A feasibility study on exploitation of atmospheric water resources using cloud seeding in arid and semi arid parts of Iran

S. Poormohammadi
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Abstract

Water resource management and optimum use of all available water resources are ways for the adaptation of climate change and drought conditions.Weather modification, commonly known as cloud seeding, is the application of scientific technology that can enhance a cloud's ability to produce precipitation. Cloud seeding projects have being performed in Iran since 1999, as one of the most important strategies to increase water supplies. However, determining the time and place of cloud seeding operation are the basic necessities to achieve the best possible results. This paper explains innovative and scientific methods of feasibility study of Tehran province (semi-arid area) and Hormozgan province (arid area) by meteorological stations data, upper air data, satellite imagery (TRMM), weather radars products, topographic and vegetation maps. Factor analysis and World Meteorological Organization classification methods of PEP were applied to determine proper seeding time. Eventually, cloud seeding susceptible areas were classified as levels and altitudes. In Tehran province, the results showed that the northwest, west and central catchments are capable for cloud seeding operation in December, January, February and March at an altitude of 2500-3000 meters. Suitable months of cloud seeding operation in the north and northwest of the catchment of Hormozgan province were January, February and March, in order of priority.
利用播云技术开发伊朗干旱半干旱地区大气水资源的可行性研究
水资源管理和所有可用水资源的最佳利用是适应气候变化和干旱条件的途径。人工影响天气,通常被称为播云,是一种科学技术的应用,可以增强云产生降水的能力。自1999年以来,伊朗一直在实施人工降雨项目,作为增加供水的最重要战略之一。然而,确定播云作业的时间和地点是达到最佳效果的基本必要条件。本文阐述了利用气象站数据、高空数据、卫星图像(TRMM)、气象雷达产品、地形图和植被图对德黑兰省(半干旱区)和霍尔木兹干省(干旱区)进行可行性研究的创新和科学方法。采用因子分析和世界气象组织PEP分类方法确定适宜的播种时间。最终,云播易感区域被划分为不同的水平和高度。在德黑兰省,结果表明西北、西部和中部集水区在12月、1月、2月和3月在海拔2500-3000米可进行播云作业。霍尔木兹甘省集水区北部和西北部的播云适宜月份依次为1月、2月和3月。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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