Estimativas de evapotranspiracao espacial e evaporacao de lagos no Pontal do Paranapanema pelo modelo conceitual de relacao complementar de Morton / Areal evapotranspiration and lake evaporation estimates in the Pontal do Paranapanema region by the Morton s complementary relationships conceptual model

AUTOR(ES)

Raimundo de Oliveira Roque

DATA DE PUBLICAÇÃO

2000

RESUMO

Morton s complementary relationships conceptual model was used to estimate the monthly averages of areal and potential evapotranspiration and lake evaporation in the Pontal do Paranapanema region. The model performance was verified in comparison to Penman s estimates and Class A pan measurements at two places: Presidente Prudente and Teodoro Sampaio, in the period 1976 - 97. Areal evapotranspiration monthly averages, ranging from 168 mm in summer to 52 mm in winter, 83 of potentials, were obtained at Teodoro Sampaio and ranging from 134 mm in summer to 17 mm in winter, 41 of potentials, were obtained at Presidente Prudente . The wet environment evaporation rates defined by Morton were close to the ones estimated by Penman s method The monthly average lake evaporation rates varied from 181 mm in summer to 78 mm in winter at Teodoro Sampaio, and from 176 mm. in summer to 90 mm in winter at Presidente Prudente. Penman s method overestimated the lake evaporation rates calculated by Morton s method by 8 at Teodoro Sampaio and underestimated by 5 at Presidente Prudente. At Teodoro Sampaio, Morton s method overestimated the lake evaporation in relation to Class A pan measurements by 14. Morton s model provided more realistic and consistent potential and areal evapotranspiration and lake evaporation rates, obtained from their effects on the rotine climatological observations, used to calculate potential evapotranspiration (evaporation).

ASSUNTO(S)

evapotranspiration evaporation relacao complementar de morton estimativas climatology estudo do clima e do tempo evaporacao pontal de paranapanema (sp)sao paulo (regiao oeste) estimates evapotranspiracao climatologia

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