ESTIMATION OF 24-H PROBABLE MAXIMUM PRECIPITATION BY USING DIFFERENT STATISTICAL APPROACHES FOR NORTH-EAST OF IRAN

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.

TAJBAKHSH MOHAMMAD; GHAHRAMAN B.

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

Journal Paper

Paper Information

Journal: Journal of Water and Soil Conservation Year:2009 | Volume:16 | Issue:1 Page(s): 123-141

Download Full-Text

Persian Verion

View:

2,835

Download:

Cites:

Information Journal Paper

Title

ESTIMATION OF 24-H PROBABLE MAXIMUM PRECIPITATION BY USING DIFFERENT STATISTICAL APPROACHES FOR NORTH-EAST OF IRAN

Author(s)

TAJBAKHSH MOHAMMAD | GHAHRAMAN B. | Issue Writer Certificate

Keywords

24-H PROBABLE MAXIMUM PRECIPITATIONQ3

HERSHFIELDQ3

MANN-KENDALL RANK TESTQ3

Abstract

Hershfield method is commonly used for computing probable maximum precipitation (PMP) in most parts of the world for which the frequency factor (Km) is considered to be 15 for computing 24-h PMP (PMP24). This value may not be suitable for different stations under different climatic conditions. In 1986 the world meteorological organization standardized the HERSHFIELD method and introduced the record length and the maximum value observed for the correction of the Km. In 2001 in Malazia Desa et al. introduced a new approach to the HERSHFIELD method. Only the maximum value was considered in this approach, and caused a severe decrease in Km which was more rational. In this paper maximum daily rainfall values for 46 raingage stations located in north-east of Iran with record length of 13 to 48 years was adopted to estimate the appropriate Km values. For the first approach, Km was found to be varied in the range of 16.7 and 19.5 and the PMP24 was in the range of 138.6 and 410.3 mm. This high range is in part influenced by short record length of the stations. The corresponding values of Km for the second approach was 1.8 and 6.2 and for PMP24 was 62.7 and 207.7 mm. Numerous data in the literature supported that the ratio of PMP24 to maximum of p24, as a criteria independent of climatic conditions, was consistent for the second approach and was in harmony with multi-station method that uses all of the data at a time. Based on the literature, it was shown that ratio of statistical PMP24 to synoptic PMP24 is closer to 1 for the second approach. Finally, the map of PMP24 isochrones was prepared for the second approach which was assumed to be a sound estimation of PMP24 for the north-east of Iran. This map may be in use for runoff control of rivers which are drained either to other countries or to the interior deserts.

Cites

ESTIMATING THE PROBABLE MAXIMUM PRECIPITATION IN THE BAKHTIARI DAM BASIN USING THE STATISTICAL AND SYNOPTICAL METHODS

References

No record.

Cite

APA: Copy

TAJBAKHSH, MOHAMMAD, & GHAHRAMAN, B.. (2009). ESTIMATION OF 24-H PROBABLE MAXIMUM PRECIPITATION BY USING DIFFERENT STATISTICAL APPROACHES FOR NORTH-EAST OF IRAN. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 16(1), 123-141. SID. https://sid.ir/paper/156494/en

Vancouver: Copy

TAJBAKHSH MOHAMMAD, GHAHRAMAN B.. ESTIMATION OF 24-H PROBABLE MAXIMUM PRECIPITATION BY USING DIFFERENT STATISTICAL APPROACHES FOR NORTH-EAST OF IRAN. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2009;16(1):123-141. Available from: https://sid.ir/paper/156494/en

IEEE: Copy

MOHAMMAD TAJBAKHSH, and B. GHAHRAMAN, “ESTIMATION OF 24-H PROBABLE MAXIMUM PRECIPITATION BY USING DIFFERENT STATISTICAL APPROACHES FOR NORTH-EAST OF IRAN,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 16, no. 1, pp. 123–141, 2009, [Online]. Available: https://sid.ir/paper/156494/en

Related Journal Papers