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India's Cloud Seeding Trials 'Costly Spectacle'
IIT Delhi's decade-long study shows winter's dry, polluted conditions limit cloud seeding effectiveness despite trials with IIT Kanpur in Delhi-NCR areas.
- IIT Delhi's Centre for Atmospheric Sciences authored the study using 2011-2021 data and finds Delhi-National Capital Region's winter atmosphere unsuitable for consistent cloud seeding.
- Decadal analysis shows December and January are driest with severe pollution, Western Disturbances are rare and infrequent, and Total Column Water Vapour falls, worsening dryness.
- Researchers calculated only 92 viable winter seeding days in ten years, noting vertical separation between an aerosol layer below 2 km and seedable cloud layers at 2-5 km creates targeting challenges.
- The study warned cloud seeding cannot be a primary strategy due to high operational costs and scientific uncertainties, with at best a high-cost, emergency short-term role given heavy rain's 80-95% washout and 1-5 days rebound.
- Recent trials in Delhi-NCR by the Delhi government and IIT Kanpur produced no rain, and the report urges sustained emission cuts as the best solution to pollution.
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India's cloud seeding trials 'costly spectacle'
India's efforts to combat air pollution by using cloud seeding in its sprawling capital New Delhi appear to have fallen flat, with scientists and activists questioning the effectiveness of the move.
·Missoula, United States
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Delhi's air quality slips into very poor category, govt intensifies winter action plan to tackle pollution
Air quality in Delhi has slipped into the ‘very poor’ category on Saturday. This comes amid IIT-Delhi releasing a study that says artificial rain is not possible in Delhi during the winter months due to low atmospheric moisture.
·New Delhi, India
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Delhi's Winter Atmosphere Unsuitable For Cloud Seeding: Report
Delhi's winter atmosphere is climatologically unsuitable for consistent cloud seeding due to a fundamental lack of sufficient moisture and saturation, particularly during the peak pollution months of December and January, according to a report
·New Delhi, India
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Total News Sources57
Leaning Left3Leaning Right14Center14Last UpdatedBias Distribution45% Center, 45% Right
Bias Distribution
- 45% of the sources are Center, 45% of the sources lean Right
45% Right
C 45%
R 45%
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