Energy balance model for imagery and electromagnetic propagation

Henry Rachele; Arnold Tunick

doi:10.1117/12.137907

1 August 1992 Energy balance model for imagery and electromagnetic propagation

Henry Rachele, Arnold Tunick

Proceedings Volume 1688, Atmospheric Propagation and Remote Sensing; (1992) https://doi.org/10.1117/12.137907
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

The optical turbulence structure parameter C_n² typically appears in formulations used to estimate the effects of temperature and moisture (gradients) on imagery and electro- magnetic propagation. Temperature and moisture gradients can be approximated from sensible and latent heat flux estimates, and these fluxes can be obtained from radiation/energy balance equations. Numerous energy balance models exist requiring different kinds and numbers of inputs. The semiempirical model developed and presented in this paper was constrained to require a minimum number of conventional measurements at a reference level (2 m). These measurements include temperature, pressure, relative humidity, and windspeed. The model also requires a judgment of soil type and moisture (dry, moist, or saturated), cloud characteristics (tenths of cloud cover and density and an estimation of cloud height), day of the year, time of day, and longitude and latitude of the site of interest. Model estimates of net radiation, sensible and latent heat fluxes, and C_n² are compared with measured values.

Citation Download Citation

Henry Rachele and Arnold Tunick "Energy balance model for imagery and electromagnetic propagation", Proc. SPIE 1688, Atmospheric Propagation and Remote Sensing, (1 August 1992); https://doi.org/10.1117/12.137907

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