Alex Guenther

Contact Information:

 

Education:

  • B.S   University of Puget Sound   1984   Biology, Computer Science minor
  • M.S.   Washington State University   1986   Environmental Engineering
  • Ph.D.   Washington State University   1989   Dept. of Civil & Environmental Engineering

 

Research Interests:

  • Phytogeography and biogeochemistry
  • Biosphere-atmosphere interactions
  • Developing and applying trace gas and aerosol flux measurement techniques
  • Understanding biological, chemical and physical controls of trace gas fluxes
  • Numerical modeling of chemical exchange between terrestrial ecosystems and the atmosphere
  • Impact of biogenic emissions, ecosystem uptake and fire emissions on atmospheric chemistry and sustainability

 

Community Service:

  • Associate Editor, Atmos. Chem. and Physics, Atmospheric Environment
  • Co-chair, IGBP-AIMES Global Emissions Inventory Activity (GEIA)
  • Co-chair, 2004 Gordon Conference on Biogenic Hydrocarbons in the Atmosphere
  • Lead author, NARSTO natural emissions assessment
  • Contributing author, IPCC third and fourth assessment reports
  • Mentor, NCAR Significant Opportunities in Atmospheric Research (SOARS) program
  • Mentor, Biosphere-Atmosphere Research and Training (BART) program
  • Member, NCAR-ESSL-ACD and NCAR-ESSL-TIIMES Management Committees

Selected Publications (55 of 110):

  • Baker, B., C. Johnson, C. Zhong-Tao, B. Jianhui, L. Qing-Jum, Y. Wang, A. Guenther, J. Greenberg, L. Klinger, O. S., A. Lintoc, and R. Rasmussen, Wet and dry season ecosystem level fluxes of isoprene and monoterpenes from a southeast Asian secondary forest and rubber tree plantation, Atmospheric Environment, 39, 381-390, 2005.
  • Pegoraro, E., A. Rey, J. Greenberg, P. Harley, J. Grace, Y. Malhi, and A. Guenther, Effect of drought on isoprene emission rates from leaves of Quercus virginiana Mill., Atmospheric Environment, 38 (36), 6149-6156, 2004.
  • Pressley, S., B. Lamb, H. Westberg, A. Guenther, J. Chen, and E. Allwine, Monoterpene emissions from a Pacific Northwest Old-Growth Forest and impact on regional biogenic VOC emission estimates, Atmospheric Environment, 38 (19), 3089-3098, 2004.
  • Karl, T. and A. Guenther, 2004:  Atmospheric variability of biogenic VOCs in the surface layer measured by proton-transfer-reaction mass spectrometry, Int. J. Mass Spec. 239, 77-86, 2004.
  • Karl, T., M. Potosnak, A. Guenther, D. Clark, J. Walker, J.D. Herrick, and C. Geron, Exchange processes of volatile organic compounds above a tropical rain forest: Implications for modeling tropospheric chemistry above dense vegetation, Journal of Geophysical Research-Atmospheres, 109, D18306, doi:10.1029/2004JD004738, 2004.
  • Spirig, C., A. Guenther, J. Greenberg, P. Calanca, and V. Tarvainen. Tethered balloon measurements of biogenic volatile organic compounds at a Boreal forest site Atmospheric Chemistry and Physics, 4, 215-229, 2004.
  • Boy, M., T. Petäjä, M. Dal Maso, Ü. Rannik, J. Rinne, P. Aalto, A. Laaksonen, P. Vaattovaara, J. Joutsensaari, T. Hoffmann, J. Warnke, M. Apostolaki, E. Stephanou, M. Tsapakis, A. Kouvarakis, C. Pio, A. Carvalho, A. Römpp, G. Moortgat, C. Spirig, A. Guenther, and J. Greenberg, P. Ciccioli and M. Kulmala.  Overview of the field measurement campaign in Hyytiälä, August 2001 in the frame of the EU project OSOA.  Atmospheric Chemistry and Physics, 3, 657-678, 2004.
  • Greenberg J, A. Guenther, G. Petron, C. Wiedinmyer, O. Vega, L. V. Gatti, Tota J, Fisch G (2003) Biogenic VOC emissions from forested Amazonian landscapes. Global Change Biology, 10, 651-662, 2004.
  • Harley, P., P. Vasconcellos, L. Vierling, C. Pinheiro, J. Greenberg, A. Guenther, L. Klinger, S., Almeida, D. Neill, T. Baker, O. Phillips, Y. Malhi, Variation in potential for isoprene emissions among Neotropical forest sites, Global Change Biology 10, 630-650, 2004.
  • Abbot, D., P. Palmer, R. Martin, K. Chance, D. Jacob, A. Guenther, Seasonal and interannual variability of isoprene emissions as determined by formaldehyde column measurements from space, Geo phys. Res. Lett. , 17, 1886, doi 10.1029/2003GL017336, 2003.
  • Otter L., A. Guenther, C. Wiedinmyer, G. Fleming, P. Harley, J. Greenberg. Spatial and temporal variations in biogenic volatile organic compound emissions for Africa south of the equator. J. Geophys. Res. ,108, D13, 8505, doi 10.1029/2002JD0022609, 2003.
  • Harley P, L Otter, A Guenther, J Greenberg. 2002. Micrometeorological and leaf-level measurements of isoprene emissions from a southern African savanna. J. Geophys. Res., 108, D13, 8468, doi 10.1029/2002JD002592, 2003.

·        Greenberg JP, A Guenther, P Harley. 2002. Eddy flux and leaf-level measurements of biogenic VOC emissions from Mopane woodland of Botswana , J. Geophys. Res. , 108, D13, 8466, doi 10.1029/2002JD002317, 2003.

·        Heikes, B., W. Chang, M. Pilson, E. Swift, H. Singh, A. Guenther, D. Jacob, R. Fall, D. Riemer, Atmospheric Methanol Budget and Ocean Implications, Global Biogeochemical Cycles , 10.1029/2002GB001895, 2002.

·        Klinger, L., Q. Li, A. Guenther, J. Greenberg, B. Baker, and J. Bai, Volatile organic compound emissions related to ecosystem development in China , J. Geophys. Res., 107, D21, 4603, doi 10.1029/2001JD001076, 2002.

·        Karl, T. G. , C. Spirig, P. Prevost, C. Stroud, J. Rinne, J. Greenberg, R. Fall, and A. Guenther, Virtual disjunct eddy covariance measurements of organic compound fluxes from a subalpine forest using proton transfer reaction mass spectrometry, Atmos. Chem. Phys. , 2, 279-291, 2002.

·        Guenther, A., The contribution of reactive carbon emissions from vegetation to the carbon balance of terrestrial ecosystems, Chemosphere- Global Change, 49: 837-844, 2002.

·        Otter, L.B., A. Guenther, J. Greenberg and M.C. Scholes, Seasonal and spatial variations in biogenic hydrocarbon emissions from south African savannas and woodlands , Atmospheric Environment, 36: 4265-4275, 2002.

·        Geron, C., A. Guenther, J. Greenberg, H. Loescher, D. Clark, B. Baker, Biogenic volatile organic compound emissions from a lowland tropical wet forest in Costa Rica, Atmospheric Environment, 36: 3793-3802, 2002.

·        Owen SM, P Harley, AB Guenther and CN Hewitt, Light dependent emissions of monoterpenes from selected Mediterranean plant species, Atmospheric Environment, 36: 3147-3159 , 2002.

·        Rinne, J., A. Guenther, J. Greenberg, and P. Harley, Isoprene and monoterpene fluxes measured above Amazonian rainforest and their dependence on light and temperature, Atmospheric Environment, 36: 2421-2426, 2002.

·        Warneke, C., S. Luxembourg, J. de Gouw, J. Rinne, A. Guenther, R. Fall, Disjunct eddy covariance measurements of oxygenated VOC fluxes from an alfalfa field before and after cutting, J. Geophys. Res., 107 D8, 10.1029/2001JD000594, 2002.

·        Karl, T., A. Guenther, C. Lindinger, A. Jordan, R. Fall, W. Lindinger, Eddy covariance measurements of oxygenated Volatile Organic Compound fluxes from crop harvesting using a redesigned proton-transfer-reaction mass spectrometer, J. Geophys Res , 106, 24157-24167, 2001.

·        Karl, T., P. Crutzen, M. Mandl, M. Staudinger, A. Guenther, A. Jordan, R. Fall, W. Lindinger, Variability-lifetime relationship of VOCs observed at the Sonnblick Observatory 1999- estimation of HO-densities, Atmos. Environ ., 35: 5287-5300, 2001.

·        Rinne, H., A. Guenther, C. Warneke, J. de Gouw, and S. Luxembourg , Disjunct eddy covariance technique for trace gas flux measurements, Geophys. Res. Letters, 28, 3139-3142, 2001.

·        Baugh, B., A. Guenther, and L. Klinger, Measurement of oak tree density with Landsat TM data for estimating biogenic isoprene emissions in Tennessee, USA, Int. J. Remote Sensing , 22, 2793-2810, 2001.

·        Serça, D., A. Guenther, A. Druilhet, J. Greenberg, L. Klinger, L. Vierling, P. Harley, B. Baker, C. Bouka-Biona, and J. Loemba-Ndembi, Experiment for Regional Sources and Sinks of Oxidants (EXPRESSO) tower site: An overview, Tellus , 53, 220-234, 2001.

·        Geron, C., P. Harley, and A. Guenther, Isoprene emission capacity for US tree species, Atmos. Environ ., 35, 3341-3352, 2001.

·        Petron G., P. Harley, J. Greenberg, and A. Guenther, Seasonal temperature variations influence isoprene emission, Geophys. Res. Lett ., 28, 1707-1710, 2001.

·        Baker, B., A. Guenther, J. Greenberg, and R. Fall, Canopy level fluxes of 2-methyl-3-buten-2-ol, acetone and methanol by a portable relaxed eddy accumulation system, Environmental Science & Technology, 35, 1701-1708, 2001.

·        Wiedinmyer, C., S. Friedfeld, W. Baugh, J. Greenberg, A. Guenther, M. Fraser, D. Allen, Measurement and Analysis of Atmospheric Concentrations of isoprene and its reaction products in Central Texas, Atmos. Environ ., 35:1001-1013, 2001.

·        Adams, J., J. Constable, A. Guenther, and P. Zimmerman, An estimate of natural volatile organic compound emissions from vegetation since the last glacial maximum, Chemosphere- Global Change Science, 3: 73-91, 2001.

·        Karl, T., A. Guenther, A. Jordan, R. Fall and W. Lindinger, Eddy covariance measurement of biogenic oxygenated VOC emissions from hay harvesting Atmos. Environ ., 35: 491-495, 2001.

·        Guenther, A., C. Geron, T. Pierce, B. Lamb, P. Harley, and R. Fall, Natural emissions of non-methane volatile organic compounds, carbon monoxide, and oxides of nitrogen from North America, Atmos. Environ , 34 , 2205-2230, 2000.

·        Rinne, H.J., A. Delany, J. Greenberg, and A. Guenther , A true eddy accumulation system for trace gas fluxes using disjunct eddy sampling , J. Geophys. Res ., 105: 24791-24798, 2000.

·        Kesselmeier, J., U. Kuhn, A. Wolf, M.O. Andreae, P. Ciccioli, E. Brancaleoni, M. Frattoni, L. Ganzeveld, A. Guenther, J. Greenberg, P. De Castro Vasconcellos, T. Tavares, and P. Artaxo, Atmospheric volatile organic compounds (VOC) at a remote tropical forest site in central Amazonia, Atmos. Environ. , 34, 4063-4072, 2000.

·        Fuentes, J., M. Lerdau, R. Atkinson, D. Baldocchi, J. Bottenheim, P. Ciccioli, B. Lamb, C. Geron, L. Gu, A. Guenther, T. Sharkey, and W. Stockwell, Biogenic hydrocarbons in the atmospheric boundary layer: a review, Bull. of the Amer. Meteor. Soc. , 81, 1537-1575, 2000

·        Geron, C., A. Guenther, T. Sharkey, and R. Arnts, Temporal variability in basal isoprene emission factor, Tree Physiology , 20, 799-805, 2000.

·        Geron, C., R. Rasmussen, R. Arnts, and A. Guenther, A review and synthesis of monoterpene speciation from forests in the United States , Atmos. Environ. , 34 , 1761-1781, 2000.

·        Guenther, A., B. Baugh, G. Brasseur, J. Greenberg, P. Harley, L. Klinger, D. Serca, and L. Vierling, Isoprene emission estimates and uncertainties for the Central African EXPRESSO study domain, J. Geophys. Res. , 104, 30625-30639, 1999.

·        Guenther, A., S. Archer, J. Greenberg, P. Harley, D. Helmig, L. Klinger, L. Vierling, M. Wildermuth, P. Zimmerman, and S. Zitzer, Biogenic hydrocarbon emissions and landcover/climate change in a subtropical savanna, Physics and Chemistry of the Earth , 6, 659-667, 1999.

·        Guenther, A., and A. Hills, Eddy covariance measurement of isoprene fluxes, J. Geophys. Res. , 103: 13145-13152, 1998 .

·        Guenther, A., Seasonal and spatial variations in natural volatile organic compound emissions, Ecol. Appl., 7, 34-45, 1997.

·        Guenther, A., W. Baugh, P. Zimmerman, L. Klinger, P. Harley, H. Westberg, L. Vierling, B. Lamb, E. Allwine, S. Dilts, D. Baldocchi, C. Geron, and T. Pierce, Isoprene fluxes measured by enclosure, relaxed eddy accumulation, surface-layer gradient, mixed-layer gradient, and mass balance techniques, J. Geophys. Res., 101 , 18555-18568, 1996.

·        Guenther, A., L. Otter, P. Zimmerman, J. Greenberg, R. Scholes, and M. Scholes, Biogenic hydrocarbon emissions from southern African savannas, J. Geophys. Res., 101 , 25859-25865, 1996.

·        Guenther, A., P. Zimmerman, L. Klinger, J. Greenberg, C. Ennis, K. Davis, H. Westberg and E. Allwine, Estimates of regional natural volatile organic compound fluxes from enclosure and ambient measurements, J. Geophys. Res., 101, 1345-1359, 1996.

·        Guenther, A., J. Greenberg, P. Harley, D. Helmig, L. Klinger, L. Vierling, P. Zimmerman, and C. Geron, Leaf, branch, stand, and landscape scale measurements of natural volatile organic compounds, Tree Phys. , 16, 17-24, 1996.

·        Guenther, A., C. N. Hewitt, D. Erickson, R. Fall, C. Geron, T. Graedel, P. Harley, L. Klinger, M. Lerdau, W. McKay, T. Pierce, B. Scholes, R. Steinbrecher, R. Tallamraju, J. Taylor and P. Zimmerman, A global model of natural volatile organic compound emissions, J. Geophys. Res., 100 , 8873-8892, 1995.

·        Guenther, A., P. Zimmerman and M. Wildermuth, Natural volatile organic compound emission rate estimates for U.S. woodland landscapes. Atmos. Environ., 28 , 1197-1210, 1994.

·        Guenther, A., P. Zimmerman, P. Harley, R. Monson, and R. Fall, Isoprene and monoterpene emission rate variability: Model evaluation and sensitivity analysis, J. Geophys. Res., 98 , 12609-12617, 1993.

 

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Major Activities:

1999: Dylan

 

 

2001: Megan and Dylan

 

 

2003: Dylan, Jacob, Kaylin and Megan

 

  

 

 2005: Kaylin, Megan, Dylan and Jacob (still only 4 of them!)

 

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