Fig. 4: Hourly variations of ground-observed and predicted PM2.5 in Seoul. | npj Climate and Atmospheric Science

Fig. 4: Hourly variations of ground-observed and predicted PM2.5 in Seoul.

From: Synergistic combination of information from ground observations, geostationary satellite, and air quality modeling towards improved PM2.5 predictability

Fig. 4: Hourly variations of ground-observed and predicted PM2.5 in Seoul.The alternative text for this image may have been generated using AI.

Panels a–f present comparisons between observed PM2.5 and predicted PM2.5 obtained in the experiments a from CAMS NRT, b from the control run (without 3DV), c with 3DV using MODIS AOD, d with 3DV using GOCI AOD, e with 3DV using ground observations, and f with 3DV using both GOCI AOD and ground observations. The three gray-shaded areas represent Asian dust (I), air stagnant (II), and long-range transport (III) episodes, respectively.

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