Modeling Path Radiance Effects From Aerosol Clouds

Donald W Hoock

doi:10.1117/12.945776

10 August 1988 Modeling Path Radiance Effects From Aerosol Clouds

Donald W Hoock

Proceedings Volume 0926, Optical, Infrared, Millimeter Wave Propagation Engineering; (1988) https://doi.org/10.1117/12.945776
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

Atmospheric aerosols, particularly dense, local clouds of smoke, dust and fog, have a variety of extinction, multiple scattering and thermal emission effects on propagation and imaging. This paper presents an approach to simulating realistic aerosol path-radiance effects that are not treated in the usual transmission codes. Depending on illumination and concentration, aerosol clouds may range in appearance from thin translucent wisps to opaque diffuse reflectors or emitters. Typically the clouds are inhomogeneous and have complex, finite geometries. Their radiative transfer properties are therefore particularly difficult to predict. This paper uses a method developed by the U.S. Army Atmospheric Sciences Laboratory to model and investigate the radiative transfer effects of such aerosol clouds under a variety of illumination conditions. The method is applied to show some interesting examples of the contrast and apparent temperature signatures of aerosol clouds themselves, the changes to signatures of partly obscured objects and the effect on received images at the sensor under various illumination conditions.

Citation Download Citation

Donald W Hoock "Modeling Path Radiance Effects From Aerosol Clouds", Proc. SPIE 0926, Optical, Infrared, Millimeter Wave Propagation Engineering, (10 August 1988); https://doi.org/10.1117/12.945776

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available