Articles | Volume 23, issue 18
https://doi.org/10.5194/acp-23-10423-2023
https://doi.org/10.5194/acp-23-10423-2023
Research article
 | 
20 Sep 2023
Research article |  | 20 Sep 2023

Evaluation of hygroscopic cloud seeding in warm-rain processes by a hybrid microphysics scheme using a Weather Research and Forecasting (WRF) model: a real case study

Kai-I Lin, Kao-Shen Chung, Sheng-Hsiang Wang, Li-Hsin Chen, Yu-Chieng Liou, Pay-Liam Lin, Wei-Yu Chang, Hsien-Jung Chiu, and Yi-Hui Chang

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Cited articles

Bo-Tao, Z. and Jin, Q.: Changes of weather and climate extremes in the IPCC AR6, Advances in Climate Change Research, 17, 713–718, 2021. 
Bruintjes, R. T., Jia, L., Busek, P., Salazar, V., Breed, D., Jensen, T., Ross, K., and Piketh, S.: Similarities between the effects of hygroscopic seeding and anthropogenic pollution on clouds, WMO/TD, No. 1146, 117–120, 2003. 
Caro, D., Wobrock, W., and Flossmann, A. I.: A numerical study on the impact of hygroscopic seeding on the development of cloud particle spectra, J. Appl. Meteorol., 41, 333–350, 2002. 
Chen, G. T.-J., Liu, C.-M., Jou, B. J.-D., and Chen, J.-P.: An assessment study and planning on precipitation enhancement program in Taiwan, Technical Report 84-2M-10, Central Weather Bureau, Ministry of Transportation and Communications, R.O.C. (Taiwan), 1995 (in Chinese). 
Chen, S., Xue, L., and Yau, M.-K.: Impact of aerosols and turbulence on cloud droplet growth: an in-cloud seeding case study using a parcel–DNS (direct numerical simulation) approach, Atmos. Chem. Phys., 20, 10111–10124, https://doi.org/10.5194/acp-20-10111-2020, 2020. 
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Short summary
This study develops a hybrid microphysics scheme to enable the complex model simulation of cloud seeding based on observational cloud condensation nuclei size distribution. Our results show that more precipitation can be developed in the scenarios seeding in the in-cloud region, and seeding over an area of tens km2 is the most efficient strategy due to the strengthening of the accretion process. Moreover, particles bigger than 0.4 μm are the main factor contributing to cloud-seeding effects.
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