Abstract

The Halogen Occultation Experiment (HALOE) conducted satellite solar occultation measurements for 14 years ending on 21 November 2005. HALOE contained a calibration wheel, which included three neutral density filters that were used to examine response linearity through a combination of ground and on-orbit measurements. Although measurement uncertainties preclude a confident assessment of the true extent of nonlinearity, the on-orbit data lead to the conclusion that any existing response nonlinearity has changed by less than 2% over the mission lifetime. This conclusion eliminates a potentially significant uncertainty when using HALOE data for studies of long-term atmospheric trends.

© 2007 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |

  1. J. M. Russell III, L. L. Gordley, J. H. Park, S. R. Drayson, W. D. Hesketh, R. J. Cicerone, A. F. Tuck, J. E. Frederick, J. E. Harries, and P. J. Crutzen, "The halogen occultation experiment," J. Geophys. Res. 98, 10777-10797 (1993).
    [CrossRef]
  2. E. Theocharous, J. Ishii, and N. P. Fox, "Absolute linearity measurements on HgCdTe detectors in the infrared region," Appl. Opt. 43, 4182-4188 (2004).
    [CrossRef] [PubMed]
  3. G. Eppeldauer, A. L. Migdall, and C. L. Cromer, "Characterization of a high sensitivity composite silicon bolometer," Metrologia 30, 317-320 (1993).
    [CrossRef]
  4. L. L. Gordley, M. E. Hervig, J. M. Russell III, C. Fish, G. J. Paxton, J. C. Burton, and M. J. McHugh, "Sounding the upper mesosphere using broadband solar occultation: the SOFIE experiment," Proc. SPIE 6297, 62970G (2006).
    [CrossRef]
  5. R. L. Kurucz, "The solar spectrum: atlases and line identifications, laboratory and astronomical high resolution spectra," in Proceedings of the Astronomical Society of the Pacific Conference Series 81, A. J. Sauval, R. Blomme, and N. Grevesse, eds. (Astronomical Society of the Pacific, 1995), pp. 17-31.

2006 (1)

L. L. Gordley, M. E. Hervig, J. M. Russell III, C. Fish, G. J. Paxton, J. C. Burton, and M. J. McHugh, "Sounding the upper mesosphere using broadband solar occultation: the SOFIE experiment," Proc. SPIE 6297, 62970G (2006).
[CrossRef]

2004 (1)

1993 (2)

G. Eppeldauer, A. L. Migdall, and C. L. Cromer, "Characterization of a high sensitivity composite silicon bolometer," Metrologia 30, 317-320 (1993).
[CrossRef]

J. M. Russell III, L. L. Gordley, J. H. Park, S. R. Drayson, W. D. Hesketh, R. J. Cicerone, A. F. Tuck, J. E. Frederick, J. E. Harries, and P. J. Crutzen, "The halogen occultation experiment," J. Geophys. Res. 98, 10777-10797 (1993).
[CrossRef]

Appl. Opt. (1)

J. Geophys. Res. (1)

J. M. Russell III, L. L. Gordley, J. H. Park, S. R. Drayson, W. D. Hesketh, R. J. Cicerone, A. F. Tuck, J. E. Frederick, J. E. Harries, and P. J. Crutzen, "The halogen occultation experiment," J. Geophys. Res. 98, 10777-10797 (1993).
[CrossRef]

Metrologia (1)

G. Eppeldauer, A. L. Migdall, and C. L. Cromer, "Characterization of a high sensitivity composite silicon bolometer," Metrologia 30, 317-320 (1993).
[CrossRef]

Proc. SPIE (1)

L. L. Gordley, M. E. Hervig, J. M. Russell III, C. Fish, G. J. Paxton, J. C. Burton, and M. J. McHugh, "Sounding the upper mesosphere using broadband solar occultation: the SOFIE experiment," Proc. SPIE 6297, 62970G (2006).
[CrossRef]

Other (1)

R. L. Kurucz, "The solar spectrum: atlases and line identifications, laboratory and astronomical high resolution spectra," in Proceedings of the Astronomical Society of the Pacific Conference Series 81, A. J. Sauval, R. Blomme, and N. Grevesse, eds. (Astronomical Society of the Pacific, 1995), pp. 17-31.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (2)

Fig. 1
Fig. 1

(a) Response versus fractional radiance of theoretical linear and nonlinear systems. (b) Nonlinear response term characterized by f ( V M ) = 1 0.1 I , which corresponds to 10% nonlinearity at I max . (c) Simulated calibration data using an attenuator with τ ND = 0.8 and the nonlinear measurement system depicted in (a) and (b).

Fig. 2
Fig. 2

Measurements of the HALOE 80% ND filter from ground calibration compared to on-orbit measurements in 1991 and 2005. The ground data response was determined by scaling the 1991 on-orbit response by the calculated ratio of 2000 K SEB radiance over solar radiance.

Tables (5)

Tables Icon

Table 1 HALOE Channel Characteristics

Tables Icon

Table 2 HALOE Detector Response Levels

Tables Icon

Table 3 Calibration Results for the HALOE 80% ND Filter

Tables Icon

Table 4 Calibration Results for the HALOE 60% ND Filter

Tables Icon

Table 5 Calibration Results for the HALOE 20% ND Filter

Equations (10)

Equations on this page are rendered with MathJax. Learn more.

V L = R I ,
τ M = V A / V M .
τ M = K 1 + K 2 V M ,
f ( V M ) = 1 K V M ,
K = K 2 ( K 1 + K 2 V M ¯ ) ( 1 K 1 ) ,
D = D 0 B C M ,
C M = A I ( D 0 B C M ) ,
C M = C L ( 1 B C M / D 0 ) .
V M = V L ( 1 G V M ) ,
f ( V M ) = 1 G V M ,

Metrics