Physics
Scientific paper
Sep 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3118111d&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 18, CiteID L18111
Physics
3
Meteorology And Atmospheric Dynamics: Climatology (1620), Meteorology And Atmospheric Dynamics: Lightning, Meteorology And Atmospheric Dynamics: Precipitation (1854), Meteorology And Atmospheric Dynamics: Remote Sensing
Scientific paper
The authors use satellite data to examine the relationship between lightning and upper-level radar reflectivity. They find correlations between average flash rates and upper-level reflectivities over both land and ocean, although both flash rates and reflectivities are much lower over ocean than land. Analysis of the data using Empirical Orthogonal Functions (EOFs) shows similar EOFs for averaged lightning and reflectivity. In contrast, the EOFs of the anomalies of lightning and reflectivity have different spatial patterns; however, both have principal component time series that are correlated with the Southern Oscillation Index and, hence, El Niño. Differences in behavior of the lightning and reflectivity anomaly EOFs and principal components suggest that El Niño plays a smaller role in lightning anomaly than precipitation anomaly.
Durden S. L.
Haddad Z. S.
Meagher J. P.
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