The Study of the Impact of Temperature and Wind In the Southern Low Pressure Systems

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.

Pouratashi Mahboobeh; MORADI MOHAMMAD; FATTAHI EBRAHIM

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

Journal Paper

Paper Information

Journal: JOURNAL OF GEOGRAPHICAL SCIENCES Year:2020 | Volume:20 | Issue:57 Page(s): 223-241

Download Full-Text

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

Persian Verion

View:

472

Download:

Cites:

Information Journal Paper

Title

The Study of the Impact of Temperature and Wind In the Southern Low Pressure Systems

Author(s)

Pouratashi Mahboobeh | MORADI MOHAMMAD | FATTAHI EBRAHIM | Issue Writer Certificate

Keywords

heavy rainfallQ1

southern low pressureQ1

WRF modelQ2

south and southwest of IranQ1

southern cycloneQ1

Abstract

This research aims to study the impact of temperature and wind in the southern low-pressure system and its associated precipitation in the southern regions of Iran. As The southern low pressure system moves eastward, it crosses the southern regions of Iran, causing medium and heavy rainfall in these areas. In this study, two southern low-pressure systems that caused heavy rainfall on March 11, 2015 and January 17, 2000 in southern Iran were selected, analyzed and simulated using the numerical Weather Research and Forecasting (WRF) model. Since the wind and temperature fields play a significant role in the southern low-pressure systems, four experiments were performed for investigating the effects of temperature and wind on the intensification and weakening of the southern system. The simulation results showed that the simulation for the increased (decreased) temperature caused the weakened (intensified) the southern low pressure in the studied area. This result showed that the vertical structure of the southern low-pressure and its physical characteristics are similar to the mid-latitudes cyclones, and these systems were different from the thermal low pressures. The results of wind speed changes showed that the increased (decreased) wind speed simulation caused an increase (decrease) in relative vorticity, thus the southern low pressure was intensified (weakened). In both cases, the rainfall was decreased by the increased temperature simulation, and decreased temperature caused an increase in rainfall. It was also seen that the increase in wind speed caused the special humidity advection to be increased and then the rainfall increased. Also the amount of rainfall decreased when conditions did not provide for the advection of specific humidity or the wind speed reduced.

Cites

No record.

References

No record.

Cite

APA: Copy

Pouratashi, Mahboobeh, MORADI, MOHAMMAD, & FATTAHI, EBRAHIM. (2020). The Study of the Impact of Temperature and Wind In the Southern Low Pressure Systems. JOURNAL OF GEOGRAPHICAL SCIENCES, 20(57 ), 223-241. SID. https://sid.ir/paper/375113/en

Vancouver: Copy

Pouratashi Mahboobeh, MORADI MOHAMMAD, FATTAHI EBRAHIM. The Study of the Impact of Temperature and Wind In the Southern Low Pressure Systems. JOURNAL OF GEOGRAPHICAL SCIENCES[Internet]. 2020;20(57 ):223-241. Available from: https://sid.ir/paper/375113/en

IEEE: Copy

Mahboobeh Pouratashi, MOHAMMAD MORADI, and EBRAHIM FATTAHI, “The Study of the Impact of Temperature and Wind In the Southern Low Pressure Systems,” JOURNAL OF GEOGRAPHICAL SCIENCES, vol. 20, no. 57 , pp. 223–241, 2020, [Online]. Available: https://sid.ir/paper/375113/en

Related Journal Papers