Abstract

Solar occultation spectra obtained with a balloon-borne interferometer have been used to study continuous absorption by N2 and CO2 near 2400 cm−1 in the lower stratosphere. Synthetic continuum transmittances, calculated from published coefficients for far-wing absorption by CO2 lines and for pressure-induced absorption by the fundamental band of N2, are in fair agreement with the observed stratospheric values. The continuum close to the ν3R-branch band head of CO2 is sensitive to the CO2 far-wing line shape. Therefore, given highly accurate knowledge of the N2 continuum from laboratory data, high-resolution stratospheric spectra provide a sensitive means for in situ testing of various air-broadened CO2 line shapes at low temperatures.

© 1981 Optical Society of America

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  1. J. Susskind, J. E. Searl, J. Quant. Spectrosc. Radiat. Transfer 18, 581 (1977).
    [CrossRef]
  2. C. B. Farmer, J. T. Houghton, Nature 209, 1341 (1966).
    [CrossRef]
  3. B. H. Winters, S. Silverman, W. S. Benedict, J. Quant. Spectrosc. Radiat. Transfer 4, 527 (1964).
    [CrossRef]
  4. D. E. Burch, D. A. Gryvnak, R. R. Patty, C. E. Bartky, J. Opt. Soc. Am. 59, 267 (1969).
    [CrossRef]
  5. M. W. P. Cann, R. W. Nicholls, P. L. Roney, F. D. Findlay, A. Blanchard, “Spectral Line Profiles in the 4.3 Micron Band of Carbon Dioxide,” in Digest of Topical Meeting on Spectroscopy in Support of Atmospheric Measurements, Sarasota, Fla. (Optical Society of America, Washington, 1980), paper WP16-1.
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
  8. J. H. Park, J. M. Russell, M. A. H. Smith, Appl. Opt. 19, 2132 (1980).
    [CrossRef] [PubMed]
  9. J. Susskind, J. E. Searl, J. Quant. Spectrosc. Radiat. Transfer 19, 195 (1978).
    [CrossRef]
  10. L. D. Kaplan, J. Susskind, R. J. Zander, “Determination of CO2 Line Shape from Balloon-Based Solar Spectra,” in Extended Abstracts, International Radiation Symposium, Fort Collins, Colo. (American Meteorological Society, Boston, 1980), p. 109.
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    [CrossRef] [PubMed]
  12. C. P. Rinsland, R. F. Wing, to be submitted to Astrophys. J.
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    [CrossRef]
  14. C. P. Rinsland, R. F. Wing, D. S. Hayes, in preparation.
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    [CrossRef]
  16. A. Goldman, J. Reid, L. S. Rothman, Geophys. Res. Lett. 8, 77 (1981).
    [CrossRef]
  17. J. H. Park, C. P. Rinsland, M. A. H. Smith, J. M. Russell, in preparation.
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef]
  21. M. M. Shapiro, H. P. Gush, Can. J. Phys. 44, 949 (1966).
    [CrossRef]
  22. D. E. Burch, D. A. Gryvnak, J. D. Pembrook, “Investigation of the Absorption of Infrared Radiation by Atmospheric Gases: Water, Nitrogen, Nitrous Oxide,” AFCRL-71-0124, Hanscom AFB, Mass. (1971).
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    [CrossRef]
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    [CrossRef]
  26. J. Susskind, T. Mo, “Atmospheric Absorption Spectra near 2200 cm−1 and 2400 cm−1,” in Preprint Volume, Third Conference on Atmospheric Radiation (American Meteorological Society, Boston, 1978), p. 219.
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    [CrossRef] [PubMed]
  29. J. P. Boissy, A. Valentin, Ph. Cardinet, M. L. Claude, A. Henry, J. Mol. Spectrosc. 57, 391 (1975).
    [CrossRef]
  30. L. D. Gray, A. T. Young, J. Quant. Spectrosc. Radiat. Transfer 9, 569 (1969).
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  32. J. H. Shaw, R. M. Chapman, J. N. Howard, M. L. Oxholm, Astrophys. J. 113, 268 (1951).
    [CrossRef]
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    [CrossRef]

1981 (4)

P. L. Roney, F. D. Findlay, A. Blanchard, M. W. P. Cann, R. W. Nicholls, Opt. Lett. 6, 151 (1981).
[CrossRef] [PubMed]

A. Goldman, J. Reid, L. S. Rothman, Geophys. Res. Lett. 8, 77 (1981).
[CrossRef]

J. B. Pollack, O. B. Toon, D. Wiedman, Geophys. Res. Lett. 8, 26 (1981).
[CrossRef]

L. S. Rothman, Appl. Opt. 20, 791 (1981).
[CrossRef] [PubMed]

1980 (2)

C. B. Farmer, O. F. Raper, B. D. Robbins, R. A. Roth, C. Muller, J. Geophys. Res. 85, 1621 (1980).
[CrossRef]

J. H. Park, J. M. Russell, M. A. H. Smith, Appl. Opt. 19, 2132 (1980).
[CrossRef] [PubMed]

1979 (4)

1978 (1)

J. Susskind, J. E. Searl, J. Quant. Spectrosc. Radiat. Transfer 19, 195 (1978).
[CrossRef]

1977 (3)

1976 (1)

K. H. Hinkle, T. G. Barnes, D. L. Lambert, R. Beer, Astrophys. J. 210, L141 (1976).
[CrossRef]

1975 (1)

J. P. Boissy, A. Valentin, Ph. Cardinet, M. L. Claude, A. Henry, J. Mol. Spectrosc. 57, 391 (1975).
[CrossRef]

1971 (1)

D. T. Sheng, G. E. Ewing, J. Chem. Phys. 55, 5425 (1971).
[CrossRef]

1969 (2)

D. E. Burch, D. A. Gryvnak, R. R. Patty, C. E. Bartky, J. Opt. Soc. Am. 59, 267 (1969).
[CrossRef]

L. D. Gray, A. T. Young, J. Quant. Spectrosc. Radiat. Transfer 9, 569 (1969).
[CrossRef]

1966 (2)

M. M. Shapiro, H. P. Gush, Can. J. Phys. 44, 949 (1966).
[CrossRef]

C. B. Farmer, J. T. Houghton, Nature 209, 1341 (1966).
[CrossRef]

1965 (1)

S. P. Reddy, C. W. Cho, Can. J. Phys. 43, 2331 (1965).
[CrossRef]

1964 (1)

B. H. Winters, S. Silverman, W. S. Benedict, J. Quant. Spectrosc. Radiat. Transfer 4, 527 (1964).
[CrossRef]

1951 (1)

J. H. Shaw, R. M. Chapman, J. N. Howard, M. L. Oxholm, Astrophys. J. 113, 268 (1951).
[CrossRef]

1940 (1)

L. Spitzer, Phys. Rev. 58, 348 (1940).
[CrossRef]

Barnes, T. G.

K. H. Hinkle, T. G. Barnes, D. L. Lambert, R. Beer, Astrophys. J. 210, L141 (1976).
[CrossRef]

Bartky, C. E.

Beer, R.

K. H. Hinkle, T. G. Barnes, D. L. Lambert, R. Beer, Astrophys. J. 210, L141 (1976).
[CrossRef]

Benedict, W. S.

B. H. Winters, S. Silverman, W. S. Benedict, J. Quant. Spectrosc. Radiat. Transfer 4, 527 (1964).
[CrossRef]

Bernstein, L. S.

Blanchard, A.

P. L. Roney, F. D. Findlay, A. Blanchard, M. W. P. Cann, R. W. Nicholls, Opt. Lett. 6, 151 (1981).
[CrossRef] [PubMed]

M. W. P. Cann, R. W. Nicholls, P. L. Roney, F. D. Findlay, A. Blanchard, “Spectral Line Profiles in the 4.3 Micron Band of Carbon Dioxide,” in Digest of Topical Meeting on Spectroscopy in Support of Atmospheric Measurements, Sarasota, Fla. (Optical Society of America, Washington, 1980), paper WP16-1.

Boissy, J. P.

J. P. Boissy, A. Valentin, Ph. Cardinet, M. L. Claude, A. Henry, J. Mol. Spectrosc. 57, 391 (1975).
[CrossRef]

Bower, L. R.

Burch, D. E.

D. E. Burch, D. A. Gryvnak, R. R. Patty, C. E. Bartky, J. Opt. Soc. Am. 59, 267 (1969).
[CrossRef]

D. E. Burch, D. A. Gryvnak, J. D. Pembrook, “Investigation of the Absorption of Infrared Radiation by Atmospheric Gases: Water, Nitrogen, Nitrous Oxide,” AFCRL-71-0124, Hanscom AFB, Mass. (1971).

Cann, M. W. P.

P. L. Roney, F. D. Findlay, A. Blanchard, M. W. P. Cann, R. W. Nicholls, Opt. Lett. 6, 151 (1981).
[CrossRef] [PubMed]

M. W. P. Cann, R. W. Nicholls, P. L. Roney, F. D. Findlay, A. Blanchard, “Spectral Line Profiles in the 4.3 Micron Band of Carbon Dioxide,” in Digest of Topical Meeting on Spectroscopy in Support of Atmospheric Measurements, Sarasota, Fla. (Optical Society of America, Washington, 1980), paper WP16-1.

Cardinet, Ph.

J. P. Boissy, A. Valentin, Ph. Cardinet, M. L. Claude, A. Henry, J. Mol. Spectrosc. 57, 391 (1975).
[CrossRef]

Chahine, M. T.

Chapman, R. M.

J. H. Shaw, R. M. Chapman, J. N. Howard, M. L. Oxholm, Astrophys. J. 113, 268 (1951).
[CrossRef]

Cho, C. W.

S. P. Reddy, C. W. Cho, Can. J. Phys. 43, 2331 (1965).
[CrossRef]

Claude, M. L.

J. P. Boissy, A. Valentin, Ph. Cardinet, M. L. Claude, A. Henry, J. Mol. Spectrosc. 57, 391 (1975).
[CrossRef]

Conant, J. A.

Eng, R. S.

R. S. Eng, A. W. Mantz, J. Mol. Spectrosc. 74, 331 (1979).
[CrossRef]

Ewing, G. E.

D. T. Sheng, G. E. Ewing, J. Chem. Phys. 55, 5425 (1971).
[CrossRef]

Farmer, C. B.

C. B. Farmer, O. F. Raper, B. D. Robbins, R. A. Roth, C. Muller, J. Geophys. Res. 85, 1621 (1980).
[CrossRef]

C. B. Farmer, J. T. Houghton, Nature 209, 1341 (1966).
[CrossRef]

Findlay, F. D.

P. L. Roney, F. D. Findlay, A. Blanchard, M. W. P. Cann, R. W. Nicholls, Opt. Lett. 6, 151 (1981).
[CrossRef] [PubMed]

M. W. P. Cann, R. W. Nicholls, P. L. Roney, F. D. Findlay, A. Blanchard, “Spectral Line Profiles in the 4.3 Micron Band of Carbon Dioxide,” in Digest of Topical Meeting on Spectroscopy in Support of Atmospheric Measurements, Sarasota, Fla. (Optical Society of America, Washington, 1980), paper WP16-1.

Goldman, A.

A. Goldman, J. Reid, L. S. Rothman, Geophys. Res. Lett. 8, 77 (1981).
[CrossRef]

Gray, L. D.

L. D. Gray, A. T. Young, J. Quant. Spectrosc. Radiat. Transfer 9, 569 (1969).
[CrossRef]

Gryvnak, D. A.

D. E. Burch, D. A. Gryvnak, R. R. Patty, C. E. Bartky, J. Opt. Soc. Am. 59, 267 (1969).
[CrossRef]

D. E. Burch, D. A. Gryvnak, J. D. Pembrook, “Investigation of the Absorption of Infrared Radiation by Atmospheric Gases: Water, Nitrogen, Nitrous Oxide,” AFCRL-71-0124, Hanscom AFB, Mass. (1971).

Gush, H. P.

M. M. Shapiro, H. P. Gush, Can. J. Phys. 44, 949 (1966).
[CrossRef]

Hayes, D. S.

C. P. Rinsland, R. F. Wing, D. S. Hayes, in preparation.

Henry, A.

J. P. Boissy, A. Valentin, Ph. Cardinet, M. L. Claude, A. Henry, J. Mol. Spectrosc. 57, 391 (1975).
[CrossRef]

Hinkle, K. H.

K. H. Hinkle, T. G. Barnes, D. L. Lambert, R. Beer, Astrophys. J. 210, L141 (1976).
[CrossRef]

Houghton, J. T.

C. B. Farmer, J. T. Houghton, Nature 209, 1341 (1966).
[CrossRef]

Howard, J. N.

J. H. Shaw, R. M. Chapman, J. N. Howard, M. L. Oxholm, Astrophys. J. 113, 268 (1951).
[CrossRef]

Kaplan, L. D.

L. D. Kaplan, M. T. Chahine, J. Susskind, J. E. Searl, Appl. Opt. 16, 322 (1977).
[CrossRef] [PubMed]

L. D. Kaplan, J. Susskind, R. J. Zander, “Determination of CO2 Line Shape from Balloon-Based Solar Spectra,” in Extended Abstracts, International Radiation Symposium, Fort Collins, Colo. (American Meteorological Society, Boston, 1980), p. 109.

Kivel, B.

B. Kivel, “Theoretical Studies for Improving Atmospheric Transmittance Models Used in Analysis of Satellite Infrared Data,” AVCO Everett Research Lab., Inc., report prepared for National Earth Satellite Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce (1978).

Lambert, D. L.

K. H. Hinkle, T. G. Barnes, D. L. Lambert, R. Beer, Astrophys. J. 210, L141 (1976).
[CrossRef]

Mantz, A. W.

R. S. Eng, A. W. Mantz, J. Mol. Spectrosc. 74, 331 (1979).
[CrossRef]

Mo, T.

J. Susskind, T. Mo, “Atmospheric Absorption Spectra near 2200 cm−1 and 2400 cm−1,” in Preprint Volume, Third Conference on Atmospheric Radiation (American Meteorological Society, Boston, 1978), p. 219.

Muller, C.

C. B. Farmer, O. F. Raper, B. D. Robbins, R. A. Roth, C. Muller, J. Geophys. Res. 85, 1621 (1980).
[CrossRef]

Nicholls, R. W.

P. L. Roney, F. D. Findlay, A. Blanchard, M. W. P. Cann, R. W. Nicholls, Opt. Lett. 6, 151 (1981).
[CrossRef] [PubMed]

M. W. P. Cann, R. W. Nicholls, P. L. Roney, F. D. Findlay, A. Blanchard, “Spectral Line Profiles in the 4.3 Micron Band of Carbon Dioxide,” in Digest of Topical Meeting on Spectroscopy in Support of Atmospheric Measurements, Sarasota, Fla. (Optical Society of America, Washington, 1980), paper WP16-1.

Oxholm, M. L.

J. H. Shaw, R. M. Chapman, J. N. Howard, M. L. Oxholm, Astrophys. J. 113, 268 (1951).
[CrossRef]

Park, J. H.

J. H. Park, J. M. Russell, M. A. H. Smith, Appl. Opt. 19, 2132 (1980).
[CrossRef] [PubMed]

J. H. Park, C. P. Rinsland, M. A. H. Smith, J. M. Russell, in preparation.

Patty, R. R.

Pembrook, J. D.

D. E. Burch, D. A. Gryvnak, J. D. Pembrook, “Investigation of the Absorption of Infrared Radiation by Atmospheric Gases: Water, Nitrogen, Nitrous Oxide,” AFCRL-71-0124, Hanscom AFB, Mass. (1971).

Pollack, J. B.

J. B. Pollack, O. B. Toon, D. Wiedman, Geophys. Res. Lett. 8, 26 (1981).
[CrossRef]

Raper, O. F.

C. B. Farmer, O. F. Raper, B. D. Robbins, R. A. Roth, C. Muller, J. Geophys. Res. 85, 1621 (1980).
[CrossRef]

Reddy, S. P.

S. P. Reddy, C. W. Cho, Can. J. Phys. 43, 2331 (1965).
[CrossRef]

Reid, J.

A. Goldman, J. Reid, L. S. Rothman, Geophys. Res. Lett. 8, 77 (1981).
[CrossRef]

Rinsland, C. P.

R. F. Wing, C. P. Rinsland, Astron. J. 84, 1235 (1979).
[CrossRef]

C. P. Rinsland, R. F. Wing, to be submitted to Astrophys. J.

J. H. Park, C. P. Rinsland, M. A. H. Smith, J. M. Russell, in preparation.

C. P. Rinsland, R. F. Wing, D. S. Hayes, in preparation.

Robbins, B. D.

C. B. Farmer, O. F. Raper, B. D. Robbins, R. A. Roth, C. Muller, J. Geophys. Res. 85, 1621 (1980).
[CrossRef]

Robertson, D. C.

Roney, P. L.

P. L. Roney, F. D. Findlay, A. Blanchard, M. W. P. Cann, R. W. Nicholls, Opt. Lett. 6, 151 (1981).
[CrossRef] [PubMed]

M. W. P. Cann, R. W. Nicholls, P. L. Roney, F. D. Findlay, A. Blanchard, “Spectral Line Profiles in the 4.3 Micron Band of Carbon Dioxide,” in Digest of Topical Meeting on Spectroscopy in Support of Atmospheric Measurements, Sarasota, Fla. (Optical Society of America, Washington, 1980), paper WP16-1.

Roth, R. A.

C. B. Farmer, O. F. Raper, B. D. Robbins, R. A. Roth, C. Muller, J. Geophys. Res. 85, 1621 (1980).
[CrossRef]

Rothman, L. S.

A. Goldman, J. Reid, L. S. Rothman, Geophys. Res. Lett. 8, 77 (1981).
[CrossRef]

L. S. Rothman, Appl. Opt. 20, 791 (1981).
[CrossRef] [PubMed]

Russell, J. M.

J. H. Park, J. M. Russell, M. A. H. Smith, Appl. Opt. 19, 2132 (1980).
[CrossRef] [PubMed]

J. H. Park, C. P. Rinsland, M. A. H. Smith, J. M. Russell, in preparation.

Sandford, B. P.

Searl, J. E.

J. Susskind, J. E. Searl, J. Quant. Spectrosc. Radiat. Transfer 19, 195 (1978).
[CrossRef]

L. D. Kaplan, M. T. Chahine, J. Susskind, J. E. Searl, Appl. Opt. 16, 322 (1977).
[CrossRef] [PubMed]

J. Susskind, J. E. Searl, J. Quant. Spectrosc. Radiat. Transfer 18, 581 (1977).
[CrossRef]

Shapiro, M. M.

M. M. Shapiro, H. P. Gush, Can. J. Phys. 44, 949 (1966).
[CrossRef]

Shaw, J. H.

J. H. Shaw, R. M. Chapman, J. N. Howard, M. L. Oxholm, Astrophys. J. 113, 268 (1951).
[CrossRef]

Sheng, D. T.

D. T. Sheng, G. E. Ewing, J. Chem. Phys. 55, 5425 (1971).
[CrossRef]

Silverman, S.

B. H. Winters, S. Silverman, W. S. Benedict, J. Quant. Spectrosc. Radiat. Transfer 4, 527 (1964).
[CrossRef]

Smith, M. A. H.

J. H. Park, J. M. Russell, M. A. H. Smith, Appl. Opt. 19, 2132 (1980).
[CrossRef] [PubMed]

J. H. Park, C. P. Rinsland, M. A. H. Smith, J. M. Russell, in preparation.

Sojka, B. Z.

Spitzer, L.

L. Spitzer, Phys. Rev. 58, 348 (1940).
[CrossRef]

Susskind, J.

J. Susskind, J. E. Searl, J. Quant. Spectrosc. Radiat. Transfer 19, 195 (1978).
[CrossRef]

J. Susskind, J. E. Searl, J. Quant. Spectrosc. Radiat. Transfer 18, 581 (1977).
[CrossRef]

L. D. Kaplan, M. T. Chahine, J. Susskind, J. E. Searl, Appl. Opt. 16, 322 (1977).
[CrossRef] [PubMed]

J. Susskind, T. Mo, “Atmospheric Absorption Spectra near 2200 cm−1 and 2400 cm−1,” in Preprint Volume, Third Conference on Atmospheric Radiation (American Meteorological Society, Boston, 1978), p. 219.

L. D. Kaplan, J. Susskind, R. J. Zander, “Determination of CO2 Line Shape from Balloon-Based Solar Spectra,” in Extended Abstracts, International Radiation Symposium, Fort Collins, Colo. (American Meteorological Society, Boston, 1980), p. 109.

Toon, O. B.

J. B. Pollack, O. B. Toon, D. Wiedman, Geophys. Res. Lett. 8, 26 (1981).
[CrossRef]

Toth, R. A.

Valentin, A.

J. P. Boissy, A. Valentin, Ph. Cardinet, M. L. Claude, A. Henry, J. Mol. Spectrosc. 57, 391 (1975).
[CrossRef]

Watkins, W. R.

White, K. O.

Wiedman, D.

J. B. Pollack, O. B. Toon, D. Wiedman, Geophys. Res. Lett. 8, 26 (1981).
[CrossRef]

Wing, R. F.

R. F. Wing, C. P. Rinsland, Astron. J. 84, 1235 (1979).
[CrossRef]

C. P. Rinsland, R. F. Wing, to be submitted to Astrophys. J.

C. P. Rinsland, R. F. Wing, D. S. Hayes, in preparation.

Winters, B. H.

B. H. Winters, S. Silverman, W. S. Benedict, J. Quant. Spectrosc. Radiat. Transfer 4, 527 (1964).
[CrossRef]

Young, A. T.

L. D. Gray, A. T. Young, J. Quant. Spectrosc. Radiat. Transfer 9, 569 (1969).
[CrossRef]

Zander, R. J.

L. D. Kaplan, J. Susskind, R. J. Zander, “Determination of CO2 Line Shape from Balloon-Based Solar Spectra,” in Extended Abstracts, International Radiation Symposium, Fort Collins, Colo. (American Meteorological Society, Boston, 1980), p. 109.

Appl. Opt. (6)

Astron. J. (1)

R. F. Wing, C. P. Rinsland, Astron. J. 84, 1235 (1979).
[CrossRef]

Astrophys. J. (2)

J. H. Shaw, R. M. Chapman, J. N. Howard, M. L. Oxholm, Astrophys. J. 113, 268 (1951).
[CrossRef]

K. H. Hinkle, T. G. Barnes, D. L. Lambert, R. Beer, Astrophys. J. 210, L141 (1976).
[CrossRef]

Can. J. Phys. (2)

S. P. Reddy, C. W. Cho, Can. J. Phys. 43, 2331 (1965).
[CrossRef]

M. M. Shapiro, H. P. Gush, Can. J. Phys. 44, 949 (1966).
[CrossRef]

Geophys. Res. Lett. (2)

J. B. Pollack, O. B. Toon, D. Wiedman, Geophys. Res. Lett. 8, 26 (1981).
[CrossRef]

A. Goldman, J. Reid, L. S. Rothman, Geophys. Res. Lett. 8, 77 (1981).
[CrossRef]

J. Chem. Phys. (1)

D. T. Sheng, G. E. Ewing, J. Chem. Phys. 55, 5425 (1971).
[CrossRef]

J. Geophys. Res. (1)

C. B. Farmer, O. F. Raper, B. D. Robbins, R. A. Roth, C. Muller, J. Geophys. Res. 85, 1621 (1980).
[CrossRef]

J. Mol. Spectrosc. (2)

R. S. Eng, A. W. Mantz, J. Mol. Spectrosc. 74, 331 (1979).
[CrossRef]

J. P. Boissy, A. Valentin, Ph. Cardinet, M. L. Claude, A. Henry, J. Mol. Spectrosc. 57, 391 (1975).
[CrossRef]

J. Opt. Soc. Am. (1)

J. Quant. Spectrosc. Radiat. Transfer (4)

L. D. Gray, A. T. Young, J. Quant. Spectrosc. Radiat. Transfer 9, 569 (1969).
[CrossRef]

J. Susskind, J. E. Searl, J. Quant. Spectrosc. Radiat. Transfer 19, 195 (1978).
[CrossRef]

J. Susskind, J. E. Searl, J. Quant. Spectrosc. Radiat. Transfer 18, 581 (1977).
[CrossRef]

B. H. Winters, S. Silverman, W. S. Benedict, J. Quant. Spectrosc. Radiat. Transfer 4, 527 (1964).
[CrossRef]

Nature (1)

C. B. Farmer, J. T. Houghton, Nature 209, 1341 (1966).
[CrossRef]

Opt. Lett. (1)

Phys. Rev. (1)

L. Spitzer, Phys. Rev. 58, 348 (1940).
[CrossRef]

Other (8)

D. E. Burch, D. A. Gryvnak, J. D. Pembrook, “Investigation of the Absorption of Infrared Radiation by Atmospheric Gases: Water, Nitrogen, Nitrous Oxide,” AFCRL-71-0124, Hanscom AFB, Mass. (1971).

M. W. P. Cann, R. W. Nicholls, P. L. Roney, F. D. Findlay, A. Blanchard, “Spectral Line Profiles in the 4.3 Micron Band of Carbon Dioxide,” in Digest of Topical Meeting on Spectroscopy in Support of Atmospheric Measurements, Sarasota, Fla. (Optical Society of America, Washington, 1980), paper WP16-1.

J. Susskind, T. Mo, “Atmospheric Absorption Spectra near 2200 cm−1 and 2400 cm−1,” in Preprint Volume, Third Conference on Atmospheric Radiation (American Meteorological Society, Boston, 1978), p. 219.

B. Kivel, “Theoretical Studies for Improving Atmospheric Transmittance Models Used in Analysis of Satellite Infrared Data,” AVCO Everett Research Lab., Inc., report prepared for National Earth Satellite Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce (1978).

C. P. Rinsland, R. F. Wing, to be submitted to Astrophys. J.

C. P. Rinsland, R. F. Wing, D. S. Hayes, in preparation.

L. D. Kaplan, J. Susskind, R. J. Zander, “Determination of CO2 Line Shape from Balloon-Based Solar Spectra,” in Extended Abstracts, International Radiation Symposium, Fort Collins, Colo. (American Meteorological Society, Boston, 1980), p. 109.

J. H. Park, C. P. Rinsland, M. A. H. Smith, J. M. Russell, in preparation.

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Figures (2)

Fig. 1
Fig. 1

Comparison of a stratospheric transmittance spectrum obtained from balloon observations (float altitude 37 km) with synthetic monochromatic continuum transmittances. Observed spectrum (resolution 0.13 cm−1) was derived from the point-by-point ratio of a solar-occultation spectrum (mean geometric tangent altitude 21.8 km) to a high-sun spectrum. Dashed curve shows transmittances calculated for N2 absorption alone, while the smooth solid curves correspond to transmittances calculated for N2 continuum absorption and sub-Lorentzian far-wing absorption by CO2 (see text). Location of the ν312C16O2R-branch band head and several of the stronger lines of the S-branch of the N2 (1,0) quadrupole spectrum are marked.

Fig. 2
Fig. 2

Absorption coefficients for continuous absorption by pure CO2 at 230 K. Curves correspond to different far-wing line shapes (see text).

Tables (1)

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Table I Observed and Calculated Continuum Transmittances

Equations (2)

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τ ν ( N 2 ) = k ν , eff ( N 2 ) ρ 2 l ,
κ ν = S π α χ ( ν - ν 0 ) ( ν - ν 0 ) 2 + α 2 ,

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