skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Intermediate-scale horizontal isoprene concentrations in the near-canopy forest atmosphere and implications for emission heterogeneity

Abstract

The emissions, deposition, and chemistry of volatile organic compounds (VOCs) are thought to be influenced by underlying landscape heterogeneity at intermediate horizontal scales of several hundred meters across different forest subtypes within a tropical forest. Quantitative observations and scientific understanding at these scales, however, remain lacking, in large part due to a historical absence of canopy access and suitable observational approaches. Herein, horizontal heterogeneity in VOC concentrations in the near-canopy atmosphere was examined by sampling from an unmanned aerial vehicle (UAV) flown horizontally several hundred meters over the plateau and slope forests in central Amazonia during the morning and early afternoon periods of the wet season of 2018. Unlike terpene concentrations, the isoprene concentrations in the near-canopy atmosphere over the plateau forest were 60% greater than those over the slope forest. A gradient transport model constrained by the data suggests that isoprene emissions differed by 220 to 330% from these forest subtypes, which is in contrast to a 0% difference implemented in most present-day biosphere emissions models (i.e., homogeneous emissions). Finally, quantifying VOC concentrations, emissions, and other processes at intermediate horizontal scales is essential for understanding the ecological and Earth system roles of VOCs and representing them in climate andmore » air quality models.« less

Authors:
 [1];  [2];  [1];  [1];  [1];  [3];  [3];  [1];  [4]; ORCiD logo [5];  [6];  [7];  [8];  [1]; ORCiD logo [2]
  1. National Inst. of Amazonian Research, Amazonas (Brazil); Amazonas State Univ. (Brazil)
  2. Harvard Univ., Cambridge, MA (United States)
  3. Amazonas State Univ. (Brazil)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Univ. of California, Irvine, CA (United States); Hong Kong Univ. of Science and Technology (China)
  6. Univ. of California, Irvine, CA (United States)
  7. Colby College, Waterville, ME (United States)
  8. Federal Univ. of Technology, Paraná (Brazil)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Brazilian Federal Agency for Support and Evaluation of Graduate Education; Brazilian National Council for Scientific and Technological Development; Amazonas State Research Foundation; National Science Foundation (NSF)
OSTI Identifier:
1581366
Grant/Contract Number:  
AC02-05CH11231; 88881.187481/2018-01; 062.00568/2014; 062.00491/2016; AGS-1829025; AGS-1829074
Resource Type:
Accepted Manuscript
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 116; Journal Issue: 39; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; isoprene emissions; landscape heterogeneity; intermediate horizontal scales; Amazon tropical; forest; UAV measurements

Citation Formats

Batista, Carla E., Ye, Jianhuai, Ribeiro, Igor O., Guimarães, Patricia C., Medeiros, Adan S. S., Barbosa, Rafael G., Oliveira, Rafael L., Duvoisin, Sergio, Jardine, Kolby J., Gu, Dasa, Guenther, Alex B., McKinney, Karena A., Martins, Leila D., Souza, Rodrigo A. F., and Martin, Scot T. Intermediate-scale horizontal isoprene concentrations in the near-canopy forest atmosphere and implications for emission heterogeneity. United States: N. p., 2019. Web. https://doi.org/10.1073/pnas.1904154116.
Batista, Carla E., Ye, Jianhuai, Ribeiro, Igor O., Guimarães, Patricia C., Medeiros, Adan S. S., Barbosa, Rafael G., Oliveira, Rafael L., Duvoisin, Sergio, Jardine, Kolby J., Gu, Dasa, Guenther, Alex B., McKinney, Karena A., Martins, Leila D., Souza, Rodrigo A. F., & Martin, Scot T. Intermediate-scale horizontal isoprene concentrations in the near-canopy forest atmosphere and implications for emission heterogeneity. United States. https://doi.org/10.1073/pnas.1904154116
Batista, Carla E., Ye, Jianhuai, Ribeiro, Igor O., Guimarães, Patricia C., Medeiros, Adan S. S., Barbosa, Rafael G., Oliveira, Rafael L., Duvoisin, Sergio, Jardine, Kolby J., Gu, Dasa, Guenther, Alex B., McKinney, Karena A., Martins, Leila D., Souza, Rodrigo A. F., and Martin, Scot T. Mon . "Intermediate-scale horizontal isoprene concentrations in the near-canopy forest atmosphere and implications for emission heterogeneity". United States. https://doi.org/10.1073/pnas.1904154116. https://www.osti.gov/servlets/purl/1581366.
@article{osti_1581366,
title = {Intermediate-scale horizontal isoprene concentrations in the near-canopy forest atmosphere and implications for emission heterogeneity},
author = {Batista, Carla E. and Ye, Jianhuai and Ribeiro, Igor O. and Guimarães, Patricia C. and Medeiros, Adan S. S. and Barbosa, Rafael G. and Oliveira, Rafael L. and Duvoisin, Sergio and Jardine, Kolby J. and Gu, Dasa and Guenther, Alex B. and McKinney, Karena A. and Martins, Leila D. and Souza, Rodrigo A. F. and Martin, Scot T.},
abstractNote = {The emissions, deposition, and chemistry of volatile organic compounds (VOCs) are thought to be influenced by underlying landscape heterogeneity at intermediate horizontal scales of several hundred meters across different forest subtypes within a tropical forest. Quantitative observations and scientific understanding at these scales, however, remain lacking, in large part due to a historical absence of canopy access and suitable observational approaches. Herein, horizontal heterogeneity in VOC concentrations in the near-canopy atmosphere was examined by sampling from an unmanned aerial vehicle (UAV) flown horizontally several hundred meters over the plateau and slope forests in central Amazonia during the morning and early afternoon periods of the wet season of 2018. Unlike terpene concentrations, the isoprene concentrations in the near-canopy atmosphere over the plateau forest were 60% greater than those over the slope forest. A gradient transport model constrained by the data suggests that isoprene emissions differed by 220 to 330% from these forest subtypes, which is in contrast to a 0% difference implemented in most present-day biosphere emissions models (i.e., homogeneous emissions). Finally, quantifying VOC concentrations, emissions, and other processes at intermediate horizontal scales is essential for understanding the ecological and Earth system roles of VOCs and representing them in climate and air quality models.},
doi = {10.1073/pnas.1904154116},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 39,
volume = 116,
place = {United States},
year = {2019},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Improved simulation of isoprene oxidation chemistry with the ECHAM5/MESSy chemistry-climate model: lessons from the GABRIEL airborne field campaign
journal, January 2008

  • Butler, T. M.; Taraborrelli, D.; Brühl, C.
  • Atmospheric Chemistry and Physics, Vol. 8, Issue 16
  • DOI: 10.5194/acp-8-4529-2008

An Overview of Small Unmanned Aerial Vehicles for Air Quality Measurements: Present Applications and Future Prospectives
journal, July 2016

  • Villa, Tommaso; Gonzalez, Felipe; Miljievic, Branka
  • Sensors, Vol. 16, Issue 7
  • DOI: 10.3390/s16071072

Hyperdominance in the Amazonian Tree Flora
journal, October 2013


Diel and seasonal changes of biogenic volatile organic compounds within and above an Amazonian rainforest
journal, January 2015

  • Yáñez-Serrano, A. M.; Nölscher, A. C.; Williams, J.
  • Atmospheric Chemistry and Physics, Vol. 15, Issue 6
  • DOI: 10.5194/acp-15-3359-2015

Biogenic volatile organic compounds in the Earth system
journal, July 2009


Multiple functions of inducible plant volatiles
journal, November 2004


Variation in potential for isoprene emissions among Neotropical forest sites
journal, May 2004


A sampler for atmospheric volatile organic compounds by copter unmanned aerial vehicles
journal, January 2019

  • McKinney, Karena A.; Wang, Daniel; Ye, Jianhuai
  • Atmospheric Measurement Techniques, Vol. 12, Issue 6
  • DOI: 10.5194/amt-12-3123-2019

Chemical segregation by heterogeneous emissions
journal, April 2007


Global data set of biogenic VOC emissions calculated by the MEGAN model over the last 30 years
journal, January 2014

  • Sindelarova, K.; Granier, C.; Bouarar, I.
  • Atmospheric Chemistry and Physics, Vol. 14, Issue 17
  • DOI: 10.5194/acp-14-9317-2014

The Model of Emissions of Gases and Aerosols from Nature version 2.1 (MEGAN2.1): an extended and updated framework for modeling biogenic emissions
journal, January 2012

  • Guenther, A. B.; Jiang, X.; Heald, C. L.
  • Geoscientific Model Development, Vol. 5, Issue 6
  • DOI: 10.5194/gmd-5-1471-2012

Amazon plant diversity revealed by a taxonomically verified species list
journal, September 2017

  • Cardoso, Domingos; Särkinen, Tiina; Alexander, Sara
  • Proceedings of the National Academy of Sciences, Vol. 114, Issue 40
  • DOI: 10.1073/pnas.1706756114

Pervasive alteration of tree communities in undisturbed Amazonian forests
journal, March 2004

  • Laurance, William F.; Oliveira, Alexandre A.; Laurance, Susan G.
  • Nature, Vol. 428, Issue 6979
  • DOI: 10.1038/nature02383

Composição e diversidade florístico-estrutural de um hectare de floresta densa de terra firme na Amazônia Central, Amazonas, Brasil
journal, December 2008


An international network to monitor the structure, composition and dynamics of Amazonian forests (RAINFOR)
journal, February 2002


Green Leaf Volatile Emissions during High Temperature and Drought Stress in a Central Amazon Rainforest
journal, September 2015


Evaluation of regional isoprene emission factors and modeled fluxes in California
journal, January 2016

  • Misztal, Pawel K.; Avise, Jeremy C.; Karl, Thomas
  • Atmospheric Chemistry and Physics, Vol. 16, Issue 15
  • DOI: 10.5194/acp-16-9611-2016

Reserva Florestal Ducke: Diversidade e ComposiÇÃO da Flora Vascular
journal, January 1994

  • Ribeiro, José Eduardo Lahoz S.; Nelson, Bruce Walker; Silva, Marlene Freitas da
  • Acta Amazonica, Vol. 24, Issue 1-2
  • DOI: 10.1590/1809-43921994242030

Effects of turbulence and heterogeneous emissions on photochemically active species in the convective boundary layer
journal, March 2000

  • Krol, Maarten C.; Molemaker, M. Jeroen; de Arellano, Jordi Vilà Guerau
  • Journal of Geophysical Research: Atmospheres, Vol. 105, Issue D5
  • DOI: 10.1029/1999JD900958

Vertical distance from drainage drives floristic composition changes in an Amazonian rainforest
journal, April 2013


Reynolds-Averaged Navier–Stokes Equations for Turbulence Modeling
journal, June 2009

  • Alfonsi, Giancarlo
  • Applied Mechanics Reviews, Vol. 62, Issue 4
  • DOI: 10.1115/1.3124648

Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature)
journal, January 2006

  • Guenther, A.; Karl, T.; Harley, P.
  • Atmospheric Chemistry and Physics, Vol. 6, Issue 11
  • DOI: 10.5194/acp-6-3181-2006

On the segregation of chemical species in a clear boundary layer over heterogeneous land surfaces
journal, January 2011

  • Ouwersloot, H. G.; Vilà-Guerau de Arellano, J.; van Heerwaarden, C. C.
  • Atmospheric Chemistry and Physics, Vol. 11, Issue 20
  • DOI: 10.5194/acp-11-10681-2011

Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature)
journal, January 2006

  • Guenther, A.; Karl, T.; Harley, P.
  • Atmospheric Chemistry and Physics Discussions, Vol. 6, Issue 1
  • DOI: 10.5194/acpd-6-107-2006

The Model of Emissions of Gases and Aerosols from Nature version 2.1 (MEGAN2.1): an extended and updated framework for modeling biogenic emissions
journal, January 2012

  • Guenther, A. B.; Jiang, X.; Heald, C. L.
  • Geoscientific Model Development Discussions, Vol. 5, Issue 2
  • DOI: 10.5194/gmdd-5-1503-2012