摘要
[Objective] The research aimed to review the analysis and research on the physicochemical characteristic observation aspect of fog. [Method] To understand the roles of fog microphysical characteristic and chemical reaction on the formation, dissipation, development of fog, the interaction between the microphysical structure, chemical characteristic of fog and the aerosol in the environment, the analysis and research on the micro-physicochemical observation aspect of fog were mainly introduced here. We also put forward that the field still needed the deep research content. [Result] The observation and research on the micro-physicochemical characteristics of fog could reveal the mechanisms of fog formation, dissipation, development from the microphysical components and the reaction of chemical composition. The previous researches focused on the concentration of micro-fog droplet, the particle size of fog droplet, the liquid water content in the fog, the particle concentration, size, chemical component and reaction of aerosol. It included the evolution and interaction between the microscopic quantities in the fog, the relationship between the microscopic quantity and the visibility. As the improvements of observation experiment instruments and sampling method, it recognized that the fog in the polluted environment condition and the clean air had the obvious difference whether in the microphysical characteristic or the chemical component. The particle concentration, chemical component and liquid water content of fog were all depended on the fog particle size. The interaction between the radiation, turbulent flux and the micro-physical characteristics of fog, the vertical structure of microphysics in the fog, the interaction between the chemical components, the relationship between the microphysical quantity and the macro-physical quantity (such as the visibility), the precision of experimental instrument, etc. needed the further research. [Conclusion] The research provided the comprehensive knowledge for the characteristic analysis and forecast of fog.
[Objective] The research aimed to review the analysis and research on the physicochemical characteristic observation aspect of fog. [Method] To understand the roles of fog microphysical characteristic and chemical reaction on the formation, dissipation, development of fog, the interaction between the microphysical structure, chemical characteristic of fog and the aerosol in the environment, the analysis and research on the micro-physicochemical observation aspect of fog were mainly introduced here. We also put forward that the field still needed the deep research content. [Result] The observation and research on the micro-physicochemical characteristics of fog could reveal the mechanisms of fog formation, dissipation, development from the microphysical components and the reaction of chemical composition. The previous researches focused on the concentration of micro-fog droplet, the particle size of fog droplet, the liquid water content in the fog, the particle concentration, size, chemical component and reaction of aerosol. It included the evolution and interaction between the microscopic quantities in the fog, the relationship between the microscopic quantity and the visibility. As the improvements of observation experiment instruments and sampling method, it recognized that the fog in the polluted environment condition and the clean air had the obvious difference whether in the microphysical characteristic or the chemical component. The particle concentration, chemical component and liquid water content of fog were all depended on the fog particle size. The interaction between the radiation, turbulent flux and the micro-physical characteristics of fog, the vertical structure of microphysics in the fog, the interaction between the chemical components, the relationship between the microphysical quantity and the macro-physical quantity (such as the visibility), the precision of experimental instrument, etc. needed the further research. [Conclusion] The research provided the comprehensive knowledge for the characteristic analysis and forecast of fog.
基金
Supported by National Natural Science Fund (41075004,41075005)
Tianjin Natural Science Fund (08JCYBJC10300)
"11th Five-year" National Science and Technology Support Plan Key Item (2008BAC37B01,2008BAC37B05)
