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Annual means

Shown here are annual means sorted by season, disturbance days and quiet days. Select from the table below.

All	Disturbance days	Quiet days
Annual mean	Annual mean	Annual mean
Summer mean	Summer mean	Summer mean
Winter mean	Winter mean	Winter mean
Spring-autumn average	Spring-autumn average	Spring-autumn average

Seasonal classifications:
    Winter: November, December, January, February
    Spring/autumn: March, April, September, October
    Summer: May, June, July, August

Disturbed days and Quiet days: Disturbed day means are calculated using all the 5 International Disturbed Days (IDD); Quiet day means are calculated using the 5 most-quiet days out of 10 International Quiet Days (IQD). IDD and IQD are published per month by ISGI/GFZ (https://isgi.unistra.fr/events_qdays.php).

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