Celestial polarization patterns during twilight
Cronin, Thomas W. ; Warrant, Eric LU
and Greiner, Birgit
LU
(2006)
In Applied Optics
45(22).
p.5582-5589
- Abstract
- Scattering of sunlight produces patterns of partially linearly polarized light in the sky throughout the day, and similar patterns appear at night when the Moon is bright. We studied celestial polarization patterns during the period of twilight, when the Sun is below the horizon, determining the degree and orientation of the polarized-light field and its changes before sunrise and after sunset. During twilight, celestial polarized light occurs in a wide band stretching perpendicular to the location of the hidden Sun and reaching typical degrees of polarization near 80% at wavelengths >600 nm. In the tropics, this pattern appears similar to 1 h before local sunrise or disappears similar to 1 h after local sunset (within 10 min after the... (More)
- Scattering of sunlight produces patterns of partially linearly polarized light in the sky throughout the day, and similar patterns appear at night when the Moon is bright. We studied celestial polarization patterns during the period of twilight, when the Sun is below the horizon, determining the degree and orientation of the polarized-light field and its changes before sunrise and after sunset. During twilight, celestial polarized light occurs in a wide band stretching perpendicular to the location of the hidden Sun and reaching typical degrees of polarization near 80% at wavelengths >600 nm. In the tropics, this pattern appears similar to 1 h before local sunrise or disappears similar to 1 h after local sunset (within 10 min after the onset of astronomical twilight at dawn, or before its end at dusk) and extends with little change through the entire twilight period. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/399660
- author
- Cronin, Thomas W.
; Warrant, Eric
LU
and Greiner, Birgit
LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Optics
- volume
- 45
- issue
- 22
- pages
- 5582 - 5589
- publisher
- Optical Society of America
- external identifiers
-
- pmid:16855654
- wos:000239411400012
- scopus:33749832285
- ISSN
- 2155-3165
- language
- English
- LU publication?
- yes
- id
- 9fd7f345-17b7-42e9-87f6-b4f670bcbc0b (old id 399660)
- alternative location
- http://www.opticsinfobase.org/abstract.cfm?URI=ao-45-22-5582
- date added to LUP
- 2016-04-01 12:15:07
- date last changed
- 2022-01-27 01:00:56
@article{9fd7f345-17b7-42e9-87f6-b4f670bcbc0b,
abstract = {{Scattering of sunlight produces patterns of partially linearly polarized light in the sky throughout the day, and similar patterns appear at night when the Moon is bright. We studied celestial polarization patterns during the period of twilight, when the Sun is below the horizon, determining the degree and orientation of the polarized-light field and its changes before sunrise and after sunset. During twilight, celestial polarized light occurs in a wide band stretching perpendicular to the location of the hidden Sun and reaching typical degrees of polarization near 80% at wavelengths >600 nm. In the tropics, this pattern appears similar to 1 h before local sunrise or disappears similar to 1 h after local sunset (within 10 min after the onset of astronomical twilight at dawn, or before its end at dusk) and extends with little change through the entire twilight period.}},
author = {{Cronin, Thomas W. and Warrant, Eric and Greiner, Birgit}},
issn = {{2155-3165}},
language = {{eng}},
number = {{22}},
pages = {{5582--5589}},
publisher = {{Optical Society of America}},
series = {{Applied Optics}},
title = {{Celestial polarization patterns during twilight}},
url = {{http://www.opticsinfobase.org/abstract.cfm?URI=ao-45-22-5582}},
volume = {{45}},
year = {{2006}},
}