Variabilidade do perfil vertical de ozônio sobre a região metropolitana de Manaus: uma abordagem por satélite
This work deals with the variability of the vertical ozone profile in the metropolitan region of Manaus. This study aimed to study the temporal variability of vertical ozone profile in order to evaluate the possible relationship between variability and large-scale climate variability associated w...
| Autor principal: | Calderaro, Gisele Lopes |
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| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Instituto Nacional de Pesquisas da Amazônia - INPA
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/12635 http://lattes.cnpq.br/0990437807639968 |
| Resumo: |
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This work deals with the variability of the vertical ozone profile in the metropolitan region of
Manaus. This study aimed to study the temporal variability of vertical ozone profile in order to
evaluate the possible relationship between variability and large-scale climate variability
associated with the El Niño - Southern Oscillation (ENSO) and the Oscillation Almost Biennial
(OQB ). also intends to to investigate the effects of weather and fire outbreaks in the behavior
of the concentration of tropospheric ozone over the study area. For this, daily estimates of ozone
profile were used, inferred by satellite AQUA for the period 2003 to 2014. The statistical
analysis used were averaging, deviations (anomalies), variance, Pearson's coefficient and
wavelet transform. The results show negative linear correlation between ozone and ENSO
index. In La Niña years, positive anomalies of ozone were found, and El Niño years was
observed negative anomalies of ozone. As for the ozone correlation analysis with OQB, the
Pearson coefficient is positive, showing that for positive / negative values of OQB, positive /
negative anomalies are observed in ozone over the metropolitan region of Manaus. In the
troposphere about 80% of the variability of the vertical ozone profile is associated with high
frequency variations, or annual and semiannual which are probably related to the amount of
solar radiation with the seasons change, with burned and thus relates with carbon monoxide
profile over the study area. The remaining 20% of ozone variability at low levels, in turn, are
correlated to the almost two-year and interannual fluctuations (ENSO and OQB). By
withdrawing the annual cycle, it is observed that the semianual scale, 18% of the variance
occurs near the surface and approximately 10% above 30 hPa. In biennial range about 15% of
the variance contained in the total variation is observed in the lower troposphere and 25% is
seen in the stratosphere above 30hPa and analyzing the interannual scale about 5% of the
variability is contained in the full band and is most significant at the level 120 hPa. |