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Geophysical Characterization of the American River Levees, Sacramento, California, Using Electromagnetics, Capacitively Coupled Resistivity, and DC Re by Theodore H. Acsh, United U. S. Department of the Interior, Et Al - Paperback
58.80 درهم

Geophysical Characterization of the American River Levees, Sacramento, California, Using Electromagnetics, Capacitively Coupled Resistivity, and DC Re by Theodore H. Acsh, United U. S. Department of the Interior, Et Al - Paperback

كن أول من يقيِّم هذا المنتج 

58.80 درهم 

  - ستوفر -58.80 درهم
الأسعار تشمل ضريبة القيمة المضافة  التفاصيل
رقم ال ISBN
9781288713721
الفئات
سياسة
الكاتب
Theodore H. Acsh, United U. S. Department of the Interior, Et Al
الناشر
Bibliogov
الوصف:

A geophysical characterization of a portion of American River levees in Sacramento, California was conducted in May, 2007. Targets of interest included the distribution and thickness of sand lenses that underlie the levees and the depth to a clay unit that underlies the sand. The concern is that the erosion of these sand lenses can lead to levee failure in highly populated areas of ...

تشحن من الولايات المتحدة
اشحن الى دبي (تغيير المدينة)
التوصيل خلال السبت ١ سبتمبر - الأحد ٢ سبتمبر الي دبي

حالة السلعة:
جديدة
البائع:
InternationalBookStore (87% تقييم ايجابي)

معلومات المنتج

  •  

    المواصفات

    رقم ال ISBN
    9781288713721
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354439344
    المؤلفين
    الكاتب
    Theodore H. Acsh, United U. S. Department of the Interior, Et Al
    المؤلفين
    الناشر
    Bibliogov
    رقم ال ISBN
    9781288713721
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354439344
    المؤلفين
    الكاتب
    Theodore H. Acsh, United U. S. Department of the Interior, Et Al
    المؤلفين
    الناشر
    Bibliogov
    معلومات تقنية
    غلاف الكتاب
    غلاف عادي
    اللغات والبلدان
    لغة الكتاب
    الانجليزية
    إقرأ المزيد
  •  

    الوصف:

    A geophysical characterization of a portion of American River levees in Sacramento, California was conducted in May, 2007. Targets of interest included the distribution and thickness of sand lenses that underlie the levees and the depth to a clay unit that underlies the sand. The concern is that

    A geophysical characterization of a portion of American River levees in Sacramento, California was conducted in May, 2007. Targets of interest included the distribution and thickness of sand lenses that underlie the levees and the depth to a clay unit that underlies the sand. The concern is that the erosion of these sand lenses can lead to levee failure in highly populated areas of Sacramento. DC resistivity (Geometric's OhmMapper and Advanced Geosciences, Inc.'s SuperSting R8 systems) and electromagnetic surveys (Geophex's GEM-2) were conducted over a 6 mile length of the levee on roads and bicycle and horse trails. 2-D inversions were conducted on all the geophysical data. The OhmMapper and SuperSting surveys produced consistent inversion results that delineated potential sand and clay units. GEM-2 apparent resistivity data were consistent with the DC inversion results. However, the GEM-2 data could not be inverted due to low electromagnetic response levels, high ambient electromagnetic noise, and large system drifts. While this would not be as large a problem in conductive terrains, it is a problem for a small induction number electromagnetic profiling system such as the GEM-2 in a resistive terrain (the sand lenses). An integrated interpretation of the geophysical data acquired in this investigation is presented in this report that includes delineation of those areas consisting of predominantly sand and those areas consisting predominantly of clay. In general, along most of this part of the American River levee system, sand lenses are located closest to the river and clay deposits are located further away from the river. The interpreted thicknesses of the detected sand deposits are variable and range from 10 ft up to 60 ft. Thus, despite issues with the GEM-2 inversion, this geophysical investigation successfully delineated sand lenses and clay deposits along the American River levee system and the approximate depths to underlying clay zones. The results of thi.

    خصائص المنتج:
    • الفئات: سياسة
    • غلاف الكتاب: غلاف عادي
    • لغة الكتاب: الانجليزية
    • الكاتب: Theodore H. Acsh, United U. S. Department of the Interior, Et Al
    • الناشر: Bibliogov
    • رقم ال ISBN: 9781288713721
    • عدد الصفحات: 26
    • لأبعاد (الارتفاع*العرض*العمق): 9.69 x 7.44 x 0.05 inches
 

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