Charged Particle (Negative Ion)-Based Cloud Seeding and Rain Enhancement Trial Design and Implementation

Abstract

China has been suffering from water shortage for a long time. Weather modification and rainfall enhancement via cloud seeding has been proved to be effective to alleviate the problem. Current cloud seeding methods mostly rely on solid carbon dioxide and chemicals such as silver iodide and hygroscopic salts, which may have negative impacts on the environment and are expensive to operate. Lab experiments have proved the efficiency of ion-based cloud seeding compared with traditional methods. Moreover, it is also more environmentally friendly and more economical to operate at a large scale. Thus, it is necessary to carry out a field experiment to further investigate the characteristics and feasibility of the method. This paper provides the design and implementation of the ion-based cloud seeding and rain enhancement trial currently running in Northwest China. It introduces the basic principle of the trial and the devices developed for it, as well as the installation of the bases and the evaluation method design for the trial.

Evaluation of the First Negative Ion-Based Cloud Seeding and Rain Enhancement Trial in China

“…The roof structure itself is strong enough to resist the strong wind on the top of the mountain. The board structure is reinforced for better stability [22]. Our panels are windward to help with the diffusion of negative ions.…”

“…To better evaluate the actual effect of cloud seeding, meteorological monitoring instrument networks were designed and constructed in both experimental areas to provide a higher temporal and spatial resolution of the precipitation and other meteorological characteristics. Previous studies based on historical meteorological data indicated the dominant wind direction of the experimental area [22]. It is assumed that the charged particles spread with the airflow.…”

“…Various cloud seeding attempts have been carrying out to increase precipitation and mitigate the projected future reduction in China [21]. New technique to cloud seeding in China, coupling research in ion-based cloud seeding performance inland, led to the first negative ion-based cloud seeding and rain enhancement in China [22].…”

Anion-based Weather Modification Technology to Reduce Food and Forest Fire Risks (Karhutla) during Covid-19 Pandemic

“…Makalah ini memberikan desain dan implementasi dari penyemaian awan berbasis anion dan uji coba peningkatan hujan yang saat ini sedang dilakukan pada wilayah China Barat Laut. Ini memperkenalkan prinsip dasar uji coba dan perangkat yang dikembangkan untuknya, serta pemasangan peralatan dan desain metode evaluasi untuk uji coba (Zheng et. al., 2020).…”

“…TMC Anion, sudah saatnya untuk bisa dilakukan di Indonesia, guna mengantisipasi asap Karhutla yang bisa dimodifikasi menjadi CCN dan bisa terbentuk awan dan hujan, sekaligus mendukung pertanian hingga tingkat pedesaan. Bahkan China, sudah melakukan uji-coba lapangan di wilayah Barat-Laut (Zheng, 2020…”