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THE METEOROLOGICAL USAGE OF WATER VAPOR DATA OBTAINED FROM GPS
Abstract
The data obtained from Constant GBS (SGBS) networks which are 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 SGPS station in order to use for GPS calculations.
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References4
Anthes, R.A. (1983): Regional Models of Monthly Weather Review.,111, 1306-1335. Bai,Z., Y.Feng (2003): Gps Water Vapor Estim Meteorological Data From Australian Autom Vol.2, No 2:83-89. Bevis,M., S.Businger, T.A.Herring, C.Rocke Metetorology: Remote Sensing Of Atmosp Positioning System. Journal Of Geoph.Res. Vo ictions . For example, these equipments are used and daily launching (once or twice a day) diosonde technique is inadequate to define the water vapor. Therefore, these restrictions form
-24 hours) weather forecast in the analysis of Vapor Radiometers located on the ground and lighting produced by atmospheric water vapor vels for a certain line. In addition to this, it can d water level. . In fact, Water vapor radiometer emperature in two or more frequency. Though ffected by light or medium density cloud, they rainy weather In this article it is aimed to n Turkey though it has been used abroad for 4- apor This new approach which is the usage of S that has been used for along time especially ke up control web and define the earthquake s of The Atmosphere in Middle Latitudes,
5. Estimation Using Interpolated Surface Automatic Weather Stations. Journal Of Gps,
Rocken, R.A.Anthes, R.H.Ware (1992): Gps mospheric Water Vapor Using The Global es. Vol.97, No. D14, Pp. 15787-15801.
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