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Öğe Air Quality Issues and Settlement Suitability Analysis in Igdir Central District(Istanbul Univ, Fac Letters, Dept Geography, 2023) Coskun, Mucahit; Sahiner, Huseyin; Canbulat, Onur; Ozturk, AhmetAir pollution can be a concern during certain seasons, specifically in autumn and winter, in the city center of Igdir owing to the city's geomorphological and climatological features. This study aims to examine the spatial and vertical distribution of air pollution in the atmosphere of the city center of Igdir and identify suitable areas for urban settlement. The results revealed that areas with highest pollution levels were in the city center of Igdir and in the plain area located north of the city. The geographical conditions, specifically in winter, limit convective air movements, cause inversion, and intensify air pollution. Height of the aerosol layer expresses the upper limit that pollutants can reach in the atmosphere. In the city center of Igdir, height of the aerosol layer approximately 1000-1100 m, especially in winter. Furthermore, pollutants are trapped between 850 m, which is the average altitude of the city center of Igdir, and these altitudes causes the pollution to be felt more intensely. A change in the city's settlement plan (horizontally) cannot address this issue in the longterm as the same air pollution problem will occur again. Thus, settlements should be established at least above 1000-1100 meters, which is the upper level of the aerosol layer in winter, to prevent this issue.Öğe Annual Mean Total Precipitation Reconstruction of the Elmacik Mountain and Its Surroundings for 1858-2015 Using Scotch Pine Tree Rings(Istanbul Univ, Fac Letters, Dept Geography, 2023) Irdem, Cemil; Coskun, MucahitThe present study aims to use dendrochronological methods to reconstruct the precipitation history of Elmacik Mountain of Northwest Turkiye and its immediate surroundings. This research is the first dendroclimatological study in Turkiye regarding total annual precipitation reconstruction in the current literature. The study created three Scotch pine (Pinus sylvestris L. ssp. hamata) site chronologies (214-, 233-, and 248-year spans) using samples from Elmacik Mountain before combining the site chronologies into one regional chronology. The study calculated relations between this regional chronology and the total annual precipitation data of the Bolu, Duzce, and Sakarya meteorological stations using Pearson's correlation coefficient. As the results are statistically suitable for reconstructing the total annual precipitation data in Bolu and Duzce, the total rainfall reconstruction of these stations was carried out over a 158 year span from 1858-2015. Low- and high-precipitation years were also revealed for 1858-1950 when the stations were not in operation. Accordingly, the years in which the annual total precipitation was at least one standard deviation unit below the average for both stations were 1860-1861, 1875, 1878, 1887, 1893, 1904-1905, 1907, 1909, 1935, 1942, 1945, and 1949. Meanwhile, 1865, 1873, 1877, 1885, 1910, 1912-1914, 1917, 1919, 1922, 1939-1940 were the years when the total annual rainfall was at least one standard deviation unit above the average. In 1901 and 1936, total annual rainfall was two standard deviations above average.Öğe Fundamental pollutants in the European Union (EU) countries and their effects on Turkey(Elsevier Science Bv, 2011) Coskun, MucahitAtmosphere; is one of the four globes (Atmosphere, hydrosphere, biosphere, lythosphere) and is consisted of several gases. These are permanent and of constant quantity gases (nitrogene 78,9 %, 20,95 oxygen and Nobel gases), permanent and unstable gases (carbon dioxide 0,03%, water vapour % 0,25-% 3) and temporal gases. Those permanent and stable gases are the necessary factors for the balance of continuity of living. Temporal and unstable gases in the atmosphere are mostly influential over climate and aerial events. The place where the pollutants is effective is the 3-4 km part of Troposphere that is among the layers that form atmosphere (tropospher, stratosphere, mesosphere and thermosphere. Pollutants are generally examined in two big groups as 'primary pollutants' that directly penetrate into atmosphere from a particular source in general and 'secondary pollutants' that are formed by several mechanisms. Sulphuredioxide, nitrogeneoxide, corbonmonoxide, hydrocarbons, metals, carbondioxide and particular substances are the examples of primary, cloroflorocarbon and ozone are the examples of secondary pollutants. This classification formed as primary and secondary pollutants are accepted as the fundamental pollutants of atmosphere. In this study, after giving the statistics and maps about the distribution of fundamental pollutants in EU countries primarily, pressure systems in the world and how the pollutants from EU countries reach Turkey and their effects over Turkey were mentioned. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of The 2nd International Geography Symposium-Mediterranean EnvironmentÖğe Geographical information systems (GIS) based forest fire risk analysis: Case of Bartin(Geomatik Journal, 2023) Coskun, Mucahit; Toprak, FerhatAlthough the Black Sea Region is humid, there have been many forest fires recently. The province of Bartin, located in this region, has forests rich in biodiversity. In addition, the province also includes the Western Kure Mountains, an extension of the Kure Mountains National Park, which is one of the 9 hot spots of our country. Considering these conditions, forest areas within the provincial borders of Bartin should be protected against fire risks. In this context, the aim of the study is to determine the forest fire risk in Bartin province. For this purpose, Geographic Information Systems (GIS), which is a useful tool, was used in the study. GIS, an advanced approach to processing and displaying data, stands out by enabling risk analysis. In the research, Grey Relational Analysis (GRA) method was used to determine the fire risk. GRA is an effective formula for assessing the degree of influence of factors. In the calculation, the factors affecting the fire and the emergency response factors were analyzed and mapped separately. Then, these maps were combined to create a fire risk map. According to the result of the fire risk map, 18% of Bartin province is a very high risk area. In these areas, the temperature is high, the altitude is low, and the presence of conifers has been remarkable.Öğe Gifted students' attitudes towards environment: A case study from Turkey(Academic Journals, 2011) Aydin, Fatih; Coskun, Mucahit; Kaya, Huseyin; Erdonmez, IlkerThe purpose of this research is to examine the attitudes of primary students that study at gifted students' school (BiLSEM). A total of 156 primary school students participated in the research in Ankara BiLSEM schools in 2010-2011 academic year. As data gathering tool Environment Attitude Scale developed by Atasoy (2005) was used in the study in the form of survey model. In data analysis phase, frequency, percentage, arithmetic mean, t test and one way variance analysis (ANOVA) were used. According to the results of the study, gifted students have positive attitudes towards environment. Another result indicated that gifted students' attitudes towards environment showed significant differences according to gender and class level variants.Öğe Observation of the students' earthquake perceptions by means of phenomenographic analysis (primary education 7th grade - Turkey)(Academic Journals, 2010) Aydin, Fatih; Coskun, MucahitThe purpose of this research is to define and explain how 7th grade students' in Turkey perceive eawrthquake concept using phenomenographic research methods. The research group of the study is comprised of 553 7th grade students in four cities (Ankara, Adana, Antalya and Karabuk) in Turkey. The data of the research was gathered by students' completing I think earthquake means ..., In my opinion earthquake is ..... statement. After phenomenographic analysis 7 different earthquake definition categorieswere determined. 22.6% of the 7th grade primary school students in Turkey who contributed the research defined the earthquake as destruction of the buildings and death of people, 19.7% shakes related to the movements of the earth crust and fult line, 19.5% natural disaster, 13.8% swinging of the ground, 11.6% a natural disaster whose effects increases as a result of people's unconscious and insensible actsand 10.7% as a disaster whose defects can be reduced by taking the necessary precautions.Öğe Social scientist perception of undergraduate geography students(Elsevier Science Bv, 2014) Demirbas, Cagri Ozturk; Coskun, MucahitThe aim of this study is to reveal social scientist perception of undergraduate geography students. In the research scanning model was used. The study group consisted of 65 students studying geography. Semi-constructed interview form was used as data collection tool. Findings of the study show that geography students mostly have positive perceptions regarding mental social scientist images and perceive a social scientist as physically elegant, long-haired, tall, well-kept, smiling and spectacled. Besides, findings reveal that for geography student sex of the social scientist is not important and that her/his age cannot be said numerically. For them social scientists are immortal. The participants perceive social scientists as a person doing research, joining social solidarity events, scientific meetings in comfortable and neat places where social interaction can occur. Also they perceive a social scientist as a person with library, books, maps, and natural environment objects around. They think the most important social scientists in Turkey are Sirri Erinc and Ziya Gokalp and Plato and Socrates are in the world. If they were social scientists, they would solve social and personal communication problems, environment problems, cultural resolution, domestic violence and children. (C) 2013 The Authors. Published by Elsevier Ltd.
