Author: Thomas J. Henderson
Publisher:
ISBN:
Category : Rain-making
Languages : en
Pages : 54
Book Description
Weather Modification on the Bishop Creek Watershed
Cloud Seeding Operations in the Bishop Creek, California Watershed
Author: Ferguson Hall
Publisher:
ISBN:
Category : Precipitation (Meteorology)
Languages : en
Pages : 40
Book Description
Cloud seeding operations using dry ice dispensed from aircraft have been carried out by the California Electric Power Co. in the High Sierra near Bishop, Calif., since February 1948. Limited visual observations suggest that snow showers can be produced from non-precipitating orographic clouds by seeding, the snow reaching the ground at the higher elevations. Comparison of the annual runoff from the seeded watershed with that from adjacent areas for the 3 years 1948, 1949, and 1950 showed a positive departure in the 1948-49 season significant at the 1 percent level. Significant departures did not appear during the other two years, but the average for the 3 years was significant at the 5 percent level. From the same analysis it might be estimated that the average annual flow during the 3-year period was augmented by 9 percent, with 90 percent confidence limits being zero and 18 percent. On the other hand the unusual circulation prevailing during the 1948-49 winter may have been responsible, at least in part, for the departure in flow during the season. Snow pack comparison did not indicate a significant increase in the Bishop area, but it is shown that such a result is not incompatible with the possibility that additional precipitation was produced which was not reflected in the snow surveys.
Publisher:
ISBN:
Category : Precipitation (Meteorology)
Languages : en
Pages : 40
Book Description
Cloud seeding operations using dry ice dispensed from aircraft have been carried out by the California Electric Power Co. in the High Sierra near Bishop, Calif., since February 1948. Limited visual observations suggest that snow showers can be produced from non-precipitating orographic clouds by seeding, the snow reaching the ground at the higher elevations. Comparison of the annual runoff from the seeded watershed with that from adjacent areas for the 3 years 1948, 1949, and 1950 showed a positive departure in the 1948-49 season significant at the 1 percent level. Significant departures did not appear during the other two years, but the average for the 3 years was significant at the 5 percent level. From the same analysis it might be estimated that the average annual flow during the 3-year period was augmented by 9 percent, with 90 percent confidence limits being zero and 18 percent. On the other hand the unusual circulation prevailing during the 1948-49 winter may have been responsible, at least in part, for the departure in flow during the season. Snow pack comparison did not indicate a significant increase in the Bishop area, but it is shown that such a result is not incompatible with the possibility that additional precipitation was produced which was not reflected in the snow surveys.
Final Report of the Advisory Committee on Weather Control
Author: United States. Advisory Committee on Weather Control
Publisher:
ISBN:
Category : Rain-making
Languages : en
Pages : 498
Book Description
Publisher:
ISBN:
Category : Rain-making
Languages : en
Pages : 498
Book Description
Final Report of the Advisory Committee on Weather Control
Author:
Publisher:
ISBN:
Category : Rain-making
Languages : en
Pages : 438
Book Description
Publisher:
ISBN:
Category : Rain-making
Languages : en
Pages : 438
Book Description
Weather Modification
Author: United States. Weather Bureau
Publisher:
ISBN:
Category : Rain-making
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category : Rain-making
Languages : en
Pages : 64
Book Description
The Journal of Weather Modification
Author:
Publisher:
ISBN:
Category : Weather control
Languages : en
Pages : 166
Book Description
Publisher:
ISBN:
Category : Weather control
Languages : en
Pages : 166
Book Description
Technical Report - Advisory Committee on Weather Control
Author: United States. Advisory Committee on Weather Control
Publisher:
ISBN:
Category : Weather control
Languages : en
Pages : 614
Book Description
Publisher:
ISBN:
Category : Weather control
Languages : en
Pages : 614
Book Description
Final Report
Author: United States. Advisory Committee on Weather Control
Publisher:
ISBN:
Category : Weather control
Languages : en
Pages : 496
Book Description
Publisher:
ISBN:
Category : Weather control
Languages : en
Pages : 496
Book Description
Report on Weather Modification Operations in California, July 1952-June 1956
Author: California. Department of Water Resources. Division of Resources Planning
Publisher:
ISBN:
Category : Rain and rainfall
Languages : en
Pages : 74
Book Description
Publisher:
ISBN:
Category : Rain and rainfall
Languages : en
Pages : 74
Book Description
Weather and Climate Modification
Author: Donald Lawrence Gilman
Publisher:
ISBN:
Category : Weather control
Languages : en
Pages : 52
Book Description
Publisher:
ISBN:
Category : Weather control
Languages : en
Pages : 52
Book Description