Gokhan Cuceloglu

• PhD (Environmental Engineering)
• Gebze Technical University

The Dalyan Region that drains into a complex lagoon system is located on the Mediterranean Sea coast of southwest Turkey. There are no large streams in the area, indicating that a considerable amount of freshwater draining into the lagoon is expected to be based on groundwater inflows and that groundwater quality is an important issue for the lagoo...

Uncertainties due to climate change and population growth have created a critical situation for many megacities. Investigating spatio-temporal variability of water resources is, therefore, a critical initial step for water-resource management. This paper is a first study on the evaluation of water-budget components of water resources in Istanbul us...

The use of water resources has increased with rapid population growth, industrial development, and agricultural activities. Besides, the problem might increase with the potential climate change impacts on water quantity. Thus, sustainable use of water resources becomes crucial. Modeling studies provide scientific support to the analysis of water re...

This research aimed to evaluate the impact of land cover/use changes on watershed responses and hydrological processes by applying the Soil and Water Assessment Tool (SWAT) distributed hydrologic model to the Buyukcekmece Water Basin of Istanbul Metropolitan city. SWAT model was run for two different scenarios for the 40-year period between 1973 an...

Land cover is a significant input to hydrological models, and its features may affect model performances. To evaluate its impact on evapotranspiration, surface runoff, and water yield, we tested six open-source LULC data products (GLCC, GLC 2000, GlobCover 2005, GLCNMO V1, CLC 1990, and PELCOM) in the Emet-Orhaneli Basin located in western Anatolia...

"Bilindiği üzere iklim değişikliği temelde sanayi devrimi sonrasındaki endüstrileşme ve buna bağlı olarak karbon kaynaklı enerji kaynaklarının sınırsızca tüketilmesine dayanan ve etkilerini daha çok son yarım yüzyılda atmosferik olaylar ile hissedebildiğimiz bir olgu haline dönüşmüştür. Yağış rejimlerinin değişimi ve sıcaklık artışı sonucunda daha...

This study aims to model hydrological ecosystem services provided by forests and explore how they can be captured in an ecosystem accounting framework. We test a dynamic GIS-based hydrological model to quantify and map key hydrological ecosystem services in the Southern Aegean Region of Turkey and integrate the services into an ecosystem account fo...

This study analyzed the impact of global climate change scenarios on the water resources of Turkiye by means of various climate and hydrological simulations projected for this century. An integrated approach was used by coupling regional climate models and a semi-distributed hydrologic model to assess the climate change impacts. A regional climate...

The OPTAIN project involves both, catchment-, and field-scale modelling of the transport of water and nutrients. The catchment-scale modelling is performed at fourteen case study catchments across Europe using the SWAT+ model. At seven OPTAIN case studies, field-scale modelling is applied using the SWAP model. A Modelling Protocol has been develope...

Severe droughts can result in shortages of water supplies, with widespread social and economic consequences. Here we use a coupled simulation model to assess the reliability of public water supplies in England, in the context of changing scenarios of water demand, water regulation and climate change. The coupled simulation model combines climate si...

USDA (Amerika Birleşik Devletleri Tarım Bakanlığı) tarafından yaklaşık 40 yıldır geliştirilmekte olan SWAT (Soil and Water Assessment Tool) dünyanın farklı bölgelerinde yaygın olarak kullanılan bir havza modelleme aracıdır. SWAT ile ilgili literatürde yer alan makaleler ve uluslararası konferans bildirileri modelin dünya çapında kabul gördüğünü gös...

For the sustainable management of aquatic ecosystems, an integrated approach is required. This is why watershed-based management is becoming an increasingly popular instrument for the improvement of water quality. Water quality models serve as a central part of the watershed management. Predictive water quality models are valuable tools, but they a...

Land use/cover (LULC) dataset can be addressed as one of the significant factors governing watershed hydrology. Thus, there is a necessity for using appropriate LULC data especially while working on the hydrology of sensitive watersheds from which drinking water is provided. The aim of this study is to analyze the effect of using two different LULC...

Precise representation of precipitation input is one of the predominant factors affecting the simulation of hydrological processes in catchments. Choosing the representative climate datasets is crucial to obtain accurate model results, especially in mountainous regions. Hence, this study assesses the suitability of the Climate Forecasting System Re...

The aim of this study is to predict the impact of climate change scenarios on the water resources of the Eastern Mediterranean Watershed of Turkey by means of various simulations conducted for the projection period of 2015-2100. A regional climate model that is the output of 3 global models (HadGEM2-ES, MPI-ESM-MR & CNRM-CM5.1) has been operated wi...

Ekonomik gelişmeler ile birlikte artan nüfus ve bununla birlikte iklim değişikliği tatlı su kaynakları üzerindeki baskıyı ve su kaynaklarına erişimdeki rekabeti her geçen gün artırmakta olup bu durumun gelecekte küresel ölçekte su krizlerine yol açması beklenmektedir. Hükümetlerarası İklim değişikliği Paneli'nin beşinci değerlendirme raporun farklı...

Performance of the watershed modeling studies is closely associated with the model input datasets. Currently, numerous databases are existing and freely available to the modelers in global or regional scale. However, these datasets provide required input data to run models, their resolution and accuracies are needed to be investigated. This study i...

Land use and land cover (LULC) datasets are one of the major key factors effecting the watershed hydrology. Thus, there is a strong requirement for appropriate LULC data especially on the watershed which are used for providing fresh water to the cities. The aim of the study is to analyze hydrological responses to different LULC datasets on hydrolog...

Precipitation is one of the predominant input affecting the hydrological processes, sediment, and nutrient transportation in catchment areas. Choosing representative climate dataset has significant importance to obtain accurate model results especially in a mountainous region where the spatial distribution of the local climate stations shows high s...

Along with population dynamics, industrial and agricultural activities, climate change can be addressed as one of the driving forces affecting the surface water resources of Turkey. As of today, population of Istanbul is approximately 14.5 million and the megacity demands about 3.000.000 m3 daily freshwater out of which 95% is supplied from surface...

Because of their natural dynamics, streams have spatially and temporally variable properties that are changing rapidly. Especially, stream ecosystems in watersheds that are located in the temperate zone have a flow regime having a periodic character at seasonal time scales and a superimposed random character at daily-weakly time scales. The functio...

Istanbul, which is the most crowded city of Turkey, is also among the world's highly populated cities, and its population is increasing day by day so that water resources of this metropolitan are under excessive stress. Today, population of this huge metropolitan is about 13,500,000 and this mega city needs approximately 2,250,000 m(3) water per da...