长三角区域对流层延迟简易模型的建立

摘要

A simple model of the tropospheric zenith-delay is established in this paper, which is based on the Saastamoinen model and EC-NOS model. The model is researched through the meteorological data of the Yangtze River delta region during the last 40 years. The input parameter of new model is day of year, which not only is convenient, but also the accuracy of the empirical model is improved. It provides a reference for more accurate region- al model. The experiments verify the validity of the model.%在对流层经验模型Saastamoinen模型和EGNOS模型的基础上，通过对长三角地区近40年气象规律的研究，总结了温度、气压、相对湿度相对于年积日的函数关系，建立了适用于长三角区域的对流层天顶延迟的简易模型。通过实验验证了该模型的有效性，该模型输入参数是年积日，不仅方便快捷，还提高了经验模型的精度，为更精确的区域模型研究提供了参考。