The New Tropospheric Product of the International GNSS Service

We compare this new approach for generating the IGS tropospheric products with the previous approach, which was based on explicit combination of total zenith delay contributions from the IGS ACs. The new approach enables the IGS to rapidly generate highly accurate and highly reliable total zenith delay time series for many hundreds of sites, thus increasing the utility of the products to weather modelers, climatologists, and GPS analysts. In this paper we describe this new method, and discuss issues of accuracy, quality control, utility of the new products and assess its benefits.

[1]  A. E. Niell,et al.  Preliminary evaluation of atmospheric mapping functions based on numerical weather models , 2001 .

[2]  Y. Bar-Sever,et al.  Estimating horizontal gradients of tropospheric path delay with a single GPS receiver , 1998 .

[3]  Soroosh Sorooshian,et al.  SuomiNet: A Real-Time National GPS Network for Atmospheric Research and Education. , 2000 .

[4]  C. Alber,et al.  Pointed water vapor radiometer corrections for accurate global positioning system surveying , 1993 .

[5]  Christian Rocken,et al.  Near real‐time GPS sensing of atmospheric water vapor , 1997 .

[6]  A. Niell.  Global mapping functions for the atmosphere delay at radio wavelengths , 1996 .

[7]  J. Zumberge,et al.  Precise point positioning for the efficient and robust analysis of GPS data from large networks , 1997 .

[8]  Christian Rocken,et al.  GPS surveying with 1 mm precision using corrections for atmospheric slant path delay , 1997 .

[9]  Steven Businger,et al.  The Promise of GPS in Atmospheric Monitoring , 1996 .

[10]  T. Herring,et al.  GPS Meteorology: Remote Sensing of Atmospheric Water Vapor Using the Global Positioning System , 1992 .

[11]  Christian Rocken,et al.  Sensing integrated water vapor along GPS ray paths , 1997 .

[12]  Y. Bar-Sever,et al.  One-Centimeter Orbit Determination for Jason-1: New GPS-Based Strategies , 2004 .

[13]  A. E. Niell,et al.  Improved atmospheric mapping functions for VLBI and GPS , 2000 .

[14]  Steven Businger,et al.  Sensing atmospheric water vapor with the global positioning system , 1993 .

[15]  Christian Rocken,et al.  GPS/STORM—GPS Sensing of Atmospheric Water Vapor for Meteorology , 1995 .

[16]  Steven Businger,et al.  GPS Meteorology: Mapping Zenith Wet Delays onto Precipitable Water , 1994 .