We carried out airborne
campaigns over Europe in order to analyze
atmospheric CO2 variability at the regional scale. Data reveal a
higher standard variation in the planetary boundary layer (PBL) against a lower
one in the free troposphere (FT), where the air is more well mixed. Ground data
generally agree well with airborne measurements when done in the FT, but not in
the PBL where they are exposed to local disturbances. Ground stations located
in the FT are shown to be representative of a regional scale while PBL
observatories provide only locally representative measurements.
Author: I. Xueref, M. Ramonet, P.Nedelec, J.A.Morgui, et al (ramonet at lsce dot saclay dot cea dot fr)
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