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Cercis Ikiel

Sakarya University, Coğrafya (Geography), Faculty Member

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Temirkhan Mukhambetov

Ceylan Yozgatligil

Middle East Technical University

Middle East Technical University

Balikesir University

Gülçin Yılmaz

Anadolu University

University of Hafr Al Batin

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Papers by Cercis Ikiel

1 the Correlation Between Temperature and Pressure Data in Turkey

The distribution of the pressure in the earth surface is not equal in every part of the earth due... more The distribution of the pressure in the earth surface is not equal in every part of the earth due to gravity, height, thermal and dynamic reasons. As well as the effect of the gravity force, in theory, the decrease in sea surface pressure and the amount of decrease in pressure while the height increases should have been the same in everywhere. However the temperature differences and the weather events in the troposphere cause that the weather gets warmer and becomes sparse in some places and gets cooler and becomes dense thus leads to change in pressure depending on the temperature. Based on aforementioned facts, in accordance with the hypothesis that the increase in temperature leads to decrease in pressure and the decrease in temperature leads to increase in pressure, in this study, the relation between the temperature and pressure in the climatic conditions of Turkey are tested by using statistical methods. For that purpose, homogeneity test has been applied to the average temper...

Erosion Susceptibility Analysis of Thrace Peninsula

Bu çalışmanın amacı Trakya Yarımadası’nda erozyon duyarlılık alanlarının belirlenmesi, haritalanm... more Bu çalışmanın amacı Trakya Yarımadası’nda erozyon duyarlılık alanlarının belirlenmesi, haritalanması ve güncel arazi örtüsü ile ilişkisinin değerlendirilmesidir. Çalışma alanı olarak seçilen Trakya Yarımadası, Türkiye’nin ve Marmara Bölgesi’nin kuzeybatısında yer alır. Çalışmada toprak kaybı miktarını belirleyebilmek için Coğrafi Bilgi Sistemlerinde, Yağış Erozif (R), Toprak Erozyon (K), Eğim Uzunluğu ve Eğim Dikliği (LS), Zemin Örtüsü (C) ve Erozyon Kontrol (P) Faktörlerini değerlendiren RUSLE (Düzenlenmiş Evrensel Toprak Kaybı DenklemiRevised Universal Soil Loss Equation) metodu uygulanmıştır. Araştırmada arazi kullanım durumunun tespitinde Temmuz 2018 tarihli 15 m pankromatik, 30 m multispektral mekânsal çözünürlüklü Landsat 8 OLI uydu görüntüsü kullanılmıştır. RUSLE yöntemine göre; Trakya Yarımadası’nın erozyon duyarlılığı haritası elde edilerek, duyarlılık sınıfları belirlenmiştir. Bu duyarlılık sınıfları; çok hafif, hafif, orta, güçlü, şiddetli ve çok şiddetli olmak üzere altı...

Erosion risk analysis in Sapanca Lake Basin

Journal of human sciences, Dec 28, 2022

The aim of this study is to determine the erosion susceptibility areas in the Sapanca Lake Basin.... more The aim of this study is to determine the erosion susceptibility areas in the Sapanca Lake Basin. Sapanca Lake basin is located in the east of the Marmara Region. Due to its natural beauty, transportation opportunities and proximity to metropolitan areas, it is a preferred area for permanent and temporary living. Increasing population and growing settlement areas have created significant changes in the land cover, and depending on this situation, the erosion sensitivity of the research area has increased. In this study, Landsat 8 OLI satellite image dated 24.07.2022 was used to determine the land use status. RUSLE evaluates Precipitation Erosive (R), Soil Erosion Susceptibility (K), Slope Length and Slope Slope (LS), Ground Cover (C) and Erosion Control (P) Factors in Geographic Information Systems to determine the amount of soil loss. The Equation (Revised Universal Soil Loss Equation) method was applied. According to the RUSLE method, erosion susceptibility map of Sapanca Lake Basin was obtained and susceptibility classes were determined. These susceptibility classes are six categories: very light, mild, moderate, strong, severe and very severe. According to the map obtained, very light in 46.3% (13607.8 ha), mild in 7.5% (2211.5 ha), moderate in 15.3% (4493.8 ha), strong in 7.9% (2317.9 ha), Severe erosion susceptibility was detected in 9.8% (2864.1 ha) and very severe erosion sensitivity in 13.2% (3872.4 ha).The average annual soil loss is less

GIS-BASED INTEGRATED ANALYSIS in the YESILIRMAK DELTA COASTLINE CHANGE, TURKEY

In this study, coastline change is investigated using remote sensing and gis-based integrated ana... more In this study, coastline change is investigated using remote sensing and gis-based integrated analysis in the Yesilirmak delta. The study area is located on the north of Turkey. It was formed on the Black Sea coast by the sediments carried by the Yesilirmak river. Coastlines are sensitive to many natural and human factors. In the coastline, significant changes have been seen in recent years because of these factors especially dams on the Yesilirmak and climate change.

Ainfall Forecasting Using Neural Networks in Thrace (Turkey)

Among the climatic elements rainfall data show the most temporal and spatialvariability. Rainfall... more Among the climatic elements rainfall data show the most temporal and spatialvariability. Rainfall prediction is the most intensely studied phenomenon,nevertheless due to its nonlinear nature it yields low predictability ratios. Artificial neural networks are increasing in importance in rainfall forecasting in recent years. In this study rainfall data are analyzed as a time series using artificial neural networks. The data set used in this study is the daily rainfall data of Edirne, Corlu,Tekirdag, Florya (Istanbul) meteorological stations during the period of 1970 -2000. The data is analyzed using an artificial neural network (ANN), trained usingfeed-forward back-propagation (FFBP) technique and the optimum network topology is determined. During the analysis, 4 years of monthly rainfall data areused for training, 4 years for testing and 3 years for running processes. Results ofdaily total values (sum of 10 days) were obtained better rather than the daily value sresults

Trakya Yarimadasi’Nda Erozyon Duyarlilik Anali̇zi̇

Jeomorfolojik Araştırmalar Dergisi (Online), 2020

Climatic Conditions Impact and Importance on Canola (Brasicca napus oleifera sp.) Growing in Turkey

Trakya'nın Erozyon Duyarlılık Analizi

Bu calismanin amaci Trakya’da toprak erozyonu duyarlilik alanlarinin belirlenmesi, haritalanmasi ... more Bu calismanin amaci Trakya’da toprak erozyonu duyarlilik alanlarinin belirlenmesi, haritalanmasi ve guncel arazi ortusu ile iliskisinin degerlendirilmesidir. Calisma alani olan Trakya, Marmara Bolgesi’nin kuzeybatisinda yer alir. Calismada toprak kaybi miktarini belirleyebilmek icin Cografi Bilgi Sistemlerinde, Yagis Erozif (R), Toprak Erozyon (K), Egim Uzunlugu ve Egim Dikligi (LS), Zemin Ortusu (C) ve Erozyon Kontrol (P) Faktorlerini degerlendiren RUSLE (Duzenlenmis Evrensel Toprak Kaybi Denklemi-Revised Universal Soil Loss Equation) metodu uygulanmistir. Arastirmada arazi kullanim durumunun tespitinde Temmuz 2018 tarihli 15 m pankromatik, 30 m multispektral mekânsal cozunurluge sahip Landsat 8 OLI uydu goruntusu kullanilmistir. RUSLE yontemine gore; Trakya’nin toprak erozyonu duyarliligi haritasi elde edilerek, duyarlilik siniflari belirlenmistir. Bu duyarlilik siniflari; cok hafif, hafif, orta, guclu ve siddetli olmak uzere bes sinifa ayrilir. Elde edilen haritaya gore inceleme ...

Erosion Susceptibility Analysis in Datça and Bozburun Peninsulas, Turkey

Iranian Journal of Science and Technology, Transactions A: Science, 2021

The objective of this paper is to determine the erosion susceptibility areas and evaluate their r... more The objective of this paper is to determine the erosion susceptibility areas and evaluate their relationship with land cover in Datca and Bozburun Peninsulas. The research area is located in the southeast of Turkey in the Mediterranean Basin which is one of the 36 biodiversity hotspot areas in the world. RUSLE method was applied to determine amount of soil loss in the study. It was determined that the values obtained from the R, LS, K and C factors were compatible with the erosion susceptibility map. According to the results, erosion susceptibility was determined in the research area of 87.530 ha (65.8%) area as very low, 17.865 ha (13.4%) area as very severe, 11.597 ha (8.7%) area as very low, 7.809 ha (5.9%) area as moderate, 5.689 ha (4.3%) area as severe, 3.049 ha (2.3%) area as high. The spatial distribution of soil erosion susceptibility values in the research area is generally low. The areas with high erosion sensitivity are mountainous and bare areas located in the west and east of the research area. The areas with very low and low erosion susceptibility are agricultural lands and settlements in flat areas. The degradation of the land cover due to factors such as conversion of forest areas into agricultural lands and deforestation due to forest fires increased the risk of erosion. Environmental pressure caused by recreational activities in tourism and unsuitable land use have increased the risk of erosion in recent years. Therefore, protecting natural vegetation and planning sustainable land use are important for climate change and its impacts on research area.

Vegetation periods and changes in the Thrace (1965-2011)<p>Trakya’da vejetasyon süreleri ve değişimleri (1965-2011)

Journal of Human Sciences, 2017

The existence and distribution of plants on the earth with one of the most important elements of ... more The existence and distribution of plants on the earth with one of the most important elements of the natural environment are determined by the abiotic and biotic conditions. Changes that occur in natural conditions and human activities are generally creating a negative effect and many plant species are facing in danger of extinction. One of these conditions, climate is main factor that directly affects the lives of plants and determines the existence and distribution of vegetation as globally, regionally and locally.The greenhouse effect caused by human activities in the last century and the global climate change can have impacts on the existence and spatial changes of plants. In this context, the effects of temperature conditions as the main factor on vegetation are examined according to the certain temperature values and duration. Mean daily temperature values of meteorological stations, which have long term observation record, in the study area, were analyzed statistically. As a ...

Analyzing land cover change using remote sensing and gis methods in the Carsamba Plain and its surroundings (1985-2013)Çarşamba Ovası ve yakın çevresinde arazi örtüsü değişiminin uzaktan algılama ve coğrafi bilgi sistemleriyle analizi (1985-2013)

Journal of Human Sciences, 2016

The aim of this study is to analyze the change of land cover of Çarşamba Plain and its surroundin... more The aim of this study is to analyze the change of land cover of Çarşamba Plain and its surroundings by remote sensing and geographic information systems. For this purpose, Landsat 5 TM image at a resolution of 30 km for the year 1985, and the RapidEye satellite image at 6.5 m. resolution,for the year 2013 is used. These images were analyzed by geographic information systems via on-screen digitization method. According to the results obtained, significant changes in the land cover of the survey area between 1985-2013 have been determined. These findings were compared with the Land Surveillance System, the National Land Cover Database, which was created by the T.C Forest and Water Affairs Ministry and similar results were obtained. It has ben determined that there ise a change in decreasing direction in the forest and pasture areas in the examined period. Also beach areas is getting smaller because of coastal eroision. However, settlement areas expanded due to population increase in t...

Sapanca - Kırkpınar'da Yerleşmenin Evrimi

Inceleme alanimizi olusturan Kirkpinar Beldesi; Marmara Bolgesi’nin Catalca-Kocaeli Bolumunde, Sa... more Inceleme alanimizi olusturan Kirkpinar Beldesi; Marmara Bolgesi’nin Catalca-Kocaeli Bolumunde, Sapanca Golu’nun guney kiyisinda yer almaktadir. Belde kuzeyden Sapanca Golu, guneyden Samanli Daglari ve batidan Kurtkoy deresi ile sinirlanmistir. (Şekil 1)Bu calismada Kirkpinar’da yerlesmenin evrimi, bu evrim sonucundan beldenin degisen mekânsal ve fonksiyonel kullanimi ile belde de degisimin gerceklesmesinde etkili olan sayfiyeciligin nitelikleri incelenmistir.Idari olarak Sapanca ilcesine bagli bir belde olan Kirkpinar’in yuzolcumu 80 km² olup, ilce merkezine 5 km, il merkezine ise 24 km uzakliktadir. 19. Yuzyilin sonlarinda Kafkasya ve Balkanlardan gelen gocmenler tarafindan kurulmus bir kir yerlesmesi olan Kirkpinar dogal guzellikleri ve buyuk merkezlere olan ulasim kolayligi nedeniyle gunumuzde bir sayfiye yerlesmesi haline donusmustur. Ayrica beldenin fonksiyonlari ve farkli arazi kullanislari incelendiginde kirsal bir yerlesmede olmayan sehirsel fonksiyonlarin gelistigi gorulmek...

Fluvial response to rising levels of the Black Sea and to climate changes during the Holocene: Luminescence geochronology of the Sakarya terraces

The Holocene, 2019

The Sakarya River is among the largest fluvial systems of the southern Black Sea basin, draining ... more The Sakarya River is among the largest fluvial systems of the southern Black Sea basin, draining most of NW Anatolia. The river crosses the high relief of the Pontide mountain range through successive narrow gorges and strike-slip basins formed by the North Anatolian Fault (NAF) System. We have investigated this fluvial record along the course of the main river channel at its lower reaches. The study site is located south of the Adapazarı Basin, ~50 km inland from the Black Sea, where remnant floodplains are preserved as a three-step terrace staircase resulting from continuous uplift to the south of the NAF. The combination of high resolution mapping with a detailed luminescence (OSL and p-IR-IRSL) and radiocarbon geochronology has shed light on changes in the level of the Black Sea and in the hydrological system during the late Pleistocene to recent. The last glacial period is represented by the highest terrace (T3) indicating deposition during marine isotope stage (MIS) 3 in betwe...

Chaos in Time Series of Sakarya River Daily Flow Rate

Journal of Applied Mathematics and Physics, 2016

In this study, possible low dimensional chaotic behavior of Sakarya river flow rates is investiga... more In this study, possible low dimensional chaotic behavior of Sakarya river flow rates is investigated via nonlinear time series techniques. To reveal the chaotic dynamics, the maximal positive Lyapunov exponent is calculated from the reconstructed phase space, which is obtained using the phase space reconstruction method. The method reconstructs a phase space from the scalar time series, which depicts the real system's invariants Positive values, because the Lyapunov exponent values calculated using the appropriate software program indicate possibility of chaotic behavior. Analyzed data involve the monthly average flow rates of eleven main branches of Sakarya River through the years 1960-2000.

Mugla Tourism Information System

This paper defines the software and the network architecture of a system that will be the basis f... more

Land Use And Land Cover ( Lulc ) Classification Using Spot-5 Image In The Adapazari Plain And Its Surroundings , Turkey Conference

The objective of the study is determination of land use and land cover patterns of Adapazari plai... more The objective of the study is determination of land use and land cover patterns of Adapazari plain and its surroundings by image classification. The study area is located in northwest of Turkey between coordinates of 40°3740°57 N and 30°1230°46 E and approximately 140 km east of Istanbul. Plain has become by the accumulation of sediments carried by Sakarya River and its tributaries. Adapazari Plain is a fertile agricultural area because of its favourable natural conditions. However, because of its closeness to Istanbul, population stress has gradually increased, so industrialization and urbanization has been accelerated in the plain. In this study, SPOT-5 satellite image is used to determination of land use and land cover characteristics of research area. The image is analyzed by using data images processing techniques in ERDAS Imagine© 10.0 and ArcGIS© 10.0 software. Land cover nomenclature is classified according to the CORINE (Coordination of Information on the Environment) L...

Vegetation geography of western part of Elmacik mountain, Turkey

The study examines the western part of Elmacik mountain from the perspective of vegetation geogra... more The study examines the western part of Elmacik mountain from the perspective of vegetation geography. Research area is within the phytogeographical region of Euro-Siberian that is among the flora and phytogeographical region of Turkey. According to Turkey's grid square system, the research area is located in the A3 square. The main elements of forest formation consist of Fagus orientalis, Abies nordmanniana subspp. bommuelleriana, Pinus nigra subsp. pallasiana, Pinus sylvestris, Quercus spp., Platanus orientalis and Tilia argentea. Humid forests are dominant and the main elements of shrub formation consist of Buxus sempervirens, Rubus sanctus and especially Rhododendron ponticum subsp. ponticum. The main herbaceous formation area consists of Digitalis ferruginea subsp. ferruginea, Fragaria vesca, Euphorbia falcata, Crocus colchicum kotschyi and Verbascum sp. Distribution of natural vegetation varies due to climate, soils and morphologic character and of the research area. This s...

Muğla ve çevresinin iklimi / The Climate of Muğla and it`s surroundings

Determination of Land Cover Change in Datça and Bozburun Peninsula in Turkey (1997-2018)

2019 8th International Conference on Agro-Geoinformatics (Agro-Geoinformatics), 2019

In this study, land cover in Datça - Bozburun Special Environmental Protection Area was determine... more In this study, land cover in Datça - Bozburun Special Environmental Protection Area was determined and limited changes were analyzed with satellite images and field research. The study area is the two peninsulas at the south west of Turkey surrounded by the Aegean Sea and Mediterranean Sea. The land is generally composed of mountainous and hilly terrains where mesozoic limestones are common. There are many gulfs and bays on the shores of both peninsulas. Mediterranean climate and vegetation are observed in the study area. Although there have been human settlements since ancient times, the land structure and limited agricultural areas prevented the presence of excess population. The port of Knidos on the western end of the Datça Peninsula was an important settlement developed in the past by maritime exportation, especially with the export of wine. Today, it attracts attention with its coastal tourism and some agricultural products (Olive, Almond, Carob etc.). The fact that the resear...

Chaotic Behaviour of Daily Rainfall Data in Thrace (Turkey)

1 the Correlation Between Temperature and Pressure Data in Turkey

The distribution of the pressure in the earth surface is not equal in every part of the earth due... more The distribution of the pressure in the earth surface is not equal in every part of the earth due to gravity, height, thermal and dynamic reasons. As well as the effect of the gravity force, in theory, the decrease in sea surface pressure and the amount of decrease in pressure while the height increases should have been the same in everywhere. However the temperature differences and the weather events in the troposphere cause that the weather gets warmer and becomes sparse in some places and gets cooler and becomes dense thus leads to change in pressure depending on the temperature. Based on aforementioned facts, in accordance with the hypothesis that the increase in temperature leads to decrease in pressure and the decrease in temperature leads to increase in pressure, in this study, the relation between the temperature and pressure in the climatic conditions of Turkey are tested by using statistical methods. For that purpose, homogeneity test has been applied to the average temper...

Erosion Susceptibility Analysis of Thrace Peninsula

Bu çalışmanın amacı Trakya Yarımadası’nda erozyon duyarlılık alanlarının belirlenmesi, haritalanm... more Bu çalışmanın amacı Trakya Yarımadası’nda erozyon duyarlılık alanlarının belirlenmesi, haritalanması ve güncel arazi örtüsü ile ilişkisinin değerlendirilmesidir. Çalışma alanı olarak seçilen Trakya Yarımadası, Türkiye’nin ve Marmara Bölgesi’nin kuzeybatısında yer alır. Çalışmada toprak kaybı miktarını belirleyebilmek için Coğrafi Bilgi Sistemlerinde, Yağış Erozif (R), Toprak Erozyon (K), Eğim Uzunluğu ve Eğim Dikliği (LS), Zemin Örtüsü (C) ve Erozyon Kontrol (P) Faktörlerini değerlendiren RUSLE (Düzenlenmiş Evrensel Toprak Kaybı DenklemiRevised Universal Soil Loss Equation) metodu uygulanmıştır. Araştırmada arazi kullanım durumunun tespitinde Temmuz 2018 tarihli 15 m pankromatik, 30 m multispektral mekânsal çözünürlüklü Landsat 8 OLI uydu görüntüsü kullanılmıştır. RUSLE yöntemine göre; Trakya Yarımadası’nın erozyon duyarlılığı haritası elde edilerek, duyarlılık sınıfları belirlenmiştir. Bu duyarlılık sınıfları; çok hafif, hafif, orta, güçlü, şiddetli ve çok şiddetli olmak üzere altı...

Erosion risk analysis in Sapanca Lake Basin

Journal of human sciences, Dec 28, 2022

The aim of this study is to determine the erosion susceptibility areas in the Sapanca Lake Basin.... more The aim of this study is to determine the erosion susceptibility areas in the Sapanca Lake Basin. Sapanca Lake basin is located in the east of the Marmara Region. Due to its natural beauty, transportation opportunities and proximity to metropolitan areas, it is a preferred area for permanent and temporary living. Increasing population and growing settlement areas have created significant changes in the land cover, and depending on this situation, the erosion sensitivity of the research area has increased. In this study, Landsat 8 OLI satellite image dated 24.07.2022 was used to determine the land use status. RUSLE evaluates Precipitation Erosive (R), Soil Erosion Susceptibility (K), Slope Length and Slope Slope (LS), Ground Cover (C) and Erosion Control (P) Factors in Geographic Information Systems to determine the amount of soil loss. The Equation (Revised Universal Soil Loss Equation) method was applied. According to the RUSLE method, erosion susceptibility map of Sapanca Lake Basin was obtained and susceptibility classes were determined. These susceptibility classes are six categories: very light, mild, moderate, strong, severe and very severe. According to the map obtained, very light in 46.3% (13607.8 ha), mild in 7.5% (2211.5 ha), moderate in 15.3% (4493.8 ha), strong in 7.9% (2317.9 ha), Severe erosion susceptibility was detected in 9.8% (2864.1 ha) and very severe erosion sensitivity in 13.2% (3872.4 ha).The average annual soil loss is less

GIS-BASED INTEGRATED ANALYSIS in the YESILIRMAK DELTA COASTLINE CHANGE, TURKEY

In this study, coastline change is investigated using remote sensing and gis-based integrated ana... more In this study, coastline change is investigated using remote sensing and gis-based integrated analysis in the Yesilirmak delta. The study area is located on the north of Turkey. It was formed on the Black Sea coast by the sediments carried by the Yesilirmak river. Coastlines are sensitive to many natural and human factors. In the coastline, significant changes have been seen in recent years because of these factors especially dams on the Yesilirmak and climate change.

Ainfall Forecasting Using Neural Networks in Thrace (Turkey)

Among the climatic elements rainfall data show the most temporal and spatialvariability. Rainfall... more Among the climatic elements rainfall data show the most temporal and spatialvariability. Rainfall prediction is the most intensely studied phenomenon,nevertheless due to its nonlinear nature it yields low predictability ratios. Artificial neural networks are increasing in importance in rainfall forecasting in recent years. In this study rainfall data are analyzed as a time series using artificial neural networks. The data set used in this study is the daily rainfall data of Edirne, Corlu,Tekirdag, Florya (Istanbul) meteorological stations during the period of 1970 -2000. The data is analyzed using an artificial neural network (ANN), trained usingfeed-forward back-propagation (FFBP) technique and the optimum network topology is determined. During the analysis, 4 years of monthly rainfall data areused for training, 4 years for testing and 3 years for running processes. Results ofdaily total values (sum of 10 days) were obtained better rather than the daily value sresults

Trakya Yarimadasi’Nda Erozyon Duyarlilik Anali̇zi̇

Jeomorfolojik Araştırmalar Dergisi (Online), 2020

Climatic Conditions Impact and Importance on Canola (Brasicca napus oleifera sp.) Growing in Turkey

Trakya'nın Erozyon Duyarlılık Analizi

Bu calismanin amaci Trakya’da toprak erozyonu duyarlilik alanlarinin belirlenmesi, haritalanmasi ... more Bu calismanin amaci Trakya’da toprak erozyonu duyarlilik alanlarinin belirlenmesi, haritalanmasi ve guncel arazi ortusu ile iliskisinin degerlendirilmesidir. Calisma alani olan Trakya, Marmara Bolgesi’nin kuzeybatisinda yer alir. Calismada toprak kaybi miktarini belirleyebilmek icin Cografi Bilgi Sistemlerinde, Yagis Erozif (R), Toprak Erozyon (K), Egim Uzunlugu ve Egim Dikligi (LS), Zemin Ortusu (C) ve Erozyon Kontrol (P) Faktorlerini degerlendiren RUSLE (Duzenlenmis Evrensel Toprak Kaybi Denklemi-Revised Universal Soil Loss Equation) metodu uygulanmistir. Arastirmada arazi kullanim durumunun tespitinde Temmuz 2018 tarihli 15 m pankromatik, 30 m multispektral mekânsal cozunurluge sahip Landsat 8 OLI uydu goruntusu kullanilmistir. RUSLE yontemine gore; Trakya’nin toprak erozyonu duyarliligi haritasi elde edilerek, duyarlilik siniflari belirlenmistir. Bu duyarlilik siniflari; cok hafif, hafif, orta, guclu ve siddetli olmak uzere bes sinifa ayrilir. Elde edilen haritaya gore inceleme ...

Erosion Susceptibility Analysis in Datça and Bozburun Peninsulas, Turkey

Iranian Journal of Science and Technology, Transactions A: Science, 2021

The objective of this paper is to determine the erosion susceptibility areas and evaluate their r... more The objective of this paper is to determine the erosion susceptibility areas and evaluate their relationship with land cover in Datca and Bozburun Peninsulas. The research area is located in the southeast of Turkey in the Mediterranean Basin which is one of the 36 biodiversity hotspot areas in the world. RUSLE method was applied to determine amount of soil loss in the study. It was determined that the values obtained from the R, LS, K and C factors were compatible with the erosion susceptibility map. According to the results, erosion susceptibility was determined in the research area of 87.530 ha (65.8%) area as very low, 17.865 ha (13.4%) area as very severe, 11.597 ha (8.7%) area as very low, 7.809 ha (5.9%) area as moderate, 5.689 ha (4.3%) area as severe, 3.049 ha (2.3%) area as high. The spatial distribution of soil erosion susceptibility values in the research area is generally low. The areas with high erosion sensitivity are mountainous and bare areas located in the west and east of the research area. The areas with very low and low erosion susceptibility are agricultural lands and settlements in flat areas. The degradation of the land cover due to factors such as conversion of forest areas into agricultural lands and deforestation due to forest fires increased the risk of erosion. Environmental pressure caused by recreational activities in tourism and unsuitable land use have increased the risk of erosion in recent years. Therefore, protecting natural vegetation and planning sustainable land use are important for climate change and its impacts on research area.

Vegetation periods and changes in the Thrace (1965-2011)<p>Trakya’da vejetasyon süreleri ve değişimleri (1965-2011)

Journal of Human Sciences, 2017

The existence and distribution of plants on the earth with one of the most important elements of ... more The existence and distribution of plants on the earth with one of the most important elements of the natural environment are determined by the abiotic and biotic conditions. Changes that occur in natural conditions and human activities are generally creating a negative effect and many plant species are facing in danger of extinction. One of these conditions, climate is main factor that directly affects the lives of plants and determines the existence and distribution of vegetation as globally, regionally and locally.The greenhouse effect caused by human activities in the last century and the global climate change can have impacts on the existence and spatial changes of plants. In this context, the effects of temperature conditions as the main factor on vegetation are examined according to the certain temperature values and duration. Mean daily temperature values of meteorological stations, which have long term observation record, in the study area, were analyzed statistically. As a ...

Analyzing land cover change using remote sensing and gis methods in the Carsamba Plain and its surroundings (1985-2013)Çarşamba Ovası ve yakın çevresinde arazi örtüsü değişiminin uzaktan algılama ve coğrafi bilgi sistemleriyle analizi (1985-2013)

Journal of Human Sciences, 2016

The aim of this study is to analyze the change of land cover of Çarşamba Plain and its surroundin... more The aim of this study is to analyze the change of land cover of Çarşamba Plain and its surroundings by remote sensing and geographic information systems. For this purpose, Landsat 5 TM image at a resolution of 30 km for the year 1985, and the RapidEye satellite image at 6.5 m. resolution,for the year 2013 is used. These images were analyzed by geographic information systems via on-screen digitization method. According to the results obtained, significant changes in the land cover of the survey area between 1985-2013 have been determined. These findings were compared with the Land Surveillance System, the National Land Cover Database, which was created by the T.C Forest and Water Affairs Ministry and similar results were obtained. It has ben determined that there ise a change in decreasing direction in the forest and pasture areas in the examined period. Also beach areas is getting smaller because of coastal eroision. However, settlement areas expanded due to population increase in t...

Sapanca - Kırkpınar'da Yerleşmenin Evrimi

Inceleme alanimizi olusturan Kirkpinar Beldesi; Marmara Bolgesi’nin Catalca-Kocaeli Bolumunde, Sa... more Inceleme alanimizi olusturan Kirkpinar Beldesi; Marmara Bolgesi’nin Catalca-Kocaeli Bolumunde, Sapanca Golu’nun guney kiyisinda yer almaktadir. Belde kuzeyden Sapanca Golu, guneyden Samanli Daglari ve batidan Kurtkoy deresi ile sinirlanmistir. (Şekil 1)Bu calismada Kirkpinar’da yerlesmenin evrimi, bu evrim sonucundan beldenin degisen mekânsal ve fonksiyonel kullanimi ile belde de degisimin gerceklesmesinde etkili olan sayfiyeciligin nitelikleri incelenmistir.Idari olarak Sapanca ilcesine bagli bir belde olan Kirkpinar’in yuzolcumu 80 km² olup, ilce merkezine 5 km, il merkezine ise 24 km uzakliktadir. 19. Yuzyilin sonlarinda Kafkasya ve Balkanlardan gelen gocmenler tarafindan kurulmus bir kir yerlesmesi olan Kirkpinar dogal guzellikleri ve buyuk merkezlere olan ulasim kolayligi nedeniyle gunumuzde bir sayfiye yerlesmesi haline donusmustur. Ayrica beldenin fonksiyonlari ve farkli arazi kullanislari incelendiginde kirsal bir yerlesmede olmayan sehirsel fonksiyonlarin gelistigi gorulmek...

Fluvial response to rising levels of the Black Sea and to climate changes during the Holocene: Luminescence geochronology of the Sakarya terraces

The Holocene, 2019

The Sakarya River is among the largest fluvial systems of the southern Black Sea basin, draining ... more The Sakarya River is among the largest fluvial systems of the southern Black Sea basin, draining most of NW Anatolia. The river crosses the high relief of the Pontide mountain range through successive narrow gorges and strike-slip basins formed by the North Anatolian Fault (NAF) System. We have investigated this fluvial record along the course of the main river channel at its lower reaches. The study site is located south of the Adapazarı Basin, ~50 km inland from the Black Sea, where remnant floodplains are preserved as a three-step terrace staircase resulting from continuous uplift to the south of the NAF. The combination of high resolution mapping with a detailed luminescence (OSL and p-IR-IRSL) and radiocarbon geochronology has shed light on changes in the level of the Black Sea and in the hydrological system during the late Pleistocene to recent. The last glacial period is represented by the highest terrace (T3) indicating deposition during marine isotope stage (MIS) 3 in betwe...

Chaos in Time Series of Sakarya River Daily Flow Rate

Journal of Applied Mathematics and Physics, 2016

In this study, possible low dimensional chaotic behavior of Sakarya river flow rates is investiga... more In this study, possible low dimensional chaotic behavior of Sakarya river flow rates is investigated via nonlinear time series techniques. To reveal the chaotic dynamics, the maximal positive Lyapunov exponent is calculated from the reconstructed phase space, which is obtained using the phase space reconstruction method. The method reconstructs a phase space from the scalar time series, which depicts the real system's invariants Positive values, because the Lyapunov exponent values calculated using the appropriate software program indicate possibility of chaotic behavior. Analyzed data involve the monthly average flow rates of eleven main branches of Sakarya River through the years 1960-2000.

Mugla Tourism Information System

This paper defines the software and the network architecture of a system that will be the basis f... more

Land Use And Land Cover ( Lulc ) Classification Using Spot-5 Image In The Adapazari Plain And Its Surroundings , Turkey Conference

The objective of the study is determination of land use and land cover patterns of Adapazari plai... more The objective of the study is determination of land use and land cover patterns of Adapazari plain and its surroundings by image classification. The study area is located in northwest of Turkey between coordinates of 40°3740°57 N and 30°1230°46 E and approximately 140 km east of Istanbul. Plain has become by the accumulation of sediments carried by Sakarya River and its tributaries. Adapazari Plain is a fertile agricultural area because of its favourable natural conditions. However, because of its closeness to Istanbul, population stress has gradually increased, so industrialization and urbanization has been accelerated in the plain. In this study, SPOT-5 satellite image is used to determination of land use and land cover characteristics of research area. The image is analyzed by using data images processing techniques in ERDAS Imagine© 10.0 and ArcGIS© 10.0 software. Land cover nomenclature is classified according to the CORINE (Coordination of Information on the Environment) L...

Vegetation geography of western part of Elmacik mountain, Turkey

The study examines the western part of Elmacik mountain from the perspective of vegetation geogra... more The study examines the western part of Elmacik mountain from the perspective of vegetation geography. Research area is within the phytogeographical region of Euro-Siberian that is among the flora and phytogeographical region of Turkey. According to Turkey's grid square system, the research area is located in the A3 square. The main elements of forest formation consist of Fagus orientalis, Abies nordmanniana subspp. bommuelleriana, Pinus nigra subsp. pallasiana, Pinus sylvestris, Quercus spp., Platanus orientalis and Tilia argentea. Humid forests are dominant and the main elements of shrub formation consist of Buxus sempervirens, Rubus sanctus and especially Rhododendron ponticum subsp. ponticum. The main herbaceous formation area consists of Digitalis ferruginea subsp. ferruginea, Fragaria vesca, Euphorbia falcata, Crocus colchicum kotschyi and Verbascum sp. Distribution of natural vegetation varies due to climate, soils and morphologic character and of the research area. This s...

Muğla ve çevresinin iklimi / The Climate of Muğla and it`s surroundings

Determination of Land Cover Change in Datça and Bozburun Peninsula in Turkey (1997-2018)

2019 8th International Conference on Agro-Geoinformatics (Agro-Geoinformatics), 2019

In this study, land cover in Datça - Bozburun Special Environmental Protection Area was determine... more In this study, land cover in Datça - Bozburun Special Environmental Protection Area was determined and limited changes were analyzed with satellite images and field research. The study area is the two peninsulas at the south west of Turkey surrounded by the Aegean Sea and Mediterranean Sea. The land is generally composed of mountainous and hilly terrains where mesozoic limestones are common. There are many gulfs and bays on the shores of both peninsulas. Mediterranean climate and vegetation are observed in the study area. Although there have been human settlements since ancient times, the land structure and limited agricultural areas prevented the presence of excess population. The port of Knidos on the western end of the Datça Peninsula was an important settlement developed in the past by maritime exportation, especially with the export of wine. Today, it attracts attention with its coastal tourism and some agricultural products (Olive, Almond, Carob etc.). The fact that the resear...

Chaotic Behaviour of Daily Rainfall Data in Thrace (Turkey)