Thermal modeling of desert backgrounds in the far-infrared spectral region

Ali Mahmoodi; Abdolreza Nabavi; Mehdi N. Fesharaki

doi:10.1117/1.1287323

1 September 2000 Thermal modeling of desert backgrounds in the far-infrared spectral region

Ali Mahmoodi; Abdolreza Nabavi; Mehdi N. Fesharaki

Author Affiliations +

Optical Engineering, 39(9), (2000). https://doi.org/10.1117/1.1287323

Abstract

Several thermal models are introduced, based on both a steady-state and a non-steady-state heat balance equation. These are used to predict the surface temperature of dry bare desert background elements. Sensitivity analysis is performed for steady-state models, which indicates that for large measurement error the semiempirical models yield higher accuracy than the physical model. The non-steady-state models take account of variations of the meteorological parameters, and exhibit approximately 47% better performance for rapidly altering weather conditions. Also, the coefficients in these models may be used for a larger period of time to predict the surface temperature. Experimental tests are performed to examine the higher precision of the new models for predicting both the temperature and the thermal image of desert backgrounds. The mean prediction error of the new models is typically more than 25% better. Also, the contrast (variance) of the predicted thermal images is much closer to that of the real images during the daytime.

Citation Download Citation

Ali Mahmoodi, Ali Mahmoodi, Abdolreza Nabavi, Abdolreza Nabavi, Mehdi N. Fesharaki, Mehdi N. Fesharaki, } "Thermal modeling of desert backgrounds in the far-infrared spectral region," Optical Engineering 39(9), (1 September 2000). https://doi.org/10.1117/1.1287323 . Submission:

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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

Members: $20.00

Non-members: $25.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years