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논문 기본 정보

자료유형
학술저널
저자정보
정은실 (경북대학교)
저널정보
한국수처리학회 한국수처리학회지 한국수처리학회지 제30권 제6호
발행연도
2022.12
수록면
75 - 83 (9page)

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초록· 키워드

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Climate changes directly link to water shortages in many countries, and a cloud seeding experiment has been proposed as a way to alleviate water shortage and severe air pollution problems. In Korea, ground-based snow enhancement experiments have been conducted at the cloud physics observation site (CPOS) of the Daegwallyeong area in Gangwon province since 2006. In this study, we analyzed 102 seeding experiments conducted from 2006 to 2015 to find the optimal conditions for silver iodide (AgI) seeding to increase snow amount. The results showed that snow increased due to the AgI seeding if the surface temperature was lower than -4°C and the liquid water was sufficient in the clouds. Of the 102 snow enhancement experiments performed over the past 10 years, only 20 cases met one of these conditions. The optimal conditions found are expected to help secure water resources by increasing the success rate of future AgI cloud seeding experiments. During the experiments, 25 to 113 g of AgI was used in each experiment, indicating that the amount of AgI was sprayed into clouds and eventually fell to the ground as rain, further lakes, and groundwater contained AgI. Although there is controversy over the harmfulness of AgI used in cloud seeding experiments, AgI is known to have no harmful effects either experimentally or environmentally. The study further showed that the increase in snow depth decreased as the amount of AgI seeding material increased, just as precipitation decreased as atmospheric PM10 increased.

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