Abstract: Water vapor characteristics over northeast Brazil for two contrasting years are discussed. During the wet year 1974, the precipitation efficiencies were less than 20% over the interior dry region and during the dry year ...

Abstract: The variation of air temperature at 2 m above the earth?s surface in South America (SA) between 1948 and 2007 is investigated primarily using the NCEP?NCAR reanalysis. In December?February (austral summer), the majority ...