COIN2 (COst of INaction 2) aims to quantify the future costs of not mitigating climate change, that would specifically affect Austria. To that end bias-corrected and down-scaled climate projections from the EURO-CORDEX ensemble are used to generate input data for a diverse set of impact models, spanning sectors from forestry and agriculture, health, water supply, tourism, etc.

From the original ÖKS15 (https://doi.org/10.60669/b37q-jd39) datasets:

SDM_ICHEC-EC-EARTH_rcp45_r1i1p1_KNMI-RACMO22E, SDM_ICHEC-EC-EARTH_rcp85_r1i1p1_KNMI-RACMO22E, SDM_IPSL-IPSL-CM5A-MR_rcp85_r1i1p1_IPSL-INERIS-WRF331F and SDM_MOHC-HadGEM2-ES_rcp85_r1i1p1_CLMcom-CCLM4-8-17,

mean daily temperature (tas) and from the DISCC-AT (https://doi.org/10.60669/gbdv-gq54) mean daily dewpoint temperature (td) datasets were used to calculate the daily Vapor Pressure Deficit (vpd) via the saturation vapor pressure (e_s):

e_s = 6.1078 * exp( (17.269 * tas) / (237.3 + tas) ),

via the Relative Humidty (RH):

RH = 100 * [ exp(17.625 * td / (243.04 + td)) / exp(17.625 * tas / (243.04 + tas)) ]

and via:

VPD = e_s * (1 - RH/100)

Editorial note (May 2026): The current scientific assessment of the ÖKS15 data underlying this dataset may be relevant to the interpretation of the data provided here. Further information and contact details for inquiries are available at https://klimaszenarien.at/oeks-15/ and info@ccca.ac.at.

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