A global drought and flood catalogue from 1950 to 2016
A global drought and flood catalogue from 1950 to 2016
Hydrological extremes, in the form of droughts and floods, have impacts on a wide range of sectors including water availability, food security, and energy production. Given continuing large impacts of droughts and floods and the expectation for significant regional changes projected in the future, there is an urgent need to provide estimates of past events and their future risk, globally. However, current estimates of hydrological extremes are not robust and accurate enough, due to lack of long-term data records, standardized methods for event identification, geographical inconsistencies, and data uncertainties. To tackle these challenges, this article presents the development of the first Global Drought and Flood Catalogue (GDFC) for 1950-2016 by merging the latest in situ and remote sensing datasets with state-of-the-art land surface and hydrodynamic modeling to provide a continuous and consistent estimate of the terrestrial water cycle and its extremes. This GDFC also includes an unprecedented level of detailed analysis of drought and large-scale flood events using univariate and multivariate risk assessment frameworks, which incorporates regional spatial-temporal characteristics (i.e., duration, spatial extent, severity) and global hazard maps for different return periods. This Catalogue forms a basis for analyzing the changing risk of droughts and floods and can underscore national and international climate change assessments and provide a key reference for climate change studies and climate model evaluations. It also contributes to the growing interests in multivariate and compounding risk analysis.
E508-E535
He, Xiaogang
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Pan, Ming
10c372fa-0e0e-4eb5-b95b-06a8f9786fc8
Wei, Zhongwang
8c8a2714-1913-4deb-a440-827a382cc775
Wood, Eric F.
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Sheffield, Justin
dd66575b-a4dc-4190-ad95-df2d6aaaaa6b
1 May 2020
He, Xiaogang
5fd2fdc9-b14e-4010-8490-c02950d0a62a
Pan, Ming
10c372fa-0e0e-4eb5-b95b-06a8f9786fc8
Wei, Zhongwang
8c8a2714-1913-4deb-a440-827a382cc775
Wood, Eric F.
8352c1b4-4fd3-42fe-bd23-46619024f1cf
Sheffield, Justin
dd66575b-a4dc-4190-ad95-df2d6aaaaa6b
He, Xiaogang, Pan, Ming, Wei, Zhongwang, Wood, Eric F. and Sheffield, Justin
(2020)
A global drought and flood catalogue from 1950 to 2016.
Bulletin of the American Meteorological Society, 101 (5), .
(doi:10.1175/BAMS-D-18-0269.1).
Abstract
Hydrological extremes, in the form of droughts and floods, have impacts on a wide range of sectors including water availability, food security, and energy production. Given continuing large impacts of droughts and floods and the expectation for significant regional changes projected in the future, there is an urgent need to provide estimates of past events and their future risk, globally. However, current estimates of hydrological extremes are not robust and accurate enough, due to lack of long-term data records, standardized methods for event identification, geographical inconsistencies, and data uncertainties. To tackle these challenges, this article presents the development of the first Global Drought and Flood Catalogue (GDFC) for 1950-2016 by merging the latest in situ and remote sensing datasets with state-of-the-art land surface and hydrodynamic modeling to provide a continuous and consistent estimate of the terrestrial water cycle and its extremes. This GDFC also includes an unprecedented level of detailed analysis of drought and large-scale flood events using univariate and multivariate risk assessment frameworks, which incorporates regional spatial-temporal characteristics (i.e., duration, spatial extent, severity) and global hazard maps for different return periods. This Catalogue forms a basis for analyzing the changing risk of droughts and floods and can underscore national and international climate change assessments and provide a key reference for climate change studies and climate model evaluations. It also contributes to the growing interests in multivariate and compounding risk analysis.
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Accepted/In Press date: 23 December 2019
Published date: 1 May 2020
Additional Information:
Funding Information:
Acknowledgments. The authors gratefully acknowledge funding from NOAA Grant NA14OAR4310218, and the Mary and Randall Hack ’69 Research Fund from the Princeton Environmental Institute at Princeton University, without which this study could not have taken place. This work was also funded through the ‘Building REsearch Capacity for sustainable water and food security In drylands of sub-saharan Africa’ (BRECcIA) which is supported by UK Research and Innovation as part of the Global Challenges Research Fund Grant NE/P021093/1.
Publisher Copyright:
© 2020 American Meteorological Society.
Identifiers
Local EPrints ID: 474356
URI: http://eprints.soton.ac.uk/id/eprint/474356
ISSN: 0003-0007
PURE UUID: f2a0ef5d-9cc8-4a7c-ab19-20e87a859b20
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Date deposited: 20 Feb 2023 18:12
Last modified: 18 Mar 2024 03:33
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Author:
Xiaogang He
Author:
Ming Pan
Author:
Zhongwang Wei
Author:
Eric F. Wood
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