@Article{BrescianiBBPSBLP:2018:ReLaDe,
author = "Bresciani, Caroline and Bittencourt, Gabriela Dornelles and
Bageston, Jos{\'e} Valentin and Pinheiro, Damaris Kirsch and
Schuch, Nelson Jorge and Bencherif, Hassan and Leme, Neusa Maria
Paes and Peres, Lucas Vaz",
affiliation = "{Universidade Federal de Santa Maria (UFSM)} and {Universidade
Federal de Santa Maria (UFSM)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Universidade Federal de Santa
Maria (UFSM} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {University of Reunion Island} and {Instituto Nacional
de Pesquisas Espaciais (INPE)} and {Universidade Federal do Oeste
do Par{\'a}}",
title = "Report of a large depletion in the ozone layer over southern
Brazil and Uruguay by using multi-instrumental data",
journal = "Annales Geophysicae",
year = "2018",
volume = "36",
number = "2",
pages = "405--413",
month = "Mar.",
keywords = "Atmospheric composition and structure (middle atmosphere –
composition and chemistry, instruments and techniques).",
abstract = "Ozone is one of the chemical compounds that form part of the
atmosphere. It plays a key role in the stratosphere where the
ozone layer is located and absorbs large amounts of ultraviolet
radiation. However, during austral spring (AugustNovember), there
is a massive destruction of the ozone layer, which is known as the
Antarctic ozone hole. This phenomenon decreases ozone
concentration in that region, which may affect other regions in
addition to the polar one. This anomaly may also reach
midlatitudes; hence, it is called the secondary effect of the
Antarctic ozone hole. Therefore, this study aims to identify the
passage of an ozone secondary effect (OSE) event in the region of
the city of Santa Maria RS (29.68\◦ S, 53.80\◦ W) by
means of a multi-instrumental analysis using the satellites
TIMED/SABER, AURA/MLS, and OMI-ERS. Measurements were made in
S{\~a}o Martinho da Serra/RS Brazil (29.53\◦ S,
53.85\◦ W) using a sounding balloon and a Brewer
Spectrophotometer. In addition, the present study aims to describe
and analyse the influence that this stratospheric ozone reduction
has on temperatures presented by these instruments, including data
collected through the radio occultation technique. The event was
first identified by the AURA/MLS satellite on 19 October 2016 over
Uruguay. This reduction in ozone concentration was found by
comparing the climatology for the years 19961998 for the state of
Rio Grande do Sul, which is close to Uruguay. This event was
already observed in Santa Maria/RS-Brazil on 20 October 2016 as
presented by the OMI-ERS satellite and the Brewer
Spectrophotometer. Moreover, a significant decrease was reported
by the TIMED/SABER satellite in Uruguay. On 21 October, the poor
ozone air mass was still over the region of interest, according to
the OMI-ERS satellite, data from the sounding balloon launched in
Santa Maria/RS-Brazil, and measurements made by the AURA/MLS
satellite. Furthermore, the influence of ozone on the stratosphere
temperature was observed during this period. Despite a continuous
decrease detected in height, the temperature should have followed
an increasing pattern in the stratospheric layer. Finally, the
TIMED/SABER and OMI-ERS satellites showed that on 23 October, the
air mass with low ozone concentration was moving away, and its
layer, as well as the temperature, in the stratosphere was
re-established.",
doi = "10.5194/angeo-36-405-2018",
url = "http://dx.doi.org/10.5194/angeo-36-405-2018",
issn = "0992-7689",
language = "en",
targetfile = "bresciani_report.pdf",
urlaccessdate = "27 abr. 2024"
}