Please find below the
-A focus on the modeling and collection of reliable data to feed into the model are critical in guiding this research. It would be good to give enough time and weight for the model development.
-This proposal should have been combined with the other proposal on the effect of salt powder seeding by Arwa Alshareif. My comment was considered in extending the pitch. However, it still lacks the details on how the work will be carried out exactly.
The focus of this proposal is on the materials science research side of rain enhancement. It touches on a very important aspect of seeding, that is material size optimization. In such focus, the understanding of the seeding process on the particle level is critically important. Depending on the time frame of the project, there is a wide spectrum of research focuses within the seeding material area of research. For a systematic approach towards an objective research, one would first look at the important parameters in the particle design, such as shape, chemistry, surface morphology and size. It would be useful to do a quick comparison between these parameters and find out the most important between them or an optimized combination of all.
The idea presented here is not unheard of. There are several attempts to figure out the appropriate materials and particle sizes for cloud seeding. However, there is something unique to this region. The aerosol distribution in this region is significantly high compared to other regions largely due to dust loading in the atmosphere. Any attempt to seed should adequately account for this. So, the choice of particle size should be adaptive to the conditions at the time of seeding. To give an example cloud seeding can potentially increase precipitation by 30-35% in clear atmospheres and only by 10-15% in turbid atmospheres. (See https://www.wateronline.com/doc/uae-s-rain-enhancement-program-addresses-key-technical-challenges-0001 ) Please include a study covering these topics while submitting the full proposal.
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