16 Solar radiation is an important climatic variable for assessing reference evapotranspiration 17 (E0), but it is seldom available in weather station records. Meteosat satellite images processed 18 with the Heliosat-2 method provide the HelioClim-1 database, which displays spatialized 19 solar radiation data at a daily time step for Europe and Africa. The aim of the present work 20 was to inve...

cultura (ETc), que pode ser determinada pelo coeficiente de cultivo (Kc) e pela evapotranspiração referência (ETo). Desse modo, o presente trabalho teve como objetivo determinar a ETc, Kc eficiência no uso água (EUA) variedades uva viníferas (Vitis vinifera), Agreste Pernambucano. Foram estudadas três uvas quais sejam: Cabernet Sauvignon, Malbec Muscat Petit Grain. A ETc foi método do balanço h...

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[1] The Palmer Drought Severity Index (PDSI) has been widely used to study aridity changes in modern and past climates. Efforts to address its major problems have led to new variants of the PDSI, such as the self‐calibrating PDSI (sc_PDSI) and PDSI using improved formulations for potential evapotranspiration (PE), such as the Penman‐Monteith equation (PE_pm) instead of the Thornthwaite equation...