利用地基GPS测定沙尘暴的含沙量

Observation of atmospheric sand content with GPS technology

准确掌握地球大气中沙尘的分布,了解沙尘移动趋势对天气现象、气候变化、数值预报有重要的理论研究及实用价值。本文详细地论述了利用地基GPS方法观测大气中沙尘含量的原理。论述了在地基GPS技术中观测站遥测大气中沙尘含量的理论基础,建立了利用GPS观测数据计算大气层沙尘含量的理论模型,导出了相应的计算公式。

Accurately grasp the distribution of dust in the Earth＇s atmosphere, and understanding the moving trend of the sand and dust is an important theoretical research and practical value to the phenomenon of weather, climate change and numerical prediction. This article discusses the principle of detecting the atmospheric dust content using the ground GPS in detail. Introduces the theoretical foundation which the stations telemeter the dust content in the GPS technology, and establishes the theoretical model of the atmospheric dust content by using GPS observation data, finally, derives the corresponding calculating formula.