OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 9 — Mar. 20, 1998
  • pp: 1486–1488

Solar Corona Caused by Juniper Pollen in Texas

Forrest M. Mims  »View Author Affiliations


Applied Optics, Vol. 37, Issue 9, pp. 1486-1488 (1998)
http://dx.doi.org/10.1364/AO.37.001486


View Full Text Article

Acrobat PDF (202 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Coronas are colorful, concentric rings centered on a bright light such as the Sun, the Moon, or even a streetlamp. Coronas are most commonly caused by water droplets or ice particles of relatively uniform size. Observers in Finland have reported spectacular clear-sky coronas caused by pollen grains. A clear-sky corona in central Texas occurred during the peak of the juniper pollinating season. The aerosol optical thickness at each of three wavelengths was highest when the corona was most prominent. Photographic measurements of the corona infer a particle diameter of ~32.4 μm. Because juniper pollen grains have a diameter of from 22 to 30 μm, they are the aerosol most likely to have caused the corona.

© 1998 Optical Society of America

OCIS Codes
(010.1310) Atmospheric and oceanic optics : Atmospheric scattering
(280.1100) Remote sensing and sensors : Aerosol detection
(280.1310) Remote sensing and sensors : Atmospheric scattering
(290.1090) Scattering : Aerosol and cloud effects
(290.5850) Scattering : Scattering, particles

Citation
Forrest M. Mims, "Solar Corona Caused by Juniper Pollen in Texas," Appl. Opt. 37, 1486-1488 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-9-1486


Sort:  Author  |  Year  |  Journal  |  Reset

References

  1. K. Sassen, “Corona-producing cirrus cloud properties derived from polarization lidar and photographic analysis,” Appl. Opt. 30, 3421–3428 (1991).
  2. M. Riikonen and J. Ruoskanen, “Observations of vertically elliptical halos,” Appl. Opt. 33, 4537–4538 (1994).
  3. P. Parviainen, C. F. Bohren, and V. Mäkelä, “Vertical elliptical coronas caused by pollen,” Appl. Opt. 33, 4548–4562 (1994).
  4. E. Tränkle and B. Mielke, “Simulation and analysis of pollen coronas,” Appl. Opt. 33, 4552–4562 (1994).
  5. J. R. Meyer-Arendt, Introduction to Classical and Modern Optics (Prentice-Hall, Englewood Cliffs, N.J., 1972), pp. 354–355.
  6. E. Levetin, University of Tulsa, Tulsa, Oklahoma, Biol_el@centum.utulsa.edu (personal communication, 1997).
  7. M. Muilenberg, Harvard School of Public Health, mmuil@hohp.harvard.edu (personal communication, 1997).
  8. K. L. Coulson, Polarization and Intensity of Light in the Atmosphere (Deepak, Hampton, Va., 1988), p. 397.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited