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Meteorological measurements in the upper air at station Duin Dal, 1916-07-19 to 1916-07-20, ERA-CLIM ID 5968A
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Meteorological measurements in the upper air at station Duin Dal, 1914-02-01 to 1923-11-15, ERA-CLIM ID 5016A
Meteorological measurements in the upper air at station Duin Dal, 1914-02-01 to 1921-12-27, ERA-CLIM ID 5016B