Determination of Radiosonde Station Elevation from Observational Data with Significant Level Record
Radiosonde station elevation is important in quality control and correct using the radiosonde data. Station elevation is not transmitted with the sounding, and radiosonde metadata from almost all sources contain erroneous information. This paper proposed a method to determine radiosonde station elevation from observational data with significant level records. This method could improve the accuracy of calculated elevations, and is free from the influence of weather and climate conditions. Its effect is evaluated with data at 110 radiosonde stations of China in 2008. The result shows that the involvement of records on significant levels improves the accuracy of calculated elevations, especially for stations in Tibetan Plateau. This method decreases the difference between the calculated elevation and true elevation below 11 m, while without significant level records the difference could be as large as 20～40 m in certain months. Besides, the time and scale of station elevation changes can be detected with accuracy by analyzing the time series of calculated elevations.
Tibetan PlateauSignificant levelRadiosonde station elevation
NETL
NSTL
万方数据
维普
