Repeated and random components in Oklahoma's monthly precipitation record

Precipitation across Oklahoma exhibits a high degree of spatial and temporal variability and creates numerous water resources management challenges. Risk-based decision making in agricultural and water resources management may find value in knowing the extent to which historical precipitation can pr...

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Main Authors: Jurgen D. Garbrecht, David P. Brown, X.C. John Zhang
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2018-09-01
Series:International Soil and Water Conservation Research
Online Access:http://www.sciencedirect.com/science/article/pii/S2095633918300467
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author Jurgen D. Garbrecht
David P. Brown
X.C. John Zhang
author_facet Jurgen D. Garbrecht
David P. Brown
X.C. John Zhang
author_sort Jurgen D. Garbrecht
collection DOAJ
description Precipitation across Oklahoma exhibits a high degree of spatial and temporal variability and creates numerous water resources management challenges. Risk-based decision making in agricultural and water resources management may find value in knowing the extent to which historical precipitation can provide guidance for inferring expectations of future monthly precipitation. A 123-year long monthly precipitation record from the central Oklahoma climate division was evaluated, in a proof-of-concept analysis, to establish whether a simple monthly precipitation decomposition into repeatable (expected) and random (unexpected) components could identify the odds of encountering repeatable or random monthly precipitation in the future. The metric for identifying precipitation kind was based on it falling within or outside of a predetermined range, defined by the relative difference between random and a percentage of repeatable precipitation. For climate conditions in central Oklahoma, the odds of future precipitation being repeatable were between 18% and 33%, depending on the month of the year. The corresponding odds of precipitation being random were 67–82%. Thus, management decisions that rely solely on historical precipitation records to anticipate future monthly precipitation have a low probability of success in central Oklahoma. Keywords: Precipitation, Climate, Classic decomposition, Precipitation expectation, Risk, Water resources
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spelling doaj.art-7ab6aa8da4154c6cb8e991667fd14c882024-03-02T14:30:28ZengKeAi Communications Co., Ltd.International Soil and Water Conservation Research2095-63392018-09-0163261263Repeated and random components in Oklahoma's monthly precipitation recordJurgen D. Garbrecht0David P. Brown1X.C. John Zhang2Corresponding author.; USDA Agricultural Research Service, Grazingland Research Laboratory, 7302 West Cheyenne Str., El Reno, OK 73036, United StatesUSDA Agricultural Research Service, Grazingland Research Laboratory, 7302 West Cheyenne Str., El Reno, OK 73036, United StatesUSDA Agricultural Research Service, Grazingland Research Laboratory, 7302 West Cheyenne Str., El Reno, OK 73036, United StatesPrecipitation across Oklahoma exhibits a high degree of spatial and temporal variability and creates numerous water resources management challenges. Risk-based decision making in agricultural and water resources management may find value in knowing the extent to which historical precipitation can provide guidance for inferring expectations of future monthly precipitation. A 123-year long monthly precipitation record from the central Oklahoma climate division was evaluated, in a proof-of-concept analysis, to establish whether a simple monthly precipitation decomposition into repeatable (expected) and random (unexpected) components could identify the odds of encountering repeatable or random monthly precipitation in the future. The metric for identifying precipitation kind was based on it falling within or outside of a predetermined range, defined by the relative difference between random and a percentage of repeatable precipitation. For climate conditions in central Oklahoma, the odds of future precipitation being repeatable were between 18% and 33%, depending on the month of the year. The corresponding odds of precipitation being random were 67–82%. Thus, management decisions that rely solely on historical precipitation records to anticipate future monthly precipitation have a low probability of success in central Oklahoma. Keywords: Precipitation, Climate, Classic decomposition, Precipitation expectation, Risk, Water resourceshttp://www.sciencedirect.com/science/article/pii/S2095633918300467
spellingShingle Jurgen D. Garbrecht
David P. Brown
X.C. John Zhang
Repeated and random components in Oklahoma's monthly precipitation record
International Soil and Water Conservation Research
title Repeated and random components in Oklahoma's monthly precipitation record
title_full Repeated and random components in Oklahoma's monthly precipitation record
title_fullStr Repeated and random components in Oklahoma's monthly precipitation record
title_full_unstemmed Repeated and random components in Oklahoma's monthly precipitation record
title_short Repeated and random components in Oklahoma's monthly precipitation record
title_sort repeated and random components in oklahoma s monthly precipitation record
url http://www.sciencedirect.com/science/article/pii/S2095633918300467
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