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Rn ( mm/día ) = R N /C a radiación neta

Rn ( mm/día ) = R N /C a radiación neta C a = 59.6 cal/mm.cm 2 coeficiente de transformación R N ( cal/cm 2 .día ) = Ri-Rf-Re Ri ( cal/cm 2 .día ) = Ra (0.18 +0.55 n/N) radiación incidente real o también, Ri ( cal/cm 2 .día ) = Ra (0.29 cos(lat°) +0.52 n/N)

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Rn ( mm/día ) = R N /C a radiación neta

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  1. Rn (mm/día) = RN/Ca radiación neta Ca = 59.6 cal/mm.cm2 coeficiente de transformación RN (cal/cm2.día) = Ri-Rf-Re Ri (cal/cm2.día) = Ra (0.18 +0.55 n/N) radiación incidente real o también, Ri (cal/cm2.día) = Ra (0.29 cos(lat°) +0.52 n/N) Re (cal/cm2.día) =  T(°K)4 (0.56-0.092(ea)0.5)(0.1+0.9n/N) radiación emitida  = 1,17.10-7 cal/cm2.día.K4 constante de Stephan Boltzman

  2. es (Pa)= 611 . exp( 17,27 T / (237,30 + T)) presión de saturación de/dT =  (Pa/°C)= 4098 es / (237,30 + T)2 Rh = e/ es humedad relativa

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