Geographic Data
Hadiseh Sabzi Sorkhani; Abdollah Faraji; Hossein Asakereh
Abstract
Extended AbstractIntroductionClimatic conditions have a significant impact on human living conditions and comfort. From the earliest times, humans have reacted to fluctuations in weather conditions Therefore, it has designed its living environment in accordance with the climatic conditions. One ...
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Extended AbstractIntroductionClimatic conditions have a significant impact on human living conditions and comfort. From the earliest times, humans have reacted to fluctuations in weather conditions Therefore, it has designed its living environment in accordance with the climatic conditions. One of the most important measures in identifying a comfortable climate is to assess the conditions of the human living environment. Which determines the level of human comfort in the environment. Meteorological variables and bioclimatic indicators are needed to assess the conditions of human comfort in the environment.. Therefore, urban planners and regional planners need useful and at the same time practical indicators in order to optimize the environment and determine the best time for human comfort. Human comfort conditions provide very good information for planners by evaluating bioclimatic indicators. The information obtained from this research provides appropriate suggestions and strategies for improving the situation in each region. To know the range of comfort climate (optimal and optimal climate) can not be enough to describe the climatic elements of the region, including temperature, humidity, wind and radiation. Rather, the type of climate in terms of comfort or lack of thermal and climatic comfort should be determined quantitatively in the form of a general indicator and a combination of all these climatic elements. Many factors affect the tourism industry, one of the most important of which is the climate. Climate plays a role as one of the most important local resources in the tourism industry. Awareness of climatic comfort plays an important role in human life and activities, and physiological comfort is closely related to climatic factors. Therefore, the study of climatic parameters affecting the climatic comfort of work seems necessary.Gilan province is one of the most populous regions of the country and ranks first in the country in terms of population density. In addition to various economic activities, this province hosts millions of people from all over the country every year due to the existence of various attractions (especially the Caspian Sea). And it is one of the touristic provinces of the country And studying the climate comfort of this province can be an important step in planning for tourist reception and its requirements. In this study, the climatic comfort of Gilan province has been studied.Materals and methodsFor this purpose, climatic data from 11 synoptic stations (Rasht, Astara, Anzali, Deilman, Kiashahr, Lahijan, Manjil, Masouleh, Jirandeh, Talesh and Rudsar) including monthly average temperature, average maximum and minimum temperature in degrees Celsius, The monthly average of relative humidity as a percentage, the average of sunny hours and the number of rainy days during the statistical period of 1995 to 2020 have been received from the Meteorological Organization of the country. Then in SPSS software, Excel database was created And processed the data and calculated the average of all the mentioned parameters on a monthly basis And deficiencies were corrected And through the Tourism Climate Comfort Index (TCCI), the calculations are performed And after sorting and analyzing the climatic conditions, the study area has been studied Thus, based on the Tourism Climate Comfort Index (TCCI), zoning maps of the province were drawn in GIS software . Finally, the results are analyzed and interpreted as maps.Results and discussionApril, south of the province (Manjil), May, center, Caspian Sea coast, part of the northeast and south of the province (Rasht, Anzali, Lahijan, Deilman, Jirandeh), August, east of the province (Rudsar), September, center , East and part of the south of the province (Rasht, Rudsar, Deilman) and October, south of the province (Jirandeh) has pleasant and favorable conditions. All tourism activities are recommended to tourists.ConclusionThe results of the conducted investigations show the existence of various types of comfortable weather conditions for tourism in Gilan province. The months of May and June in most parts of the province have very favorable and pleasant conditions and the climatic conditions are suitable for all kinds of tourism activities. In the cold season of the year (January, February and December) in all parts of the province (especially the high areas such as Dilman and Masuleh, etc.), very unfavorable (cold) conditions prevail, and in the hot season of the year (July and August) the conditions are It is very unfavorable (heat) in most of the studied areas (especially coastal areas due to high humidity). All in all, in this research, all kinds of tourism activities have been targeted according to each season and each region
Seyed Ali Ebadinejad; Mohammad Reza Pourgholami-Sarvandani; Ali Asghar Mohammadpour; Ali Osanlu
Abstract
Extended Abstract Introduction Along with other environmental factors, climatic conditions are among the most important factors affecting social, moral and cultural problems. People behave differently in different climates. Quetelet and Gurreydeveloped crime statistics in Franceandinvestigatedits relationship ...
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Extended Abstract Introduction Along with other environmental factors, climatic conditions are among the most important factors affecting social, moral and cultural problems. People behave differently in different climates. Quetelet and Gurreydeveloped crime statistics in Franceandinvestigatedits relationship with physical environment.Thus, they studied the effects of geography and climatic conditions on human behavior, including criminal behavior. In Climate and Crime, Ellen J. Cohen argues that situational approaches, selected rationaltheories and routine activity theory all suggest that climate has a major impact on the rate of crimes and criminal behaviors. Based on their observations, Quetelet and Gurreyformulatedthethermic law of delinquencyin criminology. Based on statistical studies, they concluded that violent crimes are more frequent in hot seasons and hot regions, while in cold regions and cold seasons, more deceptive crimes such as crimes against property requiring thinking and imaginationoccurmore often. It should be noted that crime is a social phenomenon affected by various factors. Environmental conditions can also intensify the threat of human behaviors. The present study seeks to investigate the relationship between the climatic element of temperature and the occurrence of crime in Shiraz, Abadeh and Larestancounties of Fars province? Materials & Methods The present study is applied in nature and purpose, while taking advantage of an analytical-descriptive method. 3 meteorological stations of Shiraz, Abadeh and Larestan were studied here. Investigated data included the seasonal average temperature and seasonal rate of crimes for the2008-2013 period. Seasonal rate of crimes including social corruption, theft, forgery, strife, mischief, intimidation and coercion, smuggling, drug-related crimes, murder, and suspicious death were investigated in Shiraz, Abadeh and Larestan, which have a meteorological station. Crime statistics were collected from the Prevention Police Department of Fars province Law Enforcement Force and statistics related to the climatic elements of temperature were obtained from Fars Meteorological Department. Different descriptive and inferential statistical methods were used to analyze the data and Pearson correlation coefficient test was used in inferential statistics. Data analysis in the present study included two stages. First, the seasonal and annual percentage of various crimes were studied in each of the mentioned cities. In the second stage, the correlation coefficient between the average temperature and the total (seasonal) number of crime occurrence were investigated. Discussion Investigation of various crime occurrence in Shiraz, Abadeh and Larestancounties of Fars province revealed that in spring, strife and affray (47.11), theft (23.16) and social corruption (19.16) were the most frequently committed crimes in Shiraz. However, intimidation and coercion (0.32), smuggling (0.24), forgery (0.20) and murder (0.05) had the lowest frequency in Shiraz during spring. In summer, strife and affray (47.71), theft (24.64) and social corruption (20.95)are considered to be the most frequent crimes, while intimidation and reluctance (0.33), smuggling (0.23), forgery (0.20) and murder (0.03) arethe least frequent crimes, respectively. In autumn, strife and affray (44.36), theft (27.71) and social corruption (18.24) were more common, whileintimidation and coercion (0.33), smuggling (0.27), forgery (0.26) and murder (0.04) had the lowest frequency. In winter, strife and affray (43.92), theft (29.99) and social corruption (16.84) were the most frequently reported crimes,whileintimidation and coercion (0.35), smuggling (1.4), forgery (0.24) and murder (0.02) were the least frequently reported crimes. Findings indicate that during the 2008-2013 period, strife and affray (45.86), theft (28/28) and social corruption (18.84) were the most common crimesin Shiraz city, while smuggling (0.43), intimidation and coercion (0.33), forgery (0.22) and murder (0.03) were the least common crimes. Generally in the three counties, crimes against the person such as strife and affray, murder, mischief, intimidation and coercion were more frequently reported in warm seasons (spring and summer). However, crimes against property, such as theft, were more frequent in cold seasons (autumn and winter). Strife and affray(0.95) in Shiraz have the highest correlation with the seasonal average temperature. There is a negative correlation between the crime of strife and affray and the seasonal average precipitation in Shiraz. The same relationship existsbetweenstrife and affray and the seasonal average relative humidity in Shiraz. In Larestan, drug-related crimes (-0.97) have the highest negative correlation with the seasonal average temperature. In Abadeh city, social corruptions (0.99) have the highest correlation with the seasonal average temperature. Conclusion: In total, crimes against the person, such as strife, murder, mischief, intimidation and coercion were more commonly reported in the warm seasons of the year (spring and summer) in the three counties on the whole and separately. However, crimes against property such as theft had a higher rate of occurrencein the cold seasons (autumn and winter). Therefore, as crimes against the personare more common in warm seasons and crimes against property are more frequent in cold seasons, it can be concluded that QueteletandGurrey’s thermic law of delinquencyis in force in all the three specified counties. However, this law is not generalizable and it cannot be concluded that crimes against property occur more in cold regions and crimes against the person occurs more in warm regions of Fars province. In this respect, this law only applies to Larestan which is located in the warm region of the province.
Mohammad Reza Baaghideh; Rasul Sarvestan
Abstract
Extended Abstract Introduction Like every other human activity, military activities are also affected by weather conditions. From a military perspective, climate studies are very important. In wartime, air and topography are more influential than any other physical factor, such as weapons, equipment, ...
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Extended Abstract Introduction Like every other human activity, military activities are also affected by weather conditions. From a military perspective, climate studies are very important. In wartime, air and topography are more influential than any other physical factor, such as weapons, equipment, and logistics. These factors have been somehow effective in most victories and defeats. Therefore, military forces need special equipment, special training and adaptation to environmental conditions. Military commanders pay special attention to the daily mean minimum and maximum temperature, as well as very high or very low temperature. Troops usually need two weeks to adapt to climate conditions, but in extreme heat they may never reach their full efficiency. The importance of climatology in military plans is summarized in two stages: first, a preliminary stage in which time and location for the establishment of bases and deployment of military equipment are predicted, and the second stage in which atmospheric phenomena are linked and connected with the planed military operations. Accurate understanding of climate elements and their effects can lead to the discovery of positive and negative points and, as a result, a better planning for the promotion of military operations. Therefore, researchers have always been interested in climate parameters and investigating the effects of these parameters on defense, military, and passive defense discussions have always been inevitable. Keywords: Military forces, climate, geographic information system, FTOPSIS Materials and Methods After performing secondary research and reviewing different resources, the most important climate parameters affecting the performance of military forces were identified and the initial database was formed. Data was received from Iran Meteorological Organization for 21 weather stations in Khuzestan province regarding a period of 25 years (1988-2013). Then, database was compiled using the received data and the geographic features of the stations (longitude, latitude and elevation). These parameters include: Long-term average annual rainfall, average number of dusty days in each year, mean maximum temperature, long-term average of wind speed, wind direction, long-term average of sunshine duration, average humidity In order to map climate parameters, each parameter-related layer was prepared using interpolation method and IDW model. Then, each layer was weighted using decision-making process. Afterward, each layer was classified into 5 categories, each of which was weighed according to its importance. In the next step, the fuzzy TOPSIS model was used to analyze collected data. Results and discussion Investigating the characteristics of precipitation layer and the weight of each category proved that the highest weight is related to the 670-570 category and the lowest weight is related to the 200-100 mm category. The highest level of precipitation (670-570 mm category) has occurred in Dehdez and Izeh, and the lowest level of precipitation (200-100 mm category) has occurred in Bostan, Hanijan, Mahshahr, Shadegan and Abadan stations. The maximum temperature layer in Khuzestan province showed that the highest temperature (44-48 ° C) had a weight of 4.52, while the lowest temperature in 19-26 ° C category had a weight of 0.73. Gotvand and Ahwaz agricultural research station have the highest wind speed (7.28-8.59 knot) and a weight of 2.17 and the lowest average wind speed (with the weight of 1.33) is recorded in Hendijan, Omidieh, Behbahan, Lali and Dehdez. The province wind direction layer showed that western winds had the highest weight (2.18) and southern winds had the lowest weight (0.96). Conclusion Understanding climate and its impact on transportation of troops, flight of fighters, movement of naval fleets, transport of heavy equipment, and performance of weapons in both sides of the war are among the most important determinants of victory or defeat in wars. Climate is one of the most important factor that directly affect military plans, and even national strategies, tactics, doctrines, command, organizational structure, optimal combination and type of navy-land forces, military and space equipment, collection of military information and clothes, maintenance, construction and support. In this study, eight factors including rain, temperature, dust, wind speed, wind direction, sunshine duration, humidity, and altitude were used in a combined approach. Geographic Information System and FTOPSIS model were applied in this approach. Results indicate that Khuzestan province is classified into five categories (from very unfavorable to very desirable) in regard to military activities. Most of the northeastern mountainous areas of the province are highly desirable, with excellent defensive capabilities. In Dehdez and Izeh, the proportion is somehow favorable. Eastern and southern parts of the province are very undesirable regarding the impact of climate parameters. The results also showed that wind speed and temperature are the most effective factors influencing the performance of military forces in the province.
Taghi Tavousi
Abstract
Extended Abstract
Introduction
Land degradation process that affects the arid, semi-arid and sub-humid zones of the globe has been interpreted as desertification that great many debates have grown up around the concept. A fundamental debate has been whether desertification actually exists? If ...
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Extended Abstract
Introduction
Land degradation process that affects the arid, semi-arid and sub-humid zones of the globe has been interpreted as desertification that great many debates have grown up around the concept. A fundamental debate has been whether desertification actually exists? If so, how it might be defined, measured and assessed (Herrmann and Hutchinson, 2005). In fact, the term "desertification" was used by Aubreville (1949) to describe the change of productive land into desert, which was the result of human activities in the tropical forest zone of Africa (Tavousi, 2010).However, the United Nations Conference on Desertification (UNCOD), held in Nairobi in 1977, launched the desertification issue into the global arena (Herrmann and Hutchinson, 2005). Desertification as defined in the United Nations Conference on Environment and Development (UNCED) and also in the United Nations Convection to Combat Desertification (UNCCD) is land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climatic variations and human activities (Cardy, 1993). Also, on the basis of this Convention, arid, semi-arid and sub-humid arid regions are regions in which the ratio of precipitation to potential evapotranspiration is in the range of 0.05 to 0.65 (Tavousi et al, 2010).
Determining the contribution of climatic variability to desertification is very complicated, and it is virtually impossible to separate the impacts of drought and desertification, because these processes often work together (Nicholson et al., 1998). Although now a more understanding of climatic variability has emerged, the understanding of the causes of this variability is still unfolding.
Two prevalent paradigms are expressed for climatic variability: One Internal feedback mechanisms such as Biophysical feedback mechanisms between land surface and precipitation due to modification of land cover characteristics in dry land regions and the other are External forcings, such as influence of the El-Nino Southern-Oscillation phenomenon and other major driving forces that promote changes in atmospheric circulations. Most probably, nor of these two prevalent paradigms (internal and external forcings) are mutually exclusive. Relative contributions of climate variability and human agency to desertification will likely depend on specific regional contexts (Herrmann and Hutchinson, 2005).
On the basis of UNEP index we observed that most areas of Iran have arid and semi-arid climates. With respect to the desertification intensity class, these two kinds of climates have classes of severe and very severe conditions. After those two kinds of climates, ultra arid, dry sub-humid, very humid and sub-humid climates cover most areas in Iran respectively (Alijani et al, 2015).
The purpose of this study was to investigate the trend of fluctuations in annual precipitation and the trend of UNEP aridity index of diverse climatic zones in the west and northwest of Iran.
Materials & Methods
In order to study the increase of aridity index in diverse climatic zones of the west and northwest of Iran, in the first step, the area was isolated by cutting 32 N latitude and 50 E longitude. Then, annual temperature average and total annual precipitation data was provided from 43 meteorological stations in the study area during the period of (1981-2010).
This period was divided into three decades: 1981-1990, 1991-2000 and 2001-2010. Then, for each decade, a zoning map was drawn.
In order to classify the climate, evaluate the Aridity Climatic Index and displacement of climatic zones in the northwest of Iran, the aridity index of UNEP (United Nation Environment Program) was used. Also, Kendall's nonparametric test was used to determine the significance of changes in annual precipitation.
Since the air temperature determines the potential evapotranspiration, the UNEP relationship is expressed based on the average total of annual precipitation relative to the average total of annual evapotranspiration.
Discussion and Results
In order to analyze the change in the Aridity Coefficient for each year, the UNEP index was calculated for 43 weather stations in the west and northwest of Iran. Based on the average UNEP index in each decade, the zoning map of the Aridity Index was drawn for three consecutive decades. Then, the UNEP Aridity index was subtracted in successive decades and the change occurred in the studied area was investigated. The spatial displacement of climatic zones over these three decades, represents the increase in the aridity coefficient and expansion of the territory of arid and semiarid climate in the area.
Conclusion
The results clearly indicate climate change from humid climate to semi-humid arid climate and semi-humid arid climate to arid climate. Based on Aridity Index of UNEP, in most parts of the northwest of Iran investigated in this study, the coefficient of Aridity has increased from the moderate risk class to severe and very severe Aridity. Although the results of Mann-Kendall test showed that 32 stations have a negative trend, this trend is significant for the 6 stations of Urmia, Tabriz, Khoy, Miandoab, Piranshahr and Sanandaj at = 0.05 .
sajad ferdowsi; Hamid Reza Shahmohammadi; Mahboobeh Jalali
Abstract
Extended Abstract
Introduction
In recent years, the economic benefits of tourism has attracted attention of many countries that have maritime border. In this regard, Caspian Sea which located in the northern part of Iran, has special potential in the field of tourism and it can be seen a bright future ...
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Extended Abstract
Introduction
In recent years, the economic benefits of tourism has attracted attention of many countries that have maritime border. In this regard, Caspian Sea which located in the northern part of Iran, has special potential in the field of tourism and it can be seen a bright future in the field of tourism just with a holistic approach in this field. Meanwhile, climate is the most important factor in tourism development. General Specifications of Destination Weather and daily, monthly and seasonal changes, temperature, precipitation, humidity, radiation, wind and other elements of the climate are important information for tourism destinations so that the applicant can plan in terms of travel time, type of clothing and equipment required. Tourism climatology includes a variety of topics about two applied issues of climate and tourism which is linked to the principles of atmospheric science, and in particular the study of climate on the one hand, and tourism, recreation and leisure on the other. In general, the present study seeks to answer the following question: What are the most appropriate timeframe for the development of tourism on the southern shores of the Caspian Sea?
Materials & Methods
In this research, the southern margin of the Caspian Sea, including three provinces of Golestan, Mazandaran and Gilan, as areas adjacent to the sea, have been studied and analyzed. Accordingly, 15 cities of Mazandaran province, 4 cities of Golestan province and 9 cities of Gilan province are located on the southern margin of the Caspian Sea that they are analyzed in terms of tourism climate index. The present study has been done on the method of descriptive- analytical and with aims of identifying the most desirable periods of climatic conditions for the development of tourism. The required data is obtained by method of library through documents, journals and books. In this regard, the required climatic parameters were collected from 2010 to 2014 in a 5-year period. In order to determination the appropriate timeframe for tourism development has been used from the method of TCI (Tourism Climate Indicator).
Results & Discussion
Based on the collected data, the TCI was calculated for each of cities along the Caspian Sea with a description of its descriptive class in different months of the year. The analysis of TCI indicate that respectively June and July are the most desirable time in terms of climate for the presence of tourists on the coast and the Caspian Sea. So that of the 28 neighboring cities of the Caspian Sea in June, there are 6 cities with very good climatic conditions, 6 cities with good climatic conditions, 12 cities with acceptable climatic conditions and 4 cities with low favorable climate conditions. Also In July, there are 6 points with very good conditions, 4 points with good conditions, 15 points with acceptable conditions and 3 points with low favorable climate conditions. In the meantime, in terms of the desirability of the climatic conditions, after June and July, the months of September, August, April, March, October, January, May, February, November and December are located.
Conclusion
In this research, the climatic conditions of the southern margin of the Caspian Sea, as one of the most important criteria for the development of tourism, were investigated. The results indicate that the southern margins of the Caspian Sea, each within a given time period, can provide favorable climatic conditions in order to attract tourists to these beaches. Somehow that in most of the months of the year you can see the favorable climate conditions for tourism in the area adjacent to the sea. The results of TCI indicate that over the years it can be seen areas with desirable climatic conditions in the Caspian Sea which it can be provided growth and development of tourism in this area with planning in appropriate time and place. Desirability of climatic conditions in the four months and coincided with the beginning of summer vacation, is a special opportunity to promote tourism and benefit from its significant economic advantages. In this regard the months of June, July, August and September is the most desirable periods for planning to presence of tourists and delivery of services to them. Also the months of April, March, October, January, May, February, November and December due to desirability climatic conditions are the next priority. Of course this does not mean that in these months, tourism remains silent, but the ratings is only Desirability of climate in different months. In fact, in almost all months of the year can be seen a favorable climate for the tourism in the area neighboring the sea.
Ali Hanafi
Volume 23, Issue 89 , May 2014, , Pages 67-71
Abstract
Weathering happens with the breaking and transformation of ground surface stones, due to physical, chemical or biological processes. Wind, water, climate, plant and animal factors can cause weathering. The present study is performed based on Louis Peltier models in which two variables of average temperature ...
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Weathering happens with the breaking and transformation of ground surface stones, due to physical, chemical or biological processes. Wind, water, climate, plant and animal factors can cause weathering. The present study is performed based on Louis Peltier models in which two variables of average temperature and precipitation were used. Applying these two variables, Peltier distinguished 7 models which can describe different forms of weathering. Among these, two models of weathering regimes and morphogenetic regimes were investigated in Iran and related regimes of each station were determined based on the related graphs. To study and investigate weathering and geomorphologic areas across the country, climatic data including average annual precipitation and temperature were collected from 143 stations in Meteorological Organization portal with appropriate data and statistical period. The collected data were registered in a GIS database. After investigating the temperature and precipitation trend of the country, the regime of each station was determined using Peltier models and a weight was assigned to it. Then, they were registered into the mentioned database and related maps were produced in Arcmap. Results indicate that 5 of 9 morphogenetic situations of Peltier models occur in Iran climatic situation, so the central plateau, east and west of the country are mostly located in arid zone. Mountainous areas, Zagros and Alborz elevations have semi-arid regime, and stations located in southern coasts of the Caspian Sea and western hillsides of Zagros have a mild regime. Regarding weathering, areas in the central plateau and southern part of the country have a very low level of weathering, mountainous areas like Zagros and Alborz elevations and North West of the country have a weak level of mechanical weathering. Some stations in Northern Alborz and western hillsides of Zagros have average chemical weathering with frost and in some stations on the southern coasts of the Caspian Sea, severe chemical weathering occur.
Ali Hanafi; Iraj Hatami
Volume 22, Issue 87 , November 2013, , Pages 24-28
Abstract
Climatic zoning and identifying influential factors and elements in each zone are considered to be the most important factor in environmental planning. Climatic research and climate map can be used in large, medium, small and local scales. Related researches in Kurdistan have been very limited. The present ...
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Climatic zoning and identifying influential factors and elements in each zone are considered to be the most important factor in environmental planning. Climatic research and climate map can be used in large, medium, small and local scales. Related researches in Kurdistan have been very limited. The present article investigates climatic features of Kurdistan province in a 30 year statistical period using weather stations and Information Technology System software. After qualitative and quantitate control of meteorological data and elimination of statistical deficiencies, two important climatic elements (temperature and precipitation) were investigated across the province. Afterwards, isothermal and isohyetal maps and the correlation between temperature and rainfall with altitude were produced using inverse distance weighting method. Conformity of temperature and rainfall with digital elevation model shows a significant inverse correlation between temperature, rainfall and altitude. So that with an increase in altitude, temperature and rainfall decreases. De Martonne and Embergent methods were used for climatic classification of the province. In De Martonne classification, Kurdistan province was divided into four climates, i.e. arid, Mediterranean, humid and very humid. Embergent method classified the area into four climates, i.e. cold semi-arid, highland climate, cold semi-humid and cold humid. Finally, zoning process was performed in GIS environment and inverse distance weighting method was used for spatial interpolation and spatial data analysis to produce Kurdistan climate map. Resulting zoning maps indicates that semi-arid and Mediterranean climate are dominant and only a small zone in the western parts has humid and semi-humid climate.
Behnam Moghani Rahimi; Zahra Porbar
Volume 22, Issue 87 , November 2013, , Pages 64-67
Abstract
The importance of climatic effects on architecture necessitates exclusive studies and researches, especially in our country which possesses climatic diversity and diverse architecture. Climate can be defined as an organized collection of vegetation, precipitation, heat, temperature, and sunlight in the ...
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The importance of climatic effects on architecture necessitates exclusive studies and researches, especially in our country which possesses climatic diversity and diverse architecture. Climate can be defined as an organized collection of vegetation, precipitation, heat, temperature, and sunlight in the area. In order to identify local architectural structures and increase the level of comfort among its inhabitants, we inevitably have to consider local climatic features.
If we reach an awareness of climatic elements and direction of buildings in Shiraz, recognition of appropriate materials and choosing appropriate size for windows, we can think of measures so that its inhabitants feel comfortable and can supply the necessary cooling and heating for their house. Information collection was performed in the form of a secondary, documentary and survey research.
Taghi Tavoosi; Mohsen Armesh
Volume 21, SEPEHR , February 2013, , Pages 28-30
Abstract
From a meteorological point of view, frost occurs when minimum daily temperature decreases to 0 °C. This study seeks to predict and rout early autumn frosts in Khash city. To study early frosts, the first day of frost in the statistical period of 1986 to 2008 was investigated. Probabilities and return ...
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From a meteorological point of view, frost occurs when minimum daily temperature decreases to 0 °C. This study seeks to predict and rout early autumn frosts in Khash city. To study early frosts, the first day of frost in the statistical period of 1986 to 2008 was investigated. Probabilities and return periods of autumn frosts (early frosts) were estimated using normal distribution and Log Pearson type 3 distribution. In Log Pearson type 3 distribution, there is 99 percent probability that frost does not begin before 8 October, 95 percent probability that frost does not begin before 15 October. In normal distribution, there is 95 percent probability that frost does not begin before 12 October. Coefficient of data change is 21.2 which indicates relatively high frequency in the time of frost. A graph of the first day of frost and its 11 year average was prepared and frost occurring process was routed. Results indicate that during the last decades frost has retreated toward winter.
Esmaiil Shahkoubi
Volume 20, Issue 79 , November 2011, , Pages 52-57
Abstract
In this article, we try to determine the position of climate and geography in sustainable development of the province in relation to the tourism industry and its role in regional planning. It is tried to form such a link between the natural and historical powers of the province with climate and tourism, ...
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In this article, we try to determine the position of climate and geography in sustainable development of the province in relation to the tourism industry and its role in regional planning. It is tried to form such a link between the natural and historical powers of the province with climate and tourism, so that in addition to the Iranians, the attention of the newly independent countries of Central Asia, including Turkmenistan, Kyrgyzstan, Uzbekistan and Kazakhstan be attracted toward enjoying this unique natural wealth. Golestan is the "treasure of ecotourism".
Hossein Asakareh; Mohammad Savari
Volume 19, Issue 75 , November 2010, , Pages 92-96
Abstract
According to statistics thousands of people die or become disabled in road accidents every year. Several factors may play a role in the occurrence of accidents, among which are road geometric design, environmental conditions and human factors. Among the environmental factors that affect the safety and ...
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According to statistics thousands of people die or become disabled in road accidents every year. Several factors may play a role in the occurrence of accidents, among which are road geometric design, environmental conditions and human factors. Among the environmental factors that affect the safety and sustainability of transportation, we can mention the role of climatic phenomena such as precipitation, wind, temperature, fog, dust and humidity. The axis of Ahwaz-Susangerd, 55 km long, is among the main roads linking to Hamidieh, Susangerd, Hoveizeh and Bostan through Ahwaz. In this study, the analysis of road accidents has been conducted with climatic attitude and in order to investigate the relationship between spatial distribution of accidents and elements-climatic phenomena such as precipitation, fog and dust, temperature, humidity and wind. In order to investigate the role of climatic phenomena in the occurrence of accidents, the hourly meteorological data of Ahwaz, Abadan, Bostan and Hamidieh weather stations have been used and the meteorological situation of the moment of accident has been extracted through interpolation of these data. Also, police information of road accidents has been used. The road map of Southwest of Khuzestan with a scale of 250,000: 1 has been selected as the base map. Using these data for a three-year period (2005-2007), a map of dispersion of accidents in different atmospheric conditions is provided. Based on the results from the maps of accident risk, the highest probability of accident risk during rain falls is in 9, 16, 21, 22 and 25, fog and dust in 10, 29, 35 and 49, the maximum temperature in 20, 25, 35, 43 and 49, wind in 10, 21, 22 and 43, and humidity in 9, 35, 45 and 50 kilometers of the road.
Masoud Mo'ayyeri; Ali Jowzi Khomslouei
Volume 18, Issue 71 , November 2009, , Pages 20-25
Abstract
This paper summarizes the changes in gas reaction and climate tracing in the Holocene period (about 10,000 years ago), with respect to the four glacier periods of the past. The industrial era, which usually begins in the 18th century, is associated with increase in atmospheric greenhouse gases as a result ...
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This paper summarizes the changes in gas reaction and climate tracing in the Holocene period (about 10,000 years ago), with respect to the four glacier periods of the past. The industrial era, which usually begins in the 18th century, is associated with increase in atmospheric greenhouse gases as a result of fossil fuels and land use changes, and these are linked to an increase in the average temperature of the earth's surface during the last decade of the twenty-first century. However, the analyses carried out by Ruddiman, which take the Holocene era and the urban community into consideration, have unprecedentedly compared changes in atmospheric greenhouse gases with that of glacial records of the past four hundred thousand years. During this period, carbon dioxide (CO 2) and methane (CH4) have increased, and this increase is probably due to the beginning of agricultural activities and land clearing in Eurasia. These and other changes in land use resulting from agricultural and rural activities may cause poor climatic change and prevent land’s temperature fall, or maybe due to natural forces. Although the early evidence supports the theory of Ruddiman, forestry and agricultural activities during the period of urban community may have exerted an impact on the climate equal to at least eight thousand years of the past.
Ali Akbar Rasuli; Mas'ud Mina'ii; Mahmud Davoodi
Volume 16, Issue 61 , May 2007, , Pages 43-46
Abstract
The application of remote sensing data is illustrated by the example of the Mount Damavand (5671 m) in the Alborz mountain range in Iran. Several types of satellite data were needed to carry out the complex monographic work on the mountain range: SSEOP images from NASA, Russian KFA-1000 images, CORONA ...
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The application of remote sensing data is illustrated by the example of the Mount Damavand (5671 m) in the Alborz mountain range in Iran. Several types of satellite data were needed to carry out the complex monographic work on the mountain range: SSEOP images from NASA, Russian KFA-1000 images, CORONA panoramic images from NASA and Russian KVR-1000 orthoimages. There are examples of studies of climate, transportation routes, water resources, protected areas, and relics of human land-use that demonstrate the potential of remote sensing data. Correct selection of image data in using remote sensing is a necessity for documenting and monitoring human activities.
Zahra Hejazi Zadeh; Saeed Negahban
Volume 16, Issue 61 , May 2007, , Pages 47-49
Abstract
In this research, we tried to identify the relationship between population areas of Fars province and climatic conditions of different regions of the province. Therefore, at first, different air masses affecting the climate of the province were identified. These masses include the northern, western, ...
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In this research, we tried to identify the relationship between population areas of Fars province and climatic conditions of different regions of the province. Therefore, at first, different air masses affecting the climate of the province were identified. These masses include the northern, western, southern (masses) and local winds. Then, after identifying the type of climate in different regions and analyzing the population dispersion statistics, the relationship between population dispersion and climate conditions was identified. Finally, it was determined that the central regions of Fars province had greater population densities than other areas of the province due to suitable climatic conditions (rainfall, temperature, etc.).
