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Meteorological measurements in the upper air at station Breedene, 1915-07-09 to 1917-05-25, ERA-CLIM ID 4984
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MH_WATERLAND - Western marsh harriers (Circus aeruginosus, Accipitridae) breeding near the Belgium-Netherlands border
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O_VLIELAND - Eurasian oystercatchers (Haematopus ostralegus, Haematopodidae) breeding and wintering on Vlieland (the Netherlands)
MH_ANTWERPEN - Western marsh harriers (Circus aeruginosus, Accipitridae) breeding near Antwerp (Belgium)
HG_OOSTENDE - Herring gulls (Larus argentatus, Laridae) breeding at the southern North Sea coast (Belgium)
LBBG_ZEEBRUGGE - Lesser black-backed gulls (Larus fuscus, Laridae) breeding at the southern North Sea coast (Belgium and the Netherlands)
O_WESTERSCHELDE - Eurasian oystercatchers (Haematopus ostralegus, Haematopodidae) breeding in East Flanders (Belgium)
Meteorological measurements in the upper air at station Utrecht, 1920-07-13 to 1920-07-13, ERA-CLIM ID 5986
Meteorological measurements in the upper air at station De Kooy, 1921-10-11 to 1923-12-27, ERA-CLIM ID 5005
Meteorological measurements in the upper air at station Duin Dal, 1916-09-06 to 1923-12-10, ERA-CLIM ID 5017