List of articles (by subject) Geomorphology
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Open Access Article
1 - Assessment of rock fall risk in Zafar town of Kermanshah using Conefall technique
Farangis Ariamanesh afsaneh sheikhi Amjad MalekiRockfalls are one of the most serious natural hazards in terms of victims and economic impact, besides their interaction with many other natural phenomena. rockfall, defined as the movement of a mass of rock, debris or earth down a slope rockfall hazard and landslide ri MoreRockfalls are one of the most serious natural hazards in terms of victims and economic impact, besides their interaction with many other natural phenomena. rockfall, defined as the movement of a mass of rock, debris or earth down a slope rockfall hazard and landslide risk analyses can be carried out using several methods. The aim of this paper is to study and evaluate the potential of rockfalls and landslides and zoning these areas. In this method, in accordance with the geometric dimensions, slop, the movement of the rockfall, their expansion, finally its effect on the study area have been tested. Ddigital data also Cone fall and Arc GIS software utilized to identify landslides in the study area. Rockfall risk area was calculated for slopes and two critical angles and the results were presented as a map of high fall risk zones. The results showing that the total area of rockfall is equal to 2467357 square meters and 520686 square meters of residential areas are under the risks of rockfall. Manuscript profile -
Open Access Article
2 - Monitoring the land subsidence phenomenon using differential radar interferometry technique (Case Study: Khanmirza plain, Chaharmahal and Bakhtiari Province)
Sadegh Karimi Mohsen pourkhosravani Ayda RamezaniLand subsidence is one of the environmental hazards caused by various factors, and especially in recent years, it has caused a lot of damage to human societies. The Khanmirza plain aquifer has also faced this phenomenon in recent years. The creation of wide gaps and cra MoreLand subsidence is one of the environmental hazards caused by various factors, and especially in recent years, it has caused a lot of damage to human societies. The Khanmirza plain aquifer has also faced this phenomenon in recent years. The creation of wide gaps and cracks on the surface of the plain and the release of gas from them makes the issue of subsidence important. For this reason, the present study tries to monitor and measure the amount of land subsidence in Khanmirza plain, and evaluate and analyze its relationship with the withdrawal of excess from underground water sources. For this purpose, in order to investigate the changes in the underground water level during 10 years and in two different time frames from the IDW geostatistics model and to estimate the subsidence of the land surface using the differential radar interferometric method and from the Sentinel-1A radar images during 5 years and in Three different time periods were used. The results of the research indicate that displacement of the earth's surface in different time periods is different and does not have a constant trend, while the trend of the drop of the underground water level has been increasing in the whole time period. Accordingly, according to the results of the research, there is no significant relationship between the indiscriminate extraction of underground water sources and the subsidence areas in Khanmirza plain. Manuscript profile -
Open Access Article
3 - Introducing and assessing the geotourism capabilities of Bahmaei city by comparing models Pereira and Reynard
hamid babolimoakhar saeid negahbanIn the present study, the geotourist attractions of the Bahmaei city were introduced by emphasizing the evaluation of the capabilities of six geosites by comparing the two methods of Pereira and Reynard, and thus the geotouristic value and position of each geosite was d MoreIn the present study, the geotourist attractions of the Bahmaei city were introduced by emphasizing the evaluation of the capabilities of six geosites by comparing the two methods of Pereira and Reynard, and thus the geotouristic value and position of each geosite was determined. The results of evaluation and scoring of the indicators in the models showed that based on Pereira model and from the point of view of geomorphological grade and in both scientific and visual values, Tang-e-Sarvak with a score of 4.49 and 3.85, respectively, and Lake Boram Alvan with scores, respectively. 3.96 and 2.91 have the most attraction. Also, in terms of management quality of Pereira model and in conservation and user values, Tang Sarvak with 67.5 and 94.05 points, respectively, and Boram Alvan with 66.66 and 85.83 points, respectively, have the highest points.On the other hand, the results of evaluation of geosites in the region based on Reynard model show that based on the scientific value of Tang Sarvak and Lake Boram Alvan with a score of 3.5 and 3.44, respectively, and Based on the added value, Tang-e-Sarvak and Tang-e-Maghar, with a score of 6.66 and 6.06, respectively, have the greatest potential for the development of geotourism. Finally, based on the results of the evaluation of the combined value of Tang-e-Sarvak and Brom-alwan, they have more values with a score of 3.55 and 2.98, respectively. Manuscript profile -
Open Access Article
4 - Evaluation of environmental sustainability in urban areas with the approach of fine dust problem using multi-criteria decision making technique of linear allocation and artificial neural network (case study: Ahvaz)
yahya abdolkarim neysi Mohammad Ebrahim Afifi marzeyeeh mogholiEnvironmental sustainability assessment is one of the most important tools in the process of sustainable development planning and therefore attention to it in policy-making and planning is inevitable. The purpose of this paper is to evaluate the environmental sustainabi MoreEnvironmental sustainability assessment is one of the most important tools in the process of sustainable development planning and therefore attention to it in policy-making and planning is inevitable. The purpose of this paper is to evaluate the environmental sustainability in urban areas with the approach of the dust problem using multi-criteria decision-making technique of linear allocation and artificial neural network in Ahvaz metropolis. In this research, first, by studying the theoretical foundations of the research, the criteria that are effective for environmental sustainability were identified. Then, the documentary and library method and referring to different departments and organizations were used to collect information in the theoretical part. However, the main information of the research was collected using field studies (completing questionnaires, observations and field studies). The research process was such that a questionnaire was designed to implement the methodology through the criteria obtained from the study of the problem literature and distributed among the people in 8 regions by stratified random sampling method. The sample size of the total areas was determined based on the unlimited Cochran's formula in the form of population classes of the areas. Keywords: Environmental stability, particulate matter, linear allocation, artificial neural network, Ahvaz Manuscript profile -
Open Access Article
5 - The role of climate on diversity and morphological evolution of carbonate karst karns using geomorphometric technique in climatic zones of Kalat basin, east of Kopeh Dagh
Hamid Nejadsoleymani reza doostan Saadolla Velayati abolfazl behniafar Mahnaz Jahadi toroghiThe aim of the present study was to investigate the role of climatic conditions on the genesis and morphological diversity of karst rocks of carbonate formations in Kalat Basin in the east of Kopeh Dagh. For this purpose, the experimental method (geomorphometric overlap MoreThe aim of the present study was to investigate the role of climatic conditions on the genesis and morphological diversity of karst rocks of carbonate formations in Kalat Basin in the east of Kopeh Dagh. For this purpose, the experimental method (geomorphometric overlap) based on climatic zoning model and laboratory studies (calcimetric and lime purity percentage) have been used. In the research process, first, the climatic zoning map of the basin was prepared through 25 stations with a statistical period of 35 years in the GIS environment and four climatic zones of the region were determined. Then, using geomorphometric techniques, ground samples were collected on 240 samples of three types of Karen with different morphology (linear, Pitcarn and Triticar). The results showed that the more humid the climate of the karst rock, the more not only the number of carnations per unit area will increase, but also the morphological diversity and evolution will increase. In fact, climate change has a very effective role in the genesis and development of surface karst Carns and there is a direct relationship between wetter climatic zones and morphological diversity and evolution of Carns in karst-forming formations, as in the climate zone (Q4). In humid climates, a variety of linear, depth and width of linear carnivores, triticarmens and peatcarns in temperate and humid climates (Q4.Q3) located at high altitudes to three to 10 times the size of carnivores Arises in arid and semi-arid climates (Q1, Q2). Manuscript profile -
Open Access Article
6 - Identifying the geotourism potentials of East Azarbaijan province and its development using geotourism models (case study: Zenuzagh, Kandavan, Ashtabin)
Mansour Rahmati Faezeh Bahadori Behrouz Nezafat takle elahe navazesh hasan nezafat takleGeotourism is one of the important types of ecotourism with a responsible and conservation-oriented approach that emphasizes the popularization of earth sciences and the cultural, social and economic development of the local community. The purpose of this research is to MoreGeotourism is one of the important types of ecotourism with a responsible and conservation-oriented approach that emphasizes the popularization of earth sciences and the cultural, social and economic development of the local community. The purpose of this research is to investigate the geotourism capabilities of East Azarbaijan Province using the Pavlova, Kubalikova and Hadzik model. Three study areas including the geotourist areas of Kandavan, Zanouzgh and Ashtabin have been selected. Based on Paulova's model, the results showed that the Kandavan geotourism area with the highest score in the positive factors promoting the competitiveness of geotourist destinations includes natural wealth with a score of (7) and the highest value among the negative items of competitiveness, budget deficit and the lack of skilled professionals with a score of (5) It creates the most negative impact on the attraction of tourists. Also, the results of the Kobalikova model showed that the Kandavan region has the highest score compared to other regions with a value of (9.25). In the Hadzik model, according to the study of scientific and surplus values according to the opinion of experts and tourists, the results showed that the average scores of the items in Kandavan geotourism area with the highest score are in the first priority. Therefore, it can be concluded that by evaluating and identifying the geotourism potentials of East Azarbaijan Province and developing the capabilities, it will lead to the development of geotourism areas and attracting tourists. Manuscript profile -
Open Access Article
7 - Geomorphological consequences of the area affected by the 2017 Sarpol-e-Zahab-Azgeleh earthquake
Amjad maleki Ali AbdolmelekiEarthquakes are considered as one of the most destructive natural disasters and at the same time the most sudden natural force that occurs as a result of failure and displacement of rocks below the earth's surface. Earthquakes are followed by many geomorphological hazar MoreEarthquakes are considered as one of the most destructive natural disasters and at the same time the most sudden natural force that occurs as a result of failure and displacement of rocks below the earth's surface. Earthquakes are followed by many geomorphological hazards and environmental consequences, which cause great damage to vulnerable areas. Following the earthquake of November 13, 2017 Sarpol-e-Zahab-Azgaleh, many slope processes such as (landslides, landslides, subsidence, etc.), as well as natural consequences (changes in the flow of springs), economic, human consequences (destruction) Residential areas, roads, destruction of agricultural lands, orchards and fish farming complexes) occurred in the area, causing damage to areas affected by the earthquake. In this research, using satellite images, field operations, the required information about the occurrence of geomorphological processes and natural and human consequences in the region were collected and their location was identified and determined on a map. In addition, with the help of Arc GIS software, zones Exposed to location threats and some of the consequences of earthquakes, their location and map were plotted. The results of the study showed that the activation of most processes, amplitude instabilities as a result of weak geological structure, monotonic and morphological conditions of the region are affected by the occurrence of earthquakes, which their past history also confirms this. Preparing a final map to identify the location of complications and consequences in the region as another result of this study can be of great help in reducing the loss of life and property during Manuscript profile -
Open Access Article
8 - Flood risk zoning in Nowshahr city using AHP-fuzzy method
sidmehdi razavi por Leila Ebrahimi kia bozorgmehr Mehrdad RamazanipourFlood is one of the important natural disasters that causes a lot of financial and human losses every year, and in order to reduce its losses and casualties, it has always been the attention of managers and planners. The purpose of this research is to prepare a flood ri MoreFlood is one of the important natural disasters that causes a lot of financial and human losses every year, and in order to reduce its losses and casualties, it has always been the attention of managers and planners. The purpose of this research is to prepare a flood risk zoning map in Nowshahr city. In this study, in order to achieve the goal of the research, first by studying and investigating the theoretical foundations of the subject, the effective factors in the occurrence of floods, including height, slope direction, slope, waterway density, distance From the river, soil, land use, geology, slope curvature, land type and precipitation were identified. Then, the maps of each of the mentioned criteria were prepared in Arc GIS 10.5. After preparing the layers of the effective factors in the occurrence of floods, using the opinion of 25 experts in this field, the layers and sub-criteria were weighted using the fuzzy hierarchical method. And in the last step, the obtained weight of each factor was applied to each of the layers in the ARC/MAP software environment, and the zoning map of flood risk was prepared using the fuzzy logic of the 0.9 gamma operator. According to the results of Vozandhi, the factors of rainfall, distance from the river, slope and land use are the most important factors of flood in the region. The zoning map shows the risk of flooding in Nowshahr city. Manuscript profile -
Open Access Article
9 - Geomorphic features of the November 2017 earthquake in Sarpol-e Zahab- Ezgele
Ali Rezapoor Iraj JabariThe 7/3 Richter earthquake of November 2016 in Sarpol Zahab, in addition to the loss of life and property, left many geomorphic effects. In this research, an attempt is made to identify the complications and evaluate the volume of these changes. First, based on the topo MoreThe 7/3 Richter earthquake of November 2016 in Sarpol Zahab, in addition to the loss of life and property, left many geomorphic effects. In this research, an attempt is made to identify the complications and evaluate the volume of these changes. First, based on the topography, the study area was divided into two parts: mountains and plains, and then the geomorphic effects caused by the earthquake were identified and investigated using aerial photos and satellite images and field visits. Then, the map of the Geological and Mineral Exploration Organization of the country was digitized using the ARC GIS software, and the slope map was prepared from the digital elevation model in the ARC GIS software. These data were used to better display the effect of faults, terrain, formations, domain instabilities and the cause of geomorphic effects caused by earthquakes. The results showed that the presence of resistant layers of Asmari limestone on the Aghajari, Marni and Gachsaran sandstone formations and the weakness and erodibility of these formations cause many geomorphological effects caused by earthquakes such as slope instabilities (Landslides, rockfalls, Deposit flows), ruptures, liquefaction, fluctuations of the underground water level. In addition to the identification of geomorphological effects caused by earthquakes, their location and location in relation to other geological factors were mapped and the role of geomorphological effects in creating secondary hazards and the comparison of these effects in two topographical units of mountains and plains were investigated. Manuscript profile -
Open Access Article
10 - Zoning and prioritizing the context of the 6th area of Kerman city against earthquakes using remote sensing techniques
Maryam Nohe sara Malihe Zakerian S.Ali Almodaresi mostafa khabazi Mohamad Hossain SaraiToday, the vulnerability of cities and especially old and worn-out structures against earthquakes is an important issue for environmental risk experts. The city of Kerman, due to its location in the tectonic zone of central Iran and having large and deep faults and frac MoreToday, the vulnerability of cities and especially old and worn-out structures against earthquakes is an important issue for environmental risk experts. The city of Kerman, due to its location in the tectonic zone of central Iran and having large and deep faults and fractures from a geological point of view, can be the source of huge crises, severe losses and casualties; Therefore, in this research, first, by using ASTER satellite images of 2007, the worn-out tissues of Kerman city were identified using SVM. In this study, the kappa coefficient of 76% was determined for all classes, and the kappa coefficient of 59% of the worn-out tissue was determined. The city of Kerman was identified. The results showed that the support vector machine classification method has the ability to detect nearly 75% of the worn-out fabric of the area, and the SVM method has worked very well in identifying the six areas of worn-out urban fabric. Manuscript profile -
Open Access Article
11 - Evaluation of areas prone to urban development with emphasis on geomorphological capabilities and risks (case study: Isfahan city)
Mohammad Ebrahim Afifi khalil alinejad marzeyeh mogholiThe necessity of knowing the characteristics of the natural environment in order to clean and identify the suitable places for the creation of monuments and buildings from the unfavorable areas becomes clear. It is in line with gaining this kind of knowledge that effect MoreThe necessity of knowing the characteristics of the natural environment in order to clean and identify the suitable places for the creation of monuments and buildings from the unfavorable areas becomes clear. It is in line with gaining this kind of knowledge that effective steps can be taken in choosing the most suitable place for the creation and expansion of cities. The application and role of geomorphology in sustainable urban development is evident through the basic research required for urban projects as well as environmental awareness and standardization for urban planners and policy makers. Case in point, the impact of geomorphological phenomena on the city can be located in , location and evolution of the city, physical expansion and determining the directions of the expansion of the city, morphology of the city and also classified urban constructions. Therefore, the necessity of preliminary studies for the establishment of cities and human settlements is felt more and more, and it seems necessary to create written programs that fit the environment and apply them in decisions at different scales. Considering that, from the point of view of hazard analysis and management, most of the damages are caused by the incorrect location of buildings and structures, the importance and necessity of knowing the characteristics of natural environments in order to distinguish and distinguish suitable places for building buildings and structures from unfavorable areas is known. In this research, Manuscript profile -
Open Access Article
12 - Investigating karst development using hydrological and hydrochemical characteristics of springs (case study: Roein basin in North Khorasan province)
mohammad motamedirad Leila gholi Mokhtari Shahram Bahrami Mohammad ali zanganeh asadiIn order to study the development of karst, using the hydrological and hydrochemical characteristics of the springs in Roein Basin, 19 springs were identified in the study area.To calculate and analyze parameters such as discharge and hydrograph of springs, Recession Co MoreIn order to study the development of karst, using the hydrological and hydrochemical characteristics of the springs in Roein Basin, 19 springs were identified in the study area.To calculate and analyze parameters such as discharge and hydrograph of springs, Recession Coefficient, volume of dynamic storage, Estimate of recession coefficient, drawing Piper diagram, ratio of calcium to magnesium, saturation index, determining the type of reservoir rock. And the karst geomorphology of the study area was investigated.The hydrograph of the springs in the study area shows the delay time between the peak rainfall and the peak discharge in the springs, where the maximum discharge of the spring reaches its maximum with a delay of about two or three months. The low Recession Coefficient and the volume of dynamic storage of the aquifer indicate the low development of karst. The saturation index shows that the spring water samples collected from the study area are all saturated and supersaturated. Piper's diagram in the study area showed that most of the springs have bicarbonate-calcic-magnesic type. Based on the index of Ca/Mg ratio, they have a dolomite aquifer. The type of reservoir rock in the region showed that the type of reservoir rock in the region is dolomite and calcareous dolomite and the geomorphology and field observations in the region showed that there are no advanced karst forms in the region.It can be said that the karst system of the region is not developed and many karst geomorphological forms are not observed in the region. Manuscript profile -
Open Access Article
13 - The role of natural factors in the settlement of ancient sites Payab Simreh 2 Basin Using the AHP model
Farzaneh Gholami .Mehran Maghsoudi shirin mohammadkhanThis research investigated the relationship between the natural and geomorphological structures of the region, including: altitude, temperature, distance from the main river and distance from the drainage network, slope, geology, land use and the type of landforms, on t MoreThis research investigated the relationship between the natural and geomorphological structures of the region, including: altitude, temperature, distance from the main river and distance from the drainage network, slope, geology, land use and the type of landforms, on the distribution of ancient sites. In this research, hierarchical analysis model was used to spaial selection of the area. After analyzing the data, the relative weight of the options, sub-criteria, criteria and the final weight of the options of each layer was calculated in Excel software. The findings of the research showed that the settlement of the areas was inversely related to the height factor, the distance from the permanent river and the slope, among the geomorphological factors. Barracks and Tepe Mahor have the highest coefficient of importance. About 89% of the enclosures are located in suitable places and less than 3.5% of the enclosures are located in inappropriate locations. According to Pearson's correlation, the factors of slope, height, distance from permanent river were identified as the most important factors in the distribution of ancient sites in bottom Seymareh 2 basin. Manuscript profile -
Open Access Article
14 - Evaluation of areas prone to urban development with an emphasis on geomorphological capabilities and risks (case study: Isfahan city)
Khalil Alinezhad mohammad ebrahim afifi marzie moghaliFor the basic development of cities, it is necessary to know the characteristics of the environment, and effective steps can be taken in the location of buildings and the expansion of cities. In this research, the zoning criteria of areas prone to urban development were MoreFor the basic development of cities, it is necessary to know the characteristics of the environment, and effective steps can be taken in the location of buildings and the expansion of cities. In this research, the zoning criteria of areas prone to urban development were determined with emphasis on geomorphological capabilities and risks in Isfahan city. Then the criteria were checked in terms of coordinate system and data accuracy. AHP model was used to evaluate the value of the criteria relative to each other. Pairwise comparison of the criteria showed that faults with a weight of 0.420 had the greatest role in the development of the city according to the experts, and the criterion of distance from the road with a weight of 0.072 had the least effect according to the experts. Finally, the obtained weights were applied to the layers. The final zoning map of the criteria with the AHP model showed that there is a lot of potential for development in 30,287 hectares of the area of the study area. These areas are located in the city center and areas with low slope and low altitude and near the river. The areas with very low talent are 1020 hectares, which are observed in the northwest, east, and south of the investigated area. The classification results of satellite images from 2000 to 2020 showed that the area of barren and man-made areas increased by 1319.15 and 4744.44 hectares, and the area of agriculture and other uses decreased by 4370.1 and 1831.03 hectares. The development of the city is in the center and the outskirts of the city, and according to the zoning map, the southern areas of the city are unsuitable for expansion, but currently, according to the classification map, the expansion of the city is observed in these areas. With the optimal location of the physical development of cities, the negative effects of the city development from the environmental, natural and human factors point of view are reduced. Therefore, it is important to examine the physical development and orientation and factors affecting urban development. Manuscript profile