M.Sc. Tezi Görüntüleme

Student: Arzu Fırat ERSOY
Supervisor: Yrd. Doç. Dr. Fatma GÜLTEKİN
Department: Geological Engineering
Institution: Graduate School of Natural and Applied Sciences
University: Karadeniz Technical University, Turkey
Title of the Thesis: Groundwater Flow Model of Gümüşhacıköy (Amasya) Aquifer
Level: M.Sc.
Acceptance Date: 16/7/2007
Number of Pages: 206
Registration Number: Di599
Summary:

      In this study, groundwater flow model was performed for Gümüşhacıköy Aquifer, where groundwater levels decrease with related extensive groundwater exploitation in average of 20-25m for the last two decades. Gümüşhacıköy Plain is covered 300.225 km2 where totally drainage area is extended to an area of 1060.44 km2.

Groundwater bearing units in Gümüşhacıköy Plain are Quaternary aged alluvium and Pliocene aged Söğütlü formations. Recharges, where groundwater flow direction is from west to the east, are composed of Late Eocene aged volcano-sedimentary rocks and Late Jurassic-Early Cretaceous aged limestone. Discharge in the basin occurs via drainage wells.

      During the consisting of groundwater flow model of the basin, geological, hydrogeological properties were defined, data sets of these parameters arranged. These data sets were digitized on ArcGis 8.3 program and interpreted on ArgusONE program and groundwater flow model was evaluated.

Model period includes 1965-2005. There were 164 stress period for three months in the model. According to the hydraulic head values belonging the different years in Gümüşhacıköy Plain, piezometric levels decreased in the east of the plain resulting from over pumping rate from the wells. Model was calibrated by means of MODFLOWP program by using the hydraulic heads. Since the estimated and calculated values were in agreement, conceptual model of the aquifer represented successfully the groundwater flow system. According to the results of the groundwater flow model, groundwater levels will decrease in the future when groundwater exploitation increases from the aquifer. To prevent this, groundwater usage should be regulated, and uncontrolled groundwater use must be terminated.

      

Key Words: Gümüşhacıköy Aquifer, Hydrogeology, Groundwater Flow Model, MODFLOW, Argus ONE