A Photographic Approach for Visualization of Suspended Particulate Matter

Tomoo AOYAMAa*, Junko KAMBEb, Umpei NAGASHIMAc and Eiko NAKAYAMAd

aFaculty of Engineering, University of Miyazaki
Gakuen Kibanadai Nishi 1-1, Miyazaki 889-2192, Japan
bFaculty of Media Communication, Edogawa University
Komaki 274, Nagareyama, Chiba 270-0198, Japan
cResearch Institute for Computational Science
Umezono 1-1-1, Tsukuba, Ibaraki 305-8568, Japan
dFaculty of Human Life and Environmental Science
Showa Women's University, Taishido, Setagaya, Japan

(Received: May 12, 2008; Accepted for publication: October 20, 2008; Advance publication: December 12, 2008)

Meteorological phenomena, yellow sand and haze are caused by suspended particulate matter (SPM) in the atmosphere. We measured the density when the phenomena occurred. We show that there is a meso-structure in the SPM distribution; and the distributive representation function is different from the yellow sand in the case of boundary surfaces of the atmosphere.
We devised an SPM visualizing method to watch the details of the meso-structure, which was by using a digital single-lens reflex camera. On use of the method, the yellow sand phenomena have the following characters.
1. The distribution has a high density center and the shape of the fringe is not decided. Occasionally, an unstable cloud was generated in the fringe.
2. Estimating the upper limit of the yellow sand from the cloud, we obtain the altitude (about 600m).
3. The yellow sand subsiding in the sea has two layers which are the main body and diffused haze.
We applied the method to the haze and got the following:
1. The detailed flow in the atmosphere is described by the scattering of SPM particles. Thus, the SPM is a tracer to detect the atmospheric flow.
2. The three-dimensional structure of the atmosphere is estimated by the RGB resolution image of the scattering pictures qualitatively.

Keywords: Aerosol, Suspended particulate matter, Asian dust, Dust and sandstrorm, Haze, Visualization

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