Nov 8 2004
From The Space Library
NASA scientists published research showing that the El Niño Southern Oscillation (ENSO) is the single most important factor in interannual rainfall variability throughout the world. The scientists had used data from the Tropical Rainfall Measuring Mission (TRMM) satellite to identify geographic areas with the greatest variations in rainfall between 1998 and 2002. After comparing the TRMM data with rainfall patterns over the previous 50 years, they had found that changes in the ENSO directly correlated with local changes in rainfall patterns around the world. The TRMM satellite, a joint project of NASA and JAXA, used microwaves to measure precipitation over the tropics. (NASA, “TRMM Satellite El Niño Holds the Reins on Global Rains,” news release 04-369, 8 November 2004; Z. S. Haddad et al., “Global Variability of Precipitation According to the Tropical Rainfall Measuring Mission,” Journal of Geophysical Research ~ Atmospheres 109, no. D17 (16 September 2004): D17103.
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