| Full text | |
| Author(s): |
Ribeiro, Igor Oliveira
[1]
;
Andreoli, Rita Valeria
[2]
;
Kayano, Mary Toshie
[3]
;
de Sousa, Thaiane Rodrigues
[4]
;
Medeiros, Adan Sady
[1]
;
Guimaraes, Patricia Costa
[1]
;
Barbosa, Cybelli G. G.
[5]
;
Godoi, Ricardo H. M.
[6]
;
Martin, Scot T.
[7]
;
Ferreira de Souza, Rodrigo Augusto
[2]
Total Authors: 10
|
| Affiliation: | [1] INPA UEA, CLIAMB, Postgrad Program Climate & Environm, Av Andre Araujo 2936, Campus 2, BR-69060001 Manaus, Amazonas - Brazil
[2] Amazonas State Univ, Super Sch Technol, Av Darcy Vargas 1200, Parque 10 Novembro, BR-69065020 Manaus, Amazonas - Brazil
[3] Natl Inst Space Res, Ctr Weather Forecasting & Climate Res, Av Astronautas 1758, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[4] INPA, PPG ECO, Postgrad Program Ecol, Av Andre Araujo 97, Campus 3, BR-69060000 Manaus, Amazonas - Brazil
[5] UFPR, Postgrad Program Water Resources & Environm Engn, Rua Evaristo FF da Costa, Campus Polytech Ctr, BR-80050540 Curitiba, Parana - Brazil
[6] Univ Fed Parana, Environm Engn Dept, Rua Francisco H dos Santos 100, BR-81531990 Curitiba, Parana - Brazil
[7] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 - USA
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | Science of The Total Environment; v. 624, p. 509-516, MAY 15 2018. |
| Web of Science Citations: | 5 |
| Abstract | |
The present study examines the spatiotemporal variability and interrelations of the atmospheric methane (CH4), carbon monoxide (CO) and biomass burning (BB) outbreaks retrieved from satellite data over the Amazon region during the 2003-2012 period. In the climatological context, we found consistent seasonal cycles of BB outbreaks and CO in the Amazon, both variables showing a peak during the dry season. The dominant CO variability mode features the largest positive loadings in the southern Amazon, and describes the interannual CO variations related to BB outbreaks along the deforestation arc during the dry season. In line with CO variability and BB outbreaks, the results show strong correspondence with the spatiotemporal variability of CH4 in the southern Amazon during years of intense drought. Indeed, the areas with the largest positive CH4 anomalies in southern Amazon overlap the areas with high BB outbreaks and positive CO anomalies. The analyses also showed that high (low) BB outbreaks in the southern Amazon occur during dry (wet) years. In consequence, the interannual climate variability modulates the BB outbreaks in the southern Amazon, which in turn have considerable impacts on CO and CH4 interannual variability in the region. Therefore, the BB outbreaks might play a major role in modulating the CH4 and CO variations, at least in the southern Amazon. This study also provides a comparison between the estimate of satellite and aircraft measurements for the CH4 over the southern Amazon, which indicates relatively small differences from the aircraft measurements in the lower troposphere, with errors ranging from 0.18% to 1.76%. (C) 2017 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 06/53277-6 - Prognostic studies of the use of the Aqua satellite in the inference of the concentration of carbon monoxide in the atmosphere |
| Grantee: | Simone Marilene Sievert da Costa Coelho |
| Support Opportunities: | Regular Research Grants |