Signal of SCIAMACHYs Polarisation Measurement Device (PMD) number 1
(ultra-violet) Color code: low signal level = dark blue, high signal
level = light blue or white). High signal levels are assumed to
result mainly from clouds. The spatial resolution is approximately
30x7 km2. The signal has been divided by the cosine of the solar
zenith angle.
Earths surface elevation corresponding to orbit 2338 (grid: 1 deg x 1 deg).
Preliminary total columns of nitrogen dioxide over Europe derived from
SCIAMACHY Nadir measurements as compared to GOME data (Dr. A. Richter). It
can clearly be seen that the improved horizontal resolution of SCIAMACHY
facilitates the detection of the high spatial variability of tropospheric
NO2. The plumes of the metropolitan areas in the UK and of cities such as
Vienna or Rome can readily be identified. The good spatial resolution and
the high data quality of SCIAMACHY NO2 measurements will enable us to
quantify global emissions of NO2 in the near future.
Detection of nitrogen dioxide total columns over the north-eastern part of
the United States of America from SCIAMACHY nadir measurements compared with
GOME (Dr. A. Richter).