IWV Measurement and Modelling with GNSS and NWP (WRF) over Northwest Bulgaria

Authors

  • Martin Slavchev Faculty of Physics, Sofia University “St. Kliment Ohridski” and National Institute of Meteorology and Hydrology, Bulgaria
  • Tzvetan Simeonov Gruan Lead Centre, Meteorological Observatory Lindenberg, Deutscher Wetterdienst (DWD)
  • Keranka Vassileva Faculty of Physics, Sofia University “St. Kliment Ohridski”
  • Guergana Guerova Faculty of Physics, Sofia University “St. Kliment Ohridski”

DOI:

https://doi.org/10.7546/CRABS.2022.06.08

Keywords:

GNSS meteorology, thunderstorms, IWV, nowcasting

Abstract

In recent decades, the increase in the number and intensity of high-impact weather events, like intense precipitation, hail and thunderstorms has been an indisputable trend worldwide. In Bulgaria they are common in the summer months and cause large economic losses. As a part of the project “Balkan-Mediterranean real-time severe weather service”, since February 2020, the Sofia University Global Navigation Satellite System (GNSS) Analysis Center processes in operational near-real time mode (NRT) stations in Bulgaria. In this study the Integrated Water Vapour (IWV) for four stations in Northwest Bulgaria was calculated using the Weather Research and Forecasting (WRF) model and the results are compared with IWV derived from the GNSS-meteorology concept. The results obtained lead to the conclusion that the model IWV is higher than the one derived from GNSS.

Author Biographies

Martin Slavchev, Faculty of Physics, Sofia University “St. Kliment Ohridski” and National Institute of Meteorology and Hydrology, Bulgaria

Mailing Address:
Department of Meteorology and Geophysics,
Faculty of Physics,
Sofia University “St. Kliment Ohridski”
5 James Bourchier Blvd
1164 Sofia, Bulgaria

and

National Institute
of Meteorology and Hydrology
66 Tsarigradsko Shosse Blvd
1784 Sofia, Bulgaria

E-mail: xmslavchevx@gmail.com

Tzvetan Simeonov, Gruan Lead Centre, Meteorological Observatory Lindenberg, Deutscher Wetterdienst (DWD)

Mailing Address:
Gruan Lead Centre,
Meteorological Observatory Lindenberg,
Deutscher Wetterdienst (DWD)
Am Observatorium 12
15848 Tauche/Lindenberg, Germany

E-mail: tzvetan.simeonov@dwd.de

Keranka Vassileva, Faculty of Physics, Sofia University “St. Kliment Ohridski”

Mailing Address:
Department of Meteorology and Geophysics,
Faculty of Physics,
Sofia University “St. Kliment Ohridski”
5 James Bourchier Blvd
1164 Sofia, Bulgaria

E-mail: keranka.vassileva@gmail.com

Guergana Guerova, Faculty of Physics, Sofia University “St. Kliment Ohridski”

Mailing Address:
Department of Meteorology and Geophysics,
Faculty of Physics,
Sofia University “St. Kliment Ohridski”
5 James Bourchier Blvd
1164 Sofia, Bulgaria

E-mail: guerova@phys.uni-sofia.bg

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Published

30-06-2022

How to Cite

[1]
M. Slavchev, T. Simeonov, K. Vassileva, and G. Guerova, “IWV Measurement and Modelling with GNSS and NWP (WRF) over Northwest Bulgaria”, C. R. Acad. Bulg. Sci. , vol. 75, no. 6, pp. 845–852, Jun. 2022.

Issue

Section

Geophysics