Study on the Precursor Signal Capturing of Unfavorable Weather: Months/Years in Advance to Ultra-Early Forecast for Hourly Transient Weather Changes during the Beijing Winter Olympics

Figure 8

(a) Forecast analysis of the impact of meteorological conditions on air quality in the same period as the Beijing Winter Games for the past five years (2017 to 2021) based on the data of Table 5; (b) the high-resolution (hourly) weather changes with observations for the period of Beijing Winter Olympics (February 2022); (c) a map of the ground weather at 14:00 on February 11, 2022.

(a)

(b)

(c)