The Statistical Survey of Precipitation Changes in Saqqez

In this study at first, we supposed the normality of the data by some statistical parametric methods and then using non-parametric (Mann-Kendall) test, the non-linear trend of basin precipitation changes from a period of 45 years (1961-2005) relating to the synoptic station of Saqqez have been inves...

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Main Authors: Hossein Negaresh, Behrooz Sarisaraf, Mohammad Daraee
Format: Article
Language:fas
Published: University of Tabriz 2013-02-01
Series:نشریه جغرافیا و برنامه‌ریزی
Subjects:
Online Access:https://geoplanning.tabrizu.ac.ir/article_38_05b754e0df6fe16d8f7f6b682bc0afad.pdf
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author Hossein Negaresh
Behrooz Sarisaraf
Mohammad Daraee
author_facet Hossein Negaresh
Behrooz Sarisaraf
Mohammad Daraee
author_sort Hossein Negaresh
collection DOAJ
description In this study at first, we supposed the normality of the data by some statistical parametric methods and then using non-parametric (Mann-Kendall) test, the non-linear trend of basin precipitation changes from a period of 45 years (1961-2005) relating to the synoptic station of Saqqez have been investigated. The statistical test results were: 1-The decreasing trend of spring precipitation is significant. 2-There is a significant increasing in summer precipitation. 3-The numerously at precipitation days at the thresholds 1 to 20mm has been decreased, but it increased at the large thresholds to 25mm. 4-The frequency trend of rainstorms days has the significant increasing.
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spelling doaj.art-4b8fd5af5d5e4f799d8fe16e476e90462024-03-19T21:51:41ZfasUniversity of Tabrizنشریه جغرافیا و برنامه‌ریزی2008-80782717-35342013-02-01164223925938The Statistical Survey of Precipitation Changes in SaqqezHossein Negaresh0Behrooz Sarisaraf1Mohammad Daraee2Geography and Environmental Planning, University of Sistan and BaluchestanDepartment of Geography, tabriz UniversityClimatology in Environmental Planning, University of TabrizIn this study at first, we supposed the normality of the data by some statistical parametric methods and then using non-parametric (Mann-Kendall) test, the non-linear trend of basin precipitation changes from a period of 45 years (1961-2005) relating to the synoptic station of Saqqez have been investigated. The statistical test results were: 1-The decreasing trend of spring precipitation is significant. 2-There is a significant increasing in summer precipitation. 3-The numerously at precipitation days at the thresholds 1 to 20mm has been decreased, but it increased at the large thresholds to 25mm. 4-The frequency trend of rainstorms days has the significant increasing.https://geoplanning.tabrizu.ac.ir/article_38_05b754e0df6fe16d8f7f6b682bc0afad.pdfprecipitation changesmann-kendallnon-linear trendprecipitation dayssaqqez
spellingShingle Hossein Negaresh
Behrooz Sarisaraf
Mohammad Daraee
The Statistical Survey of Precipitation Changes in Saqqez
نشریه جغرافیا و برنامه‌ریزی
precipitation changes
mann-kendall
non-linear trend
precipitation days
saqqez
title The Statistical Survey of Precipitation Changes in Saqqez
title_full The Statistical Survey of Precipitation Changes in Saqqez
title_fullStr The Statistical Survey of Precipitation Changes in Saqqez
title_full_unstemmed The Statistical Survey of Precipitation Changes in Saqqez
title_short The Statistical Survey of Precipitation Changes in Saqqez
title_sort statistical survey of precipitation changes in saqqez
topic precipitation changes
mann-kendall
non-linear trend
precipitation days
saqqez
url https://geoplanning.tabrizu.ac.ir/article_38_05b754e0df6fe16d8f7f6b682bc0afad.pdf
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