H 2 vertical profiles in the continental boundary layer: measurements at the Cabauw tall tower in The Netherlands

In-situ, quasi-continuous measurements of atmospheric hydrogen (H 2 ) have been performed since October 2007 at the Cabauw tall tower station in the Netherlands. Mole fractions of H 2 , CO and several greenhouse gases are determined simultaneously in air sampled successively at four heights, between 20 and 200 m above ground level. 222 Rn measurements are performed in air sampled at 20 and 200 m. This H 2 dataset represents the first in-situ, quasi-continuous long-term measurement series of vertical profiles of H 2 in the lower continental boundary layer. Seasonal cycles are present at all hei... Mehr ...