نمایش منو
صفحه اصلی
جستجوی پیشرفته
فهرست کتابخانه ها
عنوان
Electrical resistivity tomography determines the spatial distribution of clay layer thickness and aquifer vulnerability, Kandal Province, Cambodia
پدید آورنده
Uhlemann, SKuras, ORichards, LANaden, EPolya, DA
موضوع
رده
کتابخانه
مرکز و کتابخانه مطالعات اسلامی به زبانهای اروپایی
محل استقرار
استان:
قم
ـ شهر:
قم
تماس با کتابخانه :
32910706
-
025
شماره کتابشناسی ملی
شماره
LA5fz987sv
عنوان و نام پديدآور
عنوان اصلي
Electrical resistivity tomography determines the spatial distribution of clay layer thickness and aquifer vulnerability, Kandal Province, Cambodia
نام عام مواد
[Article]
نام نخستين پديدآور
Uhlemann, SKuras, ORichards, LANaden, EPolya, DA
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
© 2017 Despite being rich in water resources, many areas of South East Asia face difficulties in securing clean water supply. This is particularly problematic in regions with a rapidly growing population. In this study, the spatial variability of the thickness of a clay layer, controlling surface - groundwater interactions that affect aquifer vulnerability, was investigated using electrical resistivity tomography (ERT). Data were acquired along two transects, showing significant differences in the imaged resistivities. Borehole samples were analyzed regarding particle density and composition, and linked to their resistivity. The obtained relationships were used to translate the field electrical resistivities into lithologies. Those revealed considerable variations in the thickness of the clay layer, ranging from 0 m up to 25 m. Geochemical data, highlighting zones of increased ingress of surface water into the groundwater, confirmed areas of discontinuities in the clay layer, which act as preferential flow paths. The results may guide urban planning of the Phnom Penh city expansion, in order to supply the growing population with safe water. The presented approach of using geophysics to estimate groundwater availability, accessibility, and vulnerability is not only applicable to Kandal Province, Cambodia, but also to many other areas of fast urbanization in South East Asia and beyond.
مجموعه
تاريخ نشر
2017
عنوان
Lawrence Berkeley National Laboratory
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب
اطلاعات رکورد کتابشناسی
نوع ماده
[Article]
کد کاربرگه
278464
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
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×
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×
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