Please use this identifier to cite or link to this item:
https://hdl.handle.net/11681/5714Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | United States. Office of Ordnance Research | - |
| dc.contributor | Calspan Corporation | - |
| dc.contributor.author | Jiusto, James E. | - |
| dc.contributor.author | Rodgers, R. R. | - |
| dc.date.accessioned | 2016-03-21T16:46:22Z | - |
| dc.date.available | 2016-03-21T16:46:22Z | - |
| dc.date.issued | 1961-08 | - |
| dc.identifier.uri | http://hdl.handle.net/11681/5714 | - |
| dc.description | Technical Report | - |
| dc.description | Summary: A 2-month experimental program was conducted in Greenland to determine the extent to which arctic whiteouts and low clouds could be modified using cloud dissipation techniques. Seven seeding agents, applicable to supercooled or warmer-than-freezing clouds, were tried employing aircraft, tethered blimp-balloon, and rocket delivery. Successful dissipation of supercooled clouds was achieved with dry ice. As little as 5 lb of dry ice per mile, dispersed from aircraft, produced efficient clearing action and line openings up to 2. 5 miles wide. An inexpensive seeding scheme, involving a tethered blimp-balloon and open baskets of dry ice attached at intervals along the tether line, was shown to be capable of opening holes in low cloud overcasts. Such a technique appears feasible for maintaining safe landing corridors at ice-cap air strips during fog and low stratus conditions. Seeding materials that were ineffective in dissipating the supercooled clouds or warmer-than-freezing clouds encountered were liquid carbon dioxide, Greenland soil particles, silver iodide, carbon black, calcium chloride, and sodium chloride. Cloud hydrometeor and atmospheric nuclei measurements were made in relation to the modification tests. Specialized seeding equipment for specific arctic operations are recommended. | - |
| dc.publisher | Cold Regions Research and Engineering Laboratory (U.S.) | - |
| dc.publisher | Engineer Research and Development Center (U.S.) | - |
| dc.relation | http://acwc.sdp.sirsi.net/client/en_US/search/asset/1015320 | - |
| dc.relation.ispartofseries | Technical report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 84. | - |
| dc.rights | Approved for public release; distribution is unlimited. | - |
| dc.source | This Digital Resource was created from scans of the Print Resource | - |
| dc.subject | Snow | - |
| dc.subject | Clouds | - |
| dc.subject | Whiteout | - |
| dc.subject | Weather modification | - |
| dc.subject | Cloud seeding | - |
| dc.subject | Dry ice | - |
| dc.subject | Nucleating agents | - |
| dc.title | Experiments on Greenland whiteout modification, 1960 | - |
| dc.type | Report | en_US |
| Appears in Collections: | Technical Report | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CRREL-Technical-Report-84.pdf | 17.78 MB | Adobe PDF |  View/Open |