1.
Meteorological measurements in the upper air at station Soesterberg, 1916-03-02 to 1923-11-08, ERA-CLIM ID 5018A
2.
Meteorological measurements in the upper air at station Breedene, 1915-06-28 to 1917-05-24, ERA-CLIM ID 4983
Meteorological measurements in the upper air at station Breedene, 1915-07-09 to 1917-05-25, ERA-CLIM ID 4984
Meteorological measurements in the upper air at station St. Michel, 1917-09-30 to 1918-09-28, ERA-CLIM ID 4985
Meteorological measurements in the upper air at station Soesterberg, 1911-06-09 to 1920-06-14, ERA-CLIM ID 5003A
Meteorological measurements in the upper air at station Soesterberg, 1913-02-12 to 1918-03-09, ERA-CLIM ID 5007A
Meteorological measurements in the upper air at station Soesterberg, 1913-09-15 to 1923-12-31, ERA-CLIM ID 5012A
Meteorological measurements in the upper air at station Duin Dal, 1914-02-01 to 1923-11-15, ERA-CLIM ID 5016A