Spatial analysis on continuty of rainfalls over Iran during in the cold period of the year

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Saghafi Maryam; Alijani Bohloul; Moradi Mohammad; Barati Gholamreza

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Geographical Planning of Space Year:2021 | Volume:11 | Issue:40 Page(s): 41-54

Download Full-Text

Persian Verion

View:

Download:

Cites:

Information Journal Paper

Title

Spatial analysis on continuty of rainfalls over Iran during in the cold period of the year

Author(s)

Saghafi Maryam | Alijani Bohloul | Moradi Mohammad | Barati Gholamreza | Issue Writer Certificate

Keywords

Spatial patternsQ4

Precipitation durabilityQ4

Rainy dayQ4

IranQ4

Abstract

Precipitation plays a fundamental role in the survival of Earth's systems and provides water to sustain life on earth. The importance of Precipitation durability, especially in arid and semi-arid regions, which includes most part of Iran, is greater than its volume. The aim of this study is to identify the rainfall regions of Iran in terms of rainfall durability and to investigate the characteristics of rainfall durability in each region. in order to investigate the durability of Iran's precipitation and by defining the day of precipitation as "Day with a rainfall equal to or greater than 0. 5 mm", the daily precipitation data of 80 synoptic stations in the country during the cold 6 months of the year from October to March over a 30-year period (1987-2016) used. Setting the data in daily tables in the first step, enabled programming in the MATLAB environment for separating precipitation into ten groups from "one-day" to "ten-day". And in the second step in the SPSS environment based on frequency characteristics, amount and mean of precipitation in the mentioned groups, clustering done by WARD method were merged by clustering method. Implementation of clustering process on Iran rainfall durability showed that there are 7 almost homogeneous zones in Iran based on rainfall durability, which the effect of inland and outer climatic factors including latitude, roughness, path of precipitation systems and distance to moisture sources is evident that with declining the last three factors, these zones become more homogeneous in the eastern half of Iran. One of the projectable hazards is that the supply of atmospheric precipitation, especially in east of Iran, is more in charge of short durable precipitation. In fact, the one-day and the two-day low precipitations are dominant in the western part of the country and in terms of the proportion of durability in the eastern half of Iran. This finding shows the general inefficiency of the country's water resources management plans with the macro approach of storage the surface water.

Cites

No record.

References

No record.

Cite

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops