Polarized properties of the directional-hemispherical reflectance and emissivity of an opaque surface

Richard A. Anderson

doi:10.1117/12.138830

8 December 1992 Polarized properties of the directional-hemispherical reflectance and emissivity of an opaque surface

Richard A. Anderson

Proceedings Volume 1747, Polarization and Remote Sensing; (1992) https://doi.org/10.1117/12.138830
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The measurement of temperature of the earth's surface from space is an important remote sensing parameter and depends upon the surface emissivity. Directional-hemispherical emissivities have been measured for several different soil samples with 10 micrometers CO₂ laser radiation. The CO₂ laser is a possible polarized source for active remote sensing. The angular variation of the directional-hemispherical emissivity has been calculated from directional reflectance measurements for horizontal and vertical polarized CO₂ radiation on different soil samples and they depended upon the polarization of the incident light. In this paper it is demonstrated that the directional-hemispherical reflectance, absorbance, and emissivity are 4 X 4 Mueller matrices. For uniform incident radiance of definite state of polarization incident on an area dA' within a projected solid angle d(Omega) ' equals Cos(Theta) 'd(omega) ' at angles ((Theta) ', (phi) ') Kirchhoff's formula relating the emissivity and reflectance involves definite sums and/or differences of Mueller matrix components of the reflectance and emissivity and depends on the polarization of the incident light. The directional-hemispherical emissivity of opaque soil samples are polarization dependent.

Citation Download Citation

Richard A. Anderson "Polarized properties of the directional-hemispherical reflectance and emissivity of an opaque surface", Proc. SPIE 1747, Polarization and Remote Sensing, (8 December 1992); https://doi.org/10.1117/12.138830

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