Natural terrain infrared radiance statistics in a wind field

Rao Ruizhong; Zhengfang Song

doi:10.1117/12.45773

1 July 1991 Natural terrain infrared radiance statistics in a wind field

Rao Ruizhong, Zhengfang Song

Proceedings Volume 1486, Characterization, Propagation, and Simulation of Sources and Backgrounds; (1991) https://doi.org/10.1117/12.45773
Event: Orlando '91, 1991, Orlando, FL, United States

Abstract

Forced heat convection in a wind field is considered, and the infrared radiance statistics of natural terrain are analyzed by a heat balance equation. A first-order approximation is used for the terrain radiance term in the equation. The results show that forced heat convection can change the statistic distribution of the radiance in a thermal image of natural terrain. With the increase in wind speed, the most probable and average temperature will trend to the steady air temperature over the terrain, and the thermal image contrast will decrease. The saturation phenomena of the forced convection effect are also mentioned.

Citation Download Citation

Rao Ruizhong and Zhengfang Song "Natural terrain infrared radiance statistics in a wind field", Proc. SPIE 1486, Characterization, Propagation, and Simulation of Sources and Backgrounds, (1 July 1991); https://doi.org/10.1117/12.45773

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