World-wide, scientists from various countries
have joint forces in a large number of measurement campaigns to
gather the necessary information for better understanding the
chemistry of the atmosphere. Measurement campaigns have been
carried out over the oceans, over tropical forests, including
conditions of extensive forest and savannah burning, in the
stratosphere, etc. Very little information is however available
for the continental areas Eurasia.
In an unusual, but useful approach, the Max-Planck-Institute of Chemistry and the Institute for Atmospheric Physics (both in Mainz, GER) have started a series of expeditions using the unique
platform of the Trans-Siberian Railroad. These TROICA expeditions
prove to be very useful, because with modest financial means large
land areas can be researched.
Coal, timber and water are among the other abundant resources of Siberia, examples being the forest area of about 2 x 106 km2 and the Baikal lake, which aloe holds 1/5 of the world fresh water reserves. The wetlands of West Siberia form a large source of atmospheric methane emissions. This source needs further research and quantification.
Consistent measurements of the trace gases and
other atmospheric variables along the Trans-Siberian railroad and
the river Ob, with concurrent meteorological observations would
improve our understanding of processes causing their spatial and
temporal variations in the lower troposphere.