GNSS-based tropospheric delays estimated operationally in real-time by the Royal Observatory of Belgium (ROB) - Solar-Terrestrial Centre of Excellence (STCE) in the framework of its participation to the COST Action ES1206 GNSS4SWEC and the IAG WG 4.3.7 "Real-time GNSS Troposphere Monitoring". These tropospheric delays are computed in real-time from a world-wide network of GNSS stations which focuses on the BENELUX and the U.K. Estimates have a time resolution of 30 seconds and aim to support nowcasting applications in that area.

GNSS-based tropospheric delays estimated operationally in quasi real-time by the Royal Observatory of Belgium (ROB) - Solar-Terrestrial Centre of Excellence (STCE) in the framework of his participation to the EUMETNET EIG GNSS water VApor Program (E-GVAP). These tropospheric delays are computed every 15 minutes from a network of GNSS stations focused on the BENELUX and the U.K. Estimates have a time resolution of 15 minutes and aim to support nowcasting application in that area.

GNSS-based tropospheric delays estimated operationally in near real-time by the Royal Observatory of Belgium (ROB) - Solar-Terrestrial Centre of Excellence (STCE) in the framework of his participation to the EUMETNET EIG GNSS water VApor Program (E-GVAP). These tropospheric delays are computed every 1 hour from a pan-European network of GNSS stations with a time resolution of 15 min to support national and European NWP models.

GNSS-based tropospheric delays models, grids, and maps computed operationally by the Royal Observatory of Belgium (ROB) - Solar-Terrestrial Centre of Excellence (STCE) from the quasi real-time tropospheric delay estimated in the context of his participation to the EUMETNET EIG GNSS water VApor Program (E-GVAP). These tropospheric delay maps are generated according to the characteristics of the quasi real-time ROB contribution to E-GVAP (i.e. the models, grids, and maps corresponding to the ROBQ contribution focus on the BENELUX and U.K., are updated every 15 min and have a time resolution of 15 min). The spatial resolution of these models, grids, and images is 0.1° x 0.1°. In parrallel, high spatial resolution (0.05° x 0.05°) models, grids, and maps over Belgium and its surrounding are also generated.

GNSS-based tropospheric delays models, grids, and maps computed operationally by the Royal Observatory of Belgium (ROB) - Solar-Terrestrial Centre of Excellence (STCE) from the near real-time tropospheric delay estimated in the context of his participation to the EUMETNET EIG GNSS water VApor Program (E-GVAP). These tropospheric delay maps are generated according to the characteristics of the ROB contributions to E-GVAP (e.g. the models, grids, and maps corresponding to the ROBH contribution focus on Europe, are updated hourly and have a time frequency of 15 min). The spatial resolution of the models, grids and images is 0.1° x 0.1°. In parrallel, high spatial resolution models, grids, and maps over Belgium and its surrounding are also generated.

GNSS-based final tropospheric delays models, grids, and maps produced operationally by the Royal Observatory of Belgium (ROB) - Solar-Terrestrial Centre of Excellence (STCE) from the final (daily) tropospheric delay estimated in the context of his participation to the EUMETNET EIG GNSS water VApor Program (E-GVAP). These tropospheric delay models, grids, and maps are generated on a daily basis, covers Europe, and have a time resolution of 1 hour and a spatial resolution of 0.1° x 0.1°. In parrallel, high spatial resolution models, grids, and maps over Belgium and its surrounding are also generated.

GNSS-based final positions and tropospheric delays estimated operationally by the Royal Observatory of Belgium (ROB) - Solar-Terrestrial Centre of Excellence (STCE) in the framework of his participation to the EUMETNET EIG GNSS water VApor Program (E-GVAP). These daily precise positions and hourly precise tropospheric delays are computed with a post-processing scheme applied on a very large network of GNSS stations world-wide (as of today 1200+ stations). The final positions are used as station coordinates for estimating tropospheric delays and contribute to E-GVAP. The final tropospheric delay estimates are used for validating ROBS's near real-time, quasi real-time and real-time tropospheic delay estiamtes.

GNSS-based tropospheric delays estimated operationally in near real-time by the Royal Observatory of Belgium (ROB) - Solar-Terrestrial Centre of Excellence (STCE) in the framework of his participation to the EUMETNET EIG GNSS water VApor Program (E-GVAP). These tropospheric delays are computed every 1 hour from a world-wide network of GNSS stations with a time resolution of 15 min to support global NWP models and regional NWP models outside Europe.