feb 2020) by Adriaan J. (Ryan) Teuling

AR by Thanh Le on behalf of the Authors (11 Feb 2020)

Short summary

Here we investigate the response of global evaporation to main climate modes, including the Indian Ocean Dipole (IOD), the North Atlantic Oscillation (NAO) and the El Niño–Southern Oscillation (ENSO). Our results indicate that ENSO is an important driver of evaporation for many regions, while the impacts of NAO and IOD are substantial. This study allows us to obtain insight about the predictability of evaporation and, hence, may help to improve the early-warning systems of climate extremes.