Research Article
The Impacts of Different PBL Schemes on the Simulation of PM2.5 during Severe Haze Episodes in the Jing-Jin-Ji Region and Its Surroundings in China
Figure 1
Nested modeling domains (a), the distribution of observation sites within domain 2 ((b) filled circles: PM2.5 observation sites; open circles: surface meteorological sites; open triangles: upper-air meteorological stations; the dashed-line square area represents the research area (3JNS)), and the topography of the research area (c).