Interactive comment on “Azimuthal asymmetry in ground-based GPS slant delay observations and their NWP model counterparts” by R. Eresmaa et al

J5.3 3DVAR Retrieval of 3D Moisture Field from Slant-path Water Vapor Observations of a High-resolution Hypothetical GPS Network

*It is very important to accurately characterize the three-dimensional distribution of water vapor in the atmosphere for the understanding and prediction of mesoscale and storm-scale weather, especially with regard to quantitative precipitation forecasting (Emanuel et al. 1995). Skills in these predictions have been improved rather slowly owing to the high spatial and temporal variability of wa...

Recent Ground Based GPS Meteorology Developments for SuomiNet

Over the past 10 years significant progress has been made in atmospheric sensing with GPS. Both spacebased atmospheric sounding and ground-based measurements of integrated delay due to the troposphere have shown promise for meteorological applications. Now the focus is shifting from developing and validating the sensing technology towards applying it to weather forecasting. This paper will focu...

Determination of Vertical Refractivity Structure from Ground-based GPS Observations

The primary scientific objective of this research is to develop GPS sounding techniques for ground based atmospheric refractivity sensing. Atmospheric profiling with GPS from space has been demonstrated (e.g. Rocken et al., 1997). Ground based receivers have been used to determine integrated atmospheric water vapor above a site, but profiling techniques with ground-based GPS observations are st...

Estimation and Analysis of Precipitable Water Vapor Using GPS Data and Satellite Altimeter

Determination of water vapor in the atmosphere plays an important role in forecasting weather conditions and precipitation studies. For this reason, it is very important to study the tropospheric delay, especially the wet component, which is due to the presence of water vapor in the atmosphere. In this paper, the amount of water vapor was estimated by altimeter satellite radiometer and GPS data...

Interactive comment on “Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations” by C. Vigouroux et al