Flash drought onset over the contiguous United States: sensitivity of inventories and trends to quantitative definitions

Osman, Mahmoud; Zaitchik, Benjamin F.; Badr, Hamada S.; Christian, Jordan I.; Tadesse, Tsegaye; Otkin, Jason A.; Anderson, Martha C.

doi:https://doi.org/10.5194/hess-25-565-2021

Articles | Volume 25, issue 2

https://doi.org/10.5194/hess-25-565-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-25-565-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 2

Research article

|

08 Feb 2021

Research article |

| 08 Feb 2021

Flash drought onset over the contiguous United States: sensitivity of inventories and trends to quantitative definitions

Mahmoud Osman, Benjamin F. Zaitchik, Hamada S. Badr, Jordan I. Christian, Tsegaye Tadesse, Jason A. Otkin, and Martha C. Anderson

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Final revised paper (published on 08 Feb 2021)
Supplement to the final revised paper
Preprint (discussion started on 19 Aug 2020)
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: 'reviewer comments', Anonymous Referee #1, 03 Sep 2020
- AC1: 'Responses to Referee#1 Comments', Mahmoud Osman, 24 Oct 2020
RC2: 'Hot topic and interesting method, but not enough verification and needs improvement', Anonymous Referee #2, 30 Sep 2020
- AC2: 'Responses to Referee#2 Comments', Mahmoud Osman, 24 Oct 2020

Peer-review completion

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

ED: Publish subject to revisions (further review by editor and referees) (24 Oct 2020) by Xing Yuan

AR by Mahmoud Osman on behalf of the Authors (24 Oct 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (04 Nov 2020) by Xing Yuan

RR by Anonymous Referee #1 (21 Nov 2020)

RR by Anonymous Referee #2 (07 Dec 2020)

ED: Publish subject to minor revisions (review by editor) (19 Dec 2020) by Xing Yuan

AR by Mahmoud Osman on behalf of the Authors (23 Dec 2020) Author's response Author's tracked changes Manuscript

ED: Publish as is (24 Dec 2020) by Xing Yuan

AR by Mahmoud Osman on behalf of the Authors (25 Dec 2020)

Short summary

Our study of flash droughts' definitions over the United States shows that published definitions yield markedly different inventories of flash drought geography and frequency. Results suggest there are several pathways that can lead to events that are characterized as flash droughts. Lack of consensus across definitions helps to explain apparent contradictions in the literature on trends and indicates the selection of a definition is important for accurate monitoring of different mechanisms.