Artigo

Dimethyl sulfide in the Amazon rain forest

Surface-to-atmosphere emissions of dimethyl sulfide (DMS) may impact global climate through the formation of gaseous sulfuric acid, which can yield secondary sulfate aerosols and contribute to new particle formation. While oceans are generally considered the dominant sources of DMS, a shortage of ec...

ver descrição completa

Autor principal: Jardine, Kolby J.
Outros Autores: Yáñez-Serrano, Ana Maria, Williams, Jonathan C., Kunert, Norbert, Jardine, Angela B., Taylor, Tyeen C., Abrell, Leif, Artaxo, Paulo, Guenther, Alex B., Hewitt, Nick, House, Emily R., Florentino, A. P., Manzi, Antônio Ocimar, Higuchi, Niro, Kesselmeier, Jürgen, Behrendt, Thomas, Veres, Patrick R., Derstroff, Bettina, Fuentes, José D., Martin, Scot T., Andreae, Meinrat O.
Grau: Artigo
Idioma: English
Publicado em: Global Biogeochemical Cycles 2020
Assuntos:
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/15969
id oai:repositorio:1-15969
recordtype dspace
spelling oai:repositorio:1-15969 Dimethyl sulfide in the Amazon rain forest Jardine, Kolby J. Yáñez-Serrano, Ana Maria Williams, Jonathan C. Kunert, Norbert Jardine, Angela B. Taylor, Tyeen C. Abrell, Leif Artaxo, Paulo Guenther, Alex B. Hewitt, Nick House, Emily R. Florentino, A. P. Manzi, Antônio Ocimar Higuchi, Niro Kesselmeier, Jürgen Behrendt, Thomas Veres, Patrick R. Derstroff, Bettina Fuentes, José D. Martin, Scot T. Andreae, Meinrat O. Air-soil Interaction Biogenic Emission Biogeochemistry Climate Feedback Dimethylsulfide Mixing Ratio Rainforest Soil Emission Spatio-temporal Analysis Sulfuric Acid Amazon Basin Surface-to-atmosphere emissions of dimethyl sulfide (DMS) may impact global climate through the formation of gaseous sulfuric acid, which can yield secondary sulfate aerosols and contribute to new particle formation. While oceans are generally considered the dominant sources of DMS, a shortage of ecosystem observations prevents an accurate analysis of terrestrial DMS sources. Using mass spectrometry, we quantified ambient DMS mixing ratios within and above a primary rainforest ecosystem in the central Amazon Basin in real-time (2010-2011) and at high vertical resolution (2013-2014). Elevated but highly variable DMS mixing ratios were observed within the canopy, showing clear evidence of a net ecosystem source to the atmosphere during both day and night in both the dry and wet seasons. Periods of high DMS mixing ratios lasting up to 8 h (up to 160 parts per trillion (ppt)) often occurred within the canopy and near the surface during many evenings and nights. Daytime gradients showed mixing ratios (up to 80 ppt) peaking near the top of the canopy as well as near the ground following a rain event. The spatial and temporal distribution of DMS suggests that ambient levels and their potential climatic impacts are dominated by local soil and plant emissions. A soil source was confirmed by measurements of DMS emission fluxes from Amazon soils as a function of temperature and soil moisture. Furthermore, light- and temperature-dependent DMS emissions were measured from seven tropical tree species. Our study has important implications for understanding terrestrial DMS sources and their role in coupled land-atmosphere climate feedbacks. © 2014. The Authors. 2020-05-21T20:06:17Z 2020-05-21T20:06:17Z 2015 Artigo https://repositorio.inpa.gov.br/handle/1/15969 10.1002/2014GB004969 en Volume 29, Número 1, Pags. 19-32 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Global Biogeochemical Cycles
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Air-soil Interaction
Biogenic Emission
Biogeochemistry
Climate Feedback
Dimethylsulfide
Mixing Ratio
Rainforest
Soil Emission
Spatio-temporal Analysis
Sulfuric Acid
Amazon Basin
spellingShingle Air-soil Interaction
Biogenic Emission
Biogeochemistry
Climate Feedback
Dimethylsulfide
Mixing Ratio
Rainforest
Soil Emission
Spatio-temporal Analysis
Sulfuric Acid
Amazon Basin
Jardine, Kolby J.
Dimethyl sulfide in the Amazon rain forest
topic_facet Air-soil Interaction
Biogenic Emission
Biogeochemistry
Climate Feedback
Dimethylsulfide
Mixing Ratio
Rainforest
Soil Emission
Spatio-temporal Analysis
Sulfuric Acid
Amazon Basin
description Surface-to-atmosphere emissions of dimethyl sulfide (DMS) may impact global climate through the formation of gaseous sulfuric acid, which can yield secondary sulfate aerosols and contribute to new particle formation. While oceans are generally considered the dominant sources of DMS, a shortage of ecosystem observations prevents an accurate analysis of terrestrial DMS sources. Using mass spectrometry, we quantified ambient DMS mixing ratios within and above a primary rainforest ecosystem in the central Amazon Basin in real-time (2010-2011) and at high vertical resolution (2013-2014). Elevated but highly variable DMS mixing ratios were observed within the canopy, showing clear evidence of a net ecosystem source to the atmosphere during both day and night in both the dry and wet seasons. Periods of high DMS mixing ratios lasting up to 8 h (up to 160 parts per trillion (ppt)) often occurred within the canopy and near the surface during many evenings and nights. Daytime gradients showed mixing ratios (up to 80 ppt) peaking near the top of the canopy as well as near the ground following a rain event. The spatial and temporal distribution of DMS suggests that ambient levels and their potential climatic impacts are dominated by local soil and plant emissions. A soil source was confirmed by measurements of DMS emission fluxes from Amazon soils as a function of temperature and soil moisture. Furthermore, light- and temperature-dependent DMS emissions were measured from seven tropical tree species. Our study has important implications for understanding terrestrial DMS sources and their role in coupled land-atmosphere climate feedbacks. © 2014. The Authors.
format Artigo
author Jardine, Kolby J.
author2 Yáñez-Serrano, Ana Maria
Williams, Jonathan C.
Kunert, Norbert
Jardine, Angela B.
Taylor, Tyeen C.
Abrell, Leif
Artaxo, Paulo
Guenther, Alex B.
Hewitt, Nick
House, Emily R.
Florentino, A. P.
Manzi, Antônio Ocimar
Higuchi, Niro
Kesselmeier, Jürgen
Behrendt, Thomas
Veres, Patrick R.
Derstroff, Bettina
Fuentes, José D.
Martin, Scot T.
Andreae, Meinrat O.
author2Str Yáñez-Serrano, Ana Maria
Williams, Jonathan C.
Kunert, Norbert
Jardine, Angela B.
Taylor, Tyeen C.
Abrell, Leif
Artaxo, Paulo
Guenther, Alex B.
Hewitt, Nick
House, Emily R.
Florentino, A. P.
Manzi, Antônio Ocimar
Higuchi, Niro
Kesselmeier, Jürgen
Behrendt, Thomas
Veres, Patrick R.
Derstroff, Bettina
Fuentes, José D.
Martin, Scot T.
Andreae, Meinrat O.
title Dimethyl sulfide in the Amazon rain forest
title_short Dimethyl sulfide in the Amazon rain forest
title_full Dimethyl sulfide in the Amazon rain forest
title_fullStr Dimethyl sulfide in the Amazon rain forest
title_full_unstemmed Dimethyl sulfide in the Amazon rain forest
title_sort dimethyl sulfide in the amazon rain forest
publisher Global Biogeochemical Cycles
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/15969
_version_ 1787144888772460544
score 11.671464