The principle diagram of monitoring the VCD of the by using the scattered solar radiation. (a) The optical path of scattered solar radiation; (b) the detailed sketch map of scattering.
Spectrum of direct solar radiation captured on the plane and the spectrum of scattered solar radiation captured on the ground.
Experiment setup to capture the solar radiation.
The differential absorbance of . (a) From the scattered solar radiation; (b) from the direct solar radiation.
Absorption cross section of .
The retrieved tropospheric VCD of by using direct solar radiation and scattered solar radiation with different , in ChengDu, China. (a) On January 6, 2009; (b) on January 7, 2009; (c) on January 9, 2009; (d) January 10, 2009.
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