Key;
Laboratory;
of;
Atmospheric;
Boundary;
Layer;
Physics;
and;
Atmospheric;
Chemistry,;
Institute;
of;
Atmospheric;
Physics,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100029,;
China;
University;
of;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100049,;
China;