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Asian and trans-Pacific dust: a multi-model and multi-remote sensing observation analysis

Kim, D., Chin, M., Yu, H., Pan, X., Bian, H., Tan, Q., Kahn, R. A., Tsigaridis, K., Bauer, S. E., Takemura, T., Pozzoli, L., Bellouin, N. and Schulz, M. (2019) Asian and trans-Pacific dust: a multi-model and multi-remote sensing observation analysis. Journal of Geophysical Research: Atmospheres, 124 (23). pp. 13534-13559. ISSN 2169-8996

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To link to this item DOI: 10.1029/2019JD030822


Dust is one of the dominant aerosol types over Asia and the North Pacific Ocean, but quantitative estimation of dust distribution and its contribution to the total regional aerosol load from observations is challenging due to the presence of significant anthropogenic and natural aerosols and the frequent influence of clouds over the region. This study presents the dust aerosol distributions over Asia and the North Pacific using simulations from five global models that participated in the AeroCom phase II model experiments, and from multiple satellite remote-sensing and ground-based measurements of total aerosol optical depth (AOD) and dust optical depth (DOD). We examine various aspects of aerosol and dust presence in our study domain: (1) the horizontal distribution, (2) the longitudinal gradient during trans-Pacific transport, (3) seasonal variations, (4) vertical profiles, and (5) model-simulated dust life cycles. This study reveals that the diversity of DOD is mostly driven by the diversity of the dust source followed by residence time and mass extinction efficiency.

Item Type:Article
Divisions:Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
ID Code:87376
Publisher:American Geophysical Union


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