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 Carbon Cycle And Ecosystems: People
Nicholas C Parazoo's Picture
Jet Propulsion Laboratory
M/S 233-300
4800 Oak Grove Drive
Pasadena, CA 91109
Curriculum Vitae:

Nicholas C Parazoo

Terrestrial ecosystems can interact with our planet's climate through breathing in and out of CO2 by photosynthesis and respiration. My primary research interests are to quantify these exchanges and understand their sensitivity to CO2, climate, and land cover change. My PhD and Postdoc used aircraft and satellite observations with carbon models to quantify CO2 exchanges between land and atmosphere, and track CO2 movement through cloudy weather systems. My current research seeks focuses on terrestrial carbon climate feedbacks across 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)

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


NASA's Earth Science Program is dedicated to advancing Earth remote sensing and pioneering the scientific use of satellite measurements to improve human understanding of our home planet.

OCO-2 - Orbiting Carbon Observatory Icon OCO-2 - Orbiting Carbon Observatory
The Orbiting Carbon Observatory-2 (OCO-2) is a mission designed to make precise, time-dependent global measurements of atmospheric carbon dioxide (CO2) from an Earth orbiting satellite.

NASA Interdisciplinary Research in Earth Science (IDS) Icon NASA Interdisciplinary Research in Earth Science (IDS)
This project uses spaceborne and tower data with carbon and water cycle models to understand how changes in temperature and water availability over the last decade have affected vegetation photosynthesis and carbon uptake in N America.

ABoVE (Arctic Boreal Vulnerability Experiment ) Icon ABoVE (Arctic Boreal Vulnerability Experiment )
The Arctic Boreal Vulnerability Experiment (ABoVE) is a proposed NASA field campaign focusing on understanding the Arctic-Boreal environment.

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)

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. 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, Two scientific communities striving for a common cause: innovations in carbon cycle science, BAMS, In Press
  2. Zhang, Y., N. Parazoo, A. Park Williams, Sha Zhao, P. Gentine, Large and projected strengthening moisture limitation on End-of-Season Photosynthesis, PNAS, In Press
  3. Published

  4. Madani, N., J. S. Kimball, N. C. Parazoo, A. P. Ballantyne, T. Tagesson, L. A. Jones, R. H. Reichle, P. I. Palmer, I. Velicogna, A. Anthony Bloom, S. Saatchi, Z. Liu, A. Geruo, 2019: Below-surface water mediates the response of African forests to reduced rainfall, Environmental Research Letters, 15(3),
  5. Shi, M., N. C. Parazoo, S.-J. Jeong, L. Birch, P. Lawrence, E. S. Euskirchen, C. Miller, 2020: Exposure to Cold Temperature Affects the Phenology of Alaskan Deciduous Vegetation Types, Environmental Research Letters, 15, 2.
  6. 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.
  7. 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,
  8. Liu, Z., J. Kimball, N. C. Parazoo, A. Ballantyne, W. Wang, N. Madani, C. Pan, J. Watts, R. Reichle, et al, 2020: Increased high latitude photosynthetic carbon gain offset by respiration carbon loss during an anomalous warm winter to spring transition, Global Change Biology,
  9. Labzovskii, L., S.-J. Jeong, N.C. Parazoo, Working towards confident spaceborne monitoring of carbon emissions from cities using Orbiting Carbon Observatory-2, Remote Sens. Env., 233, 2019.
  10. 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, JGR-Biogeosciences,
  11. Cui, E. et al. inc N. C. Parazoo, 2019: Vegetation functional properties determine uncertainty of simulated ecosystem productivity: a traceability analysis in the East Asian monsoon region, Global Biogeochemical Cycles,
  12. Konings, A. G., A. A. Bloom, J. Liu, N. C. Parazoo, D. S. Schimel, and K. W. Bowman, 2019: Global satellite-driven estimates of heterotrophic respiration, Biogeosciences, 16, 2269-2284,
  13. 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, PNAS,
  14. Schimel et al. inc N. C. Parazoo, 2019: Flux towers in the sky: global ecology from space, New Phytologist,
  15. Kolus, H., et al. inc N.C. Parazoo, 2019: Land carbon models underestimate the severity and duration of dourhts impact on plant productivity, Scientific Reports, 9 (1), 2758.
  16. Liu, J., K. Bowman, N. Parazoo, A. A. Bloom, D. Wunch, Z. Jiang, K. Gurney, D. Schimel. 2018: Detecting drought impact on terrestrial biosphere carbon fluxes over continuous US with satellite observations, Environ. Res. Lett., 13 (9), 095003
  17. 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,
  18. 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
  19. Parazoo, N. C., C. D. Koven, D. M. Lawrence, V. Romanovsky, C.E. Miller, Detecting the permafrost carbon feedback: Talik formation and increased cold-season respiration as precursors to sink-to-source transitions, 2018: The Cryosphere, 12, 123-144,
  20. 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, Contrasting carbon cycle responses of the tropical continents to the 2015 El Niño, 2017: Science, 358 (6360), eaam5690,
  21. Bowman, K., J. Liu, A. Bloom, N. C. Parazoo, M. Lee, Z. Jiang, D. Menemenlis, M. Gierach, G. Collatz, K. Gurney, Global and Brazilian carbon response to El Niño Modoki 2011-2010, Earth and Space Science, 2017: 4, 637-660.
  22. Huntzinger et al., inc. N. C. Parazoo 2017: Understanding the global land carbon sink: Beyond climate and CO2 sensitivity, Scientific Reports, 7, 4764,
  23. Madani, N., J. Kimball, L. Jones, N. C. Parazoo, K. Guan, 2017: Global Analysis of Bioclimatic Controls on Ecosystem Productivity using Satellite Observations of Solar-Induced Chlorophyll Fluorescence, Remote Sensing, 9, 530, .
  24. Chew, C., S. Lowe, N. Parazoo, S. Esterhuizen, S. Oveisgharan, E. Podest, C. Zuffada, A. Freedman, 2017: SMAP radar receiver measures land surface freeze/thaw state through capture of forward-scattered L-band signals, Remote Sensing of Environment, 198, 333-344.
  25. Fang, Y. et al. inc N. Parazoo, 2017: Global land carbon sink response to temperature and precipitation varies with ENSO phase, Environ. Res. Lett., 12, 6.
  26. Fischer, M. L., N. C. Parazoo, K. Brophy, X. Cui, S. Jeong, J. Liu, R. Keeling, T. E. Taylor, K. Gurney, T. Oda, H. Graven (2017) Simulated Estimation of California Fossil Fuel and Biosphere Carbon Dioxide Exchanges Combining In-situ Tower and Satellite Column Observations, J. Geophys. Res - Atm, 122 (6), 3653-3671.
  27. Commane, R., et al. inc. N. C. Parazoo (2017) Rising carbon dioxide emissions from Arctic tundra driven by early winter respiration, Proc Natl Acad Sci, .
  28. Luus, K., R. Commane, N. C. Parazoo et al. (2017) Tundra photosynthesis captured by satellite-observed solar-induced chlorophyll fluorescence, Geophys. Res. Lett.,
  29. 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,
  30. Parazoo, N. C., et al. (2016) Detecting Regional Patterns of Changing CO2 Flux in Alaska, Proc Natl Acad Sci, 113, 28, 7733-7738.
  31. Ito, A., et al. inc. N. C. Parazoo (2016) Decadal trends in seasonal-cycle amplitude of terrestrial CO2 exchange resulting from the ensemble of terrestrial biosphere models, Tellus B, 68, 28968,
  32. Deng, F., D. B. A. Jones, C. O'Dell, R. Nassar, N. C. Parazoo (2016) Combining GOSAT XCO2 observations over land and ocean to improve regional CO2 flux estimates, J Geophys Res - Atm,
  33. J. Mao, et al. inc. MN. Parazoo (2015) Disentangling climatic and anthropogenic controls on global terrestrial evapotranspiration trends, Environ. Res. Lett., 10, 094008.
  34. Parazoo, N. C., E. Barnes, J. Worden et al. (2015) Influence of ENSO and the NAO on Terrestrial Carbon Uptake in the Texas-northern Mexico Region, Global Biogeochem Cy, 29,
  35. Anav, A., et al. inc. N. C. Parazoo (2015) Spatio-temporal patterns of terrestrial gross primary production: A review, Review of Geophysics, 53,
  36. 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.
  37. Parazoo, N. C., 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,
  38. 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.
  39. 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,
  40. 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.

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