Towards Quantifying the Uncertainty in Estimating Observed Scaling Rates

Abstract Short‐duration precipitation extremes (PE) increase at a rate of around 7%/K explained by the Clausius‐Clapeyron relationship. Previous studies show uncertainty in the extreme precipitation‐temperature relationship (scaling) due to various thermodynamic/dynamic factors. Here, we show that u...

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Main Authors: Haider Ali, Hayley J. Fowler, David Pritchard, Geert Lenderink, Stephen Blenkinsop, Elizabeth Lewis
Format: Article
Language:English
Published: Wiley 2022-06-01
Series:Geophysical Research Letters
Subjects:
Online Access:https://doi.org/10.1029/2022GL099138
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author Haider Ali
Hayley J. Fowler
David Pritchard
Geert Lenderink
Stephen Blenkinsop
Elizabeth Lewis
author_facet Haider Ali
Hayley J. Fowler
David Pritchard
Geert Lenderink
Stephen Blenkinsop
Elizabeth Lewis
author_sort Haider Ali
collection DOAJ
description Abstract Short‐duration precipitation extremes (PE) increase at a rate of around 7%/K explained by the Clausius‐Clapeyron relationship. Previous studies show uncertainty in the extreme precipitation‐temperature relationship (scaling) due to various thermodynamic/dynamic factors. Here, we show that uncertainty may arise from the choice of data and methods. Using hourly precipitation (PPT) and daily dewpoint temperature (DPT) across 2,905 locations over the United States, we found higher scaling for quality‐controlled data, all locations showing positive (median 6.2%/K) scaling, as compared to raw data showing positive (median 5.3%/K) scaling over 97.5% of locations. We found higher scaling for higher measurement precision of PPT (0.25 mm: median 7.8%/K; 2.54 mm: median 6.6%/K). The method that removes seasonality in PPT and DPT gives higher (with seasonality: median 6.2%/K; without seasonality: median 7.2%/K) scaling. Our results demonstrate the importance of quality‐controlled, high‐precision observations and robust methods in estimating accurate scaling for a better understanding of PE change with warming.
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institution Kabale University
issn 0094-8276
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language English
publishDate 2022-06-01
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series Geophysical Research Letters
spelling doaj-art-b32cfa08e8ed42c08fe452f39f502ecd2025-01-22T14:38:16ZengWileyGeophysical Research Letters0094-82761944-80072022-06-014912n/an/a10.1029/2022GL099138Towards Quantifying the Uncertainty in Estimating Observed Scaling RatesHaider Ali0Hayley J. Fowler1David Pritchard2Geert Lenderink3Stephen Blenkinsop4Elizabeth Lewis5School of Engineering Newcastle University Newcastle upon Tyne UKSchool of Engineering Newcastle University Newcastle upon Tyne UKSchool of Engineering Newcastle University Newcastle upon Tyne UKRoyal Netherlands Meteorological Institute De Bilt The NetherlandsSchool of Engineering Newcastle University Newcastle upon Tyne UKSchool of Engineering Newcastle University Newcastle upon Tyne UKAbstract Short‐duration precipitation extremes (PE) increase at a rate of around 7%/K explained by the Clausius‐Clapeyron relationship. Previous studies show uncertainty in the extreme precipitation‐temperature relationship (scaling) due to various thermodynamic/dynamic factors. Here, we show that uncertainty may arise from the choice of data and methods. Using hourly precipitation (PPT) and daily dewpoint temperature (DPT) across 2,905 locations over the United States, we found higher scaling for quality‐controlled data, all locations showing positive (median 6.2%/K) scaling, as compared to raw data showing positive (median 5.3%/K) scaling over 97.5% of locations. We found higher scaling for higher measurement precision of PPT (0.25 mm: median 7.8%/K; 2.54 mm: median 6.6%/K). The method that removes seasonality in PPT and DPT gives higher (with seasonality: median 6.2%/K; without seasonality: median 7.2%/K) scaling. Our results demonstrate the importance of quality‐controlled, high‐precision observations and robust methods in estimating accurate scaling for a better understanding of PE change with warming.https://doi.org/10.1029/2022GL099138rain‐gauge dataextreme precipitationdewpoint temperaturequality‐controlscalingobserved precipitation
spellingShingle Haider Ali
Hayley J. Fowler
David Pritchard
Geert Lenderink
Stephen Blenkinsop
Elizabeth Lewis
Towards Quantifying the Uncertainty in Estimating Observed Scaling Rates
Geophysical Research Letters
rain‐gauge data
extreme precipitation
dewpoint temperature
quality‐control
scaling
observed precipitation
title Towards Quantifying the Uncertainty in Estimating Observed Scaling Rates
title_full Towards Quantifying the Uncertainty in Estimating Observed Scaling Rates
title_fullStr Towards Quantifying the Uncertainty in Estimating Observed Scaling Rates
title_full_unstemmed Towards Quantifying the Uncertainty in Estimating Observed Scaling Rates
title_short Towards Quantifying the Uncertainty in Estimating Observed Scaling Rates
title_sort towards quantifying the uncertainty in estimating observed scaling rates
topic rain‐gauge data
extreme precipitation
dewpoint temperature
quality‐control
scaling
observed precipitation
url https://doi.org/10.1029/2022GL099138
work_keys_str_mv AT haiderali towardsquantifyingtheuncertaintyinestimatingobservedscalingrates
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AT davidpritchard towardsquantifyingtheuncertaintyinestimatingobservedscalingrates
AT geertlenderink towardsquantifyingtheuncertaintyinestimatingobservedscalingrates
AT stephenblenkinsop towardsquantifyingtheuncertaintyinestimatingobservedscalingrates
AT elizabethlewis towardsquantifyingtheuncertaintyinestimatingobservedscalingrates