Winter Orographic Cloud Seeding Northeast of Bear Lake, Utah
AbstractA wintertime operational cloud seeding program was conducted in portions of the Bear Lake watershed of Utah, Wyoming, and Idaho for a 15 year period. Seeding operations were curtailed in 1970 but initiated again in 1979. This sequence of events provides the opportunity to examine possible seedinq effects over the 18 year period as well as studying the natural precipitation regime that fell between the two seeded periods. Results of this analysis indicate approximately an 11 percent increase in April I snowpack water content based upon a target/control evaluation. A double mass plot of the target/control April 1 snowpack water content indicates breaks in slope coincident with the years of project initiation, termination, and re-initiation. This double mass plot lends considerable credence to the interpretation that the indicated 11 percent difference in snowpack can be attributed to the cloud seeding activities.
How to Cite
Griffith, D., Thompson, J., & Shaffer, R. (2012). Winter Orographic Cloud Seeding Northeast of Bear Lake, Utah. The Journal of Weather Modification, 15(1), 23–27. https://doi.org/10.54782/jwm.v15i1.77
Authors that submit papers for publication agree to the Journal’s copyright and publication terms. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the manuscript’s authorship and initial publication in Journal of Weather Modification. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in the Journal of Weather Modification. Authors are permitted to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process to encourage productive exchanges and greater citation of the published article.
Articles are published online using restricted access for the first year. After the first year, articles are made freely available online. Immediate open access for an article may be obtained by the author paying an open access fee which is in addition to the normal page changes. Authors are expected to honor a page charge in order to support publication and distribution of the journal. After the author approves the gallery formatted version for publication, the Weather Modification Association’s Secretary will invoice the corresponding author for the page charges and payment is due within 30 days.