Research Article
Investigation of the Air Pollution Event in Beijing-Tianjin-Hebei Region in December 2016 Using WRF-Chem
Figure 2
Topographic map of D02 (unit: m). Shading indicates terrain height, except for dark blue showing Bohai Sea. Black dotted line indicates location of hypothetical terrain, and solid black line indicates vertical cross section corresponding to Figure 7. Dotted circles indicate cities.