Abstract
The solar extreme ultraviolet (EUV) irradiance, the dominant global energy source for Earth’s atmosphere above 100 km, is not known accurately enough for many studies of the upper atmosphere. During the absence of direct solar EUV irradiance measurements from satellites, the solar EUV irradiance is often estimated at the 30–50% uncertainty level using both proxies of the solar irradiance and earlier solar EUV irradiance measurements, primarily from the Air Force Geophysics Laboratory (now Phillips Laboratory) rockets and Atmospheric Explorer (AE) instruments. Our sounding rocket measurements during solar cycle 22 include solar EUV irradiances below 120 nm with 0.2 nm spectral resolution, far ultraviolet (FUV) airglow spectra below 160 nm, and solar soft X-ray (XUV) images at 17.5 nm. Compared to the earlier observations, these rocket experiments provide a more accurate absolute measurement of the solar EUV irradiance, because these instruments are calibrated at the National Institute of Standards and Technology (NIST) with a radiometric uncertainty of about 8%. These more accurate sounding-rocket measurements suggest revisions of the previous reference AE-E spectra by as much as a factor of 2 at some wavelengths. Our sounding-rocket flights during the past several years (1988—1994) also provide information about solar EUV variability during solar cycle 22.
Paper presented at the SOLERS22 International Workshop, held at the National Solar Observatory, Sacramento Peak, Sunspot, New Mexico, U.S.A., June 17–21, 1996.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bailey, S. M., Woods, T. N., Canfield, L. R., Korde, R., Barth, C. A., Solomon, S. C., and Rottman, G. J.: 1998, Solar Phys., submitted.
Chandra, S., Lean, J. L., White, O. R., Prinz, D. K., Rottman, G. J., and Brueckner, G. E.: 1995, Geophys. Res. Letters 22, 2481.
Donnelly, R. F. and Pope, J. H.: 1973, Tech. Rep. ERL 276-SEL 25, NOAA, Boulder.
Freeman, F. F. and Jones, B. B.: 1970, Solar Phys. 15, 288.
Hinteregger, H. E., Fukui, K., and Gilson, B. R.: 1981, Geophys. Res. Letters 8, 1147.
Judge, P. G., Woods, T. N., Brekke, P., and Rottman, G. J.: 1995, Astrophys. J. 455, L85.
Lean, J. L.: 1987, J. Geophys. Res. 92, 839.
London, J., Rottman, G. J., Woods, T. N., and Wu, F.: 1993, Geophys. Res. Letters 20, 1315.
Kreplin, R. W. and Horan, D. M.: 1992, in R. F. Donnelly (ed.), Proceedings of the Workshop on the Solar Electromagnetic Radiation Study for Solar Cycle 22, National Technical Information Service, Springfield, VA, p. 405.
Melissinos, A. C.: 1966, Experiments in Modern Physics, Academic Press, San Diego, p. 191.
Richards, P. G., Fennelly, J. A., and Torr, D. G.: 1994, J. Geophys. Res. 99, 8981.
Rottman, G. J., Woods, T. N., and Sparn, T. P.: 1993, J. Geophys. Res. 98, 10667.
Simon, P. C. and Tobiska, W. K.: 1991, J. Geomagn. Geoelectr. Suppl. 43, 823.
Tobiska, W. K.: 1993, J. Geophys. Res. 98, 18879.
Tobiska, W. K. and Eparvier, F.: 1997, Solar Phys., this issue.
Torr, M. R. and Torr, D. G.: 1985, J. Geophys. Res. 90, 6675.
Van Tassel, W., McMahon, J., and Heroux, L.: 1981, Environ. Sounding Rocket Res. Pap. 737, AFGL-TR-8 1-0111, Hanscom AFB.
Woods, T. N. and Rottman, G. J.: 1990, J. Geophys. Res. 95, 6227.
Woods, T. N. and Rottman, G. J.: 1997, J. Geophys. Res., in press.
Woods, T. N., Ucker, G. J., and Rottman, G. J.: 1993, J. Geophys. Res. 98, 10 679.
Woods, T. N., Rottman, G. J., Bailey, S., and Solomon, S. C.: 1994a, Optical Eng. 33, 438.
Woods, T. N., Wrigley, R. T., Rottman, G. J., and Haring, R. E.: 1994b, Appl. Optics 33, 4273.
Woods, T. N., Prinz, D. K., London, J., Rottman, G. J., Crane, P. C., Cebula, R. P., Hilsenrath, E., Brueckner, G. E., Andrews, M. D., White, O. R., Van Hoosier, M. E., Floyd, L. E., Herring, L. C., Knapp, B. G., Pankratz, C. K., and Reiser, P. A.: 1996, J. Geophys. Res. 101, 9541.
Woods, T., Ogawa, H., Tobiska, K., and Farnik, E.: 1997, Proceedings of the SOLERS-22 1996 Workshop, Kluwer Academic Publishers, Dordrecht, in press.
Worden, J. R.: 1996, A Three Component Proxy Model for the Solar Far Ultraviolet Irradiance, University of Colorado dissertation, Boulder.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1998 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Woods, T.N., Rottman, G.J., Bailey, S.M., Solomon, S.C., Worden, J.R. (1998). Solar Extreme Ultraviolet Irradiance Measurements During Solar Cycle 22. In: Pap, J.M., Fröhlich, C., Ulrich, R.K. (eds) Solar Electromagnetic Radiation Study for Solar Cycle 22. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5000-2_10
Download citation
DOI: https://doi.org/10.1007/978-94-011-5000-2_10
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6099-8
Online ISBN: 978-94-011-5000-2
eBook Packages: Springer Book Archive