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    The analysis of high school students' perceptions towards environment concept
    (Academic Journals, 2010) Kaya, Hueseyin; Coskun, Muecahit; Aydin, Fatih
    This research was carried out to put forward high school students' metaphors towards environment concept. The study group of the research consisted of 136 students that attend Prof. Dr. Mumtaz Turhan Social Sciences High School in Istanbul Turkey in the second term of 2009/2010 academic year. The data of the research were gathered by completing Environment is like. because. statement. The analysis and interpretation of the data were done using the phenomenological science design and content analysis technique of qualitative research method. According to the findings of the research, high school students produced 60 valid metaphors towards environment concept. The metaphors mentioned were classified into seven conceptual categories (environment as the expression of pollution, beauty, life, space, importance, reflection and variation) in terms of their common features. The research results indicate that students produced more metaphors that emphasize the importance of environment followed by the metaphors that express reflection, space and beauty. In the suggestions section, it was emphasized that teachers should teach the concepts via metaphors and such applications should be carried out to different student groups, teachers, teacher candidates and parents.
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    Periodic Changes of Temperature Extremes at Some Selected Stations in Turkiye (1970-2018)
    (Istanbul Univ, Fac Letters, Dept Geography, 2022) Aykir, Dilek; Atalay, Ibrahim; Coskun, Muecahit
    Understanding the long-term variations of extreme temperature events is important for detecting and understanding the characteristics of climate change. However, it is not clear to what degree urbanization impacts climate change. In the study, station pairs were created by selecting 42 stations that recorded data between 1970-2018 to reflect the climate characteristics seen in Turkey.The changes of the selected climate indices in these station pairs in the hot (April-September) and cold (October-March) periods were examined by taking into account the observations covering the years 1970-2018. This study utilized the RClimDex program and Mann Kendall trend analysis technique. The RClimDex program was used to generate 27 climate indices. The information derived from the indices not only demonstrates how the mean value changes over time, rather, it; also contains information about how the statistical distribution of the data has changed. In addition, the results provide crucial information about the trends of extremes. In the study, 4 indices related to temperature (Diurnal Temperature Range, Cool Nights, Warm Nights, Minimum of Minimum) were selected and examined. When the changes in the climate indices of the selected stations in the hot and cold periods are examined, it is observed that the change in the hot period is more pronounced than the change in the cold period. According to Mann Kendall trend analysis, most of the trends are statistically significant at the 95% level in all station pairs examined. Results of the trend analysis show that the fastest tendency to increase occur in stations located in the Black Sea, Aegean and Mediterranean coastal zones where the moisture content in the air is higher. This finding points to the positive feedback mechanism created by the increased moisture content in atmosphere through global climate change.
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    Visibility Evaluation and Suitability Analysis of Fire Lookout Towers in Mediterranean Region, Southwest Anatolia/Turkiye
    (Mdpi, 2023) Cosgun, Ufuk; Coskun, Muecahit; Toprak, Ferhat; Yildiz, Damla; Coskun, Sevda; Tasoglu, Enes; Ozturk, Ahmet
    The effectiveness of fire towers in combating forest fires relies on their appropriate observation angles, enabling a swift and efficient response to fire incidents. The purpose of this study is to examine the effectiveness of 49 fire towers located within the Antalya Forestry Regional Directorate, situated in the Mediterranean basin-a region prone to frequent forest fires. The assessment encompasses the visibility of the entire study area, including forested regions, as well as the visibility of 2504 forest fires recorded by the towers between 2008 and 2021. Furthermore, the evaluation considers the objectives based on Forest Management Directorates and conducts a location suitability analysis for the six towers with the lowest visibility.We utilized the Viewshed Tool in the ArcGIS application and employed the Best-Worst approach. Two scenarios were devised, considering smoke height at 0 m or 100 m, to determine the visibility of fire lookout towers. In Scenario I, assuming a smoke height of 100 m, only three towers exhibited visibility above 70%. However, in Scenario II, assuming a smoke height of 0 m, no towers achieved visibility above 70%. Scenario I indicated that only two towers possessed a view of more than 70% of the forested region, while Scenario II suggested that no towers met this criterion. For the visibility of forest fires, Scenario I identified seven towers capable of observing more than 70%, whereas Scenario II indicated that no towers possessed such capability. In the tower suitability analysis, the visibility rates varied from 41.18% to 1016.67%. Based on the evaluation results, the current visibility capacities of the 49 fire towers proved insufficient for effective preventive measures.