Editorial Type:
Article
Article Type:
Research Article

ON THE POSSIBILITY OF WEATHER MODIFICATION BY AIRCRAFT CONTRAILS

WALLACE B. MURCRAY Geophysical Institute, University of Alaska, College, Alaska

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Print Publication:
01 Oct 1970
DOI:
https://doi.org/10.1175/1520-0493(1970)098<0745:OTPOWM>2.3.CO;2
Page(s):
745–748
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Abstract

The possible effect of contrails in modifying the weather is reconsidered in the light of information obtained from ground-level contrails in Alaska. It appears likely that inadvertent cloud seeding by jet aircraft may be of the same order of magnitude as that attained in commercial cloud seeding operations. Further investigation is needed; but in the meantime, the possibility of contrail contamination should be kept in mind when evaluating the results of seeding operations.

Abstract

The possible effect of contrails in modifying the weather is reconsidered in the light of information obtained from ground-level contrails in Alaska. It appears likely that inadvertent cloud seeding by jet aircraft may be of the same order of magnitude as that attained in commercial cloud seeding operations. Further investigation is needed; but in the meantime, the possibility of contrail contamination should be kept in mind when evaluating the results of seeding operations.

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