Observations of the Boundary Layer Structure and Aerosol Properties Using An Mie Scattering (CAT#: STEM-ST-0082-YJL)

Introduction

As the lowest part of the troposphere, the atmospheric boundary layer (ABL) is directly influenced by the earth's surface, and is of most importance for entire earth atmosphere and ecosystem. Over urban areas, the friction associated with the high density of buildings as well as the human activities results in a more complex ABL. Radiosonde and sodar are the traditional tools for collecting information on ABL, including temperature, humidity, pressure and wind velocity. However, these instruments cannot provide sufficient information about the ABL due to the lack of high temporal and spatial resolution. Lidar has been proved to be one of powerful tools to provide continuous observations of the ABL structure, cloud and aerosol properties with high spatial and temporal resolution.

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Principle Applications Procedure Materials Notes Related Products

Principle

Mie scattering is defined as the type of scattering in which the diameter of the particle is the same or more than the wavelength of the radiation. Mie scattering gives a generalized solution for a system where a scattering of light takes place by a homogenous spherical medium. And this medium should have a refractive index different from that of the medium through which the light is traversing.
Unlike Rayleigh scattering, Mie scattering is not a physically independent phenomenon rather, it is a solution to Maxwell's equations for situations where the phase of the incident angle can change within the dimension of the scattering particles. Mie scattering is more commonly known as Mie solution, and it is named after Gustav Mie, a German physicist.
Mie scattering is also known as aerosol particle scattering, takes place in the atmosphere below 1,500 feet. In Mie scattering, the diameter of the spherical particles through which the light is scattered is approximately equal to the wavelength.

Applications

Mie scattering occurs in a variety of applications, including atmospheric science, cancer detection and treatment, metamaterials, and parasitology. Another application is the characterization of particles by optical scattering measurements.

Procedure

1. Sample preparation
2. Measurement by scattering detection instrument
3. Data analysis

Materials

Mie scattering measurement system

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