PropertyValue
dbpedia-owl:abstract
  • La lame d'eau est une mesure d'écoulement des précipitations atmosphériques au sein du bassin versant d'un cours d'eau.
  • O número de escoamento (frequentemente referido por número de escorrência, número de curva ou simplesmente CN ou SCS-CN) é um parâmetro empírico utilizado em hidrologia para obter previsões do caudal de escoamento superficial directo ou de infiltração em função do volume de excesso de precipitação. A determinação do número de escoamento e os seus valores numéricos resultaram da análise empírica dos dados obtidos por observação do processo de geração de escoamento superficial em pequenas bacias hidrográficas (microbacias) e em parcelas de encosta monitorizadas pelo Soil Conservation Service do Departamento de Agricultura dos Estados Unidos (USDA). O método é demonstradamente preciso e de fácil cálculo, sendo amplamente utilizado para determinar a quantidade aproximada de escoamento superficial directo gerado numa área específica em resposta a determinado um evento de precipitação. Como o método foi desenvolvido pelo Natural Resources Conservation Service do USDA, anteriormente designado por Soil Conservation Service ou SCS, é frequentemente designado por método do número de curva do SCS (do inglês: "SCS runoff curve number").
  • Metoda CN křivek slouží k jednoduchému výpočtu odtoku při srážkoodtokové události na malých povodích. Srážka je rozdělena na ztráty a efektivní déšť podle čísla CN křivky, které reprezentuje vlastnosti povodí – půdní poměry, využití území (landuse) a předchozí vláhové podmínky. Použité vztahy jsou empirické, odvozené na základě analýzy dat z malých povodí v USA. Metoda se však uplatnila také v mnoha jiných zemích včetně České republiky.Metoda byla vyvinuta americkou Službou na ochranu půd (Soil conservation service, metoda se označuje také jako SCS CN).
  • 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. The curve number method was developed by the USDA Natural Resources Conservation Service, which was formerly called the Soil Conservation Service or SCS — the number is still popularly known as a "SCS runoff curve number" in the literature. The runoff curve number was developed from an empirical analysis of runoff from small catchments and hillslope plots monitored by the USDA. It is widely used and is an efficient method for determining the approximate amount of direct runoff from a rainfall event in a particular area.The runoff curve number is based on the area's hydrologic soil group, land use, treatment and hydrologic condition. References, such as from USDA indicate the runoff curve numbers for characteristic land cover descriptions and a hydrologic soil group.The runoff equation is:whereis runoff ([L]; in)is rainfall ([L]; in)is the potential maximum soil moisture retention after runoff begins ([L]; in)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 and accurate relationship.The runoff curve number, , is then related has a range from 30 to 100; lower numbers indicate low runoff potential while larger numbers are for increasing runoff potential. The lower the curve number, the more permeable the soil is. As can be seen in the curve number equation, runoff cannot begin until the initial abstraction has been met.
dbpedia-owl:wikiPageID
  • 1511215 (xsd:integer)
dbpedia-owl:wikiPageLength
  • 2880 (xsd:integer)
dbpedia-owl:wikiPageOutDegree
  • 7 (xsd:integer)
dbpedia-owl:wikiPageRevisionID
  • 109368992 (xsd:integer)
dbpedia-owl:wikiPageWikiLink
prop-fr:group
  • note
prop-fr:wikiPageUsesTemplate
dcterms:subject
rdfs:comment
  • La lame d'eau est une mesure d'écoulement des précipitations atmosphériques au sein du bassin versant d'un cours d'eau.
  • 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. The curve number method was developed by the USDA Natural Resources Conservation Service, which was formerly called the Soil Conservation Service or SCS — the number is still popularly known as a "SCS runoff curve number" in the literature.
  • Metoda CN křivek slouží k jednoduchému výpočtu odtoku při srážkoodtokové události na malých povodích. Srážka je rozdělena na ztráty a efektivní déšť podle čísla CN křivky, které reprezentuje vlastnosti povodí – půdní poměry, využití území (landuse) a předchozí vláhové podmínky. Použité vztahy jsou empirické, odvozené na základě analýzy dat z malých povodí v USA.
  • O número de escoamento (frequentemente referido por número de escorrência, número de curva ou simplesmente CN ou SCS-CN) é um parâmetro empírico utilizado em hidrologia para obter previsões do caudal de escoamento superficial directo ou de infiltração em função do volume de excesso de precipitação.
rdfs:label
  • Lame d'eau
  • Abflussbeiwert
  • Coeficiente de escurrimiento
  • Metoda CN křivek
  • Número de escoamento
  • Runoff curve number
owl:sameAs
http://www.w3.org/ns/prov#wasDerivedFrom
foaf:isPrimaryTopicOf
is dbpedia-owl:wikiPageDisambiguates of
is dbpedia-owl:wikiPageRedirects of
is dbpedia-owl:wikiPageWikiLink of
is foaf:primaryTopic of