Boundary-Layer Characteristics of Persistent Regional Haze Events and Heavy Haze Days in Eastern China

Figure 4

Surface conditions during heavy haze days ((a) equalized pressure: EQP, (b) advancing edge of a cold front: ACF, (c) base of high pressure: BOH, (d) backside of high pressure: BAH, and (e) inverted trough: INT).

(a)

(b)

(c)

(d)

(e)