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Description |
Methods of calculating |
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Tmax |
= maximum air temperature |
automatically calculated from all single values1 |
Tm |
= average air temperature |
automatically calculated from all single values |
Tmin |
= minimum temperature |
automatically calculated from all single values |
Emin |
= min. temperature 5 cm agl2 |
manually calculated from hourly measurements |
RH |
= average relative humidity |
manually calculated from values at SYNOP times 3 |
PPP |
= sea-level pressure |
manually calculated from values at SYNOP times |
WW |
= weather conditions4 |
continuous observation |
RR |
= amount of precipitation |
manual measurement at 7 am and 7 pm CET |
SH |
= snow depth |
manual measurement at 7 am CET |
Vmax |
= maximum wind speed |
automatically calculated from all single values |
Vdir |
= prevailing wind direction |
automatically calculated from all single values |
Data |
= available datasets |
manually calculated from hourly records5 |
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Additional Abbreviations |
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RR24h |
= maximum of RR within 24 h |
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SHmax |
= maximum of snow-depth |
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pmax |
= highest pressure at sea level |
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pmin |
= lowest pressure at sea level |
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Vm |
= Vmax averaged |
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