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| Titel |
Hydrogeology of The East of Buyukcekmece Basin |
| VerfasserIn |
Türkü Altıok, Yağmur Güneş, Büşra Ayhan, Remzi Karagüzel |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250144224
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| Publikation (Nr.) |
 EGU/EGU2017-8027.pdf |
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| Zusammenfassung |
| Buyukcekmece is located in the West of Istanbul in Turkey and Buyukcekmece Lake is
poured to Sea of Marmara. In this study, we have investigated hydrogeology of The East of
Buyukcekmece Basin which is an important source to provide drinking water to Istanbul.
Meteorological data and hydrologic measurements have been used to calculate water balance
of the east part of the basin. Total flow has been calculated as 54.513 x 106 m3
and total infiltration has been shown as 16.5 x 106 m3. Dropdown measurements
have been used to calculate transmissibility (T) and hydraulic conductivity (K) by
using both Dupuit method and empirical calculations. In result, K values varied
between 10−7m/s and 10−8 m/s degrees. Groundwater quality of the study area
has been investigated with the help of groundwater samples’ chemical analysis
results. These results have been used to create Piper, Scholler, Wilcox and USA
Salinity Diagram. According to Piper diagram, groundwater from the study area
can be classified as type Ca-HCO3. Due to Schoeller, The anion cation trend of
the samples exhibit as Ca>Mg>Na>K and HCO3 > Cl>SO4 and they can be
classified as Normal Chlorine water and Normal Sulfate water. The KN-5 sample
disrupts the 20.41% Cl meq/l value and it is included in the Oligochloride waters.
According to USA Salinity Diagram, groundwater of the study area can be classified
as C1S3. As a result of this study, according WHO (World Health Organization)
groundwater samples from the east of the Buyukcekmece Basin is meeting the
drinking water standards except its electric conductivity values where it has been
measured for KN-7, KN-8 and KN-9 respectively 7710, 6780 and 6180 μS/cm. Those
samples are predicted to be deep circulated water samples with sea water intrusion. |
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