Monitoring of protected bands of Terkos drinking water reservoir of metropolitan Istanbul near the Black Sea coast using satellite data

Coskun, H. Gonca; Gulergun, Ozlem; Yilmaz, Levent

doi:10.1016/j.jag.2005.06.003

Cited by 20 publications

(14 citation statements)

References 7 publications

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“…1. Omerli Reservoir and its watershed is illustrated in this figure in the form of georeferenced vector data with the streams joining the reservoirs (Coskun et al 2006).…”

Section: The Study Areamentioning

confidence: 99%

Determination of Environmental Quality of a Drinking Water Reservoir by Remote Sensing, GIS and Regression Analysis

Coskun

Tanık

Algancı

et al. 2008

Water Air Soil Pollut

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Istanbul, housing a population over ten million and with population increase rate of approximately twice that of Turkey, is one of the greatest metropolitan cities of the world. As a consequence of rapid population growth and industrial development, Omerli watershed is highly affected by wastewater discharges from the residential areas and industrial plants. The main objective of this study is to investigate the temporal assessment of the land-use/ cover of the Omerli Watershed and the water quality changes in the Reservoir. The study is mainly focused on the acquisition and analysis of the Satellite Probatoire de l'Observation de la Terre (SPOT) (1993), Indian Remote Sensing satellite (IRS) (1996 and 2000) and Landsat Thematic Mapper (TM) (2004, 2005, and 2006) satellite images that reflect the drastic land-use/cover changes utilizing the ground truth measurements. The rapid, uncontrolled, and illegal urbanization coupled with insufficient infrastructure has caused the deterioration of the water quality within the past two decades in the Omerli watershed. The water quality analysis of the drinking water Reservoir within the watershed is investigated using 2006 dated Landsat TM satellite digital data. The results are compiled and compared with the water quality measurements of parameters like total nitrogen (TN), the total phosphorus (TP), chlorophyll a (CL) and total dissolved solids (TDS). The observed reflectance shows a strong relationship with the water quality parameters and thus, the satellite data proved to provide a useful index of TN, TP, CL and TDS. Moreover, the linkage between the water quality parameters and the individual band reflectance values are supported by multiple regression analysis.

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“…1. Omerli Reservoir and its watershed is illustrated in this figure in the form of georeferenced vector data with the streams joining the reservoirs (Coskun et al 2006).…”

Section: The Study Areamentioning

confidence: 99%

Determination of Environmental Quality of a Drinking Water Reservoir by Remote Sensing, GIS and Regression Analysis

Coskun

Tanık

Algancı

et al. 2008

Water Air Soil Pollut

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“…The study area of the Ömerli Water Basin and Dam is presented in Fig. 1 as geo-referenced vector data with streams, including the whole Istanbul Water Basin Area (Coskun et al 2006).…”

Section: The Study Areamentioning

confidence: 99%

“…Distinct spectral signatures obtained from satellite observations correspond to water bodies of different composition. Remotely sensed satellite data must always be combined with ground truth (in-situ) measurements to allow for an accurate and unambiguous interpretation (Coskun et al 2006).…”

mentioning

confidence: 99%

Environmental modelling of Omerli catchment area in Istanbul, Turkey using remote sensing and GIS techniques

Coskun

Alparslan

2008

Environ Monit Assess

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Omerli Reservoir is one of the major drinking water reservoirs of Greater Metropolis Istanbul, providing 40% of the overall water demand. Istanbul where is one of the greatest metropolitan areas of the world with a population over 10 million and a rate of population increase about twice that of Turkey. As a result of population growth and industrial development, Omerli watershed is highly affected by the wastewater discharges from the residential areas and industrial plants. The main objective of this study is to investigate the temporal assessment of the land-use/cover of the Omerli Watershed and the water quality changes in the Reservoir. It is not possible to adequately control urbanization and other pollution sources affecting the water quality. Responses of these detrimental effects are due to rapidly increasing population, unplanned and illegal housing, and irrelevant industries at the protection zones of the watershed, together with insufficient infrastructure. The study is focused on the assessment of urbanization in relation to land use and water quality using Remote Sensing (RS) and Geographic Information Systems (GIS) techniques for all the four protection zones of the Reservoir and a time variant analyzing model is obtained. IRS-1C LISS and IRS-1C PAN, LANDSAT-5 TM satellite data of 1997, 1998, 2000, 2001 and 2006 are analyzed by confirmation through the ground truth data. RS data have been transferred into UTM coordinate system and image enhancement and classification techniques were used. Raster data were converted to vector data that belongs to study area to analyze in GIS for the purpose of planning and decision-making on protected watersheds.

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“…In recent years, management strategies to preserve the water quality and the ecosystem of surface waters have been encouraged. Research on the classification of the water quality of surface water reservoirs (Nakashima et al 2007;Hartig et al 2009;Baykal et al 2000;Mallin et al 2009;Ustun et al 2006) and effects of land use on water quality have been carried out (Chang et al 2008;Coskun and Alparslan 2009;Coskun 2006;Lin et al 2009;Liu et al 2009). Today, nearly 97% of Istanbul's drinking water is supplied from surface sources which are active lakes and dams (Istanbul Master Plan Consortium 2006).…”

Section: Introductionmentioning

confidence: 99%

Assessment of pollution profile in Buyukcekmece Watershed, Turkey

Guyer

İlhan

2010

Environ Monit Assess

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Buyukcekmece Lake located north of the Marmara Sea coast of Turkey is the third largest water resources among the six main reservoirs of a megacity Istanbul, providing 17% water demand. This study aims to investigate the water quality changes in Buyukcekmece Lake and to classify it in accordance to Turkish Water Pollution Control Regulation for inland surface waters, and assess the impacts of the land-use practices, population density, and settlement in the Buyukcekmece watershed. Physical, chemical, and biological quality of Büyükçekmece Lake has been investigated between December 2007 and June 2008 by collecting samples from the Lake and four streams that feed Büyükçekmece Lake. Land use profile maps of the water basin were created by using ARC-GIS to ensure the quality of drinking water. It was determined that the water quality of Büyükçekmece Lake was still of overall second class, implying that it can be used as a safe drinking water resource following a conventional water treatment scheme; however, it is moving toward the third class. Remarkable portion of the pollution in water basin was attributed to domestic wastewater discharges. Agricultural areas that occupy more than half of the water basin have also adversely affected the water quality.

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Monitoring of protected bands of Terkos drinking water reservoir of metropolitan Istanbul near the Black Sea coast using satellite data

Cited by 20 publications

References 7 publications

Determination of Environmental Quality of a Drinking Water Reservoir by Remote Sensing, GIS and Regression Analysis

Determination of Environmental Quality of a Drinking Water Reservoir by Remote Sensing, GIS and Regression Analysis

Environmental modelling of Omerli catchment area in Istanbul, Turkey using remote sensing and GIS techniques

Assessment of pollution profile in Buyukcekmece Watershed, Turkey

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