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Matthew S. Johnson

Research Scientist

Contents

Division: Earth Science Division (SG)

Branch: Biospheric Science Branch (SGE)

Professional Biography

Dr. Matthew Johnson is a research scientist in the Earth Science Division at NASA Ames Research Center (ARC). Prior to joining NASA ARC, he received his PhD in 2012 from North Carolina State University (NCSU) where he studied Atmospheric Sciences. His dissertation focused on global modeling of mineral dust aerosol transport, chemistry, and deposition. Matthew also received his MS in Atmospheric Sciences and BS in Meteorology from NCSU.

Matthew’s current research focuses on the application of satellite- and ground-based remote-sensing, in situ measurements, and chemical transport models to evaluate processes impacting climate and air quality. A major portion of his current research involves chemical transport modeling and remote-sensing data application to define processes controlling aerosol and ozone chemistry in the troposphere and applying satellite data in inverse modeling to constrain greenhouse gas emissions. He is currently Principal Investigator (PI) for ARC on NASA’s Tropospheric Ozone Lidar Network (TOLNet) Science Team and PI on projects for NASA’s Aura Science Team, TROPOspheric Monitoring Instrument (TROPOMI) Validation Team, Atmospheric Composition Modeling and Analysis Program (ACMAP), and Earth Information System – Greenhouse Gas (EIS-GHG) Program. He also recently completed a NASA Interdisciplinary Research in Earth Science (IDS) project where he was PI. His work is highly collaborative with NASA’s Orbiting Carbon Observatory-2 (OCO-2), Tropospheric Emissions: Monitoring of Pollution (TEMPO), and Global Modeling and Assimilation Office (GMAO) Science Teams, domestic institutions (e.g., NOAA, NCAR, universities), and international partners.

For further information on Matthew’s work please see his CV or contact him at matthew.s.johnson@nasa.gov.

Matthew’s Google Scholar: https://scholar.google.com/citations?user=C3w7Cx8AAAAJ&hl=en

Education

Ph.D.  Atmospheric Science, 2012, North Carolina State University, Advisor: Dr. Nicholas Meskhidze. Dissertation: Understanding the Transport, Chemical Transformation, and Biogeochemical Impact of Mineral Dust 

M.S.  Atmospheric Science, 2009,  North Carolina State University Air Quality Concentration   Advisor: Dr. Nicholas Meskhidze Thesis: Modeling Dust and Soluble Iron Deposition to the Southern Ocean: Application of GEOS-Chem 

B.S.  Meteorology, 2007,   North Carolina State University, Environmental Science Minor 

Employment Background

Research Physical Scientist, NASA Ames Research Center, 2012-present 

Research Assistant, North Carolina State University, 2007-2012 

Teaching Assistant, North Carolina State University, 2007-2012 

GEST/JCET Intern, NASA Goddard Space Flight Center, 2009 

Research Interests

  • Global and regional source apportioned greenhouse gas emissions and atmospheric concentrations using “bottom-up” and “top-down” modeling techniques.  
  • Air quality and tropospheric composition: combining remote-sensing retrievals, in situ data, and chemical transport modeling to evaluate aerosol and trace gas emissions, transport, chemical transformation, and deposition. 
  • Satellite-based remote-sensing data application and validation techniques. 
  • Global/regional scale modeling of mineral dust and bioavailable nutrient (e.g., iron, phosphorus, nitrogen) deposition to the world’s oceans. 

Professional Affiliations

American Geophysical Union Member, 2007-present 

European Geophysical Union Member, 2018-present 

American Meteorological Society, 2020-present 

Editorial Board – Atmosphere, 2019-2021 

NASA Science Team and International Collaboration

  • NASA ACCMAP, Principal Investigator 2023-present 
  • NASA Tropospheric Data Assimilation Working Group 2022-present 
  • NASA GHG – EIS Team, NASA ARC Principal Investigator 2022-present 
  • NASA TEMPO Validation Team 2021-present 
  • NASA Carbon Cycle Science Team 2021-present 
  • NASA ACCDAM Team 2021-present 
  • NASA Aura Science Team, Principal Investigator 2020-present 
  • ESA S5P/TROPOMI Validation Team, Principal Investigator 2019-2021 
  • NASA CMS-CH4 Working Group 2018-2020 
  • NASA Interdisciplinary Science (IDS), Principal Investigator 2017-2020 
  • NASA TEMPO Science Team, collaborator 2017-present 
  • AEROCENTER Group 2016-present 
  • NASA TOLNet Science Team, NASA ARC Principal Investigator 2015-present 
  • NASA Orbiting Carbon Observatory (OCO-2), collaborator 2015-present 
  • Research contribution to numerous NASA-funded field campaigns such as: DISCOVER-AQ Colorado, FRAPPE, SENEX, SEAC4RS, NAAMES, SCOOP, SABOR, LISTOS-2018, OWLETS-2, ACT-America, ABoVE, FIREX-AQ, TRACER-AQ. 

Awards & Others

2023 – Selected as Principal Investigator on the NASA ACCDAM Program. 

2023 – Selected as Principal Investigator on the NASA EIS-GHG Program. 

2022 – NASA Ames Superior Accomplishment Award: for “Collaborating with more than fifteen science teams affiliated with NASA, ESA, NOAA, and several universities” 

2021 – NASA Ames Superior Accomplishment Award: for “Success in interdisciplinary research leadership for IDS and recognition for outstanding support NASA mission science” 

2021 – NASA Early Career Achievement Medal: Awarded for his interdisciplinary science leadership in atmospheric and terrestrial sciences studying the planetary boundary layer  

2020 – NASA 2020 Group Achievement Award: FIREX-AQ Campaign 

2020 – Selected as Principal Investigator on the NASA Aura Science Team 

2019 – NASA 2019 Group Achievement Award: TOLNet Science Team 

2019 – Completed the Alan Alda Science Communication workshop 

2019 – Accepted an Editorial Board membership for the journal Atmosphere 

2019 – Selected as Principal Investigator on the S5P/TROPOMI Validation Team 

2018 – Awarded for Research Recognition at NASA Ames 

2016 – Selected as the Principal Investigator for the NASA IDS Program 

2015 – Selected as the NASA ARC Principal Investigator on the NASA TOLNet Science Team 

2009 – Participant in the UMBC/NASA Graduate Student Summer Program in Earth Sciences (GSSP) at the Goddard Space Flight Center   

2008 – Recipient of the 2007-2008 North Carolina Space Grant 

2006 – Awarded first place for research presented at the 2006 North Carolina State University Undergraduate Research Symposium 

Select Publications

60+ peer-reviewed publications: Google Scholar: h-index 19, i10-index 32, Citations 1370+ 

Johnson, M. S., S. Philip, R. Kumar, A. Naeger, A. H. Souri, J. Geddes, L. Judd, S. Janz, and J. Sullivan (2023), Satellite remote-sensing capability to assess tropospheric column ratios of formaldehyde and nitrogen dioxide: case study during the LISTOS 2018 field campaign, Atmos. Meas. Tech., 16, 2431–2454, https://doi.org/10.5194/amt-16-2431-2023. 

Souri, A. H., M. S. Johnson, G. M. Wolfe, J. H. Crawford, A. Fried, A. Wisthaler, et al. (2023), Characterization of Errors in Satellite-based HCHO / NO2 Tropospheric Column Ratios with Respect to Chemistry, Column to PBL Translation, Spatial Representation, and Retrieval Uncertainties, Atmos. Chem. Phys., 23, 1963–1986, https://doi.org/10.5194/acp-23-1963-2023. 

Wang, J., Zeng, N., Wang, M., Jiang, F., Chevallier, F., Crowell, S., Wei, H., Johnson, M. S., et al. (2023), Anomalous net biome exchange over Amazonian rainforests induced by the 2015/16 El Niño: Soil dryness-shaped spatial pattern but temperature-dominated total flux. Geophysical Research Letters, 50, e2023GL103379. https://doi.org/10.1029/2023GL103379. 

Lauerwald, R., Allen, G. H., Deemer, B. R., Liu, S., Maavara, T., Raymond, P., Alcott, L., Bastviken, D., Hastie, A., Holgerson, M. A., Johnson, M. S., et al. (2023), Inland water greenhouse gas budgets for RECCAP2: 1. State-of-the-art of global scale assessments. Global Biogeochemical Cycles, 37, e2022GB007657. https://doi.org/10.1029/2022GB007657. 

Lauerwald, R., Allen, G. H., Deemer, B. R., Liu, S., Maavara, T., Raymond, P., Alcott, L., Bastviken, D., Hastie, A., Holgerson, M. A., Johnson, M. S., et al. (2023), Inland water greenhouse gas budgets for RECCAP2: 2. Regionalization and homogenization of estimates. Global Biogeochemical Cycles, 37, e2022GB007658. https://doi.org/10.1029/2022GB007658. 

Byrne, B., Baker, D. F., Basu, S., Bertolacci, M., Bowman, K. W., Carroll, D., Chatterjee, A., Chevallier, F., Ciais, P., Cressie, N., Crisp, D., Crowell, S., Deng, F., Deng, Z., Deutscher, N. M., Dubey, M. K., Feng, S., García, O. E., Griffith, D. W. T., Herkommer, B., Hu, L., Jacobson, A. R., Janardanan, R., Jeong, S., Johnson, M. S., et al. (2023), National CO2 budgets (2015–2020) inferred from atmospheric CO2 observations in support of the global stocktake, Earth Syst. Sci. Data, 15, 963–1004, https://doi.org/10.5194/essd-15-963-2023. 

Watts, J. D., Farina, M., Kimball, J. S., Schiferl, L. D., Liu, Z., Arndt, K. A., Zona, D., Ballantyne, A., Euskirchen, E. S., Parmentier, F. J. W., Johnson, M. S., et al. (2023), Carbon uptake in Eurasian boreal forests dominates the high latitude net ecosystem carbon budget. Glob. Chang. Biol., 29, 1870-1889, https://doi.org/10.1111/gcb.16553. 

Chang, K.-L., Cooper, O. R., Rodriguez, G., Iraci, L. T., Yates, E. L., Johnson, M. S., et al. (2023). Diverging ozone trends above western North America: Boundary layer decreases versus free tropospheric increases. Journal of Geophysical Research: Atmospheres, 128, e2022JD038090. https://doi.org/10.1029/2022JD038090 

Johnson, M. S., E. Matthews, J. Du, V. Genovese, and D. Bastviken (2022), Methane emission from global lakes: New spatiotemporal data and observation-driven modeling of methane dynamics indicates lower emissions, Journal of Geophysical Research: Biogeosciences, 127, e2022JG006793. https://doi.org/10.1029/2022JG006793. 

Knowland, K. E., C. A. Keller, P. A. Wales, K. Wargan, L. Coy, M. S. Johnson, et al. (2022), NASA GEOS Composition Forecast Modeling System GEOS-CF v1.0: Stratospheric composition, Journal of Advances in Modeling Earth Systems, 14, e2021MS002852, https://doi.org/10.1029/2021MS002852. 

Byrne, B., J. Liu, Y. Yi, A. Chatterjee, S. Basu, R. Cheng, R. Doughty, F. Chevallier, K. W. Bowman, N. C. Parazoo, D. Crisp, X. Li, J. Xiao, S. Sitch, B. Guenet, F. Deng, M. S. Johnson, et al. (2022), Multi-year observations reveal a larger than expected autumn respiration signal across northeast Eurasia, Biogeosciences, 19, 4779–4799, https://doi.org/10.5194/bg-19-4779-2022. 

Kacenelenbogen, M. S. F., Q. Tan, S. P. Burton, O. P. Hasekamp, K. D. Froyd, Y. Shinozuka, A. J. Beyersdorf, L. Ziemba, K. L. Thornhill, J. E. Dibb, T. Shingler, A. Sorooshian, R. W. Espinosa, V. Martins, J. L. Jimenez, P. Campuzano-Jost, J. P. Schwarz, M. S. Johnson, et al. (2022), Identifying chemical aerosol signatures using optical suborbital observations: how much can optical properties tell us about aerosol composition?, Atmos. Chem. Phys., 22, 3713–3742, https://doi.org/10.5194/acp-22-3713-2022. 

Cui, Y. Y., L. Zhang, A. R. Jacobson, M. S. Johnson, S. Philip, D. Baker, et al. (2022), Evaluating global atmospheric inversions of terrestrial net ecosystem exchange CO2 over North America on seasonal and sub-continental scales. Geophysical Research Letters, 49, e2022GL100147. https://doi.org/10.1029/2022GL100147. 

Schuh, A., B. Byrne, A. R. Jacobson, S. M. R. Crowell, F. Deng, D. F. Baker, M. S. Johnson, S. Phillip, and B. Weir (2022), On the role of atmospheric model transport uncertainty in estimating the Chinese land carbon sink, Nature, 603, E13-E14, https://doi.org/10.1038/s41586-021-04258-9. 

Philip, S., M. S. Johnson, D. F. Baker, S. Basu, Y. K. Tiwari, N. K. Indira, et al. (2022), OCO-2 satellite-imposed constraints on terrestrial biospheric CO2 fluxes over South Asia, Journal of Geophysical Research: Atmospheres, 127, e2021JD035035, https://doi.org/10.1029/2021JD035035. 

Peiro, H., S. Crowell, A. Schuh, D. F. Baker, C. O’Dell, A. R. Jacobson, F. Chevallier, J. Liu, A. Eldering, D. Crisp, F. Deng, B. Weir, S. Basu, M. S. Johnson, et al. (2022), Four years of global carbon cycle observed from the Orbiting Carbon Observatory 2 (OCO-2) version 9 and in situ data and comparison to OCO-2 version 7, Atmos. Chem. Phys., 22, 1097–1130, https://doi.org/10.5194/acp-22-1097-2022. 

Souri, A. H., K. Chance, K. Sun, X. Liu, and M. S. Johnson (2022), Dealing with spatial heterogeneity in pointwise-to-gridded- data comparisons, Atmos. Meas. Tech., 15, 41–59, https://doi.org/10.5194/amt-15-41-2022. 

Zhang, L., K. J. Davis, A. E. Schuh, A. R. Jacobson, S. Pal, Y. Y. Cui, D. Baker, S. Crowell, F. Chevallier, M. Remaud, J. Liu, B. Weir, S. Philip, M. S. Johnson, et al. (2022), Multi-season evaluation of CO2 weather in OCO-2 MIP models. Journal of Geophysical Research: Atmospheres, 127, e2021JD035457. https://doi.org/10.1029/2021JD035457. 

Wang, Y., X. Tian, F. Chevallier, M. S. Johnson, S. Philip, D. F. Baker, A. E. Schuh, F. Deng, X. Zhang, L. Zhang, D. Zhu, and X. Wang (2022), Constraining China’s land carbon sink from emerging satellite CO2 observations: progress and challenges, Global Change Biology, https://doi.org/10.1111/gcb.16412. 

Johnson, M. S., Matthews, E., Bastviken, D., Deemer, B., Du, J., & Genovese, V. (2021), Spatiotemporal methane emission from global reservoirs. Journal of Geophysical Research: Biogeosciences, 126, e2021JG006305. https://doi.org/10.1029/2021JG006305. 

Johnson, M. S., K. Strawbridge, K. E. Knowland, C. Keller, and M. Travis (2021), Long-range transport of Siberian biomass burning emissions to North America during FIREX-AQ, Atmos. Environ., 252, https://doi.org/10.1016/j.atmosenv.2021.118241. 

Su, J., M. P. McCormick, M. S. Johnson, J. T. Sullivan, M. J. Newchurch, T. A. Berkoff, S. Kuang, and G. P. Gronoff (2021), Tropospheric NO2 measurements using a three-wavelength optical parametric oscillator differential absorption lidar, Atmos. Meas. Tech., 14, 4069–4082, https://doi.org/10.5194/amt-14-4069-2021. 

Meskhidze, N., B. Sutherland, X. Ling, K. Dawson, M. S. Johnson, B. Henderson, C. A. Hostetler, and R. A. Ferrare (2021), Improving estimates of PM2.5 concentration and chemical composition by application of High Spectral Resolution Lidar (HSRL) and Creating Aerosol Types from chemistry (CATCH) algorithm, Atmos. Environ., 250, https://doi.org/10.1016/j.atmosenv.2021.118250. 

Johnson, M. S., F. M. Schwandner, C. S. Potter, H. M. Nguyen, E. Bell, R. R. Nelson, S. Philip, and C. W. O’Dell (2020), Carbon dioxide emissions during the 2018 Kilauea volcano eruption estimated using OCO-2 satellite retrievals. Geophys. Res. Lett., 47, e2020GL090507. https://doi.org/10.1029/2020GL090507. 

Matthews, E., M. S. Johnson, V. Genovese, J. Du, and D. Bastviken (2020), Methane emission from high latitude lakes: methane-centric lake classification and satellite-driven annual cycle of emissions. Sci. Rep., 10, 12465, https://doi.org/10.1038/s41598-020-68246-1. 

Philip, S., M. S. Johnson, C. Potter, V. Genovesse, D. F. Baker, K. D. Haynes, D. K. Henze, J. Liu, and B. Poulter (2019), Prior biosphere model impact on global terrestrial CO2 fluxes estimated 2 from OCO-2 retrievals, Atmos. Chem. Phys., 19, 13267–13287, https://doi.org/10.5194/acp-19-13267-2019. 

Ito, A., S. Myriokefalitakis, M. Kanakidou, N. M. Mahowald, R. A. Scanza, D. S. Hamilton, A. R. Baker, T. Jickells, M. Sarin, S. Bikkina, Y. Gao, R. U. Shelley, C. S. Buck, W. M. Landing, A. R. Bowie, M. M. G. Perron, C. Guieu, N. Meskhidze, M. S. Johnson, Y. Feng, J. F. Kok, A. Nenes, and R. A. Duce (2019), Pyrogenic iron: The missing link to high iron solubility in aerosols, American Association for the Advancement of Science, 5, eaau7671, doi:10.1126/sciadv.aau7671. 

Cui, Y. Y., A. Vijayan, M. Falk, Y.-K. Hsu, D. Yin, X. M. Chen, Z. Zhao, J. Avise, Y. Chen, K. Verhulst, R. Duren, V. Yadav, C. Miller, R. Weiss, R. Keeling, J. Kim, L. T. Iraci, T. Tanaka, M. S. Johnson, E. A. Kort, L. Bianco, M. L. Fischer, K. Stroud, J. Herner, and B. Croes (2019), A Multiplatform Inversion Estimation of Statewide and Regional Methane Emissions in California during 2014–2016, Environmental Science & Technology, 53, 9636–9645, https://doi.org/10.1021/acs.est.9b01769. 

Johnson, M. S., X. Liu, P. Zoogman, J. Sullivan, M. J. Newchurch, S. Kuang, T. Leblanc, and T. McGee (2018), Evaluation of potential sources of a priori ozone profiles for TEMPO tropospheric ozone retrievals, Atmos. Meas. Tech., 11, 3457-3477, https://doi.org/10.5194/amt-11-3457-2018. 

Leblanc, T., M. A. Brewer, P. S. Wang, M. J. Granados-Muñoz, K. B. Strawbridge, M. Travis, B. Firanski, J. T. Sullivan, T. J. McGee, G. K. Sumnicht, L. W. Twigg, T. A. Berkoff, W. Carrion, G. Gronoff, A. Aknan, G. Chen, R. J. Alvarez, A. O. Langford, C. J. Senff, G. Kirgis, M. S. Johnson, S. Kuang, and M. J. Newchurch (2018), Validation of the TOLNet lidars: the Southern California Ozone Observation Project (SCOOP), Atmos. Meas. Tech., 11, 6137-6162, doi:10.5194/amt-11-6137-2018. 

Myriokefalitakis, S., A. Ito, M. Kanakidou, A. Nenes, M. C. Krol, N. M. Mahowald, R. A. Scanza, D. S. Hamilton, M. S. Johnson, N. Meskhidze, J. F. Kok, C. Guieu, A. R. Baker, T. D. Jickells, M. M. Sarin, S. Bikkina, R. Shelley, A. Bowie, M. M. G. Perron, and R. A. Duce (2018), Reviews and syntheses: the GESAMP atmospheric iron deposition model intercomparison study, Biogeosciences, 15, 6659-6684, doi:10.5194/bg-15-6659-2018. 

Granados-Muñoz, M. J., M. S. Johnson, and T. Leblanc (2017), Influence of the North American monsoon on Southern California tropospheric ozone levels during summer in 2013 and 2014, Geophys. Res. Lett., 44, doi:10.1002/2017GL073375. 

Dawson, K. W., N. Meskhidze, S. P. Burton, M. S. Johnson, M. S. Kacenelenbogen, C. Hostetler, and Y. Hu (2017), Creating Aerosol Types from CHemistry (CATCH): A New Algorithm to Extend the Link Between Remote Sensing and Models, J. Geophys. Res., 122, doi:10.1002/2017JD026913. 

Kuang, S., M. J. Newchurch, M. S. Johnson, L. Wang, J. Burris, R. B. Pierce, E. W. Eloranta, I. B. Pollack, M. Graus, J. de Gouw, C. Warneke, T. B. Ryerson, M. Z. Markovic, J. S. Holloway, A. Pour-Biazar, G. Huang, X. Liu, and N. Feng (2017), Summertime tropospheric ozone enhancement associated with a cold front passage due to stratosphere-to-troposphere transport and biomass burning: Simultaneous ground-based lidar and airborne measurements, J. Geophys. Res., 122, doi:10.1002/2016JD026078. 

Ryoo, J., M. S. Johnson, L. Iraci, E. Yates, and W. Gore (2017), Investigating sources of ozone over California using AJAX airborne measurements and models: Assessing the contribution from long-range transport, Atmos. Environ., 155, 53-67, doi:10.1016/j.atmosenv.2017.02.008. 

Meskhidze, N., D. Hurley, T. M. Royalty, and M. S. Johnson (2017), Potential effect of atmospheric dissolved organic carbon on the iron solubility in seawater, Marine Chemistry, 194, 124-132, doi:10.1016/j.marchem.2017.05.011. 

Tadic, J. M., A. M. Michalak, L. Iraci, V. Ilic, S. C. Biraud, D. Feldman, T. P. Bui, M. S. Johnson, M. Loewenstein, S. Jeong, M. L. Fischer, E. Yates, and J. Ryoo (2017), Elliptic Cylinder Airborne Sampling and Geostatistical Mass Balance Approach for Quantifying Local Greenhouse Gas Emissions, Environ. Sci. Technol., 51, 10012-10021, doi:10.1021/acs.est.7b03100. 

Yates, E. L., M. S. Johnson., L. T. Iraci, J.-M. Ryoo, R. B. Pierce, P. D. Cullis, and T. Tanaka (2017), An assessment of ground level and free tropospheric ozone over California and Nevada. Journal of Geophysical Research: Atmospheres, 122, 10089–10102, https://doi.org/10.1002/2016JD026266. 

Johnson, M. S., X. Xi, E. L. Yates, L. T. Iraci, M. Loewenstein, J. Tadic, K. J. Wecht, S. Jeong, M. L. Fischer (2016), Investigating seasonal methane emissions in northern California using airborne measurements and inverse modeling, J. Geophys. Res., 121, doi:10.1002/2016JD025157. 

Johnson, M. S., S. Kuang, L. Wang, and M. J. Newchurch (2016), Evaluating Summer-Time Ozone Enhancement Events in the Southeast United States, Atmosphere, 7(8), 108, doi:10.3390/atmos7080108. 

Ito, T., A. Nenes, M. S. Johnson, N. Meskhidze, and C. Deutsch (2016), Acceleration of oxygen decline in the tropical Pacific over the past decades by aerosol pollutants, Nature Geoscience, 9, 443-447. 

Xi, X., M. S. Johnson, S. Jeong, M. Fladeland, D. Pieri, J. A. Diaz, and G. Bland (2016), Constraining the sulfur dioxide degassing flux from Turrialba volcano, Costa Rica using unmanned aerial system measurements, Journal of Volcanology and Geothermal Research, 325, 110-118, doi:10.1016/j.jvolgeores.2016.06.023. 

Tanaka, T., E. Yates, L. Iraci, M. S. Johnson, W. Gore, J. M. Tadic, M. Loewenstein, A. Kuzez, C. Frankenberg, A. Butz, and Y. Yoshida (2016), Two-year comparison of airborne measurements of CO2 and CH4 with GOSAT at Railroad Valley, Nevada, IEEE Transactions on Geoscience and Remote Sensing, 54(8), 4367-4375. 

Meskhidze, N., M. S. Johnson, D. Hurley, and K. Dawson (2016), Influence of measurement uncertainties on fractional solubility of iron in mineral aerosols over the oceans, Aeolian Research, 22, 85-92. 

Newchurch, M. J., Kuang, S., Leblanc, T., Alvarez, R. J., Langford, A. O., Senff, C. J., Burris, J. F., McGee, T. J., Sullivan, J. T., DeYoung, R. J., Al-Saadi, J., Johnson, M. S., and Pszenny, A. (2016), TOLNet – A Tropospheric Ozone Lidar Profiling Network for Satellite Continuity and Process Studies, EPJ Web of Conferences, 119, 20001, doi:10.1051/epjconf/201611920001. 

Gantt, B., M. S. Johnson, M. Crippa, A. S. H. Prévôt, and N. Meskhidze (2015), Implementing marine organic aerosols into the GEOS-Chem model, Geosci. Model Dev., 8, 619-629, doi:10.5194/gmd-8-619-2015. 

Johnson, M. S., E. L. Yates, L. T. Iraci, M. Loewenstein, J. Tadic, K. J. Wecht, S. Jeong, M. L. Fischer (2014), Analyzing source apportioned methane in northern California during DISCOVER-AQ-CA using airborne measurements and model simulations, Atmos. Environ., 99, doi:10.1016/j.atmosenv.2014.09.068, 248-256. 

Gantt, B., M. S. Johnson, M. Crippa, A. S. H. Prévôt, and N. Meskhidze (2014), Implementing marine organic aerosols into the GEOS-Chem model, Geosci. Model Dev. Discuss., 7, doi:10.5194/gmdd-7-5965-2014, 5965-5992. 

Russell P. B., M. Kacenelenbogen, J. M. Livingston, O. P. Hasekamp, S. P. Burton, G. L. Schuster, M. S. Johnson, K. D. Knobelspiesse, J. Redemann, S. Ramachandran, and B. Holben (2014), A Multi-Parameter Aerosol Classification Method and its Application to Retrievals from Spaceborne Polarimetry, J. Geophys. Res., doi:10.1002/2013JD021411. 

Johnson, M. S. and N. Meskhidze (2013), Atmospheric dissolved iron deposition to the global oceans: Effects of oxalate-promoted Fe dissolution, photochemical redox cycling, and dust mineralogy, Geosci. Model Dev., 6, 1137-1155. 

Yates, E. L., L. T. Iraci, M. C. Roby, R. B. Pierce, M. S. Johnson, P. J. Reddy, J. M. Tadic, M. Loewenstein, and W. Gore (2013), Airborne observations and modeling of springtime stratosphere-to-troposphere transport over California, Atmos. Chem. Phys., 13, 12481-12494. 

Meskhidze, N., M. D. Petters, K. Tsigaridis, T. Bates, C. O’Dowd, J. Reid, E. R. Lewis, B. Gantt, M. D. Anguelova, P. V. Bhave, J. Bird, A. H. Callaghan, D. Ceburnis, R. Chang, A. Clarke, G. de Leeuw, G. Deane, P. J. DeMott, S. Elliot, M. Cristina Facchini, C. W. Fairall, L. Hawkins, Y. Hu, J. G. Hudson, M. S. Johnson, et al. (2013), Production mechanisms, number concentration, size distribution, chemical composition, and optical properties of sea spray aerosols, Atmos. Sci. Lett., 14, 207-213. 

Johnson, M. S., N. Meskhidze, and V. P. Kiliyanpilakkil (2012), A global comparison of GEOS-Chem predicted and remotely-sensed mineral dust aerosol optical depth, J. of Adv. Model. Earth Syst. 4: M07001. doi:10.1029/2011MS000109. 

Gantt, B., M. S. Johnson, N. Meskhidze, J. Sciare, J. Ovadnevaite, D. Ceburnis, C. D. O’Dowd (2012), Model evaluation of marine primary organic aerosol emission schemes, Atmos. Chem. Phys. 12:8553-8556. 

Johnson, M. S., N. Meskhidze, V. P. Kiliyanpilakkil, and S. Gassό (2011), Understanding the transport of Patagonian dust and its influence on marine biological activity in the South Atlantic Ocean, Atmos. Chem. Phys. 10:27283–27320, doi:10.5194/acpd-10-27283-2010. 

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