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Solar Forcing of the Stream Flow of a Continental Scale South American River  

Pablo Mauas   Submitted: 2008-11-13 16:53

Solar forcing on climate has been reported in several studies although the evidence so far remains inconclusive. Here, we analyze the stream flow of one of the largest rivers in the world, the Paran? in southeastern South America. For the last century, we find a strong correlation with the sunspot number, in multidecadal time scales, and with larger solar activity corresponding to larger stream flow. The correlation coefficient is r=0.78, significant to a 99% level. In shorter time scales we find a strong correlation with El Ni?o. These results are a step toward flood prediction, which might have great social and economic impacts.

Authors: Mauas, Pablo J. D.; Flamenco, Eduardo; Buccino, Andrea P.
Projects: None

Publication Status: Published in Physical Review Letters, vol. 101, Issue 16, id. 168501
Last Modified: 2008-11-14 18:23
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