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International Association of Geodesy

COMMISSION 4: Positioning & Applications

Sub-Commission 4.3: GNSS Measurement of the Atmosphere

Working Group 4.3.3: NWP for Positioning


IAG WG 4.3.3. NWP for positioning

A Joint Working Group with IAG Sub-Commissions 4.3 and 4.5.

Terms of Reference:

To study various technical aspects of using Numerical Weather Prediction (NWP) model data to map the effect of troposphere on space geodetic signals. To concatenate the terminology used by both meteorological and geodetic communities. To test and sediment procedures related to ray-tracing through NWP data layers. To suggest quality control criteria to be used for assessing the quality of tropospheric data and results obtained from them. To evaluate state of the art and to report on the progress achieved so far and for the next two years on the use of NWP for positioning.

List of members