Paper No. 72066 of the Water Resources Bulletin. Discussions are open until January 1, 1973.
1752-1688/asset/bannerforeground.gif?v=1&s=bf00ff8247a6868653da8aff91ea33d86466427e)
PRELIMINARY STUDIES IN THE TERRESTRIAL DISPOSITION OF SILVER FROM CLOUD SEEDING†
Article first published online: 8 JUN 2007
DOI: 10.1111/j.1752-1688.1972.tb05213.x
Issue
1752-1688/asset/cover.gif?v=1&s=6d8ba4f05904371bea7c7a5b8a47404bf9279832 "JAWRA Journal of the American Water Resources Association")
JAWRA Journal of the American Water Resources Association
Volume 8, Issue 4, pages 715–723, August 1972
Additional Information
How to Cite
Teller, H. L. and Cameron, D. R. (1972), PRELIMINARY STUDIES IN THE TERRESTRIAL DISPOSITION OF SILVER FROM CLOUD SEEDING. JAWRA Journal of the American Water Resources Association, 8: 715–723. doi: 10.1111/j.1752-1688.1972.tb05213.x
- †
Publication History
- Issue published online: 8 JUN 2007
- Article first published online: 8 JUN 2007
- Abstract
- References
- Cited By
Keywords:
- KEY TERMS;
- cloud seeding;
- Colorado;
- ecology;
- environmental effect;
- silver iodide;
- weather modification
ABSTRACT. Silver iodide is currently the most favored cloud seeding material in weather modification projects. While the literature indicates that its ecological effects are likely to be insignificant, its disposition in the terrestrial ecosystem after snow melt has not been adequately studied. Silver levels in soil, plant and litter material are being monitored twice a year on a mountainous area in southwestern Colorado, to determine whether annual accretion from cloud seeding can be measured with current techniques and whether significant changes in silver concentration take place in grass, aspen, and spruce communities. One AgI generator site is also being monitored.
Comparison of silver concentrations in terrestrial components of the target area indicates no measurable increase after the first winter's seeding. On an ash basis, spruce foliage and litter contain about four times as much silver as soil. On a dry weight basis, soil from all three plant communities contains about six times as much silver as foliage. Consistent increases in silver concentration were found in soil and pine foliage within 200 meters of one generator site.