GNSS Meteorology and Climatology

Dear Colleagues,

Sensing of the neutral atmosphere with space-based geodetic techniques is now a well-established field of research and application, primarily thanks to the ever-increasing availability of data from ground-based GNSS networks. GNSSs have not only revolutionized positioning, navigation, and timing, but have also evolved into a robust meteorological system capable of accurately observing the Global Climate Observing System (GCOS) Priority 1 Essential Climate Variable (ECV), atmospheric water vapor. Water vapor is the most abundant greenhouse gas, and is currently under-sampled in meteorological and climate observing systems. As such, obtaining and exploiting additional high-quality humidity observations from GNSS and other geodetic remote sensing techniques is essential to improve weather forecasting and climate monitoring.

This Special Issue welcomes, but is not limited to, contributions on the following topics:

• Estimates of the neutral atmospheric state derived from ground-based and space-based geodetic techniques and their application in weather forecasting and climate monitoring.
• Assessment of real-time tropospheric products for nowcasting and weather forecasting;
• Analysis of tropospheric parameters derived from low-cost GNSS equipment;
• Production and application of advanced tropospheric products (multi-GNSS, real-time, gradients, slant delays, tomography);
• Assessment of reprocessed high-quality tropospheric products for climate monitoring;
• Multi-instrument retrievals and inter-comparisons of tropospheric parameters;
• Analysis of tropospheric parameters derived from low-cost GNSS equipment;
• Production of SAR-based tropospheric parameters and their application to meteorology;
• Usage of NWP data as an input to GNSS data processing;
• GNSS-reflectometry for soil moisture and snow depth observations.

Dr. Jonathan Jones
Guest Editor

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