Cecile Rousseaux, Senior Scientist/Group Lead

Cecile Rousseaux

Contact Info

NASA Goddard Space Flight Center
Bldg. 33, Room G109, Code 610.1
Greenbelt, MD 20771
Phone: 301-614-5750
Email: cecile.s.rousseaux@nasa.gov

Research Interests

Dr. Cécile Rousseaux works on the effects of climate variability on phytoplankton using a satellite data assimilating global biogeochemical model (NOBM, https://gmao.gsfc.nasa.gov/research/oceanbiology/description.php) with Dr. Watson W. Gregg (retired, NASA, GSFC). In 2014 and 2020, she was selected as Principal Investigator to beon the first and second PACE Science Team. As part of this work she developped a simulated hyperspectral dataset in preparation for PACE. As part of the second Science Team, she will developped the assimlation framework to assimilate hyperspectral water leaving radiances from PACE in an Earth System Model to generate Level 4 data. She will also be working on analyzing the information on phytoplankton composition that can be derived from those hyperspectral water leaving radiance. Dr. Rousseaux is also working on developping a dynamical biogeochemcial forecast, a project funded by the Modeling, Analysis, and Prediction Program (MAP). Using the NOBM and the assimilation of satellite ocean color data, she provided some information to the NASA EXPORTS field campaign (2018) in support of the field experiment design. FInally, Dr. Rousseaux is also an active member of the Carbon Monitoring System (https://carbon.nasa.gov/), an initiative to characterize, quantify, understand and predict the evolution of global carbon sources and sinks.


Cécile S. Rousseaux graduated from the University of Namur (Belgium) and received one Masters Degree in Biology of Organisms (University of Namur) and another in Oceanography (University of Liege). She then completed her PhD in Environmental Engineering at the University of Western Australia. In 2011, Dr. Rousseaux started as a Research Scientist at NASA Goddard Space Flight Center. Her research focuses on the role of oceans in the carbon cycle, the effects of climate variability and trends in the ocean biogeochemical cycle, and the support of upcoming field and satellite missions. She was a Principal Investigator on the first PACE Science Team (2015-2018), is Principal Investigator on an Ocean Biology and Biogeochemistry proposal to provide support for the EXPORTS field campaign, and is a PI on a Modeling, Analysis, and Prediction proposal to develop a seasonal forecast of ocean biogeochemistry at the global scale. Since 2015, she has led the Goddard Ocean Focus Group as part of the development of future mission developments. She received a World Climate Research Programme (WCRP) Presentation award in 2011, a NASA GMAO Award for Outstanding Contribution by a new GMAO member in 2013, and a USRA Presidential Award in 2016.

2017-current: Senior Scientist and Group Lead, GESTAR/Universities Space Research Association (USRA) at the Global Modeling and Assimilation Office (GMAO), NASA
2012-2017: Research Scientist, GESTAR/Universities Space Research Association (USRA) at the Global Modeling and Assimilation Office (GMAO), NASA
2011-2012: Postdoctoral Researcher, Universities Space Research Association at the Global Modeling and Assimilation Office (GMAO), NASA
2007-2011: PhD candidate, Thesis title: “Quantifying the impact of the Leeuwin Current on the ecology and biogeochemistry of the Ningaloo Reef”, University of Western Australia, Perth, Australia
2005-2006: Masters Degree, Oceanology, Thesis title: “Impact of climate changes on the dynamics of plankton in the Bay of Calvi, Corsica”, University of Liege (Ulg), Liege, Belgium
2004-2005: Masters Degree, Biological Sciences, Thesis title : “A study on the effects of microzooplankton grazing in the diurnal vertical migration of the toxic dinoflagellates Gymnodinium catenatum in the Huon Estuary (Tasmania)”, Faculte Universitaire Notre-Dame de la Paix (FUNDP), Namur, Belgium
2001-2003: Bachelor Degree, Biological Sciences, Faculte Universitaire Notre-Dame de la Paix (FUNDP), Namur, Belgium

2016 USRA Presidential Award
2013 NASA/GMAO Award for Outstanding Contribution by a new GMAO member
2011 World Climate Research Programme (WCRP) Presentation award
2010 Western Australian Marine Science Institute (WAMSI) award for best science based work
2009 Finalist of the IOC/UNESCO Awards
2009 American Society for Limonology and Oceanography (ASLO) Outstanding student presentation award
2008 Commonwealth Scientific and Industrial Research Organisation (CSIRO) Flagship
2008 WAMSI Node 3 top-up scholarship
2008 WAMSI Node1 top-up scholarship
2008 BHP-Billiton scholarship
2007 Biological Oceanography Scholarship
2006 Marie-Curie Studentship
2006 Docquier Grant

05/01/2020 - 04/30/2023 NASA PACE Science Team, NASA, NASA NRA #: NNH19ZDA001N-PACESAT
Phytoplankton Algorithms and Data Assimilation: Preparing a Pre-launch Path to Exploit PACE Spectral Data; Principal Investigator
10/01/2013 - 09/30/2016 A.31 Interdisciplinary Research in earth Science, NASA, NASA NRA #: NNH12ZDA001N-IDS - Feedbacks, Processes and Impacts of Contemporary Changes in the Arctic (Co-I)
10/01/2012 - 09/30/2015 Ocean Biology and Biogeochemistry, NASA, NASA NRA #: NNH12ZDA001N-OBB
- Variation in phytoplankton composition associated with ENSO diversity in the Equatorial Pacific Ocean (Co-I);
07/17/2014 Carbon Monitoring System: Continuing Prototype Product Development, Research, and Scoping, NASA, NASA NRA #: NNH14ZDA001N-CMS - GEOS-Carb II: Delivering Carbon Flux and Concentration Products Based on the GEOS Modeling System (Co-I);
10/01/2014 - 09/30/2017 PACE Science Team , NASA, NASA NRA #: 13-PACEST13-0007 - Phytoplankton Composition algorithms for PACE (PI);
10/01/2014 - 09/30/2017 Suomi National Polar-orbiting Partnership (NPP) Science Team and Science Investigator-led Processing Systems for Earth System Data Records From Suomi NPP, NASA, NASA NRA #: 13-SNPP13-0038 - Combining Data Assimilation with an algorithm to Improve the Consistency of VIIRS Chlorophyll: Toward a Multidecadal, Multisensor Global Record (Co-I);
09/30/2019 Ocean Biology and Biogeochemistry (NNH15ZDA01N-OBB), NASA, NASA NRA #: NNH15ZDA01N-OBB -
Observation-System Simulation Experiments (OSSEs) and seasonal forecasts to support EXPORTS (PI); 10/01/2012 Carbon Monitoring System (NNH11ZDA001N-CMS), NASA, NASA NRA #: NNH11ZDA001N-CMS - GEOS-Carb: A framework for Monitoring Carbon Concentrations and Fluxes (Co-I);
10/01/2016 Interdisciplinary Science, NASA, NASA NRA #: NNH16ZDA001N-IDS - "Integrating remote sensing observations with NASA’s GEOS-5 modeling framework in support of retrospective analyses and seasonal prediction of biosphere-atmosphere CO2 flux (Co-I);
10/01/2016 Modeling, Analysis, and Prediction, NASA, NASA NRA #: NNH16ZDA001N-MAP - Global modeling of nitrous oxide and its isotopologues in the GEOS-5 atmosphere-ocean model (Co-I);
10/01/2016 Modeling, Analysis, and Prediction, NASA, NASA NRA #: NNH16ZDA001N-MAP - Seasonal Forecast of Ocean Biogeochemistry using GEOS-5 (PI)

Jeremy Werdell, P., L. I. McKinna, E. Boss, et al. 2018. "An overview of approaches and challenges for retrieving marine inherent optical properties from ocean color remote sensing." Progress in Oceanography, 160: 186–212 [10.1016/j.pocean.2018.01.001]

Muller-Karger, F. E., E. Hestir, C. Ade, et al. 2018. "Satellite sensor requirements for monitoring essential biodiversity variables of coastal ecosystems." Ecological Applications, 28 (3): 749-760 [10.1002/eap.1682]

Gregg, W. W., and C. S. Rousseaux. 2017. "Simulating PACE Global Ocean Radiances." Frontiers in Marine Science, 4: [10.3389/fmars.2017.00060]

Gregg, W. W., C. S. Rousseaux, and B. A. Franz. 2017. "Global trends in ocean phytoplankton: a new assessment using revised ocean colour data." Remote Sensing Letters, 8 (12): 1102-1111 [10.1080/2150704x.2017.1354263]

Rousseaux, C. S., and W. W. Gregg. 2017. "Forecasting Ocean Chlorophyll in the Equatorial Pacific." Frontiers in Marine Science, 4: [10.3389/fmars.2017.00236]

Gregg, W. W., and C. S. Rousseaux. 2016. "Directional and Spectral Irradiance in Ocean Models: Effects on Simulated Global Phytoplankton, Nutrients, and Primary Production." Frontiers in Marine Science, 3: [10.3389/fmars.2016.00240]

Ott, L. E., S. Pawson, G. J. Collatz, et al. 2015. "Assessing the magnitude of CO2 flux uncertainty in atmospheric CO2 records using products from NASA's Carbon Monitoring Flux Pilot Project." Journal of Geophysical Research - Atmospheres, 120: 734-765 [doi:10.1002/2014JD022411]

Thompson, P. A., P. Bonham, P. Thomson, et al. 2015. "Climate variability drives plankton community composition changes: the 2010–2011 El Niño to La Niña transition around Australia." J. Plankton Res., 37 (5): 966-984 [10.1093/plankt/fbv069]

Blakey, T., A. M. Melesse, and C. S. Rousseaux. 2015. "Toward connecting subtropical algal blooms to freshwater nutrient sources using a long-term, spatially distributed, in situ chlorophyll-a record." Catena, 133: 119–127 [Full Text (Link)] [10.1016/j.catena.2015.05.001]

Rousseaux, C. S., and W. W. Gregg. 2015. "Recent decadal trends in global phytoplankton composition." Global Biogeochemical Cycles, 29 (10): 1674–1688 [10.1002/2015GB005139]

Rousseaux, C. S., and W. W. Gregg. 2014. "Interannual Variation in Phytoplankton Primary Production at A Global Scale." Remote Sensing, 6 (1): 1-19 [10.3390/rs6010001]

Gregg, W. W., N. W. Casey, and C. S. Rousseaux. 2014. "Sensitivity of simulated global ocean carbon flux estimates to forcing by reanalysis products." Ocean Modelling, 80: 24-35 [10.1016/j.ocemod.2014.05.002]

Gregg, W. W., and C. S. Rousseaux. 2014. "Decadal Trends in Global Pelagic Ocean Chlorophyll: A New Assessment Integrating Multiple Satellites, In Situ Data, and Models." Journal of Geophysical Research: Oceans, 119 (9): 5921–5933 [10.1002/2014JC010158]

Rousseaux, C. S., T. Hirata, and W. W. Gregg. 2013. "Satellite views of global phytoplankton community distributions using an empirical algorithm and a numerical model." Biogeosciences Discussions, 10 (1): 1083-1109 [10.5194/bgd-10-1083-2013]

Rousseaux, C. S., and W. W. Gregg. 2012. "Climate variability and phytoplankton composition in the Pacific Ocean." J. Geophys. Res., 117 (C10): C10006 [10.1029/2012JC008083]

Wernberg, T., D. A. Smale, F. Tuya, et al. 2012. "An extreme climatic event alters marine ecosystem structure in a global biodiversity hotspot." Nature Climate change, 3 (1): 78-82 [10.1038/nclimate1627]

Rousseaux, C. S., R. Lowe, M. Feng, A. M. Waite, and P. A. Thompson. 2012. "The role of the Leeuwin Current and mixed layer depth on the autumn phytoplankton bloom off Ningaloo Reef, Western Australia." Continental Shelf Research, 32: 22-35 [10.1016/j.csr.2011.10.010]

Langlois, T. J., B. T. Radford, K. P. Van Niel, et al. 2011. "Consistent abundance distributions of marine fishes in an old, climatically buffered, infertile seascape." Global Ecology and Biogeography, 21 (9): 886-897 [10.1111/j.1466-8238.2011.00734.x]

Rousseaux, C. S., and W. W. Gregg. 2014. "The effects of chlorophyll assimilation on carbon fluxes in a global biogeochemical model." NASA Technical Report Series on Global Modeling and Data Assimilation 33:

Rousseaux, C. S., and W. W. Gregg. 2014. "The Power of Three [in "Beyond 9 billion"]." International Innovation 155: [Full Text (Link)]

Gregg, W. W., N. W. Casey, and C. S. Rousseaux. 2013. "Global Surface Ocean Carbon Estimates in a Model Forced by MERRA." NASA Technical Report Series on Global Modeling and Data Assimilation 31: 39.