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|United States Patent||5,621,410|
|Gray , et al.||April 15, 1997|
The disclosure is directed to a method and apparatus for remotely sensing electrical activity and potential for lightning occurrence. The disclosure is particularly directed to the use of such an apparatus and method to detect the electrical alignment of particles in upper levels of electrified storms. Storms are illuminated by radar in one or more orthogonal polarizations and the co-polar and cross-polar returns are correlated coherently and incoherently. The correlation coefficient, or a function thereof, is examined to determine the degree of particle alignment, and therefore the degree of electrification and potential for lightning occurrence. The phase of the correlation computation, in coherent processing, also detects particle alignment, which can be incorporated in the predictive decision. Correlation and phase can be displayed, recorded or, utilized for a prediction or warning.
|Inventors:||Gray; Grant R. (Socorro, NM), Krehbiel; Paul R. (Socorro, NM), Mc Crary; Stephen E. (Datil, NM), Brook; Marx (Socorro, NM), Chen; Tiehan (Albuquerque, NM), Rison; William (Socorro, NM)|
New Mexico Tech Research Foundation
|Filed:||November 5, 1992|
|Current U.S. Class:||342/26D ; 342/188; 342/460|
|Current International Class:||G01S 13/95 (20060101); G01S 13/00 (20060101); G01S 7/02 (20060101); G01S 7/285 (20060101); G01S 7/288 (20060101); G01S 013/95 ()|
|Field of Search:||342/26,188,460 364/420|
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|5140523||August 1992||Frankel et al.|
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