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THE METEOROLOGICAL USAGE OF WATER VAPOR DATA OBTAINED FROM GPS
(INT SCIENTIFIC CONFERENCE SGEM, 2009) Yildiz, F.; Yilmaz, Seyit Ali
The data obtained from Constant GBS (SOBS) networks which arc established generally for the aim of geodesic, geodynamic and navigation studies also contribute to the meteorological studies. In this study, hourly temperature and pressure values measured by present meteorological sensors in SGPS stations as well as water vapor values (PWV) that can be converted into rain by taking the advantage of GPS observations will be calculated for Middle Anatolian Region. The values of GPS_IPWV obtained as a result of calculation will be confirmed with the radiosonde data and will also be compared with MM5 weather forecast model results used in State Meteorological Service (DMI). This study, which covers Middle Anatolian Region, will be carried out by using the data belonging to two radiosonde stations of DMI that are present in Ankara and Isparta. In this study, the consistence between PWV values calculated from GPS values and PWV values obtained from MM5 model and radiosonde will be examined. It is evaluated with this preliminary study that the GPS meteorology studies which has been just present in Turkey will be more economical and meaningful from the point of both geodesy-geophysicist and meteorologists to use present station data of DMI instead of establishing a meteorology sensor in every SOPS station in order to use for GPS calculations.