Ground-based Gps Technique Can Inverse Atmospheric Precipitation Research

Weather conditions is an important concern in people’s lives, and the water vapor plays an important role in the changes in the weather, so water vapor has been an important subject of meteorology and space science research, as of now there are many methods and techniques to detect water vapor, but These conventional techniques and methods, there are many inadequacies, which not only affect people’s understanding of water vapor and meteorology law, but also the technology itself is the bottleneck. Because of interference from water vapor in the GPS signal propagation errors to improve GPS positioning accuracy to enable people to strengthen the in-depth study of water vapor, the maturing of these studies has also produced a new air vapor detection technology, GPS detection water vapor technology, in support of these technologies, a new interdisciplinary GPS meteorology generated based on GPS location can be divided into a ground-based GPS meteorology and space-based GPS meteorology, ground-based GPS meteorology to a high-precision, low cost, all-weather, without correction, and can take into account other aspects of the characteristics of a variety of applications is rapidly becoming a hot topic of current research.Data processing of the papers used GAMIT high precision GPS processing software, be calculated by the tropospheric zenith delay and auxiliary ground meteorological data to study the water vapor content, compared with other commonly used monitoring techniques, GPS monitoring technology than conventional technologies a lot of advantages to analyze the cause of the error of GPS monitoring technology and then identify methods to improve the accuracy of the results. While taking advantage of the Gannan region in mid-June2010, the regional GPS network data and automated weather station observations and the results were analyzed solver, solver to come to the accuracy of GPS to detect water vapor is1.58mm, and synchronous observation radiosonde data comparison of both accuracy and compare also found a high correlation with the satellite monitoring. Continuity and timeliness of the GPS observations is difficult to achieve by other methods, but a short distance from the GPS detection networks have the ability to detect small and medium-scale meteorological conditions, we can see the use of GPS to detect water vapor in future meteorological production applications will be very great potential.This paper introduces the adopted GAMIT data processing software solution operator tropospheric zenith total delay of the process, introduces understand operator tropospheric zenith total delay with the solution operator precision positioning data of different, a different solution counted purpose and software different parameter settings. Many weak places in the inversion of the entire water vapor, tropospheric zenith total delay to the the solver air water vapor content of the data is not mature software, manual calculation would adversely affect the timeliness of the forecast, and inefficient error-prone, the according to the needs of meteorological services, the paper prepared by GAMIT solver results to air water vapor content of the software to automatically read from the file of the Q-file to calculate the required data, and calculate the water vapor content, and timing diagram of the water vapor content and many other features. Prepared by the software, although there are many areas for improvement, but in the process of inversion water vapor can significantly improve the calculation speed of the entire process.