Note
FAU Electronic Theses and Dissertations Collection
Member of
Contributors
Publisher
Florida Atlantic University
Date Issued
1971
Description
A high resolution study of nighttime and daytime absorption of the sodium n2
line was made at Florida Atlantic University, Boca Raton, Florida (26°22'N
latitude, 80°6 1W longitude) from October 1970 to April 1971 using a Pepsios
(polyetalon pressure scanning interferometric optical spectrometer). Line
scans were taken with photoelectric detection of the sodium D^2 line using
sunlight in the daytime and moonlight in the nighttime. A computer analysis
of the line scans determined the terrestrial free sodium abundance and the
related uncertainty. The average monthly daytime sodium abundance for the
winter was 5.32 ± 1.0 x 10^9 atoms/cm^2. Nighttime averages made by several
procedures yielded sodium abundances for the winter months in the range
5.2 - 6.2 ± 4.0 x 10^9 atoms/cm^2. Separate averages made of the evening and
morning moonlight traces were apparently affected in different ways by
cumulus clouds or by sodium nightglow. This uncertainty of interpretation
along with the generally poor signal to noise ratio for the moonlight data
suggests that a low degree of confidence be given to the apparent agreement
in average sodium abundances derived from these sunlight and moonlight
measurements.
line was made at Florida Atlantic University, Boca Raton, Florida (26°22'N
latitude, 80°6 1W longitude) from October 1970 to April 1971 using a Pepsios
(polyetalon pressure scanning interferometric optical spectrometer). Line
scans were taken with photoelectric detection of the sodium D^2 line using
sunlight in the daytime and moonlight in the nighttime. A computer analysis
of the line scans determined the terrestrial free sodium abundance and the
related uncertainty. The average monthly daytime sodium abundance for the
winter was 5.32 ± 1.0 x 10^9 atoms/cm^2. Nighttime averages made by several
procedures yielded sodium abundances for the winter months in the range
5.2 - 6.2 ± 4.0 x 10^9 atoms/cm^2. Separate averages made of the evening and
morning moonlight traces were apparently affected in different ways by
cumulus clouds or by sodium nightglow. This uncertainty of interpretation
along with the generally poor signal to noise ratio for the moonlight data
suggests that a low degree of confidence be given to the apparent agreement
in average sodium abundances derived from these sunlight and moonlight
measurements.
Language
Type
Form
Extent
64 p.
Subject (Topical)
Identifier
13437
Additional Information
FAU Electronic Theses and Dissertations Collection
Thesis (M.S.)--Florida Atlantic University, 1971.
Charles E. Schmidt College of Science
Date Backup
1971
Date Text
1971
Date Issued (EDTF)
1971
Extension
FAU
FAU
admin_unit="FAU01", ingest_id="ing1508", creator="staff:fcllz", creation_date="2007-07-19 01:05:08", modified_by="staff:fcllz", modification_date="2011-01-06 13:08:48"
IID
FADT13437
Issuance
monographic
Organizations
Attributed name: Florida Atlantic University
Person Preferred Name
SIDES, VICTORIA LOUISE.
Graduate College
Physical Description
64 p.
application/pdf
Title Plain
COMPARISON OF NIGHTTIME AND DAYTIME ABSORPTION OF THE SODIUM D(2) LINE
Use and Reproduction
Copyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
http://rightsstatements.org/vocab/InC/1.0/
Origin Information
1971
monographic
Boca Raton, Fla.
Florida Atlantic University
Physical Location
Florida Atlantic University Libraries
Place
Boca Raton, Fla.
Sub Location
Digital Library
Title
COMPARISON OF NIGHTTIME AND DAYTIME ABSORPTION OF THE SODIUM D(2) LINE
Other Title Info
COMPARISON OF NIGHTTIME AND DAYTIME ABSORPTION OF THE SODIUM D(2) LINE