Dr. Emmanuel Phillippe Dinnat

Dr. Emmanuel Phillippe Dinnat

  • RESEARCH SCIENTIST
  • 301.614.6871 | 301.614.5558
  • NASA/GSFC
  • Mail Code: 615
  • Greenbelt , MD 20771
  • Employer: CHAPMAN UNIVERSITY
  • Brief Bio

    Emmanuel P. Dinnat (Ph.D. University Pierre and Marie Curie, Paris VI, France)

    Dr. Dinnat is currently a Research Scientist with the NASA Goddard Space Flight Center (GSFC), in Greenbelt, MD, USA, and Chapman University, Orange, CA, USA. He was born in Sarcelles, France, in 1975. He received a master of advanced studies degree in instrumental methods in astrophysics and spatial applications (1999), and the Ph.D. degree in computer science, telecommunications, and electronics (2003) from the University Pierre and Marie Curie in Paris, France. He was a research fellow at the European Space Agency (ESA) European Space Research and Technical Centre (ESTEC) in Noordwijk, The Netherlands, from 2003 to 2005. He joined the NASA-GSFC in 2005 to work on the Aquarius instrument under the NASA Postdoctoral Program, first with the National Research Council (NRC) and then with the Oak Ridge Associated Universities (ORAU) from 2006-2007. He was an Assistant Research Scientist with the Goddard Earth Sciences and Technology Center/University of Maryland Baltimore County (GEST/UMBC) between 2007 and 2010. 

    Dr. Dinnat's current research interests include combined active and passive microwave remote sensing, radiative transfer modeling, scattering from rough surfaces, sea surface salinity and oceanic processes in the Polar Regions.

    Dr. Dinnat received the GSFC's Hydrospheric and Biospheric Sciences Laboratory peer review awards for outstanding Post-Doc/Research Associate and outstanding publication in 2006 and 2008, respectively. He received two NASA group achievement awards as a member of the Aquarius commissioning and calibration/validation teams in 2012 and 2013, respectively. Dr. Dinnat is a member of the American Geophysical Union (AGU) and a senior member of the Institute of Electrical and Electronics Engineers (IEEE).
     

    Research Interests

    Combined active and passive microwave remote sensing at L-band

    Using coincident and collocated scatterometer and radiometer measurements to study the oceans and the cryosphere (Aquarius/SAC-D and SMAP missions).

    Radiative transfer modeling

    Modelling signals emitted and scattered at Earth's various surfaces (ocean, land and ice), modified through the atmosphere and measured by the antenna.

    Sea surface salinity (SSS)

    Using L-band radiometer and scatterometer to retrieve sea surface salinity (Aquarius/SAC-D mission).

    Ocean freshening in the Polar Regions

    Using Aquarius and in-situ (ship, buoys, drifting floats) sea surface salinity measurements to detect the signals of ice melt and freeze.

    Remote sensing of soil moisture

    Using remote sensing at L-band to infer soil moisture (Aquarius/SAC-D and SMAP missions).

    Current Projects

    Special Issue "Sea Surface Salinity Remote Sensing"

    The purpose of this special issue is to gather contributions highlighting ongoing research related to remote sensing of sea surface salinity from spaceborne or airborne sensors, as well as combined use of satellite SSS with other observations (e.g. altimeter, SST, ...). In situ or laboratory measurements in support of improving forward models and retrieval algorithms are also welcome. Applied and theoretical research contributions concerning the multiple aspects of remote sensing of sea surface salinity will be considered.

    The Special Issue can be found at the following address:

    https://www.mdpi.com/journal/remotesensing/special_issues/sea_salinity

    Aquarius calibration and algorithm for Sea Surface Salinity retrieval

    The objective of the project is to improve the calibration and the retrieval algorithm for the Aquarius radiometers in order to address the remaining error in Aquarius SSS products. Part of the project focuses on cold sky calibration maneuvers that have proved successful in the past in assessing the temporal drift and absolute bias, and refining the knowledge on the antenna spillover that is an important source of error in the absolute calibration. The project also aims at improving the calibration at the so-called "warm-end" of the brightness temperatures (i.e. over land and ice), correcting the SSS error dependence on sea surface temperature and the small biases between the three Aquarius beams. The SSS at high latitudes will be improved by correcting for the impact of sea ice presence in the Aquarius footprint.

    Soil Moisture Active-Passive (SMAP) calibration/validation

    This project addresses the post launch calibration of the SMAP radiometer. Specific issues include correcting for extraneous sources such as the galactic background and Sun, calibration of the polarimetric channels and their use to correct for Faraday rotation, and use of the cold sky and ocean for calibration. The goal is to facilitate an absolute calibration of the radiometer data that includes the effects of the radiometer antenna and covers the range from cold sky to land/frozen ground.

    Inter-comparison and calibration of SMOS and Aquarius

    This project aims at comparing L-band radiometric measurements from Aquarius and the ESA's Soil Moisture and Ocean Salinity (SMOS) mission, as well as the science products (sea surface salinity, soil moisture). Inter-calibration is being performed over oceans, ice and land surfaces to ensure proper dynamic response of the instruments. Part of the work is to flag and discard potential Radio Frequency Interference (RFI) corrupted samples for both instruments that could potentially impact inter-calibration efforts. Differences in the Geophysical Model Function (e.g. dielectric constant, roughness models) and ancillary data (e.g. sea surface temperature) for both instruments are being assessed. Comparison with in situ salinities (e.g. Argo, ice breaker vessels in high latitudes) provides a quality assessment for both calibrations.

    Positions/Employment

    5/2003 - 3/2005

    Research Fellow

    European Space Agency (ESA) European Space Research and Technical Centre (ESTEC), Noordwijk, The Netherlands Dr. Dinnat joined the European Space Agency (ESA) European Space Research and Technical Centre (ESTEC) in 2003 after completing his Ph.D. He studied the use of both passive and active L-band instruments for the retrieval of sea surface salinity in the frame of the development of the Soil Moisture and Ocean Salinity (SMOS) mission. He performed numerical simulations using radiative transfer models and helped organize measurements campaigns involving in-situ measurements onboard ships and airborne measurements.
    2005 - 2005

    Research Associate

    National Research Council, Greenbelt, MD Dr. Dinnat joined the Hydrospheric and Biospheric Sciences Laboratory at the NASA Goddard Space Flight Center (GSFC) in 2005 under the NASA Postdoctoral Program (NPP)  with the National Research Council (NRC) to work on the development of the Aquarius instrument. He started to develop a numerical radiative transfer model in order to simulate the instrument's measurements (i.e. antenna temperature) that accounts for the emission of the Earth oceans and land surfaces, the contributions by the atmosphere, the effects of the antenna patterns, and the impact of extra-terrestrial sources such as  the Sun, the moon and  the celestial sky.
    2006 - 2007

    Postdoctoral Fellow

    Oak Ridge Associated Universities (ORAU), Greenbelt, MD Dr. Dinnat joined the Oak Ridge Associated Universities (ORAU) in 2006, still under the NASA Postdoctoral Program (NPP). He continued his previous work on the Aquarius simulator, and studied the effects of the antenna pattern on Aquarius measurements in terms of biases and land contamination
    2007 - 2010

    Assistant Research Scientist

    Goddard Earth Sciences and Technology Center/University of Maryland Baltimore County (GEST/UMBC), Greenbelt, MD Dr. Dinnat joined the Goddard Earth Sciences and Technology Center (GEST) at University of Maryland Baltimore County (UMBC) in 2007 where he continued his work on the Aquarius instrument, assessing various source of errors such as radiation from the Sun and the Moon and the effects of the ionosphere.
    2010 - Present

    Research Scientist

    Chapman University, Greenbelt, MD Dr. Dinnat joined the Center of Excellence in Earth Systems Modeling & Observation (CEESMO) at Chapman University, CA, in 2010. He has since continued his work on L-band radiometry and scatterometry, working with the Aquarius data since the instruments turn on and assessing calibration and temporal drift. He has also been working on the intercalibration of SMOS Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) and Aquarius. More recently, he has been involved in pre-launch  studies of the NASA Soil Moisture Active Passive (SMAP) mission.

    Education

    Ph.D. in computer science, telecommunications, and electronics - Laboratoire d'Océanographie DYnamique et de Climatologie (LODYC)/University Paris 6, 2003
    Thesis: On the determination of sea surface salinity from microwave radiometric measurements at L-band

    Master of Advanced Studies in instrumental methods in astrophysics and spatial applications - Astrophysics Institute of Paris/University Paris 6, 1999
    Thesis: Profils d'entropie spécifique dans les galaxies elliptiques et dans le gaz X des amas de galaxies



    Professional Societies

    Institute of Electrical and Electronics Engineers, 2012 - Present
    Senior Member
    American Geophysical Union, 2006 - Present
    Member

    Awards

    2019 Goddard Space Flight Center – Hydrosphere, Biosphere and Geophysics Lab
               Scientific Achievement for Contributions to Remote Sensing of Sea Surface Salinity

    2017 Goddard Space Flight Center - Hydrosphere, Biosphere, and Geophysics Lab
               Continued high-level scientific support to Aquarius

    2017 NASA Group Achievement Award
               SMAP Science and Cal/Val Team

    2013  NASA Group Achievement Award
               Aquarius Science Calibration and Validation Team

    2012 NASA Group Achievement Award
              AQ Launch, Early Orbit Ops, and Commissioning Team

    2008 NASA Goddard Space Flight Center
             Peer Award for outstanding publication

    2006 NASA Goddard Space Flight Center
             Peer Award for outstanding Post-Doc/Research Associate
     

    Professional Service

    Conference Activities

    • Session Chair, 15th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment, Cambridge, MA, U.S.A. (2018)
      - Instrument Calibration
    • Session Chair, IEEE International Geoscience and Remote Sensing Symposium, Fort Worth, TX, U.S.A. (2017)
      - Microwave Radiometer Calibration, - Ocean Temperature
    • Session Chair, IEEE International Geoscience and Remote Sensing Symposium, Milan, Italy (2015)
    • Session Chair, XXXI General Assembly of the International Union of Radio Science (URSI), Beijing, China (2014)
    • Session Chair and Co-Chair (3 sessions), IEEE International Geoscience and Remote Sensing Symposium, Quebec, Canada (2014)
    • Session Chair and Co-Chair (2 sessions), The 13th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Pasadena, CA, USA (2014).

    Technical Reviewer

    • Reviewer Journal of Geophysical Research
    • Reviewer IEEE Transactions on Geoscience and Remote Sensing
    • Reviewer IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
    • Reviewer IEEE Geoscience and Remote Sensing Letters
    • Reviewer Remote Sensing of Environment
    • Reviewer Sensors
    • NASA ROSES review panel
    • Guest Editor for the journal Remote Sensing

    Publications

    Refereed

    Dinnat, E., D. Le Vine, J. Boutin, T. Meissner, and G. Lagerloef. 2019. "Remote Sensing of Sea Surface Salinity: Comparison of Satellite and In Situ Observations and Impact of Retrieval Parameters." Remote Sensing, 11 (7): 750 [10.3390/rs11070750]

    Peng, J., S. Misra, J. R. Piepmeier, et al. E. P. Dinnat, S. H. Yueh, T. Meissner, D. M. Le Vine, K. E. Shelton, A. P. Freedman, R. S. Dunbar, S. K. Chan, R. Bindlish, G. De Amici, P. N. Mohammed, L. Hong, D. Hudson, and T. Jackson. 2019. "Soil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer Post-Launch Calibration Upgrade." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 1-12 [10.1109/jstars.2019.2902492]

    Garcia‐Eidell, C., J. C. Comiso, E. Dinnat, and L. Brucker. 2019. "Sea Surface Salinity Distribution in the Southern Ocean as Observed from Space." Journal of Geophysical Research: Oceans, 2018JC014510 [10.1029/2018jc014510]

    Le Vine, D. M., E. P. Dinnat, T. Meissner, et al. F. J. Wentz, H.-Y. Kao, G. Lagerloef, and T. Lee. 2018. "Status of Aquarius and Salinity Continuity." Remote Sensing, 10 (10): 1585 [10.3390/rs10101585]

    Garcia-Eidell, C., J. C. Comiso, E. Dinnat, and L. Brucker. 2017. "Satellite observed salinity distributions at high latitudes in the Northern Hemisphere: A comparison of four products." Journal of Geophysical Research: Oceans, [10.1002/2017jc013184]

    Zhou, Y., R. H. Lang, E. P. Dinnat, and D. M. Le Vine. 2017. "L-Band Model Function of the Dielectric Constant of Seawater." IEEE Transactions on Geoscience and Remote Sensing, 55 (12): 6964-6974 [10.1109/tgrs.2017.2737419]

    Peng, J., S. Misra, J. R. Piepmeier, et al. E. P. Dinnat, D. Hudson, D. M. Le Vine, G. De Amici, P. N. Mohammed, R. Bindlish, S. H. Yueh, T. Meissner, and T. J. Jackson. 2017. "Soil Moisture Active/Passive L-Band Microwave Radiometer Postlaunch Calibration." IEEE Transactions on Geoscience and Remote Sensing, 1-16 [10.1109/tgrs.2017.2705342]

    Dinnat, E. P., and L. Brucker. 2017. "Improved Sea Ice Fraction Characterization for L-Band Observations by the Aquarius Radiometers." IEEE Transactions on Geoscience and Remote Sensing, 1-20 [10.1109/tgrs.2016.2622011]

    Boutin, J., Y. Chao, W. E. Asher, et al. T. Delcroix, R. Drucker, K. Drushka, N. Kolodziejczyk, T. Lee, N. Reul, G. Reverdin, J. Schanze, A. Soloviev, L. Yu, J. Anderson, L. Brucker, E. Dinnat, A. S. Garcia, W. L. Jones, C. Maes, T. Meissner, W. Tang, N. Vinogradova, and B. Ward. 2016. "Satellite and In Situ Salinity : Understanding Near-Surface Stratification and Sub-footprint Variability." Bulletin of the American Meteorological Society, 97 (8): 1391–1407 [10.1175/bams-d-15-00032.1]

    Yin, X., J. Boutin, E. Dinnat, Q. Song, and A. Martin. 2016. "Roughness and foam signature on SMOS-MIRAS brightness temperatures: A semi-theoretical approach." Remote Sensing of Environment, 180: 221–233 [10.1016/j.rse.2016.02.005]

    Dinnat, E. P., D. M. Le Vine, J. R. Piepmeier, S. T. Brown, and L. Hong. 2015. "Aquarius L-band Radiometers Calibration Using Cold Sky Observations." IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing, 1-17 [10.1109/jstars.2015.2496362]

    Le Vine, D. M., E. P. Dinnat, T. Meissner, et al. S. H. Yueh, F. J. Wentz, S. E. Torrusio, and G. Lagerloef. 2015. "Status of Aquarius/SAC-D and Aquarius Salinity Retrievals." IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing, PP (99): 1-15 [10.1109/jstars.2015.2427159]

    Colliander, A., E. P. Dinnat, D. M. Le Vine, C.-S. Chae, and J. Kainulainen. 2015. "Assessing Long-Term Stability of SMOS Zero-Baseline Antenna Temperature Using the Aquarius Antenna Temperature Simulator." Geoscience and Remote Sensing Letters, IEEE, [doi: 10.1109/LGRS.2015.24]

    Vernieres, G. R., R. M. Kovach, C. L. Keppenne, et al. S. R. Akella, L. Brucker, and E. P. Dinnat. 2014. "The impact of the assimilation of Aquarius sea surface salinity data in the GEOS ocean data assimilation system." J. Geophys. Res. Oceans, 119 (10): 6974-6987 [10.1002/2014JC010006]

    Le Vine, D. M., E. P. Dinnat, G. S. Lagerloef, et al. P. de Matthaeis, S. Abraham, C. Utku, and H. Kao. 2014. "Aquarius: Status and recent results." Radio Science, 49 (9): 709-720 [10.1002/2014rs005505]

    Le Vine, D. M., E. P. Dinnat, E. Lagerloef, et al. P. de Matthaeis, S. Abraham, S. Utku, and H. Kao. 2014. "Aquarius: Status and recent results." Radio Science, 49 (9): 709–720 [10.1002/2014RS005505]

    Martin, A. C., J. Boutin, D. Hauser, and E. P. Dinnat. 2014. "Active-passive synergy for interpreting ocean L-band emissivity: Results from the CAROLS airborne campaigns." Journal of Geophysical Research: Oceans, 119 (8): 4940-4957 [10.1002/2014JC009890]

    Brucker, L., E. P. Dinnat, G. Picard, and N. Champollion. 2014. "Effect of Snow Surface Metamorphism on Aquarius L-Band Radiometer Observations at Dome C, Antarctica." IEEE Transactions on Geoscience and Remote Sensing, 52 (11): 7408-7417 [10.1109/TGRS.2014.2312102]

    Brucker, L., E. P. Dinnat, and L. S. Koenig. 2014. "Weekly gridded Aquarius L-band radiometer/scatterometer observations and salinity retrievals over the polar regions – Part 2: Initial product analysis." The Cryosphere, 8 (3): 915-930 [10.5194/tc-8-915-2014]

    Brucker, L., E. P. Dinnat, and L. S. Koenig. 2014. "Weekly gridded Aquarius L-band radiometer/scatterometer observations and salinity retrievals over the polar regions – Part 1: Product description." The Cryosphere, 8 (3): 905-913 [10.5194/tc-8-905-2014]

    Le Vine, D., S. Abraham, C. Utku, and E. P. Dinnat. 2013. "Aquarius Third Stokes Parameter Measurements: Initial Results." IEEE Geosci. Remote Sensing Lett., 10 (3): 520-524 [10.1109/LGRS.2012.2211994]

    Le Vine, D. M., E. P. Dinnat, S. D. Jacob, S. Abraham, and P. de Matthaies. 2011. "Impact of Antenna Pattern on Measurement of the Third Stokes Parameter From Space at L-Band." IEEE Trans. Geoscience and Remote Sensing, 49 (1): 406-414 [10.1109/TGRS.2010.2051953]

    Le Vine, D. M., E. P. Dinnat, S. Abraham, P. Matthaeis, and F. Wentz. 2011. "The Aquarius Simulator and Cold-Sky Calibration." IEEE Trans. Geosci. Remote Sensing, 49 (9): 3198-3210 [10.1109/TGRS.2011.2161481]

    Dinnat, E. P., S. Abraham, D. M. Le Vine, P. De Matthaeis, and S. D. Jacob. 2009. "Effect of Emission From the Moon on Remote Sensing of Sea Surface Salinity: An Example With the Aquarius Radiometer." IEEE Geosci. Remote Sensing Lett., 6 (2): 239-243 [10.1109/LGRS.2008.2008822]

    Dinnat, E. P., and D. M. Le Vine. 2008. "Impact of sun glint on salinity remote sensing: An example with the Aquarius radiometer." IEEE Transactions on Geoscience and Remote Sensing, 46 (10): 3137–3150.

    Le Vine, D. M., D. S. Jacob, E. P. Dinnat, P. de Matthaeis, and S. Abraham. 2007. "The influence of antenna pattern on Faraday rotation in remote sensing at L-band." IEEE Transactions on Geoscience and Remote Sensing, 45 (9): 2737–2746.

    Dinnat, E. P., and D. M. Le Vine. 2007. "Effects of the antenna aperture on remote sensing of sea surface salinity at L-band." IEEE Transactions on Geoscience and Remote Sensing, 45 (7): 2051 – 2060 [10.1109/TGRS.2007.890807]

    Caudal, G., E. P. Dinnat, and J. Boutin. 2005. "Absolute calibration of radar altimeters : Consistency with electromagnetic modeling." Journal of Atmospheric and Oceanic Technology, 22 (6): 771-781 [10.1175/JTECH1743.1]

    Etcheto, J., E. P. Dinnat, J. Boutin, et al. A. Camps, J. Miller, S. Contardo, J. Wesson, and D. Long. 2004. "Wind speed effect on L-band brightness temperature inferred from EuroSTARRS and WISE 2001 field experiments." IEEE Transactions on Geoscience and Remote Sensing, 42 (10): 2206-2213.

    Boutin, J., P. Waldteufel, N. Martin, G. Caudal, and E. P. Dinnat. 2004. "Salinity retrieved from SMOS measurements over global ocean: Imprecisions due to surface roughness and temperature uncertainties." Journal of Atmospheric and Oceanic Technology, 21 (9): 1432-1447.

    Waldteufel, P., N. Floury, E. P. Dinnat, and G. Caudal. 2004. "Ionospheric effects for L-band 2-D interferometric radiometry." IEEE Transactions on Geoscience and Remote Sensing, 42 (1): 105-118.

    Dinnat, E. P., J. Boutin, G. Caudal, and J. Etcheto. 2003. "Issues concerning the sea emissivity modeling at L-band for retrieving surface salinity." Radio Science, 38 (4): 25-1--25-11.

    Dinnat, E. P., J. Boutin, G. Caudal, J. Etcheto, and P. Waldteufel. 2002. "Influence of sea surface emissivity model parameters at L-band for the estimation of salinity." International Journal of Remote Sensing, 23 (23): 5117-5122.

    Non-Refereed

    Dinnat, E. P., J. Boutin, X. Yin, et al. D. M. Le Vine, P. Waudteufel, and J.-L. Vergely. 2014. "Comparison of SMOS and Aquarius Sea Surface Salinity and analysis of possible causes for the differences." General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI 1-4 [10.1109/URSIGASS.2014.6929701]

    Dinnat, E. P., J. Boutin, X. Yin, and D. M. Le Vine. 2014. "Inter-comparison of SMOS and Aquarius sea surface salinity, and effects of the dielectric constant and vicarious calibration." Microwave Radiometry and Remote Sensing of the Environment (MicroRad)

    Dinnat, E. P., D. M. Le Vine, R. Bindlish, and J. R. Piepmeier. 2014. "Aquarius whole range calibration: Celestial Sky, ocean, and land targets." Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2014 13th Specialist Meeting on 192 - 196 [10.1109/MicroRad.2014.6878937]

    Le Vine, D. M., J. R. Piepmeier, E. P. Dinnat, et al. P. de Matthaeis, C. Utku, S. Abraham, G. S. Lagerloef, T. Meissner, and F. Wenz. 2014. "Aquarius radiometer status." Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2014 13th Specialist Meeting on 226 - 227 [10.1109/MicroRad.2014.6878945]

    Le Vine, D. M., G. S. Lagerloef, P. de Matthaeis, E. P. Dinnat, and S. Abraham. 2014. "Aquarius overview and update." General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI [10.1109/URSIGASS.2014.6929699]

    Dinnat, E. P., D. M. Le Vine, S. Abraham, and P. de Matthaeis. 2012. "Comparison of Aquarius Measurements and Radiative Transfer Models at L-band." 2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) 1-4 [10.1109/MicroRad.2012.6185231]

    Le Vine, D. M., G. S. Lagerloef, C. Ruf, et al. F. Wentz, S. Yueh, J. Piepmeier, E. Lindstrom, and E. P. Dinnat. 2012. "Aquarius: The instrument and initial results." 2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) 1-3 [10.1109/MicroRad.2012.6185226]

    de Matthaeis, P., D. M. Le Vine, E. P. Dinnat, D. S. Jacob, and S. Abraham. 2008. "Simulation of the AQUARIUS Radar Scatterometer." Proceedings of the XXIXth URSI General Assembly 4 pp.

    Dinnat, E. P., D. M. Le Vine, and S. Abraham. 2008. "L-band radiometry and reflection of the galaxy by a rough ocean surface ." Microwave Radiometry and Remote Sensing of the Environment (MICRORAD) 2008 1-4, ISBN: 978-1-4244-1986-9 . [10.1109/MICRAD.2008.4579494]

    Le Vine, D. M., S. Abraham, S. D. Jacob, E. P. Dinnat, and P. de Matthaeis. 2007. "The influence of antenna pattern on Faraday rotation in remote sensing at L-band." IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2007 239 - 242 , ISBN: 978-1-4244-1211-2 . [10.1109/IGARSS.2007.4422774 ]

    Le Vine, D. M., G. S. Lagerloef, S. Yueh, et al. F. Pellerano, E. P. Dinnat, and F. Wentz. 2006. "Aquarius Mission Technical Overview." Geoscience and Remote Sensing Symposium, 2006. IGARSS 2006. IEEE International Conference on 1678 - 1680 [10.1109/IGARSS.2006.434]

    Dinnat, E. P., and D. M. Le Vine. 2006. "Effects of the Antenna Aperture on Remote Sensing of Sea Surface Salinity at L-band." Proc 9th Specialist Meeting on Microwave Radiometry and Remote Sensing Applications San Juan.

    Talks, Presentations and Posters

    Invited

    Comparison of SMOS and Aquarius sea surface salinity and analysis of possible causes for the differences 8 / 2014
    E. P. Dinnat, J. Boutin, X. Yin, D. Le Vine, P. Waldteufel, and J.-L. Vergely
    XXXIst URSI General Assembly and Scientific Symposium, Beijing, China
    Aquarius overview and update 8 / 2014
    D. M. Le Vine, G. S. E. Lagerloef, P. de Matthaeis1, E. P. Dinnat, S. Abraham
    XXXIst URSI General Assembly and Scientific Symposium, Beijing, China
    The impact of dielectric constant model and surface reference on differences between SMOS and Aquarius sea surface salinity 7 / 2014
    E. P. Dinnat, J. Boutin, X. Yin, and D. Le Vine
    IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2014), Quebec, Canada
    Aquarius cold sky maneuvers: assessing calibration bias, temporal drift, and antenna back lobes 7 / 2013
    E. P. Dinnat, D. Le Vine, and S. Abraham
    IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2013), Melbourne, Australia
    Comparisons of Aquarius measurements over oceans with radiative transfer models at L-band 7 / 2012
    E. P. Dinnat, D. Le Vine, S. Abraham, and P. de Matthaeis
    IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2012), Munich, Germany
    The need for high resolution wind products for airborne radiometric campaigns dedicated to roughness studies: a practical example at L-band 7 / 2006
    E. P. Dinnat, J. Boutin, J. Miller, D. Long, S. Contardo, and J. Wesson
    IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2006), Denver, CO, USA.

    Other

    SMOS SSS uncertainties associated with errors on auxiliary parameters 4 / 2014
    X. Yin, J. Boutin, E. P. Dinnat, N. Martin, and S. Guimbard
    European Geophysical Union (EGU) General Assembly, Vienna, Austria
    Advances in calibration of the SMOS zero-baseline radiometers 3 / 2014
    A. Colliander, J. Kainulainen, E. Dinnat, C.-S. Chae, F. Torres, I. Corbella, R. Oliva, and M. Martin-Neira
    Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Pasadena, CA, USA
    Aquarius whole range calibration: Celestial Sky, ocean, and land targets 3 / 2014
    E. P. Dinnat, D. Le Vine, R. Bindlish, and J. Piepmeier
    Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Pasadena, CA, USA
    Inter-comparison of SMOS and Aquarius sea surface salinity, and effects of the dielectric constant and vicarious calibration 3 / 2014
    E. P. Dinnat, J. Boutin, X. Yin, and D. M. Le Vine
    Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Pasadena, CA, USA
    Aquarius radiometer status 3 / 2014
    D. Le Vine, E. P. Dinnat, J. Piepmeier, P. de Matthaeis, S. Abraham, G. Lagerloef, T. Meissner, and F. Wentz
    Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Pasadena, CA, USA
    A comparative study of Stokes parameters from Aquarius and SMOS measurements 3 / 2014
    C.-S. Chae, S. T. Brown, A. Colliander, S. Misra, X. Xu, S. H. Yueh, and E. P. Dinnat
    Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Pasadena, CA, USA
    Effect of snow surface change on L-band observations at Dome C, Antarctica 3 / 2014
    L. Brucker, E. P. Dinnat, G. Picard, and N. Champollion
    Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Pasadena, CA, USA
    Weekly-gridded Aquarius radiometer and scatterometer products over the polar regions: Cryospheric applications 3 / 2014
    L. Brucker, E. P. Dinnat, and L. Koenig
    Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Pasadena, CA, USA
    Assessment of the Aquarius space-borne sea surface salinity retrievals in polar ocean 3 / 2014
    L. Brucker, E. P. Dinnat, G. Vernières, R. Kovach, and L. Koenig
    Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Pasadena, CA, USA
    Active-passive synergy for interpreting ocean L-band radiometric signal: results from airborne measurements 2 / 2014
    A. Martin, J. Boutin, D. Hauser, and E. Dinnat
    American Geophysical Union (AGU) Ocean Sciences Meeting, Honolulu, HI, USA
    Aquarius for the polar regions: a new gridded product and its analysis over the cryosphere 12 / 2013
    L. Brucker, E. Dinnat, L. Koenig, S. M. Hakkinen, G. Picard, G. Vernières, A. Borovikov, R. Kovach, and N. Champollion
    American Geophysical Union (AGU), Fall meeting, San Francisco, USA
    Synthesizing SMOS zero-baselines with Aquarius brightness temperature simulator 7 / 2013
    A. Colliander, E. P. Dinnat, D. Le Vine, and J. Kainulainen
    IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Munich, Germany
    Aquarius cold sky maneuvers: assessing calibration bias, temporal drift, and antenna back lobes 7 / 2013
    E. P. Dinnat, D. Le Vine, and S. Abraham
    IEEE International Geoscience and Remote Sensing Symposium, Melbourne, Australia
    Comparisons of Aquarius measurements over oceans with radiative transfer models at L-band 7 / 2012
    E. P. Dinnat, D. Le Vine, S. Abraham, and P. de Matthaeis
    IEEE International Geoscience and Remote Sensing Symposium, Munich, Germany
    Aquarius radiometer calibration and on-orbit assessment 3 / 2012
    J. Piepmeier, D. Levine, E. Dinnat, L. Hong, S. Brown, S. Misra, S. Yueh, T. Meissner, F. Wentz, A. Mims, C. Ruf, and G. Lagerloef
    Microwave Radiometry and Remote Sensing of the Environment (MicroRad), Rome, Italy

    Other Professional Information

    Fluent in: French, English, Matlab.

    Brief Bio

    Emmanuel P. Dinnat (Ph.D. University Pierre and Marie Curie, Paris VI, France)

    Dr. Dinnat is currently a Research Scientist with the NASA Goddard Space Flight Center (GSFC), in Greenbelt, MD, USA, and Chapman University, Orange, CA, USA. He was born in Sarcelles, France, in 1975. He received a master of advanced studies degree in instrumental methods in astrophysics and spatial applications (1999), and the Ph.D. degree in computer science, telecommunications, and electronics (2003) from the University Pierre and Marie Curie in Paris, France. He was a research fellow at the European Space Agency (ESA) European Space Research and Technical Centre (ESTEC) in Noordwijk, The Netherlands, from 2003 to 2005. He joined the NASA-GSFC in 2005 to work on the Aquarius instrument under the NASA Postdoctoral Program, first with the National Research Council (NRC) and then with the Oak Ridge Associated Universities (ORAU) from 2006-2007. He was an Assistant Research Scientist with the Goddard Earth Sciences and Technology Center/University of Maryland Baltimore County (GEST/UMBC) between 2007 and 2010. 

    Dr. Dinnat's current research interests include combined active and passive microwave remote sensing, radiative transfer modeling, scattering from rough surfaces, sea surface salinity and oceanic processes in the Polar Regions.

    Dr. Dinnat received the GSFC's Hydrospheric and Biospheric Sciences Laboratory peer review awards for outstanding Post-Doc/Research Associate and outstanding publication in 2006 and 2008, respectively. He received two NASA group achievement awards as a member of the Aquarius commissioning and calibration/validation teams in 2012 and 2013, respectively. Dr. Dinnat is a member of the American Geophysical Union (AGU) and a senior member of the Institute of Electrical and Electronics Engineers (IEEE).
     

    Publications

    Refereed

    Dinnat, E., D. Le Vine, J. Boutin, T. Meissner, and G. Lagerloef. 2019. "Remote Sensing of Sea Surface Salinity: Comparison of Satellite and In Situ Observations and Impact of Retrieval Parameters." Remote Sensing 11 (7): 750 [10.3390/rs11070750]

    Peng, J., S. Misra, J. R. Piepmeier, et al. E. P. Dinnat, S. H. Yueh, T. Meissner, D. M. Le Vine, K. E. Shelton, A. P. Freedman, R. S. Dunbar, S. K. Chan, R. Bindlish, G. De Amici, P. N. Mohammed, L. Hong, D. Hudson, and T. Jackson. 2019. "Soil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer Post-Launch Calibration Upgrade." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 1-12 [10.1109/jstars.2019.2902492]

    Garcia‐Eidell, C., J. C. Comiso, E. Dinnat, and L. Brucker. 2019. "Sea Surface Salinity Distribution in the Southern Ocean as Observed from Space." Journal of Geophysical Research: Oceans 2018JC014510 [10.1029/2018jc014510]

    Le Vine, D. M., E. P. Dinnat, T. Meissner, et al. F. J. Wentz, H.-Y. Kao, G. Lagerloef, and T. Lee. 2018. "Status of Aquarius and Salinity Continuity." Remote Sensing 10 (10): 1585 [10.3390/rs10101585]

    Garcia-Eidell, C., J. C. Comiso, E. Dinnat, and L. Brucker. 2017. "Satellite observed salinity distributions at high latitudes in the Northern Hemisphere: A comparison of four products." Journal of Geophysical Research: Oceans [10.1002/2017jc013184]

    Zhou, Y., R. H. Lang, E. P. Dinnat, and D. M. Le Vine. 2017. "L-Band Model Function of the Dielectric Constant of Seawater." IEEE Transactions on Geoscience and Remote Sensing 55 (12): 6964-6974 [10.1109/tgrs.2017.2737419]

    Peng, J., S. Misra, J. R. Piepmeier, et al. E. P. Dinnat, D. Hudson, D. M. Le Vine, G. De Amici, P. N. Mohammed, R. Bindlish, S. H. Yueh, T. Meissner, and T. J. Jackson. 2017. "Soil Moisture Active/Passive L-Band Microwave Radiometer Postlaunch Calibration." IEEE Transactions on Geoscience and Remote Sensing 1-16 [10.1109/tgrs.2017.2705342]

    Dinnat, E. P., and L. Brucker. 2017. "Improved Sea Ice Fraction Characterization for L-Band Observations by the Aquarius Radiometers." IEEE Transactions on Geoscience and Remote Sensing 1-20 [10.1109/tgrs.2016.2622011]

    Boutin, J., Y. Chao, W. E. Asher, et al. T. Delcroix, R. Drucker, K. Drushka, N. Kolodziejczyk, T. Lee, N. Reul, G. Reverdin, J. Schanze, A. Soloviev, L. Yu, J. Anderson, L. Brucker, E. Dinnat, A. S. Garcia, W. L. Jones, C. Maes, T. Meissner, W. Tang, N. Vinogradova, and B. Ward. 2016. "Satellite and In Situ Salinity : Understanding Near-Surface Stratification and Sub-footprint Variability." Bulletin of the American Meteorological Society 97 (8): 1391–1407 [10.1175/bams-d-15-00032.1]

    Yin, X., J. Boutin, E. Dinnat, Q. Song, and A. Martin. 2016. "Roughness and foam signature on SMOS-MIRAS brightness temperatures: A semi-theoretical approach." Remote Sensing of Environment 180 221–233 [10.1016/j.rse.2016.02.005]

    Dinnat, E. P., D. M. Le Vine, J. R. Piepmeier, S. T. Brown, and L. Hong. 2015. "Aquarius L-band Radiometers Calibration Using Cold Sky Observations." IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing 1-17 [10.1109/jstars.2015.2496362]

    Le Vine, D. M., E. P. Dinnat, T. Meissner, et al. S. H. Yueh, F. J. Wentz, S. E. Torrusio, and G. Lagerloef. 2015. "Status of Aquarius/SAC-D and Aquarius Salinity Retrievals." IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing PP (99): 1-15 [10.1109/jstars.2015.2427159]

    Colliander, A., E. P. Dinnat, D. M. Le Vine, C.-S. Chae, and J. Kainulainen. 2015. "Assessing Long-Term Stability of SMOS Zero-Baseline Antenna Temperature Using the Aquarius Antenna Temperature Simulator." Geoscience and Remote Sensing Letters, IEEE [doi: 10.1109/LGRS.2015.24]

    Vernieres, G. R., R. M. Kovach, C. L. Keppenne, et al. S. R. Akella, L. Brucker, and E. P. Dinnat. 2014. "The impact of the assimilation of Aquarius sea surface salinity data in the GEOS ocean data assimilation system." J. Geophys. Res. Oceans 119 (10): 6974-6987 [10.1002/2014JC010006]

    Le Vine, D. M., E. P. Dinnat, G. S. Lagerloef, et al. P. de Matthaeis, S. Abraham, C. Utku, and H. Kao. 2014. "Aquarius: Status and recent results." Radio Science 49 (9): 709-720 [10.1002/2014rs005505]

    Le Vine, D. M., E. P. Dinnat, E. Lagerloef, et al. P. de Matthaeis, S. Abraham, S. Utku, and H. Kao. 2014. "Aquarius: Status and recent results." Radio Science 49 (9): 709–720 [10.1002/2014RS005505]

    Martin, A. C., J. Boutin, D. Hauser, and E. P. Dinnat. 2014. "Active-passive synergy for interpreting ocean L-band emissivity: Results from the CAROLS airborne campaigns." Journal of Geophysical Research: Oceans 119 (8): 4940-4957 [10.1002/2014JC009890]

    Brucker, L., E. P. Dinnat, G. Picard, and N. Champollion. 2014. "Effect of Snow Surface Metamorphism on Aquarius L-Band Radiometer Observations at Dome C, Antarctica." IEEE Transactions on Geoscience and Remote Sensing 52 (11): 7408-7417 [10.1109/TGRS.2014.2312102]

    Brucker, L., E. P. Dinnat, and L. S. Koenig. 2014. "Weekly gridded Aquarius L-band radiometer/scatterometer observations and salinity retrievals over the polar regions – Part 2: Initial product analysis." The Cryosphere 8 (3): 915-930 [10.5194/tc-8-915-2014]

    Brucker, L., E. P. Dinnat, and L. S. Koenig. 2014. "Weekly gridded Aquarius L-band radiometer/scatterometer observations and salinity retrievals over the polar regions – Part 1: Product description." The Cryosphere 8 (3): 905-913 [10.5194/tc-8-905-2014]

    Le Vine, D., S. Abraham, C. Utku, and E. P. Dinnat. 2013. "Aquarius Third Stokes Parameter Measurements: Initial Results." IEEE Geosci. Remote Sensing Lett. 10 (3): 520-524 [10.1109/LGRS.2012.2211994]

    Le Vine, D. M., E. P. Dinnat, S. D. Jacob, S. Abraham, and P. de Matthaies. 2011. "Impact of Antenna Pattern on Measurement of the Third Stokes Parameter From Space at L-Band." IEEE Trans. Geoscience and Remote Sensing 49 (1): 406-414 [10.1109/TGRS.2010.2051953]

    Le Vine, D. M., E. P. Dinnat, S. Abraham, P. Matthaeis, and F. Wentz. 2011. "The Aquarius Simulator and Cold-Sky Calibration." IEEE Trans. Geosci. Remote Sensing 49 (9): 3198-3210 [10.1109/TGRS.2011.2161481]

    Dinnat, E. P., S. Abraham, D. M. Le Vine, P. De Matthaeis, and S. D. Jacob. 2009. "Effect of Emission From the Moon on Remote Sensing of Sea Surface Salinity: An Example With the Aquarius Radiometer." IEEE Geosci. Remote Sensing Lett. 6 (2): 239-243 [10.1109/LGRS.2008.2008822]

    Dinnat, E. P., and D. M. Le Vine. 2008. "Impact of sun glint on salinity remote sensing: An example with the Aquarius radiometer." IEEE Transactions on Geoscience and Remote Sensing 46 (10): 3137–3150

    Le Vine, D. M., D. S. Jacob, E. P. Dinnat, P. de Matthaeis, and S. Abraham. 2007. "The influence of antenna pattern on Faraday rotation in remote sensing at L-band." IEEE Transactions on Geoscience and Remote Sensing 45 (9): 2737–2746

    Dinnat, E. P., and D. M. Le Vine. 2007. "Effects of the antenna aperture on remote sensing of sea surface salinity at L-band." IEEE Transactions on Geoscience and Remote Sensing 45 (7): 2051 – 2060 [10.1109/TGRS.2007.890807]

    Caudal, G., E. P. Dinnat, and J. Boutin. 2005. "Absolute calibration of radar altimeters : Consistency with electromagnetic modeling." Journal of Atmospheric and Oceanic Technology 22 (6): 771-781 [10.1175/JTECH1743.1]

    Etcheto, J., E. P. Dinnat, J. Boutin, et al. A. Camps, J. Miller, S. Contardo, J. Wesson, and D. Long. 2004. "Wind speed effect on L-band brightness temperature inferred from EuroSTARRS and WISE 2001 field experiments." IEEE Transactions on Geoscience and Remote Sensing 42 (10): 2206-2213

    Boutin, J., P. Waldteufel, N. Martin, G. Caudal, and E. P. Dinnat. 2004. "Salinity retrieved from SMOS measurements over global ocean: Imprecisions due to surface roughness and temperature uncertainties." Journal of Atmospheric and Oceanic Technology 21 (9): 1432-1447

    Waldteufel, P., N. Floury, E. P. Dinnat, and G. Caudal. 2004. "Ionospheric effects for L-band 2-D interferometric radiometry." IEEE Transactions on Geoscience and Remote Sensing 42 (1): 105-118

    Dinnat, E. P., J. Boutin, G. Caudal, and J. Etcheto. 2003. "Issues concerning the sea emissivity modeling at L-band for retrieving surface salinity." Radio Science 38 (4): 25-1--25-11

    Dinnat, E. P., J. Boutin, G. Caudal, J. Etcheto, and P. Waldteufel. 2002. "Influence of sea surface emissivity model parameters at L-band for the estimation of salinity." International Journal of Remote Sensing 23 (23): 5117-5122

    Non-Refereed

    Dinnat, E. P., J. Boutin, X. Yin, et al. D. M. Le Vine, P. Waudteufel, and J.-L. Vergely. 2014. "Comparison of SMOS and Aquarius Sea Surface Salinity and analysis of possible causes for the differences." General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI 1-4 [10.1109/URSIGASS.2014.6929701]

    Dinnat, E. P., J. Boutin, X. Yin, and D. M. Le Vine. 2014. "Inter-comparison of SMOS and Aquarius sea surface salinity, and effects of the dielectric constant and vicarious calibration." Microwave Radiometry and Remote Sensing of the Environment (MicroRad)

    Dinnat, E. P., D. M. Le Vine, R. Bindlish, and J. R. Piepmeier. 2014. "Aquarius whole range calibration: Celestial Sky, ocean, and land targets." Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2014 13th Specialist Meeting on 192 - 196 [10.1109/MicroRad.2014.6878937]

    Le Vine, D. M., J. R. Piepmeier, E. P. Dinnat, et al. P. de Matthaeis, C. Utku, S. Abraham, G. S. Lagerloef, T. Meissner, and F. Wenz. 2014. "Aquarius radiometer status." Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2014 13th Specialist Meeting on 226 - 227 [10.1109/MicroRad.2014.6878945]

    Le Vine, D. M., G. S. Lagerloef, P. de Matthaeis, E. P. Dinnat, and S. Abraham. 2014. "Aquarius overview and update." General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI [10.1109/URSIGASS.2014.6929699]

    Dinnat, E. P., D. M. Le Vine, S. Abraham, and P. de Matthaeis. 2012. "Comparison of Aquarius Measurements and Radiative Transfer Models at L-band." 2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) 1-4 [10.1109/MicroRad.2012.6185231]

    Le Vine, D. M., G. S. Lagerloef, C. Ruf, et al. F. Wentz, S. Yueh, J. Piepmeier, E. Lindstrom, and E. P. Dinnat. 2012. "Aquarius: The instrument and initial results." 2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) 1-3 [10.1109/MicroRad.2012.6185226]

    de Matthaeis, P., D. M. Le Vine, E. P. Dinnat, D. S. Jacob, and S. Abraham. 2008. "Simulation of the AQUARIUS Radar Scatterometer." Proceedings of the XXIXth URSI General Assembly 4 pp.

    Dinnat, E. P., D. M. Le Vine, and S. Abraham. 2008. "L-band radiometry and reflection of the galaxy by a rough ocean surface ." Microwave Radiometry and Remote Sensing of the Environment (MICRORAD) 2008 1-4 [10.1109/MICRAD.2008.4579494]

    Le Vine, D. M., S. Abraham, S. D. Jacob, E. P. Dinnat, and P. de Matthaeis. 2007. "The influence of antenna pattern on Faraday rotation in remote sensing at L-band." IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2007 239 - 242 [10.1109/IGARSS.2007.4422774 ]

    Le Vine, D. M., G. S. Lagerloef, S. Yueh, et al. F. Pellerano, E. P. Dinnat, and F. Wentz. 2006. "Aquarius Mission Technical Overview." Geoscience and Remote Sensing Symposium, 2006. IGARSS 2006. IEEE International Conference on 1678 - 1680 [10.1109/IGARSS.2006.434]

    Dinnat, E. P., and D. M. Le Vine. 2006. "Effects of the Antenna Aperture on Remote Sensing of Sea Surface Salinity at L-band." Proc 9th Specialist Meeting on Microwave Radiometry and Remote Sensing Applications

                                                                                                                                                                                            
    NASA Logo, National Aeronautics and Space Administration