摘要
To exploit cloud water resources to increase precipitation on the ground effectively,according to the principles of artificial precipitation enhancement,based on historical data of weather and precipitation from Fuxin National Basic Meteorological Stations from 1981 to 2010,the distribution characteristics of cloud water resources,potential and countermeasures of artificial precipitation enhancement in Fuxin region of Liaoning Province were studied. The results show that the annual average quantity of cloud water resources in the air over Fuxin region over the past 30 years was 285. 6 × 10~8m^3,but the annual average precipitation was only 471.8 mm( amounting to 47.2 ×10~8m^3 of water resources),accounting for only16. 5% of total quantity of cloud water resources in the air; 12 times of artificial precipitation enhancement operation experiments were carried out by using the weather models and technical indicators suitable for artificial precipitation enhancement in Fuxin region,and the artificial precipitation efficiency was 18. 3% on average,5. 2% higher than before,and the annual average precipitation could increase by 2. 5 × 10~8m^3 approximately. All of these have great significance for implementing artificial precipitation enhancement operation scientifically and effectively,maximizing the exploitation of cloud water resources in the air,increasing total quantity of water resources,and mitigating drought in Fuxin region.
To exploit cloud water resources to increase precipitation on the ground effectively,according to the principles of artificial precipitation enhancement,based on historical data of weather and precipitation from Fuxin National Basic Meteorological Stations from 1981 to 2010,the distribution characteristics of cloud water resources,potential and countermeasures of artificial precipitation enhancement in Fuxin region of Liaoning Province were studied. The results show that the annual average quantity of cloud water resources in the air over Fuxin region over the past 30 years was 285. 6 × 10~8m^3,but the annual average precipitation was only 471.8 mm( amounting to 47.2 ×10~8m^3 of water resources),accounting for only16. 5% of total quantity of cloud water resources in the air; 12 times of artificial precipitation enhancement operation experiments were carried out by using the weather models and technical indicators suitable for artificial precipitation enhancement in Fuxin region,and the artificial precipitation efficiency was 18. 3% on average,5. 2% higher than before,and the annual average precipitation could increase by 2. 5 × 10~8m^3 approximately. All of these have great significance for implementing artificial precipitation enhancement operation scientifically and effectively,maximizing the exploitation of cloud water resources in the air,increasing total quantity of water resources,and mitigating drought in Fuxin region.
基金
Supported by Science and Technology Planning Project for social development in Fuxin City of Liaoning Province(20151305)
