Martin Novak

Articles

UTCI as the NWP model ALADIN (CHMI) output – first experiences

Martin Novak

Geographia Polonica (2021) vol. 94, iss. 2, pp. 237-249 | Full text
doi: https://doi.org/10.7163/GPol.0203

Further information

Abstract:

The article includes a summary of basic information about the Universal Thermal Climate Index (UTCI) calculation by the numerical weather prediction (NWP) model ALADIN of the Czech Hydrometeorological Institute (CHMI). Examples of operational outputs for weather forecasters in the CHMI are shown in the first part of this work. The second part includes results of a comparison of computed UTCI values by ALADIN for selected place with UTCI values computed from real measured meteorological data from the same place.

Keywords: numerical weather prediction, UTCI, human biometeorology, thermal comfort/discomfort, weather station, biometeorological forecast

Martin Novak [martin.novak@chmi.cz], Czech Hydrometeorological Institute Kočkovská 18, 400 11 Ústí nad Labem: Czech Republic

Use of the UTCI in the Czech Republic

Martin Novak

Geographia Polonica (2013) vol. 86, iss. 1, pp. 21-28 | Full text
doi: https://doi.org/GPol.2013.3

Further information

Abstract:

The new Universal Thermal Climate Index (UTCI) was designed for use in the human bioclimatology and biometeorologyfield. This article describes a set of basic tests used to test the UTCI. These tests were made using real data fromselected meteorological stations in the Czech Republic. Days with extreme temperatures and days with extremely windyconditions (extratropical cyclone known as ‘hurricane Kyrill’, January 18-19, 2007) were selected for the UTCI testing. TheUniversal Thermal Climate Index is different from other, more commonly used indices. A complete set of meteorologicaland radiation factors: air temperature, humidity, wind speed and mean radiation temperature were used using whentesting the UTCI. Other indices were calculated using limited numbers of the following factors: air temperature andhumidity (Heat Index), air temperature and wind speed (Wind Chill), and also air temperature, humidity and wind speed(NET). Testing of the UTCI was necessary before the possible application of this index in the national weather serviceof the Czech Republic (CHMI).

Keywords: UTCI, thermal comfort/discomfort, biometeorological indices, bioweather forecast

Martin Novak [martin.novak@chmi.cz], Czech Hydrometeorological Institute Kočkovská 18, 400 11 Ústí nad Labem: Czech Republic