INVESTIGATE BLOCKING EFFECT ON SNOW EVENT OF HEAVY AND CONTINUOUS IN 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.

DARGAHIAN FATEMEH; ALIJANI BOHLOUL

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

Journal Paper

Paper Information

Journal: GEOGRAPHICAL JOURNAL OF TERRITORY Year:2013 | Volume:10 | Issue:38 Page(s): 1-14

Download Full-Text

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

Persian Verion

View:

1,359

Download:

Cites:

Information Journal Paper

Title

INVESTIGATE BLOCKING EFFECT ON SNOW EVENT OF HEAVY AND CONTINUOUS IN IRAN

Author(s)

DARGAHIAN FATEMEH | ALIJANI BOHLOUL | Issue Writer Certificate

Keywords

PATTERN BLOCKINGQ2

BLOCKING TRAFFIC RIGHT OMEGAQ2

HEAVY AND PERSISTENT SNOWQ2

IRANQ2

Abstract

Each heavy snow event may be not caused by blocking phenomenon, but Occurrence of persistent and heavy snow (4 days or more) can be associated with the occurrence of blocking phenomenon. In order to understand and evaluate the effectiveness of the heavy snowfall and persistent blocking patterns IRAN, Daily data of 500 hPa height, For the cold season (October to March); A period of 60 years in a horizontal grid with a spatial resolution 5.2 * 5.2, from NCEP-NCAR sites, was extracted to 40 degrees west and 100 degrees east longitude and 20 to 80 degrees north latitude. In order to extract the blocking event, data Based on quantitative index climatology, the name of the two-dimensional detector, in MAT LAB software environment, were programmed to detect the occurrence. Then all blocking events continued for 4 days and further extracted. Due to the volume of data, through principal component and clustering techniques, extracted the prevailing patterns blocking. The dominant patterns of precipitation were effective in blocking 4 models on which of these four models, only one model is effective on snow and severe persistent. Results showed that the effects on precipitation patterns, Only Omega blocking pattern, Right trough was recognized as an effective blocking pattern on snow, because the cold air from above to strengthen widths rain system. The results showed if other conditions such as the availability of synoptic Strong pressure level ground, Position of zero degrees C isotherm at 850 hPa and The thickness of the layer thickness of 500 to 1000 Maps Leading to heavy snowfall continued to be in the presence of blocking occurrence.

Cites

No record.

References

Cite

APA: Copy

DARGAHIAN, FATEMEH, & ALIJANI, BOHLOUL. (2013). INVESTIGATE BLOCKING EFFECT ON SNOW EVENT OF HEAVY AND CONTINUOUS IN IRAN. GEOGRAPHICAL JOURNAL OF TERRITORY, 10(38), 1-14. SID. https://sid.ir/paper/116150/en

Vancouver: Copy

DARGAHIAN FATEMEH, ALIJANI BOHLOUL. INVESTIGATE BLOCKING EFFECT ON SNOW EVENT OF HEAVY AND CONTINUOUS IN IRAN. GEOGRAPHICAL JOURNAL OF TERRITORY[Internet]. 2013;10(38):1-14. Available from: https://sid.ir/paper/116150/en

IEEE: Copy

FATEMEH DARGAHIAN, and BOHLOUL ALIJANI, “INVESTIGATE BLOCKING EFFECT ON SNOW EVENT OF HEAVY AND CONTINUOUS IN IRAN,” GEOGRAPHICAL JOURNAL OF TERRITORY, vol. 10, no. 38, pp. 1–14, 2013, [Online]. Available: https://sid.ir/paper/116150/en

Related Journal Papers