Abstract

A meteorological range measuring device in use at Barrow, Alaska, utilizing two dark cavities is described and sample data is presented. From the two values of range which can be computed from the equation, υ = x ln 50/ln[B_h/(B_h − B_x)], an approximate relation is developed for a corrected range having the form 1/υ_c = K₁/υ₁ − K₂/υ₂. A concept of measuring error as instrumental scattering of horizon and background light by a constant factor, ∊, is developed and is shown to be determinable from υ₁ and υ₂ by a relation of the form, ∊ = a₁K₂(1/υ₁ − 1/υ₂). The statistical properties of ∊ are examined from actual data and the possibilities of a single cavity system with a known ∊ are discussed.

© 1964 Optical Society of America

Visibility

Seibert Q. Duntley, Jacqueline I. Gordon, John H. Taylor, Carroll T. White, Almerian R. Boileau, John E. Tyler, Roswell W. Austin, and James L. Harris
Appl. Opt. 3(5) 549-598 (1964)

A Scattering Meter for Deep Water

John E. Tyler and Roswell W. Austin
Appl. Opt. 3(5) 613-620 (1964)

Variation of the Infrared Spectral Radiance near the Limb of the Earth

D. Q. Wark, J. Alishouse, and G. Yamamoto
Appl. Opt. 3(2) 221-227 (1964)

Field Photometer with Nine-Element Filter Wheel

Z. Frentress, L. C. Young, and H. D. Edwards
Appl. Opt. 3(2) 303-308 (1964)

Rayleigh Scattering

Victor Twersky
Appl. Opt. 3(10) 1150-1162 (1964)