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Nicholas C Parazoo

Photo of Nicholas Parazoo


4800 Oak Grove Drive
M/S 233-300

Pasadena, CA 91109





Curriculum Vitae:

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Member of:

Carbon Cycle And Ecosystems


Terrestrial ecosystems interact with our planet’s climate through exchanges of carbon and water. My primary research interests are to quantify these exchanges and understand their sensitivity to climate variability, using observations and models of carbon, water, and their interactions across the Earth system to track CO2 movement through soils, plants, and atmosphere. My research spans urban and non-regions, including the Arctic, tropics, and megacities.


  • Ph.D., Atmospheric Science, Colorado State University, Fort Collins, Colorado (2011)
  • M.S., Atmospheric Science, Colorado State University, Fort Collins, Colorado (2007)
  • B.S., Environmental Science, Oregon State University, Corvallis, Oregon (2004)

Professional Experience

  • Scientist at JPL (2016-present)
  • Associate Researcher at UCLA-JIFRESSE (2018-present)
  • Assistant Researcher at UCLA-JIFRESSE (2014-2018)
  • Postdoctoral Research Associate, JIFRESSE (2011-2014)

Research Interests

  • Terrestrial and atmospheric carbon cycling
  • Carbon-climate feedbacks
  • Urban biosphere

Selected Awards

  • NASA Group Achievement Award, OCO-2 Science Team (2018)
  • Herbert Riehl Memorial Award, Best Paper Submitted for Publication, Colorado State University (2008)
  • NASA Center for the Earth Atmosphere Studies (CEAS) Fellowship, Colorado State University (2007-2010)
  • Programs of Research and Scholarly Excellence (PRSE) Fellowship, Colorado State University (2005)

Selected Publications


  1. Doughty, R., T. Kurosu, N. C. Parazoo, P. Kohler, Y. Wang, Y. Sun, C. Frankenberg, Global GOSAT, OCO-2 and OCO-3 Solar Induced Chlorophyll Fluorescence Datasets, Earth System Science Data, 14(4), 1513-1529.
  2. Stinecipher, J. R., Cameron‐Smith, P., Kuai, L., Glatthor, N., Höpfner, M., Baker, I., … Campbell, J. E. (2022). Remotely Sensed Carbonyl Sulfide Constrains Model Estimates of Amazon Primary Productivity. Geophysical Research Letters.
  3. Norton, A. J., P. J. Rayner, Y.-P. Wang, N. C Parazoo, L. Baskaran, R. Doughty, K. Cawse-Nicholson, Hydrologic connectivity drives extremes and high variability in vegetation productivity across Australian arid and semi-arid ecosystems, Remote Sensing of Environment, 272, p. 112937, 2022.
  4. Parazoo, N. C., R. W. Coleman, V. Yadav, E. N. Stavros, G. Hulley, L. Hutyra, 2021, Diverse biosphere influence on carbon and heat in mixed urban Mediterranean landscape revealed by high resolution thermal and optical remote sensing, Science of the Total Environment, 806, P. 151335.
  5. Parazoo, N. C., K. Bowman, B. Baier, J. Liu, M. Lee, L. Kuai, Y. Shiga, I. Baker, M. Whelan, S. Feng, M. Krol, C. Sweeney, B. Runkle, E. Tajfar, K. J. Davis, Covariation of airborne biogenic tracers (CO2, COS, and CO) supports stronger than expected growing season photosynthetic uptake in the southeast US, Global Biogeochemical Cycles, 35 (10), p.e2021GB006956.
  6. Xiao, J., J. B. Fisher, H. Hashimoto, K. Ichii, N. C. Parazoo, Emerging satellite observations for studying diurnal cycles of ecosystem processes, Nature Plants, 2021.
  7. Yadav, V., S. Ghosh, K. Mueller, A. Karion, G. Roest, S. Gourdji, I. Lopez-Coto, K. Gurney, K. Verhlust, N. C. Parazoo, J. Kim, M. Stock, E. DiGangi, S. Prinzivalli, C. Fain, R. Keeling, R. Weiss, R. Duren, J Henderson, C. Miller, J. Whetstone, The impact of COVID-19 on CO2 emissions in the Los Angeles and Washington DC/Baltimore metropolitan areas, Geophysical Research Letters, 48, e2021GL092744, 2021. http://10.1029/2021GL092744
  8. Pierrat, Z., M. F. Nehemy, A. Roy, T. Magney, N. Parazoo, C. Laroque, C. Pappas, O. Sonnentag, K. Grossman, D. R. Bowling, U. Seibt, A. Ramirez, B. Johnson, W. Helgason, A. Barr, J. Stutz, 2021. Tower-based remote sensing reveals mechanisms behind two-phased spring transition in a mixed species boreal forest, Journal of Geophysical Research: Biogeosciences, 126, e2020JG006191.
  9. Worden, J., S. Saatchi, M. Keller A. Bloom, R. Fu, J. Liu, N. C. Parazoo, J. B. Fisher, H. Worden, Y. Yin, et al, Satellite observations of the Tropical Terrestrial Carbon Balance and Interactions with the Water Cycle During the 21st Century, Reviews of Geophysics, Reviews of Geophysics, 59, e2020RG000711,
  10. Bloom, A. A., K. W. Bowman, J. Liu, A. G. Konings, J. R. Worden, N. C. Parazoo et al, 2020: Lagged effects dominate the inter-annua variability of the 2010-2015 tropical carbon balance, Biogeosciences, 17, 6393-6422.
  11. Coleman, R.W., N. Stavros, G. Hulley, N. Parazoo, 2020: Comparison of thermal infrared-derived maps of irrigated and non-irrigated vegetation in urban and non-urban areas of Southern California, Remote Sensing, 12 (24), p. 4102. Doi:10.3390/rs12244102.
  12. Parazoo, N. C., T. Magney, I Baker, B Raczka, C Bacour, F Maignan, A Norton, Y Zhang, M Shi, N MacBean, D. R. Bowling, S. P. Burns, P. D. Blanken, J. Stutz, K Grossman, C Frankenberg, 2020: Wide Discrepancies in the Magnitude and Direction of Modelled SIF in Response to Light Conditions, Biogeosciences, 17 (13), 3733-3755,
  13. Whelan, M, L Anderegg, G. Badgley, J. Elliott Campbell, R. Commane, C. Frankenberg, T. W. Hilton, L. Kuai, N. C. Parazoo, Y. Shiga, Y. Wang, J. R. Worden, 2020: Two scientific communities striving for a common cause: innovations in carbon cycle science, BAMS, 101 (9): E1537-E1543.
  14. Zhang, Y., N. C. Parazoo, A. Park Williams, Zhao, P. Gentine, 2020: Large and projected strengthening moisture limitation on end-of-season photosynthesis, Proceedings of the National Academy of Sciences, 117, 17, 9216-9222.
  15. Wen, J., P. Koehler, G. Duveiller, N. C. Parazoo, G. Hooker, L. Yu, C. Chang, Y. Sun, 2020: Generating a Long-Term Record of High-resolution Global Solar-Induced Chlorophyll Fluorescence (SIF) by Harmonizing Multiple Satellite Instruments: A Case Study for Fusing GOME-2 and SCIAMACHY, Remote Sensing of Environment, 239, 111644.
  16. Smith, W., A. Fox, N. MacBean, D. Moore, N. C. Parazoo, 2020: Constraining estimates of terrestrial carbon uptake: new opportunities using long-term satellite observations and data assimilation, New Phytologist, 225 (1), 105-112, doi:10.1111/nph.16055.
  17. Parazoo, N.C., C. Frankenberg, P. Kohler, J. Joiner, Y. Yoshida, T. Magney, Y. Sun, V. Yadav., Towards a harmonized long-term spaceborne record of far-red solar induced fluorescence, 2019: JGR-Biogeosciences, 124 (8), 2518-2539.
  18. Magney, T. C., D. Bowling, B. Logan, K. Grossman, J. Stutz, P. Blanken, S. Burns, R. Cheng, M. Garcia, P. Kohler, S. Lopez, N. Parazoo, B. Raczka, D. Schimel, C. Frankenberg, 2019: Mechanistic evidence for tracking the precise seasonality of photosynthesis with remotely sensed solar induced fluorescence, Proceedings of the National Academy of Sciences, 116 (24), 11640-11645.
  19. Schimel et al. inc N. C. Parazoo, 2019: Flux towers in the sky: global ecology from space, New Phytologist, 224 (2), 570-584.
  20. Kolus, H., et al. inc N.C. Parazoo, 2019: Land carbon models underestimate the severity and duration of drought impact on plant productivity, Scientific Reports, 9 (1), 2758.
  21. Jeong, S.-J., A. Anthony Bloom, D. Schimel, C. Sweeney, N. C. Parazoo, D. Medvigy, G. Schaepman, and C. E. Miller, 2018: Accelerating rates of Arctic carbon cycling revealed by long-term atmospheric CO2 measurements, Science Advances, 4(7), eaao1167, doi:10.1126/sciadv.aao1167
  22. Parazoo, N. C., A. Arneth, T. Pugh et al., 2018: Spring photosynthetic onset and net CO2 uptake in northern terrestrial ecosystems triggered by landscape thawing, Global Change Biology, 24(8), 3416-3435
  23. Graven, H., et al. and N. C. Parazoo, 2018: Assessing fossil fuel CO2 emissions in California using atmospheric CO2 observations and models, Env. Res. Lett., 13, 065007.
  24. Parazoo, N. C., C. D. Koven, D. M. Lawrence, V. Romanovsky, C.E. Miller, 2018: Detecting the permafrost carbon feedback: Talik formation and increased cold-season respiration as precursors to sink-to-source transitions: The Cryosphere, 12, 123-144,
  25. Liu, J., K. W. Bowman, D. Schimel, N. C. Parazoo, Z. Hiang, M. Lee, A. A. Bloom, D. Wunch, C. Frankenberg, Y. Sun, C. O’Dell, K. R. Gurney, D. Menemenlis, M. Girerach, D. Crisp, and Annmarie Eldering, 2017: Contrasting carbon cycle responses of the tropical continents to the 2015 El Nino: Science, 358 (6360), eaam5690, doi:10.1126/science.aam5690.
  26. Commane, R., J. Lindaas, J. Benmergui, K. A. Luus, R. Y. W. Chang, S. M. Miller, J. M Henderson, A. Karion, C. Sweeney, J. B. Miller, C. E. Miller, N. C. Parazoo, S. Veraverbeke, J. Randerson, B. C. Daube, S. C. Wofsy, 2017: Carbon dioxide sources from Alaska driven by increasing early winter respiration from Arctic Tundra, Proc Natl Acad Sci, doi:10.1073/pnas.1618567114.
  27. Barnes, E. A., N. C. Parazoo, C. Orbe, S. Denning, 2016: Isentropic transport and the seasonal cycle amplitude of CO2, J. Geophys. Res. Atmos., 121, doi:10.1002/2016JD025109.
  28. Parazoo, N. C., C. Sweeney, R. Chang, S. Wofsy, R. Commane, J. Lindaas, C. Koven, D. Lawrence, C. Miller, 2016: Detecting Regional Patterns of Changing CO2 Flux in Alaska, Proc Natl Acad Sci, 113, 28, 7733-7738.
  29. Parazoo, N. C., E. Barnes, J. Worden, A. B. Harper, K. W. Bowman, C. Frankenberg, S. Wolf, M. Litvak, T. F. Keenan, 2015: Influence of ENSO and the NAO on Terrestrial Carbon Uptake in the Texas-northern Mexico Region, Global Biogeochemical Cycles, 29, doi:10.1002/2015GB005125.
  30. Anav, A., P. Friedlingstein, C. Beer, P. Ciais, A. Harper, C. Jones, G. Murray-Tortarolo, D. Papale, N. C. Parazoo, P. Peylin, S. Piao, S. Sitch, N. Viovy, A. Wiltshire, M. Zhao, 2015: Spatio-temporal patterns of terrestrial gross primary production: A review, Review of Geophysics, 53, doi:10.1002/2015RG000483.
  31. Parazoo, N. C., K. Bowman, J. B. Fisher, C. Frankenberg, D. B. Jones, A. Cescatti, O. Perez-Priego, G. Wohlfahrt, L. Montagnani, 2014: Terrestrial gross primary production inferred from satellite fluorescence and vegetation models, Global Change Biology, 20 (10), 3103-3121.
  32. Parazoo, N. C., K. Bowman, C. Frankenberg, J.-E. Lee, J. B. Fisher, J. Worden, D. Jones, et al., 2013: Interpreting seasonal changes in the carbon balance of southern Amazonia using measurements of XCO2 and chlorophyll fluorescence from GOSAT, Geophys. Res. Lett., 40, doi:10.1002/grl.50452
  33. Parazoo, N. C., A. S. Denning, S. R. Kawa, S. Pawson, and R. Lokupitiya, 2012: CO2 flux estimation errors associated with moist atmospheric processes, Atmos. Chem. Phys., 12, 6405-6416.
  34. Parazoo, N. C., A. S. Denning, J. Berry, D. Randall, S. Kawa, O. Pauluis, and S. C. Doney, 2011: Moist synoptic transport of CO2 along the mid-latitude storm track, Geophys. Res. Lett., 38, L09804, doi:10.1029/2011GL047238.
  35. Parazoo, N. C., A. S. Denning, R. Kawa, K. Corbin, R. Lokupitia, I. Baker, and D. Worthy, 2008: Mechanisms for synoptic transport of CO2 in the midlatitudes and tropics, Atmos. Chem. Phys., 8, 7239-7254.