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On the use of indices to study extreme precipitation on sub-daily and daily timescales

Alexander, LV and Fowler, HJ and Bador, M and Behrangi, A and Donat, MG and Dunn, R and Funk, C and Goldie, J and Lewis, E and Rogé, M and Seneviratne, SI and Venugopal, V (2019) On the use of indices to study extreme precipitation on sub-daily and daily timescales. In: Environmental Research Letters, 14 (12).

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Official URL: https://doi.org/10.1088/1748-9326/ab51b6


While there are obstacles to the exchange of long-term high temporal resolution precipitation data, there have been fewer barriers to the exchange of so-called 'indices'. These are derived from daily and sub-daily data and measure aspects of precipitation frequency, duration and intensity that could be used for the study of extremes. This paper outlines the history of the rationale and use of these indices, the types of indices that are frequently used and the advantages and pitfalls in analysing them. Moving forward, satellite precipitation products are now showing the potential to provide global climate indices to supplement existing products using longer-term in situ gauge records but we suggest that to advance this area differences between data products, limitations in satellite-based estimation processes, and the inherent challenges of scale need to be better understood.

Item Type: Journal Article
Publication: Environmental Research Letters
Publisher: Institute of Physics Publishing
Additional Information: The copyright for this article belongs to the Authors.
Keywords: Environmental engineering; Research, Advantages and pitfalls; Estimation process; Extreme precipitation; Global climates; High temporal resolution; Precipitation data; Precipitation frequency; Satellite precipitation products, Precipitation (meteorology), extreme event; frequency analysis; gauge; global climate; satellite altimetry; timescale
Department/Centre: Division of Mechanical Sciences > Divecha Centre for Climate Change
Division of Interdisciplinary Sciences > Interdisciplinary Centre for Water Research
Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited: 13 Oct 2022 06:04
Last Modified: 13 Oct 2022 06:04
URI: https://eprints.iisc.ac.in/id/eprint/77381

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