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Emergency Assessment of Postfire Debris-Flow Hazards for the 2009 Station Fire, San Gabriel Mountains, Southern California: Open-File Report 2009-1227 by Susan H. Cannon, Joseph E. Gartner, United U. S. Department of the Interior - Paperback
60.90 درهم

Emergency Assessment of Postfire Debris-Flow Hazards for the 2009 Station Fire, San Gabriel Mountains, Southern California: Open-File Report 2009-1227 by Susan H. Cannon, Joseph E. Gartner, United U. S. Department of the Interior - Paperback

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60.90 درهم 

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الأسعار تشمل ضريبة القيمة المضافة  التفاصيل
رقم ال ISBN
9781288671977
الفئات
سياسة
الكاتب
Susan H. Cannon, Joseph E. Gartner, United U. S. Department of the Interior
الناشر
Bibliogov
الوصف:

This report presents an emergency assessment of potential debris-flow hazards from basins burned by the 2009 Station fire in Los Angeles County, southern California. Statistical-empirical models developed for postfire debris flows are used to estimate the probability and volume of debris-flow production from 678 drainage basins within the burned area and to generate maps of areas that may ...

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البائع:
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معلومات المنتج

  •  

    المواصفات

    رقم ال ISBN
    9781288671977
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354300798
    المؤلفين
    الكاتب
    Susan H. Cannon, Joseph E. Gartner, United U. S. Department of the Interior
    المؤلفين
    الناشر
    Bibliogov
    رقم ال ISBN
    9781288671977
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354300798
    المؤلفين
    الكاتب
    Susan H. Cannon, Joseph E. Gartner, United U. S. Department of the Interior
    المؤلفين
    الناشر
    Bibliogov
    معلومات تقنية
    غلاف الكتاب
    غلاف عادي
    اللغات والبلدان
    لغة الكتاب
    الانجليزية
    إقرأ المزيد
  •  

    الوصف:

    This report presents an emergency assessment of potential debris-flow hazards from basins burned by the 2009 Station fire in Los Angeles County, southern California. Statistical-empirical models developed for postfire debris flows are used to estimate the probability and volume of debris-flow

    This report presents an emergency assessment of potential debris-flow hazards from basins burned by the 2009 Station fire in Los Angeles County, southern California. Statistical-empirical models developed for postfire debris flows are used to estimate the probability and volume of debris-flow production from 678 drainage basins within the burned area and to generate maps of areas that may be inundated along the San Gabriel mountain front by the estimated volume of material. Debris-flow probabilities and volumes are estimated as combined functions of different measures of basin burned extent, gradient, and material properties in response to both a 3-hour-duration, 1-year-recurrence thunderstorm and to a 12-hour-duration, 2-year recurrence storm. Debris-flow inundation areas are mapped for scenarios where all sediment-retention basins are empty and where the basins are all completely full. This assessment provides critical information for issuing warnings, locating and designing mitigation measures, and planning evacuation timing and routes within the first two winters following the fire. Tributary basins that drain into Pacoima Canyon, Big Tujunga Canyon, Arroyo Seco, West Fork of the San Gabriel River, and Devils Canyon were identified as having probabilities of debris-flow occurrence greater than 80 percent, the potential to produce debris flows with volumes greater than 100,000 m3, and the highest Combined Relative Debris-Flow Hazard Ranking in response to both storms. The predicted high probability and large magnitude of the response to such short-recurrence storms indicates the potential for significant debris-flow impacts to any buildings, roads, bridges, culverts, and reservoirs located both within these drainages and downstream from the burned area. These areas will require appropriate debris-flow mitigation and warning efforts. Probabilities of debris-flow occurrence greater than 80 percent, debris-flow volumes between 10,000 and 100,000 m3, and high Combin.

    خصائص المنتج:
    • الفئات: سياسة
    • غلاف الكتاب: غلاف عادي
    • لغة الكتاب: الانجليزية
    • الكاتب: Susan H. Cannon, Joseph E. Gartner, United U. S. Department of the Interior
    • الناشر: Bibliogov
    • رقم ال ISBN: 9781288671977
    • عدد الصفحات: 34
    • لأبعاد (الارتفاع*العرض*العمق): 9.69 x 7.44 x 0.07 inches
 

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