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Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes./
Author:	Zhao, Xiaoyi.
Description:	1 online resource (234 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.
Subject:	Atmospheric sciences. -
Online resource:	click for full text (PQDT)
ISBN:	9780355457520

Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes.
Zhao, Xiaoyi.

Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes. - 1 online resource (234 pages)

Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.

Thesis (Ph.D.)--University of Toronto (Canada), 2017.

Includes bibliographical references

Two UV-visible differential absorption spectroscopy (DOAS) ground-based spectrometers (GBSs) were installed at the Polar Environment Atmospheric Research Laboratory (PEARL) in the Canadian High Arctic (80.1° N, 86.4° W). These two instruments have been used to measure stratospheric trace gases since 1999 and 2006 respectively. In 2010 and 2014, two solar-tracking systems were integrated with the GBSs to make tropospheric trace gas measurements.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355457520Subjects--Topical Terms:

1179392
Atmospheric sciences.
Index Terms--Genre/Form:

554714
Electronic books.

Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes.
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100 1 $a Zhao, Xiaoyi. $3 1185670
245 1 0 $a Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes.
264 0 $c 2017
300 $a 1 online resource (234 pages)
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500 $a Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.
500 $a Adviser: Kimberly Strong.
502 $a Thesis (Ph.D.)--University of Toronto (Canada), 2017.
504 $a Includes bibliographical references
520 $a Two UV-visible differential absorption spectroscopy (DOAS) ground-based spectrometers (GBSs) were installed at the Polar Environment Atmospheric Research Laboratory (PEARL) in the Canadian High Arctic (80.1° N, 86.4° W). These two instruments have been used to measure stratospheric trace gases since 1999 and 2006 respectively. In 2010 and 2014, two solar-tracking systems were integrated with the GBSs to make tropospheric trace gas measurements.
520 $a One goal of this work was to study surface ozone depletion events (ODEs) in the Arctic, using data from the GBSs. The measurements of ozone and BrO, combined with model results, indicate that both high wind/blowing snow and low wind/stable boundary layer are favorable environmental conditions for bromine explosion events, and in some cases, the combination of these two conditions will extend the lifetime of a bromine explosion event. In addition, during a strong surface ODE (ozone VMR < 1 ppbv), BrO concentration can be significantly controlled by the ozone concentration. The HDO depletions observed during two blowing-snow-induced ODEs were found to be weaker than those modelled using pure Rayleigh fractionation. This work provided evidence of a blowing-snow sublimation process, which is a key step in producing bromine-enriched sea-salt aerosol.
520 $a This work also evaluated the performance of the recently developed Pandora spectrometer by comparing it with the Brewer world reference triad. Statistical analysis was used to determine the quality of the total colum ozone (TCO), with all Pandora and Brewer instruments shown to meet the Global Atmosphere Watch requirement for a precision better than 1%. However, there is a 1% seasonal difference and a 3% bias between the standard Pandora and Brewer TCO data, which is related to the temperature dependence and difference in ozone cross sections. A statistical model was developed to correct Pandora data, reducing the seasonal difference to 0.25% and the bias to 0.04%.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Atmospheric sciences. $3 1179392
650 4 $a Physics. $3 564049
650 4 $a Environmental science. $3 1179128
655 7 $a Electronic books. $2 local $3 554714
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690 $a 0768
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Toronto (Canada). $b Physics. $3 1182571
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10270947 $z click for full text (PQDT)