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Studies of Atmospheric Ozone and Rel...

Zhao, Xiaoyi.

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

Record Type:	Electronic resources : Monograph/item
Title/Author:	Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes./
Author:	Zhao, Xiaoyi.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	234 p.
Notes:	Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.
Contained By:	Dissertation Abstracts International79-04B(E).
Subject:	Atmospheric sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10270947
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. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 234 p.

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

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

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.

ISBN: 9780355457520Subjects--Topical Terms:

3168354
Atmospheric sciences.

Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes.
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100 1 $a Zhao, Xiaoyi. $3 3346338
245 1 0 $a Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 234 p.
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.
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%.
590 $a School code: 0779.
650 4 $a Atmospheric sciences. $3 3168354
650 4 $a Physics. $3 516296
650 4 $a Environmental science. $3 677245
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710 2 $a University of Toronto (Canada). $b Physics. $3 3171865
773 0 $t Dissertation Abstracts International $g 79-04B(E).
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792 $a 2017
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10270947