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        1 - Modeling and Predicting the Risk of Occurrence of Flood Zones Due to Rainfall Under Climate Change Conditions case study: Gorganrood watershed
        Abdolhafez Panahi Gholamreza janbazghobadi Sadroddin Motevalli shahryar khaldi
        .floods are known as one of the most important natural disasters. In practice, floods are one of the most devastating weather disasters in the world, both in terms of casualties and financial losses. The purpose of this study is to measure and evaluate the changes in fl More
        .floods are known as one of the most important natural disasters. In practice, floods are one of the most devastating weather disasters in the world, both in terms of casualties and financial losses. The purpose of this study is to measure and evaluate the changes in flood zones using the weighting technique in the GIS environment. The method of the present study, according to the nature of the problem and the subject under study, is descriptive-analytical and applied studies. With emphasis on quantitative methods, in the present study, changes in flood zones in Gorganrood watershed based on the use of meteorological station information (synoptic) with a 30-year statistical period (1989 to 2018), land use, vegetation, topographic moisture index Slope, altitude, land lithology, distance from river, river density, erosion, soil science, runoff, simulated precipitation data from LARS-WG model have been modeled and estimated. The general kriging method with the lowest mean estimation error (0.004) and the square root mean error of 82.23 is the best method for interpolation in this study. Also, in combining fuzzy analysis methods with hierarchy to determine the expected estimate, both methods had higher estimates than expected. Findings showed that 800 mm sub-basin of Normab basin in the central part of Maderso, Yale Cheshmeh and Qarnaveh basins in the northeast of Gorganrood watershed with the amount of 500 to 700 mm and the northern parts of Mohammadabad and Ghorchai basins with the amount of 300 mm. Manuscript profile
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        2 - Wind power plants site selection using Boolean model and ArcGIS (Case study: Mazandaran Province)
        Reyhaneh Bairamvand Sadroddin Motevalli GholamReza Janbaz Ghobadi Khabat Derafshi
        Recently, Mazandaran Province has needed more energy. Considering the capabilities of this province in generating renewable energy, recognizing the potentials of clean energy generation and consumption, especially wind energy, should be a priority in the plans of manage More
        Recently, Mazandaran Province has needed more energy. Considering the capabilities of this province in generating renewable energy, recognizing the potentials of clean energy generation and consumption, especially wind energy, should be a priority in the plans of managers and researchers. A descriptive, analytical and field approach is used in this study. The spatial capability of wind power plants in Mazandaran Province was evaluated using spatial and quantitative data. In order to initially estimate the energy that can be obtained from wind flow in the province, the necessary calculations were performed on wind direction and velocity information over a period of 12 years. Then, based on the group of experts, documentary and library studies, scientific resources in this field and available data, four climatic, economic, environmental-social and topographical factors, have been selected as the most important indicators to determine suitable areas for the establishment of wind power plants in Mazandaran Province. These four criteria include 18 sub-criteria and after weighting and overlapping, the final zoning map was prepared using the Boolean model. According to the final map, the central strip of the province within the boundaries of Noor, Amol and Babol counties, the northern parts of Noor and Sari counties, the south of Savadkooh and Qaemshahr counties, as well as the central and southern parts of Behshahr county, are more suitable areas than other parts of Mazandaran Province for establishing wind power plants. Manuscript profile
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        3 - An analysis of the role of natural factors in the development of sustainable tourism in the southern regions of Mazandaran (Case study: Band pei section of Babol County)
        Sadroddin Motevalli
        Today,Tourism is one of the economic activities with high growth in the world. Unfortunately, tourism in our country, especially in the sector of band pei Babel , despite having many potentials, including natural ones has not been able to take a significant role in the More
        Today,Tourism is one of the economic activities with high growth in the world. Unfortunately, tourism in our country, especially in the sector of band pei Babel , despite having many potentials, including natural ones has not been able to take a significant role in the economic development of the people. The purpose of this research is to investigate and analyze the role of natural capabilities in the development of sustainable tourism in Band pei Babol. The method research is from the aspect of practical purpose and in terms of descriptive-analytical and field nature, which has been collected with library and field methods and tools such as questionnaire.The information obtained through the software (SPSS) has been analyzed, finally, through one-sample t-test, Pearson's correlation test and Friedman's test. Three indices of geological and geomorphological attractions, plant and animal,climatic and water have been used in the research.The results show that according to the comparison of the average value of the assessed items in the field of natural capabilities and sustainable tourism development of Bandpei sector considering that the obtained sig is lower than the alpha level was 0.05 it can be concluded that there is a significant relationship between the natural capabilities and sustainable tourism development.Climatic and water attractiveness indices have an average rank of 3.85 plant and animal attractiveness with 3.46 and geological and geomorphological attractiveness with 2. 98 respectively have assigned the rank of one to three in the study area.Keywords: natural capability, sustainable tourism development, Babol county Manuscript profile
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        4 - پهنه بندی زمین لغزش در حوضه آبخیز خانیان تنکابن با استفاده از مدل ارزش اطلاعاتیWinf
        Sadroddin Motevalli
        بخش عمده ای از سرزمین ایران را مناطق کوهستانی فرا گرفته است.یکی از مخاطراتی که همواره این مناطق را تهدید میکند ناپایداری های دامنه ای است . مخاطره آمیزترین این ناپایداریها پدیده زمین لغزش می باشد که سالیانه خسارت های زیادی را ایجاد می کند.در این راستا این پژوهش با هدف ج More
        بخش عمده ای از سرزمین ایران را مناطق کوهستانی فرا گرفته است.یکی از مخاطراتی که همواره این مناطق را تهدید میکند ناپایداری های دامنه ای است . مخاطره آمیزترین این ناپایداریها پدیده زمین لغزش می باشد که سالیانه خسارت های زیادی را ایجاد می کند.در این راستا این پژوهش با هدف جلوگیری وکاهش خسارات مالی و جانی،حفظ و حراست از منابع طبیعی روستای خانیان در حوضه سه هزار تنکابن صورت گرفته است. روش این پژهش از نظر هدف کاربردی و از نظر ماهیت توصیفی-تحلیلی و میدانی است.در ابتدا با بررسی منابع پژوهشی مرتبط با موضوع برخی از مهمترین عوامل مؤثر در رخداد این پدیده مانند طبقات ارتفاعی ،شیب، جهت شیب ، کاربری اراضی ، اقلیم، شبکه هیدروگرافی و زمین شناسی منطقه در محیط سامانه اطلاعات جغرافیایی تهیه و رقومی شدند،همچنین خاک محدوده لغزشی موردآزمایشاتی چون تعیین میزان آهک،شوری خاک،میزان اسیدیته،نوع کانی های رسی،نوع بافت خاک،آزمایش برش مستقیم و حدود آتربرگ قرار گرفت.جهت پهنه بندی زمینلغزش و تجزیه و تحلیل آن روش ارزش اطلاعاتی و وزن دهی به عوامل مختلف طبیعی و انسانی مورداستفاده قرار گرفت.نتایج حاصل از این پژوهش نشان میدهد که علاوه بر عوامل طبیعی، مهم ترین عامل در وقوع پدیده زمین لغزش در منطقه عامل انسانی و برداشت بی رویه از محدوده لغزشی مورد نظر می باشد. Manuscript profile
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        5 - تحلیل و ارزیابی خطر زلزله به‌منظور شناسایی محدوده‌های ایمن در شهرهای جلگه‌ای (نمونه موردی: شهر بابل)
        Seyed Mostafa Hashemi Karobi Sadroddin Motevalli Gholamreza Janbaz Ghobadi Jalal Azimi Amoli
        According to the statistics, among the known risks, it is perhaps the most destructive and serious risk that threatens our country. Despite human progress in the field of knowledge, these methods have not been found in the direction of the sea or its prediction. The non More
        According to the statistics, among the known risks, it is perhaps the most destructive and serious risk that threatens our country. Despite human progress in the field of knowledge, these methods have not been found in the direction of the sea or its prediction. The non-universal nature of the earthquake prompts man to try to strengthen himself in the face of it and reduce the amount of waste and interpretations. The function of the city, the most important and obvious space for humans, will be disrupted in the event of an accident such as an earthquake and will no longer have the previous dynamics. The purpose of this research is to identify the safe area in the neighborhoods of Babol city to deal with earthquakes. The present study method is applied in terms of descriptive-analytical and field nature. The statistical population in this research included residents living in the twelve neighborhoods of Babol city, and the sample size was determined as 322 people based on Cochran's formula. GIS and SPSS software have been used to assess earthquake risks and identify safe areas. The findings of the research showed that based on 11 physical indicators to know the degree of vulnerability of the city, the southern region of Babol city is more close to the faults of the region, older buildings (average 30 years), high degree of enclosure and occupation level is higher than the standard level. of vulnerability. higher than other parts of the city. According to the result of the chi square test, the accessibility index with an average of 3.71 has the most impact and the social index with an average of 2.71 has the least impact in locating the safe spots of Babol city. Among the accessibility indicators, squares and terminals with an average of 3.91 have had the greatest impact in locating safe points, which according to the use of space in the city of Babol and their relationship with other accessibility indicators, the most optimal locations are Velayat Square, Basij Square, Kishori Square, and Awqaf Square. On 17 Shahrivar, Muziraj and Shahid Baz were appointed. The safe location of Babol city has more favorable conditions against risks after the use of urban land and after the construction of the city, it has a vulnerable situation. Manuscript profile