@Article{AlmeidaPacBarRosRol:2017:ExFlIn,
author = "Almeida, Rafael M. and Pacheco, Felipe Siqueira and Barros, Nathan
and Rosi, Emma and Roland, F{\'a}bio",
affiliation = "{Universidade Federal de Juiz de Fora (UFJF)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal
de Juiz de Fora (UFJF)} and {Universidade Federal de Juiz de Fora
(UFJF)} and {Universidade Federal de Juiz de Fora (UFJF)}",
title = "Extreme floods increase CO2 outgassing from a large Amazonian
river",
journal = "Limnology and Oceanography",
year = "2017",
volume = "62",
number = "3",
pages = "989--999",
month = "May",
abstract = "Large Amazonian rivers are characteristically subject to seasonal
floods. We examine how inundation extent affects the partial
pressure of carbon dioxide (pCO2) and CO2 outgassing in the
Madeira River, a large tributary to the Amazon River. We show data
from nine field campaigns performed between 2009 and 2011,
complemented with data from one additional campaign in April 2014
that is representative of the largest flood on record. Both the
pCO2 (range, 8359694 \μatm) and CO2 outgassing (range,
64112,253 mg C m\−2 d\−1) had large seasonal
variability (with peaks during high water), and fit exponential
relationships with water level. CO2 outgassing per unit area in
2014 was 50% higher than the other highest rate in our dataset.
Reconstruction of CO2 fluxes since 1968 indicates that
extreme-flood years outgas 20% more CO2 per unit area than years
without reported occurrence of extreme floods. Our findings
indicate a positive feedback between climate change, extreme
flooding, and CO2 outgassing from river water.",
doi = "10.1002/lno.10480",
url = "http://dx.doi.org/10.1002/lno.10480",
issn = "0024-3590",
language = "en",
targetfile = "almeida_extreme.pdf",
urlaccessdate = "27 abr. 2024"
}