01612nam a2200373 a 450000100080000000500110000800800410001910000220006024500790008226000410016130000090020252006290021165000230084065000150086365000220087865000100090065000100091065000170092065000240093765000160096165000270097765000200100465000160102465000120104065000210105265300110107365300220108465300230110665300130112965300140114265300370115665300180119365300270121112100452009-01-09       1974    bl uuuu      00u1 u    #d1 aHARGREAVES, G. H.  aPotential evapotranspiration irrigation requirements for Northeast Brazil.  a[Logan]: Utah State Universityc1974  a55p.  aActual evapotranspiration, potential evapotranspiration, dependable precipitation, moisture availability index, adequacy percentage and moisture deficit are defined. Methods and equations for calculating potential and crop evapotranspiration are presented. The relationship between mean precipitation and dependable precipitation is given for the 10 Northeastern States of Brazil. Tables giving temperature, relative humidity, precipitation, and potential evapotranspiration by months are presented for the states of the Brazilian Northeast. Proposed continuing studies relating moisture availability to yield are mentioned.  aevapotranspiration  aIrrigation  arelative humidity  aChuva  aClima  aClimatologia  aEvapotranspiração  aIrrigação  aPrecipitação pluvial  aRecurso natural  aTemperatura  aUmidade  aUmidade Relativa  aBrasil  aEvapotranpiration  aÍndice de umidade  aNordeste  aPotencial  aPotencial de evapotranspiração  aPrecipitation  aUmidade relativa do ar