quarta-feira, agosto 29, 2007

Long-Term Increase in Rainfall Seen in Tropics

The trend of increasing rainfall over the tropics was clearer once NASA scientists removed the effects on rainfall of major volcanic eruptions and El Niño from the data record. This figure shows how much each year's tropical rainfall differed from the long-term average rainfall over the entire 27-year period. Credit: Guojun Gu, NASA