Impacts of convection, chemistry, and forest clearing on biogenic volatile organic compounds over the Amazon
Abstract The Amazon rainforest is the largest source of biogenic volatile organic compounds (BVOCs) to the atmosphere. To understand the distribution and chemistry of BVOCs, airborne and ground-based measurements of BVOCs are conducted over the Amazon rainforest in the CAFE-Brazil campaign (December...
Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-05-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-59953-2 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849325823670091776 |
|---|---|
| author | Nidhi Tripathi Bianca E. Krumm Achim Edtbauer Akima Ringsdorf Nijing Wang Matthias Kohl Ryan Vella Luiz A. T. Machado Andrea Pozzer Jos Lelieveld Jonathan Williams |
| author_facet | Nidhi Tripathi Bianca E. Krumm Achim Edtbauer Akima Ringsdorf Nijing Wang Matthias Kohl Ryan Vella Luiz A. T. Machado Andrea Pozzer Jos Lelieveld Jonathan Williams |
| author_sort | Nidhi Tripathi |
| collection | DOAJ |
| description | Abstract The Amazon rainforest is the largest source of biogenic volatile organic compounds (BVOCs) to the atmosphere. To understand the distribution and chemistry of BVOCs, airborne and ground-based measurements of BVOCs are conducted over the Amazon rainforest in the CAFE-Brazil campaign (December 2022–January 2023), including diel (24-hour) profiles between 0.3-14 km for isoprene, its oxidation products, and total monoterpenes. Although daytime deep convective transport of BVOCs is rendered ineffective by photochemical loss, nocturnal deep-convection exports considerable BVOC quantities to high altitudes, extending the chemical influence of the rainforest to the upper troposphere, and priming it for rapid organic photochemistry and particle formation at dawn. After contrasting pristine and deforested areas, a BVOC sensitivity analysis is performed using a chemistry-climate model. Here we show that reducing BVOC emissions, decreased upper tropospheric ozone, increased lower tropospheric hydroxyl radicals, shortened the methane lifetime, with the net effect of enhancing climate warming through ozone and aerosols. |
| format | Article |
| id | doaj-art-b909f268f4524fcea43f6c5a705c2d47 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-b909f268f4524fcea43f6c5a705c2d472025-08-20T03:48:18ZengNature PortfolioNature Communications2041-17232025-05-0116111010.1038/s41467-025-59953-2Impacts of convection, chemistry, and forest clearing on biogenic volatile organic compounds over the AmazonNidhi Tripathi0Bianca E. Krumm1Achim Edtbauer2Akima Ringsdorf3Nijing Wang4Matthias Kohl5Ryan Vella6Luiz A. T. Machado7Andrea Pozzer8Jos Lelieveld9Jonathan Williams10Department of Atmospheric Chemistry, Max Planck Institute for ChemistryDepartment of Atmospheric Chemistry, Max Planck Institute for ChemistryDepartment of Atmospheric Chemistry, Max Planck Institute for ChemistryDepartment of Atmospheric Chemistry, Max Planck Institute for ChemistryDepartment of Atmospheric Chemistry, Max Planck Institute for ChemistryDepartment of Atmospheric Chemistry, Max Planck Institute for ChemistryDepartment of Atmospheric Chemistry, Max Planck Institute for ChemistryInstitute of Physics, University of Sao PauloDepartment of Atmospheric Chemistry, Max Planck Institute for ChemistryDepartment of Atmospheric Chemistry, Max Planck Institute for ChemistryDepartment of Atmospheric Chemistry, Max Planck Institute for ChemistryAbstract The Amazon rainforest is the largest source of biogenic volatile organic compounds (BVOCs) to the atmosphere. To understand the distribution and chemistry of BVOCs, airborne and ground-based measurements of BVOCs are conducted over the Amazon rainforest in the CAFE-Brazil campaign (December 2022–January 2023), including diel (24-hour) profiles between 0.3-14 km for isoprene, its oxidation products, and total monoterpenes. Although daytime deep convective transport of BVOCs is rendered ineffective by photochemical loss, nocturnal deep-convection exports considerable BVOC quantities to high altitudes, extending the chemical influence of the rainforest to the upper troposphere, and priming it for rapid organic photochemistry and particle formation at dawn. After contrasting pristine and deforested areas, a BVOC sensitivity analysis is performed using a chemistry-climate model. Here we show that reducing BVOC emissions, decreased upper tropospheric ozone, increased lower tropospheric hydroxyl radicals, shortened the methane lifetime, with the net effect of enhancing climate warming through ozone and aerosols.https://doi.org/10.1038/s41467-025-59953-2 |
| spellingShingle | Nidhi Tripathi Bianca E. Krumm Achim Edtbauer Akima Ringsdorf Nijing Wang Matthias Kohl Ryan Vella Luiz A. T. Machado Andrea Pozzer Jos Lelieveld Jonathan Williams Impacts of convection, chemistry, and forest clearing on biogenic volatile organic compounds over the Amazon Nature Communications |
| title | Impacts of convection, chemistry, and forest clearing on biogenic volatile organic compounds over the Amazon |
| title_full | Impacts of convection, chemistry, and forest clearing on biogenic volatile organic compounds over the Amazon |
| title_fullStr | Impacts of convection, chemistry, and forest clearing on biogenic volatile organic compounds over the Amazon |
| title_full_unstemmed | Impacts of convection, chemistry, and forest clearing on biogenic volatile organic compounds over the Amazon |
| title_short | Impacts of convection, chemistry, and forest clearing on biogenic volatile organic compounds over the Amazon |
| title_sort | impacts of convection chemistry and forest clearing on biogenic volatile organic compounds over the amazon |
| url | https://doi.org/10.1038/s41467-025-59953-2 |
| work_keys_str_mv | AT nidhitripathi impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT biancaekrumm impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT achimedtbauer impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT akimaringsdorf impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT nijingwang impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT matthiaskohl impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT ryanvella impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT luizatmachado impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT andreapozzer impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT joslelieveld impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon AT jonathanwilliams impactsofconvectionchemistryandforestclearingonbiogenicvolatileorganiccompoundsovertheamazon |