Fig. 6: Influence of vertical relative humidity on PM2.5 prediction during hazy and non-hazy conditions: comparison between drone measurements and WRF-Chem simulations. | npj Clean Air

Fig. 6: Influence of vertical relative humidity on PM2.5 prediction during hazy and non-hazy conditions: comparison between drone measurements and WRF-Chem simulations.

From: Drone measurements reveal high near-surface urban haze

Fig. 6: Influence of vertical relative humidity on PM2.5 prediction during hazy and non-hazy conditions: comparison between drone measurements and WRF-Chem simulations.The alternative text for this image may have been generated using AI.

a Vertical profiles of drone-measured and WRF-simulated RH values during hazy and non-hazy mornings. b Mean % RH difference with altitude during hazy and non-hazy mornings. c RH bias and subsequent uncertainty percentage in PM2.5 prediction by WRF-Chem when compared with the drone-measured PM2.5 values.

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