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Showing 23 results for rahimi
Correlation between the NAO index and the occurrence of ARs in Iran
Mostafa Karampour, Yeganeh Khamoshian Sahneh, Zohreh Ebrahimi, Hamed Heidari,
Volume 25, Issue 78 (9-2025)
Abstract
Atmospheric rivers are one of the atmospheric phenomena that generate heavy rainfall and can lead to significant human and financial losses. Understanding the synoptic mechanisms of water vapor flux and atmospheric river formation in the country's atmosphere, as well as revealing the interaction between the NAO (North Atlantic Oscillation) zonal component and the creation and intensification of this atmospheric phenomenon, can greatly improve the predictability of torrential rainfall events. The main goal of this research is to investigate the atmospheric river phenomenon in the Iranian atmosphere and its relationship with the phases of the NAO phenomenon. In this regard, data on the zonal and meridional components of wind, specific humidity, and NAO anomalies were obtained from the NOAA database during the statistical period of 1944–2019. The results showed that during the study period, atmospheric rivers have shifted in terms of longitude and latitude, moving toward the southern half of Iran. A high correlation was observed between the NAO index and meridional flows at levels above 600 hectopascals. Additionally, a sigma value of 0.2101 indicated a strong correlation with the NAO in the area where atmospheric rivers enter the Iranian atmosphere.  High-pressure centers play an important role in directing atmospheric rivers. These rivers cannot pass through high-pressure centers and typically exhibit meridional curvature at the outer borders of these centers in the Northern Hemisphere, resulting in southwest and northeast orientations. The primary moisture source for atmospheric rivers entering Iran is the Atlantic Ocean, which is further enhanced by water bodies such as the Red Sea, the Sea of Oman, the Indian Ocean, and the Persian Gulf.

Investigating the Impact of Destination Image and Quality of Services on the Competitiveness of Tourism Purposes: Tabriz City
Fereydoon . Babaei Aghdam, Rahim Rahim Heydari Chianeh, Qassem Rahimifard,
Volume 25, Issue 79 (12-2025)
Abstract
The objective of this study was to examine the impact of destination image and service quality on the competitiveness of tourism destinations, specifically focusing on Tabriz city. This research is classified as applied in terms of its purpose and analytical in terms of its descriptive methodology. The statistical population comprised incoming tourists to Tabriz, with a sample size estimated at 384, calculated using Cochran's formula for an infinite population. To gather field data, a researcher-developed questionnaire was employed, the validity of which was confirmed by subject matter experts. The reliability of the instrument was assessed using Cronbach's alpha and composite reliability, with the results affirming the questionnaire's reliability. Data analysis was conducted utilizing SPSS and LISREL software. The findings indicated that both destination image and service quality exert a positive and significant influence on the competitiveness of tourism destinations. Furthermore, the path coefficient analysis demonstrated that the impact of destination image on the competitiveness of tourism destinations was greater than that of service quality.

Analysis of urban resilience against earthquakes with emphasis Land use planning (Case study: Tabriz metropolis)
Yaser Nazaryan, Amane Haghzad, Leyla Ebrahimi, Kia Abozorgmehr51,
Volume 26, Issue 80 (3-2026)
Abstract
Vulnerability is the inevitable result of risks and crises that threaten societies to varying degrees. One of the main threats is earthquakes. The recent approach to disaster management programs is to increase the resilience of communities that have different dimensions. One of them is the physical dimension of urban resilience, which is linked to the components of land use planning. In this research, with the aim of analyzing land use criteria affecting the resilience of Tabriz city and using fuzzy AHP method, research has been done.
Based on the results of the study of theoretical foundations, 13 effective criteria have been identified and the basis of action. The required data were extracted and used from maps and spatial information of urban plans, especially the detailed plan of Tabriz, Then Using ARC Map10.3.1 software, each criterion is analyzed and each criterion is presented in the form of a fuzzy map. Sum, Product and gamma fuzzy operators have been used to achieve the final resilience map. Due to the high accuracy of the gamma operator, its results are considered as the final output.
The results show that in the city of Tabriz, 2% have very low resilience, 40.8%, low resilience,15.3% moderate resilience, 23.5% high resilience and 7.2% very high resilience - based on the Used criteria-. Areas with low resilience are generally located in the north of Tabriz city and correspond to the informal settlement texture and the worn-out texture of the city, which corresponds to the fault line of Tabriz and Micronutrient and permeability are other features of these areas. Due to the high population density in these areas, it is necessary to immediately adopt the necessary programs to improve the quality of physical resilience criteria in the city.

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