Abstract

The atmospheric structure constant, <i>C</i><sup>2</sup><sub><i>N</i></sub>, has been measured by use of three instruments, one optical and two thermal. The data show very good correlation (ρ<sub>xy</sub> = 0.88), but are related by a consistent scale factor: <i>C</i><sub><i>N</i></sub> (optical) = 0.34 × 10<sup>-8</sup> cm<sup>-2/3</sup> + 1.45C<sub><i>N</i></sub> (thermal). Several effects are discussed that may explain these results.

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  1. J. E. Pearson, W. B. Bridges, L. S. Horwitz, T. J. Walsh, and R. F. Ogrodnik, OSA Topical Meeting on Optical Progagation through Turbulence, Boulder, Colo., July 1974, paper ThB5.
  2. J. E. Pearson, Coherent Optical Adaptive Techniques (COAT), Rep. No. 5, DARPA/RADC Contract No. F30602-73-C-0248, December 1974 (available from RADC).
  3. We are grateful to G. R. Ochs of NOAA for suggesting this technique.
  4. G. R. Ochs, ESSA Tech. Rep. IER 47-ITSA 46 (U.S. Government Printing Office, Washington, D.C., 1967).
  5. P. M. Livingston, Appl. Opt. 11, 684 (1972).
  6. G. R. Ochs, R. R. Bergman, and J. R. Snyder, J. Opt. Soc. Am. 59, 231 (1969).
  7. D. L. Fried, J. Opt. Soc. Am. 57, 175 (1967).
  8. D. L. Fried and J. B. Seidman, J. Opt. Soc. Am. 57, 181 (1967).
  9. J. A. Dowling and P. M. Livingston, J. Opt. Soc. Am. 63, 846 (1973).
  10. Suggested independently by W. P. Brown, Jr. and a reviewer.
  11. C. A. Friehe, C. H. Gibson, and G. Dreyer, J. Opt. Soc. Am. 62, 1340 (1972).
  12. G. E. Mevers, M. P. Keister, Jr., and D. L. Fried, J. Opt. Soc. Am. 59, 491 (1969).
  13. J. R. Kerr, J. Opt. Soc. Am. 62, 1040 (1972).
  14. J. R. Dunphy and J. R. Kerr, J. Opt. Soc. Am. 63, 981 (1973).

Bergman, R. R.

G. R. Ochs, R. R. Bergman, and J. R. Snyder, J. Opt. Soc. Am. 59, 231 (1969).

Bridges, W. B.

J. E. Pearson, W. B. Bridges, L. S. Horwitz, T. J. Walsh, and R. F. Ogrodnik, OSA Topical Meeting on Optical Progagation through Turbulence, Boulder, Colo., July 1974, paper ThB5.

Brown, Jr., W. P.

Suggested independently by W. P. Brown, Jr. and a reviewer.

Dowling, J. A.

J. A. Dowling and P. M. Livingston, J. Opt. Soc. Am. 63, 846 (1973).

Dreyer, G.

C. A. Friehe, C. H. Gibson, and G. Dreyer, J. Opt. Soc. Am. 62, 1340 (1972).

Dunphy, J. R.

J. R. Dunphy and J. R. Kerr, J. Opt. Soc. Am. 63, 981 (1973).

Fried, D. L.

G. E. Mevers, M. P. Keister, Jr., and D. L. Fried, J. Opt. Soc. Am. 59, 491 (1969).

D. L. Fried, J. Opt. Soc. Am. 57, 175 (1967).

D. L. Fried and J. B. Seidman, J. Opt. Soc. Am. 57, 181 (1967).

Friehe, C. A.

C. A. Friehe, C. H. Gibson, and G. Dreyer, J. Opt. Soc. Am. 62, 1340 (1972).

Gibson, C. H.

C. A. Friehe, C. H. Gibson, and G. Dreyer, J. Opt. Soc. Am. 62, 1340 (1972).

Horwitz, L. S.

J. E. Pearson, W. B. Bridges, L. S. Horwitz, T. J. Walsh, and R. F. Ogrodnik, OSA Topical Meeting on Optical Progagation through Turbulence, Boulder, Colo., July 1974, paper ThB5.

Keister, Jr., M. P.

G. E. Mevers, M. P. Keister, Jr., and D. L. Fried, J. Opt. Soc. Am. 59, 491 (1969).

Kerr, J. R.

J. R. Kerr, J. Opt. Soc. Am. 62, 1040 (1972).

J. R. Dunphy and J. R. Kerr, J. Opt. Soc. Am. 63, 981 (1973).

Livingston, P. M.

P. M. Livingston, Appl. Opt. 11, 684 (1972).

J. A. Dowling and P. M. Livingston, J. Opt. Soc. Am. 63, 846 (1973).

Mevers, G. E.

G. E. Mevers, M. P. Keister, Jr., and D. L. Fried, J. Opt. Soc. Am. 59, 491 (1969).

Ochs, G. R.

G. R. Ochs, R. R. Bergman, and J. R. Snyder, J. Opt. Soc. Am. 59, 231 (1969).

We are grateful to G. R. Ochs of NOAA for suggesting this technique.

G. R. Ochs, ESSA Tech. Rep. IER 47-ITSA 46 (U.S. Government Printing Office, Washington, D.C., 1967).

Ogrodnik, R. F.

J. E. Pearson, W. B. Bridges, L. S. Horwitz, T. J. Walsh, and R. F. Ogrodnik, OSA Topical Meeting on Optical Progagation through Turbulence, Boulder, Colo., July 1974, paper ThB5.

Pearson, J. E.

J. E. Pearson, Coherent Optical Adaptive Techniques (COAT), Rep. No. 5, DARPA/RADC Contract No. F30602-73-C-0248, December 1974 (available from RADC).

J. E. Pearson, W. B. Bridges, L. S. Horwitz, T. J. Walsh, and R. F. Ogrodnik, OSA Topical Meeting on Optical Progagation through Turbulence, Boulder, Colo., July 1974, paper ThB5.

Seidman, J. B.

D. L. Fried and J. B. Seidman, J. Opt. Soc. Am. 57, 181 (1967).

Snyder, J. R.

G. R. Ochs, R. R. Bergman, and J. R. Snyder, J. Opt. Soc. Am. 59, 231 (1969).

Walsh, T. J.

J. E. Pearson, W. B. Bridges, L. S. Horwitz, T. J. Walsh, and R. F. Ogrodnik, OSA Topical Meeting on Optical Progagation through Turbulence, Boulder, Colo., July 1974, paper ThB5.

Other (14)

J. E. Pearson, W. B. Bridges, L. S. Horwitz, T. J. Walsh, and R. F. Ogrodnik, OSA Topical Meeting on Optical Progagation through Turbulence, Boulder, Colo., July 1974, paper ThB5.

J. E. Pearson, Coherent Optical Adaptive Techniques (COAT), Rep. No. 5, DARPA/RADC Contract No. F30602-73-C-0248, December 1974 (available from RADC).

We are grateful to G. R. Ochs of NOAA for suggesting this technique.

G. R. Ochs, ESSA Tech. Rep. IER 47-ITSA 46 (U.S. Government Printing Office, Washington, D.C., 1967).

P. M. Livingston, Appl. Opt. 11, 684 (1972).

G. R. Ochs, R. R. Bergman, and J. R. Snyder, J. Opt. Soc. Am. 59, 231 (1969).

D. L. Fried, J. Opt. Soc. Am. 57, 175 (1967).

D. L. Fried and J. B. Seidman, J. Opt. Soc. Am. 57, 181 (1967).

J. A. Dowling and P. M. Livingston, J. Opt. Soc. Am. 63, 846 (1973).

Suggested independently by W. P. Brown, Jr. and a reviewer.

C. A. Friehe, C. H. Gibson, and G. Dreyer, J. Opt. Soc. Am. 62, 1340 (1972).

G. E. Mevers, M. P. Keister, Jr., and D. L. Fried, J. Opt. Soc. Am. 59, 491 (1969).

J. R. Kerr, J. Opt. Soc. Am. 62, 1040 (1972).

J. R. Dunphy and J. R. Kerr, J. Opt. Soc. Am. 63, 981 (1973).

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