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Accueil du site → Doctorat → Turquie → Developing of a groundwater flow model for the area between Terkos lake and Canal Istanbul using GIS, remote sensing and numeric groundwater modelling

İstanbul Teknik Üniversites (2020)

Developing of a groundwater flow model for the area between Terkos lake and Canal Istanbul using GIS, remote sensing and numeric groundwater modelling

AHMED Khansaa Abdulelah Ahmed

Titre : Developing of a groundwater flow model for the area between Terkos lake and Canal Istanbul using GIS, remote sensing and numeric groundwater modelling

TERKOS GÖLÜ İLE KANAL İSTANBUL ARASINDAKİ BÖLGE İÇİN CBS, UZAKTAN ALGILAMA VE SAYISAL YÖNTEMLERLE YERALTI SUYU AKIŞ MODELİNİN GELİŞTİRİLMESİ

Auteur : AHMED Khansaa Abdulelah Ahmed

Université de soutenance : İstanbul Teknik Üniversitesi

Grade : Doctor of Philosophy (PhD) 2020

Résumé partiel
Artificial canals are man-made waterways constructed for many purposes such as navigation, water diversion, irrigation and water power generation. Republic of Turkey has planned to construct a 43150 meters (m) long, 145-150 m wide and 25 m deep massive navigational canal to connect the Black Sea to Marmara Sea in the European part of Istanbul. The canal is planned to be completedon the centenary of Turkey Republic, 2023. Canal Istanbul is a part of a series of mega projects including the new Istanbul airport and many additional bridges and large-scale infrastructure renewal. Expected cost of these projects are estimated to be $10 billion. This project is claimed to be a unique multi purposes projectwhich is beneficial for transportation, urbanization, energy supplying and constituting recreational areas. The project will serve marine navigation in order to reduce the pressure of the traffic in the Bosporu, 42,553 vessels in a year, the canal is designed to have capacity for 160 vessels a day, a total of 58,000 vessels a year. One other aim of materializing this canal is to reduce the accidents in Bosphorous strait with the newly built canal, maritime accidents in Bosphorus strait are expected to be decreased. Experts highlighted that the construction of the newly proposed canal may have adverse effects on the nearby fresh water resources in terms of enhancing seepage and saltwater intrusion. The excavation will increase the seepage amount towards the canal and may leadto the destruction of an important fresh water source for Istanbul city (TERKOS Lake) and the aquifer that connects the canal to the lake, which is at a distance of 1-1000-1200 m away from the Canal. This study quantifies the long term seepage interaction, seepage losses and the expected saltwater intrusion between Terkos Lake and Canal Istanbul. The study focused on the numerical modelling of groundwater flow in the aquifer system that links Canal istanbul with Terkos lake, which is considered as one of the most essentional fresh water resources of the city. Remote sensing data and GIS geodatabase are integrated in a groundwater flow modeling (MODFLOW) environment using GMS Groundwater Modeling System 10.3.6 graphical user interface to develop a long term groundwater flow model in order to simulate seepage flow in the aquifer system near Terkos Lake.

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