Impact of climate change on site characteristics of eight major astronomical observatories using high-resolution global climate projections until 2050 - Projected increase in temperature and humidity leads to poorer astronomical observing conditions

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Table 5

Classification of the skill score based on requirements of the correlation (corr) between climate model data and observational in situ data and the standard deviation (std dev) of the model.

Classification	Corr	Std dev	Skill score
excellent	>0.95	<±0.05	>0.91
good	0.80–0.94	±(0.04–0.20)	0.63–0.90
mediocre	0.60–0.79	±(0.21–0.40)	0.32–0.62
poor	<0.60	>±0.40	<0.32

Notes. The requirements for the model standard deviation are displayed as deviations from the normalised reference standard deviation, which is always 1.

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