71.Türkiye Jeoloji Kurultayı, 23-27 Nisan 2018, AnkaraSon yıllarda iklim değişikliğine bağlı su k... more 71.Türkiye Jeoloji Kurultayı, 23-27 Nisan 2018, AnkaraSon yıllarda iklim değişikliğine bağlı su kullanımının artması ve buna ek olarak aşırı nüfus artışı, yeraltısuyu kullanımını arttırmakta ve su kaynaklarını tehdit etmektedir. Su kaynaklarının sürdürülebilirliğinin sağlanması için barajlar ve yapay göller inşa edilmekte, ancak bu yapıların geniş yüzey alanlarında çok fazla buharlaşma görülmektedir. Dolayısı ile yeraltı suyunun, buharlaşma kayıplarının yaşanmadığı direkt yağış ile beslenen yapay beslenmesi önem kazanmaktadır. Yapay beslenme, havzalardaki suyu fazla buharlaşmadan korur ve su kaynaklarının potansiyelini artırıp, sürdürülebilirliğini sağlar. Bu çalışma kapsamında nümerik metotlar kullanılarak, Alaşehir (Manisa) havzasında alüvyon akiferin beslenmesinin belirlenmesi amaçlanmıştır. Türkiye’nin batısında yer alan ve ülkenin %2’sini oluşturan Gediz Havzası, önemli bir yeraltı suyu potansiyelinin olduğu ve kullanıldığı alan konumundadır.TUBITAK project number of 115Y06
The issue of groundwater recharge has gained importance in countries where there is not enough wa... more The issue of groundwater recharge has gained importance in countries where there is not enough water supply to the aquifer. However, groundwater recharge is a difficult parameter to determine. This difficulty stems from factors such as the location of the area to be studied, time, cost, and hydrological data. Numerical, isotope, and chemical approaches are used in groundwater recharge investigations. Numerical and chemical approaches are more costly and time-consuming than chemical approaches. This study aims to ascertain alluvial aquifer recharge in Alaşehir (Manisa) sub-basin using chemical approaches (Chloride Mass Balance Method) and its applicability. For this purpose, research wells were drilled at 25 different points in the alluvial aquifer, water sampling was done in wet and dry periods, and rainwater water samples were collected. Groundwater recharge was calculated by using chemical approaches from the chloride concentrations of the water samples collected. An annual average of 74.84 mm of recharge was found in the Alaşehir sub-basin. This value corresponds to 16.38% of annual rainfall. At the same time, it was examined the groundwater and geothermal mixing mechanism to demonstrate the applicability of the Chloride Mass Balance Method. It was concluded that geothermal fluid in Alaşehir sub-basin mixed with groundwater at a rate of 17%.
Many scientists have recently alarmed natural hazards due to global climate change. Such natural ... more Many scientists have recently alarmed natural hazards due to global climate change. Such natural disasters are coastal inundation in response to sea-level rise, and/or river flooding caused by heavy rain falls, additionally earthquakes and, etc. In terms of natural hazards, one of the most sensitive and culturally significant areas in Turkey is the Hatay province in the east Mediterranean region. The Hatay province is located on such a region which is not only vulnerable to coastal inundation and river flooding, but also is a tectonically and seismically sensitive area. In this study, for taking conservation measures against the natural hazards beforehand and decision-making on any future land-planning; a digital terrain model and a 3D fly-through model of the Hatay province were generated; then quantitatively and/or qualitatively interpreted by employing the Shuttle Radar Topographic Mission digital elevation model. Besides, stream drainage patterns, lineaments and structural–geolo...
... Terrain Analysis: Principles and Applications , New York: John Wiley and Sons. View all refer... more ... Terrain Analysis: Principles and Applications , New York: John Wiley and Sons. View all references, El Sheimy et al. 20058. El Sheimy, N., Valeo, C. and Habib, A. 2005. Digital Terrain Modeling: Acquisition, Manipulation and Applications , Boston, MA: Artech House. ...
The vulnerability of low-lying coastal areas in Turkey to inundation was quantified based on the ... more The vulnerability of low-lying coastal areas in Turkey to inundation was quantified based on the sea-level rise scenarios of 1, 2, and 3 m by 2205. Through digital elevation model (DEM) acquired by the shuttle radar topography mission (SRTM), the extent and ...
The study presents a new methodology to quantify spatiotemporal dynamics of climate change vulner... more The study presents a new methodology to quantify spatiotemporal dynamics of climate change vulnerability at a regional scale adopting a new conceptual model of vulnerability as a function of climate change impacts, ecological stability, and socioeconomic stability. Spatiotemporal trends of equally weighted proxy variables for the three vulnerability components were generated to develop a composite climate change vulnerability index (CCVI) for a Mediterranean region of Turkey combining Landsat time series data, digital elevation model (DEM)-derived data, ordinary kriging, and geographical information system. Climate change impact was based on spatiotemporal trends of August land surface temperature (LST) between 1987 and 2016. Ecological stability was based on DEM, slope, aspect, and spatiotemporal trends of normalized difference vegetation index (NDVI), while socioeconomic stability was quantified as a function of spatiotemporal trends of land cover, population density, per capita gross domestic product, and illiteracy. The zones ranked on the five classes of no-to-extreme vulnerability were identified where highly and moderately vulnerable lands covered 0.02% (12 km(2)) and 11.8% (6374 km(2)) of the study region, respectively, mostly occurring in the interior central part. The adoption of this composite CCVI approach is expected to lead to spatiotemporally dynamic policy recommendations towards sustainability and tailor preventive and mitigative measures to locally specific characteristics of coupled ecological-socioeconomic systems.
... 2.2 Stream drainage patterns Geomorphologists dealing with remote sensing applications have s... more ... 2.2 Stream drainage patterns Geomorphologists dealing with remote sensing applications have studied stream drainage patterns and their relationships to terrain conditions. ... Because of erosion and deformation, older volcanic terrains lack these distinctive features. ...
Recently, due to the excessive raining, some land and houses have been seen under water and faced... more Recently, due to the excessive raining, some land and houses have been seen under water and faced with flood disaster. In order to prevent this catastrophe, taking measures beforehand is so important. For this reason, in order to help with planning while land arrangements in urban and ru- ral areas are done, hydrologically analyzing the DEMs produced from the satellite images belong- ing to that region, locations of flooded areas are de- termined when excessive raining occurs. Therefore, in this study, DEM analysis is involved, as well. As software, RiverTools, a Geographic Information System, which analyzes digital elevation models (DEMs) was used. With RiverTools, all images be- longing to DEMs can be processed and its hydro- logic surface can be analyzed. In other words, all satellite images related to DEMs can be processed. As data, the DEM belonging to Cumberland basin in Kentucky State, USA was experimentally used and analyzed. Flooded areas were determined when water level re...
71.Türkiye Jeoloji Kurultayı, 23-27 Nisan 2018, AnkaraSon yıllarda iklim değişikliğine bağlı su k... more 71.Türkiye Jeoloji Kurultayı, 23-27 Nisan 2018, AnkaraSon yıllarda iklim değişikliğine bağlı su kullanımının artması ve buna ek olarak aşırı nüfus artışı, yeraltısuyu kullanımını arttırmakta ve su kaynaklarını tehdit etmektedir. Su kaynaklarının sürdürülebilirliğinin sağlanması için barajlar ve yapay göller inşa edilmekte, ancak bu yapıların geniş yüzey alanlarında çok fazla buharlaşma görülmektedir. Dolayısı ile yeraltı suyunun, buharlaşma kayıplarının yaşanmadığı direkt yağış ile beslenen yapay beslenmesi önem kazanmaktadır. Yapay beslenme, havzalardaki suyu fazla buharlaşmadan korur ve su kaynaklarının potansiyelini artırıp, sürdürülebilirliğini sağlar. Bu çalışma kapsamında nümerik metotlar kullanılarak, Alaşehir (Manisa) havzasında alüvyon akiferin beslenmesinin belirlenmesi amaçlanmıştır. Türkiye’nin batısında yer alan ve ülkenin %2’sini oluşturan Gediz Havzası, önemli bir yeraltı suyu potansiyelinin olduğu ve kullanıldığı alan konumundadır.TUBITAK project number of 115Y06
The issue of groundwater recharge has gained importance in countries where there is not enough wa... more The issue of groundwater recharge has gained importance in countries where there is not enough water supply to the aquifer. However, groundwater recharge is a difficult parameter to determine. This difficulty stems from factors such as the location of the area to be studied, time, cost, and hydrological data. Numerical, isotope, and chemical approaches are used in groundwater recharge investigations. Numerical and chemical approaches are more costly and time-consuming than chemical approaches. This study aims to ascertain alluvial aquifer recharge in Alaşehir (Manisa) sub-basin using chemical approaches (Chloride Mass Balance Method) and its applicability. For this purpose, research wells were drilled at 25 different points in the alluvial aquifer, water sampling was done in wet and dry periods, and rainwater water samples were collected. Groundwater recharge was calculated by using chemical approaches from the chloride concentrations of the water samples collected. An annual average of 74.84 mm of recharge was found in the Alaşehir sub-basin. This value corresponds to 16.38% of annual rainfall. At the same time, it was examined the groundwater and geothermal mixing mechanism to demonstrate the applicability of the Chloride Mass Balance Method. It was concluded that geothermal fluid in Alaşehir sub-basin mixed with groundwater at a rate of 17%.
Many scientists have recently alarmed natural hazards due to global climate change. Such natural ... more Many scientists have recently alarmed natural hazards due to global climate change. Such natural disasters are coastal inundation in response to sea-level rise, and/or river flooding caused by heavy rain falls, additionally earthquakes and, etc. In terms of natural hazards, one of the most sensitive and culturally significant areas in Turkey is the Hatay province in the east Mediterranean region. The Hatay province is located on such a region which is not only vulnerable to coastal inundation and river flooding, but also is a tectonically and seismically sensitive area. In this study, for taking conservation measures against the natural hazards beforehand and decision-making on any future land-planning; a digital terrain model and a 3D fly-through model of the Hatay province were generated; then quantitatively and/or qualitatively interpreted by employing the Shuttle Radar Topographic Mission digital elevation model. Besides, stream drainage patterns, lineaments and structural–geolo...
... Terrain Analysis: Principles and Applications , New York: John Wiley and Sons. View all refer... more ... Terrain Analysis: Principles and Applications , New York: John Wiley and Sons. View all references, El Sheimy et al. 20058. El Sheimy, N., Valeo, C. and Habib, A. 2005. Digital Terrain Modeling: Acquisition, Manipulation and Applications , Boston, MA: Artech House. ...
The vulnerability of low-lying coastal areas in Turkey to inundation was quantified based on the ... more The vulnerability of low-lying coastal areas in Turkey to inundation was quantified based on the sea-level rise scenarios of 1, 2, and 3 m by 2205. Through digital elevation model (DEM) acquired by the shuttle radar topography mission (SRTM), the extent and ...
The study presents a new methodology to quantify spatiotemporal dynamics of climate change vulner... more The study presents a new methodology to quantify spatiotemporal dynamics of climate change vulnerability at a regional scale adopting a new conceptual model of vulnerability as a function of climate change impacts, ecological stability, and socioeconomic stability. Spatiotemporal trends of equally weighted proxy variables for the three vulnerability components were generated to develop a composite climate change vulnerability index (CCVI) for a Mediterranean region of Turkey combining Landsat time series data, digital elevation model (DEM)-derived data, ordinary kriging, and geographical information system. Climate change impact was based on spatiotemporal trends of August land surface temperature (LST) between 1987 and 2016. Ecological stability was based on DEM, slope, aspect, and spatiotemporal trends of normalized difference vegetation index (NDVI), while socioeconomic stability was quantified as a function of spatiotemporal trends of land cover, population density, per capita gross domestic product, and illiteracy. The zones ranked on the five classes of no-to-extreme vulnerability were identified where highly and moderately vulnerable lands covered 0.02% (12 km(2)) and 11.8% (6374 km(2)) of the study region, respectively, mostly occurring in the interior central part. The adoption of this composite CCVI approach is expected to lead to spatiotemporally dynamic policy recommendations towards sustainability and tailor preventive and mitigative measures to locally specific characteristics of coupled ecological-socioeconomic systems.
... 2.2 Stream drainage patterns Geomorphologists dealing with remote sensing applications have s... more ... 2.2 Stream drainage patterns Geomorphologists dealing with remote sensing applications have studied stream drainage patterns and their relationships to terrain conditions. ... Because of erosion and deformation, older volcanic terrains lack these distinctive features. ...
Recently, due to the excessive raining, some land and houses have been seen under water and faced... more Recently, due to the excessive raining, some land and houses have been seen under water and faced with flood disaster. In order to prevent this catastrophe, taking measures beforehand is so important. For this reason, in order to help with planning while land arrangements in urban and ru- ral areas are done, hydrologically analyzing the DEMs produced from the satellite images belong- ing to that region, locations of flooded areas are de- termined when excessive raining occurs. Therefore, in this study, DEM analysis is involved, as well. As software, RiverTools, a Geographic Information System, which analyzes digital elevation models (DEMs) was used. With RiverTools, all images be- longing to DEMs can be processed and its hydro- logic surface can be analyzed. In other words, all satellite images related to DEMs can be processed. As data, the DEM belonging to Cumberland basin in Kentucky State, USA was experimentally used and analyzed. Flooded areas were determined when water level re...
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