Remote sensing and characterizations of temporal and spatial variations in the wet refractivity and the wet delay

Author

Jarlemark, Per O J ; Elgered, Gunnar ; Johansson, Jan M.

Author_Institution

Onsala Space Obs., Chalmers Univ. of Technol., Goteborg, Sweden

Volume

3

fYear

34881

fDate

10-14 Jul1995

Firstpage

2129

Abstract

The authors have investigated the agreement between the zenith wet delay values derived from radiometer data and GPS data and found an root-mean-square (RMS) difference of 9 mm between them. During most of the periods when the radiometer observed distinct wet delay gradients no gradients were found in the Global Positioning System (GPS) data. There were, however, periods where also horizontal gradients were in good agreement

Keywords

atmospheric humidity; atmospheric techniques; meteorology; microwave measurement; microwave propagation; millimetre wave measurement; radiometry; remote sensing; tropospheric electromagnetic wave propagation; GPS; atmosphere; humidity; measurement technique; meteorology; microwave radiometry; radiowave delay; radiowave propagation; remote sensing; spatial variation; temporal variation; water content; wet delay gradient; wet refractivity; zenith wet delay; Atmosphere; Brightness; Delay; Global Positioning System; Microwave radiometry; Observatories; Refractive index; Remote sensing; Satellite broadcasting; Space technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International

Conference_Location

Firenze

Print_ISBN

0-7803-2567-2

Type

conf

DOI

10.1109/IGARSS.1995.524127

Filename

524127