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  2. Runoff model (reservoir) - Wikipedia

    en.wikipedia.org/wiki/Runoff_model_(reservoir)

    Otherwise, the factor A can be determined from a data record of rainfall and runoff using the method explained below under non-linear reservoir. With this method the reservoir can be used as a black box model. Conversions 1 mm/day corresponds to 10 m 3 /day per ha of the watershed 1 L/s per ha corresponds to 8.64 mm/day or 86.4 m 3 /day per ha

  3. Storm Water Management Model - Wikipedia

    en.wikipedia.org/wiki/Storm_Water_Management_Model

    Rain Gardens are shallow depressions filled with an engineered soil mix that supports vegetative growth. They are usually used on individual home lots to capture roof runoff. Typical soil depths range from 6 to 18 inches. The capture ratio is the ratio of the rain garden's area to the impervious area that drains onto it.

  4. Runoff curve number - Wikipedia

    en.wikipedia.org/wiki/Runoff_curve_number

    is the initial abstraction ([L]; in), or the amount of water before runoff, such as infiltration, or rainfall interception by vegetation; historically, it has generally been assumed that =, although more recent research has found that = may be a more appropriate relationship in urbanized watersheds where the CN is updated to reflect developed ...

  5. Watershed delineation - Wikipedia

    en.wikipedia.org/wiki/Watershed_delineation

    Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.

  6. Mapping the torrential rainfall in California - AOL

    www.aol.com/mapping-torrential-rainfall...

    Rain continues to fall in Southern California from an atmospheric river, raising the risk for additional mudslides with more than 120 reported so far in Los Angeles.

  7. Hydrograph - Wikipedia

    en.wikipedia.org/wiki/Hydrograph

    A stream hydrograph is commonly determining the influence of different hydrologic processes on discharge from the subject catchment. Because the timing, magnitude, and duration of groundwater return flow differs so greatly from that of direct runoff, separating and understanding the influence of these distinct processes is key to analyzing and simulating the likely hydrologic effects of ...

  8. Hilary obliterated daily rainfall records. How much fell in ...

    www.aol.com/news/hilary-obliterated-daily...

    Other record-breaking totals were reported in Lewis Ranch, which recorded 7.04 inches of rain; Leona Valley and Crystal Lake, both of which recorded 6.97 inches; and Mt. Baldy, with 5.84 inches.

  9. Water in California - Wikipedia

    en.wikipedia.org/wiki/Water_in_California

    Rain typically falls in California only during the winter and spring months, from October through May, with more rain falling on the northern half of the state than the southern. Approximately 75 percent of the total precipitation volume occurs north of Sacramento, while 75 percent of the total water demand is in the south.

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