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Relationships between vertical attenuation and surface meteorological range.

|January 23, 2010

Summary

This study defines the haze regime using meteorological range limits. It establishes relationships between surface haze and vertical atmospheric attenuation across various wavelengths.

Area of Science:

Atmospheric Science
Optical Remote Sensing
Aerosol Physics

Background:

Haze significantly impacts surface visibility and atmospheric optical properties.
Understanding haze requires defining its limits and relating surface conditions to vertical atmospheric effects.

Purpose of the Study:

To define the lower and upper limits of the haze regime based on meteorological range.
To develop quantitative relationships between surface haze and vertical aerosol attenuation.
To compute vertical attenuation parameters for aerosols across a spectrum of wavelengths.

Main Methods:

Defined haze regime limits using meteorological ranges of 1.2 km and 15 km.
Selected eight representative meteorological ranges within these limits.

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Calculated vertical aerosol attenuation parameters by deriving aerosol scale height for each range.

Computed attenuation for twenty wavelengths in UV, visible, and IR spectrum.

Main Results:

Established defined lower (1.2 km) and upper (15 km) bounds for the haze regime.
Derived aerosol scale heights correlating with specific meteorological ranges.
Computed vertical aerosol attenuation parameters for multiple wavelengths.
Integrated results with existing data on molecular, ozone, and aerosol attenuation up to 50 km.

Conclusions:

The study provides a framework for quantifying haze effects on atmospheric visibility and optical properties.
The derived relationships are crucial for atmospheric modeling and remote sensing applications.
This research contributes to a better understanding of aerosol impacts on radiative transfer in the atmosphere.