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

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...

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Published in:Environmental research letters 2019-12, Vol.14 (12), p.125008
Main Authors: Alexander, Lisa V, Fowler, Hayley J, Bador, Margot, Behrangi, Ali, Donat, Markus G, Dunn, Robert, Funk, Chris, Goldie, James, Lewis, Elizabeth, Rogé, Marine, Seneviratne, Sonia I, Venugopal, V
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Language:English
Subjects:
climate indices
Hydrologic data
observations
Precipitation
precipitation extremes
Temporal resolution
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cited_by cdi_FETCH-LOGICAL-c563t-a931e4cdf8cd126de58e94b1fab6eb23028418efad1384187a52cee182c082013
cites cdi_FETCH-LOGICAL-c563t-a931e4cdf8cd126de58e94b1fab6eb23028418efad1384187a52cee182c082013
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container_title Environmental research letters
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creator Alexander, Lisa V
Fowler, Hayley J
Bador, Margot
Behrangi, Ali
Donat, Markus G
Dunn, Robert
Funk, Chris
Goldie, James
Lewis, Elizabeth
Rogé, Marine
Seneviratne, Sonia I
Venugopal, V
description 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.
doi_str_mv 10.1088/1748-9326/ab51b6
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subjects climate indices
Hydrologic data
observations
Precipitation
precipitation extremes
Temporal resolution
title On the use of indices to study extreme precipitation on sub-daily and daily timescales
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