Mr. Qiao Zhi Profile

Qiao Zhi

at Anhui Institute of Optics and Fine Mechanics CAS

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Proceedings Article | 24 November 2021 Paper

Digesting WRF-forcasted meterological parameters for aerosol optical properties predicting with the CAM model

Qiao Zhi, Shengcheng Cui, Baoying Li, Zihan Zhang, Yue Pan, Yang Wu, Kun Zhang, Feifei Wang, Gang Sun, Tao Luo, Xuebin Li

Proceedings Volume 12064, 1206409 (2021) https://doi.org/10.1117/12.2605799

KEYWORDS: Atmospheric modeling, Aerosols, Content addressable memory, Atmospheric particles, Coastal modeling, Meteorology, Humidity, Data modeling, Temperature metrology, Particles

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As an important part of the atmospheric environment, aerosols play a critical role in the study of the relationship between light and radiation. However, due to the complex spatiotemporal distribution of aerosols, it is much difficult to measure their microphysical properties and to determine their optical properties in coastal areas. In this paper, basic meteorological elements (e.g., wind speed, temperature, humidity) are simulated with the numerical weather forecasting (WRF) model. Then, the coastal aerosol model (CAM) together with the observation data is used to simulate the aerosol particle size distribution (APSD) and extinction coefficient for the coastal environment of Qingdao. Finally, data measured by the automatic weather station and particle counter in the coastal area are compared to their corresponding simulations. According to the comparisons results, temperature simulations were higher from an overall perspective (<2°C) with the correlation coefficient larger than 0.96; humidity simulations were comparatively lower on the 11th and 12th day (<10%) than those onthe 13th day (<20%), but the correlation coefficient was still larger than 0.8. With the meterological parameters simulations, the CAM model was used to predict the APSDs. It is founded that simulations for large particles are generally larger, while those for giant particles are generally smaller, but the simulated temperature, humidity, APSD and extinction coefficient are very consistent with their corresponding measurements. The method established in this paper is promising for the simulation and forecast of both the meteorological elements and aerosol microphysical properties.

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