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EUPORIAS WP22 Climate Impact Indicators (CII)

Based on Milestone 19 from WP22, a preliminary set of Climate Information Indices (CII) was defined to cover different economic sectors. These CII are: the Fire Weather Index (FWI), the Physiological Equivalent Temperature (PET), the Occurrence of Temperatures below -17C (T<-17C), the Growing Season Suitability (GSS), the Growing Season Precipitation (GSP), the Cool night Index (CI), the Huglin Heliothermal Index (HI), the Hydrothermic Index (HyI), the Upper Wind Speed (CFU), the Temperature related Mortality Index (UDIC) and the Heating Degree Days (HDD). Below, all of them are briefly described.

All these CII require different variables with different temporal frequencies as input data.

Variables needed by the CIIs Time Frequency CII's
Surface temperature Daily mean GSS, HI, HyI, HDD, UDIC
Surface temperature Instantaneous at 7am, 2pm and 9pm (local time) PET
Surface temperature Instantaneous at noon local standard time or daily maximum FWI
Minimum temperature Daily mean T<-17C, CI
Maximum temperature Daily mean HI
Dew point temperature Daily mean UDIC
Wind Speed Monthly mean CFU
Wind Speed Instantaneous at 7am, 2pm and 9pm (local time) PET
Wind Speed Instantaneous at noon local standard time or daily mean FWI
Surface moisture Daily mean UDIC
Precipitation accumulated over 24h Instantaneous, Daily FWI
Precipitation Daily mean GSP, HyI
Relative Humidity Instantaneous at noon local standard time or daily mean FWI
Relative Humidity Instantaneous at 7am, 2pm and 9pm (local time) PET
Short wave radiation flux Instantaneous at 7am, 2pm and 9pm (local time) PET
Long wave radiation flux Instantaneous at 7am, 2pm and 9pm (local time) PET
Cloudiness (in octas) Instantaneous at 7am, 2pm and 9pm (local time) PET

Note that, in some cases, the calculation of these CIIs involve the used of data at specific local times. However, the SPECS-EUPORIAS data portal does only intend to make available a reduced number of variables (tipically surface variables such as precipitation and temperatures) at certain UTC times. Therefore, end-users' feedback is needed in order to define the common set of variables/UTC times which will be stored, taking into account the requirements needed for (among others) the calculation of the above CIIs (further details on this can be found here).