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Salt seeding from air craft over Linganamakki catchment, South India

Murty, ASR and Selvam, AM and Kulkarni, CP and Chatterjee, RN and Ramanamurty, BhV (1981) Salt seeding from air craft over Linganamakki catchment, South India. Journal of Weather Modification, 13. pp. 167-173.

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Acute power shortages because of weak monsoonsin the summersof 1973, 1974, and 1975 led to several cloud seeding operations over hydroelectric catchments throughout India. One of these involved salt seeding of warm cumulus clouds from aircraft over the Linganamakki catchment in southwest India during the summerof 1975, at the request of the Karnataka State Government. Operational details have been given by the Karnataka State Electricity Board (KSEB, 1975). Rainfall measured in the target area and in adjacent control areas (Fig. 1) is used for the present evaluation. The project was similar to that conducted in the preceding two years 1300 km to the northeast over the catchment of Rihand reservoir (24 v 12’N, 83 03’ E, 310 m MSL) in the extreme southeast corner of Uttar Pradesh, south of Varanasi (Banaras). A limited number of raingauges in and around the catchment indicated increases on seeded days of 17 to 28 percent, which was not statistically significant (Kapoor eta., 1976). Despite the strong chance of similar inconclusive results from a non-randomized operational project, the Karnataka authorities requested an operational project, to alleviate a critical water shortage.

Item Type: Article
Additional Information: Copyright of this article belongs to Journal of Weather Modification
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 11 Jun 2016 05:25
Last Modified: 11 Jun 2016 05:25

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