Figure 3

Spatial patterns of chemical gases and aerosols in relation to development of the AMA, showing distribution of CO (ppbv) at 100 hPa, superimposed with geopotential height and winds at the same level during (a) PRM and (b) PKM. Panels (c) and (d) are the same as in (a) and (b) respectively except for CA (ppbm). Panels (e) and (f) are the same as in (a) and (b) respectively, except for dust aerosols (ppbm). Maps are generated using the NCAR Command Language (Version 6.4.0, https://www.ncl.ucar.edu, 2017).