rainfall runoff

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• Runoff model (reservoir) — A runoff model is a mathematical model describing the rainfall runoff relations of a rainfall catchment area or watershed. More precisely, it produces the surface runoff hydrograph as a response to a rainfall hydrograph as input. In other words,… …   Wikipedia

• Runoff — Run off or runoff may refer to:* Surface runoff, the flow of water, from rain, snowmelt, or other sources, over land * Runoff model (reservoir), a mathematical model describing the rainfall runoff relations of a rainfall catchment area or… …   Wikipedia

• Surface runoff — Runoff flowing into a stormwater drain Surface runoff is the water flow that occurs when soil is infiltrated to full capacity and excess water from rain, meltwater, or other sources flows over the land. This is a major component of the water… …   Wikipedia

• Runoff curve number — The runoff curve number (also called a curve number or simply CN) is an empirical parameter used in hydrology for predicting direct runoff or infiltration from rainfall excess.[1] The curve number method was developed by the USDA Natural… …   Wikipedia

• runoff coefficient —    A dimensionless coefficient to estimate runoff as a certain percentage of storm rainfall [16] …   Lexicon of Cave and Karst Terminology

• rainfall excess —    That portion of rain fall that contributes directly to runoff [16] …   Lexicon of Cave and Karst Terminology

• Types of rainfall — There are three distinct, main types of rainfall, or forms that rain can fall in. These are convectional rainfall, frontal or cyclonic rainfall, and orographic or relief rainfall. NOTOC Convectional rainfall Convectional rainfall usually occurs… …   Wikipedia

• surface runoff — noun Overland flow of excess water (with or without accumulated contaminants) that cannot be absorbed by the ground as infiltration. When there is very heavy rainfall on California hillsides over a prolonged period, there is almost always ensuing …   Wiktionary

• hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …   Universalium

• Antecedent moisture — is a term from the fields of Hydrology and sewage collection and disposal that describes the relative wetness or dryness of a watershed or sanitary sewershed. Antecedent moisture conditions change continuously and can have a very significant… …   Wikipedia

• HBV hydrology model — The HBV hydrology model, or Hydrologiska Byråns Vattenbalansmodell, is a computer simulation used to analyze river discharge and water pollution. Developed originally for use in Scandinavia [Bergström, S., 1976. Development and application of a… …   Wikipedia