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Hydrological Sciences

Emmanuel Phillippe Dinnat

(RESEARCH AST, OCEANOGRAPHIC STUDIES)

Emmanuel Phillippe Dinnat's Contact Card & Information.
Email: emmanuel.dinnat@nasa.gov
Phone: 301.614.6871
Org Code: 615
Address:
NASA/GSFC
 Mail Code 615
 Greenbelt, MD 20771
Employer:
NASA

Missions & Projects

Brief Bio

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

Dr. Dinnat is a Research Oceanographer with the Cryospheric Sciences Laboratory at NASA Goddard Space Flight Center (GSFC), in Greenbelt, MD, 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

Earth Science: Remote Sensing

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

Radiative transfer modeling

Earth Science: Theory & 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)

Earth Science: Salinity

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

Ocean freshening in the Polar Regions

Earth Science: Cryosphere / Earth's Ice Cover

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

Earth Science: Hydrology / Water Cycle

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

Current Projects

Reference Quality Model For Ocean Surface Emissivity And Backscatter From The Microwave To The Infrared

Remote Sensing

Satellite observations are vital for the initialisation of Numerical Weather Prediction models, that are in turn essential for protection of life and property and minimising impact of dangerous weather events. They are also very important for climate monitoring and prediction, as well as other application areas such as hydrology and flood awareness prediction. It is not possible to sound the lower troposphere from space without accurate knowledge of the radiative contribution from the earth’s surface. The lack of a reference quality ocean emission and backscatter model is a major gap in our ability to provide absolute calibration of the satellite based observing system.

This project, supported by the International Space Science Institute (ISSI), aims at addressing this gap collaboratively.

More information is available at :


http://www.issibern.ch/teams/oceansurfemiss/

Final Meeting Summary, Bulletin of the American Meteorological Society (BAMS)

Aquarius calibration and algorithm for Sea Surface Salinity retrieval

Salinity

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

Remote Sensing

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

Remote Sensing

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.

Special Issue "Sea Surface Salinity Remote Sensing"

Salinity

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

Positions/Employment

Research Fellow

European Space Agency (ESA) European Space Research and Technical Centre (ESTEC) - Noordwijk, The Netherlands

May 2003 - March 2005

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.

Research Associate

National Research Council - Greenbelt, MD

2005 - 2005

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.

Postdoctoral Fellow

Oak Ridge Associated Universities (ORAU) - Greenbelt, MD

2006 - 2007

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

Assistant Research Scientist

Goddard Earth Sciences and Technology Center/University of Maryland Baltimore County (GEST/UMBC) - Greenbelt, MD

2007 - 2010

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.

Research Scientist

Chapman University - Greenbelt, MD

2010 - November 2022

Dr. Dinnat joined the Center of Excellence in Earth Systems Modeling & Observation (CEESMO) at Chapman University, CA, in 2010. He worked on L-band radiometry and scatterometry applied to ocean and land remote sensing, assessing and improving the calibration of the radiometers of the NASA missions Aquarius and Soil Moisture Active Passive (SMAP), as well as working in the intercalibration of SMOS Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) and Aquarius. He validated and improved salinity products from Aquarius, SMOS and SMAP by improving forward radiative transfer models and retrieval algorithms.

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

Senior Member

2012 - Present

American Geophysical Union

Member

2006 - Present

Awards

2024 Goddard Space Flight Center – Hydrosphere, Biosphere and Geophysics Lab

          Scientific Achievement for Contributions to SMAP and Aquarius Cal/Val

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

Editorial Appointments

  • Editorial Board Member for Remote Sensing
  • Associate Editor for IEEE Transactions on Geoscience and Remote Sensing (TGRS)
  • Guest Editor for Remote Sensing


Conference Activities

  • Session Chair at the Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment  (MicroRad) conference in Alexandria, VA, USA (2024) : Electromagnetic Modeling
  • Session chair at the IEEE International Symposium on Geoscience and Remote Sensing (IGARSS), Pasadena, CA, July (2023): Sea Surface Salinity
  • Session Organizer/Chair at the Photonics & Electromagnetics Research Symposium (PIERS), Hangzhou, China (2022) : Microwave Remote Sensing of the Water Cycle
  • Session Chair, IEEE International Geoscience and Remote Sensing Symposium, Yokohama, Japan (2019) : Ocean Surface Salinity and Temperature
  • 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) : 1/ Microwave Radiometer Calibration, 2/ 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

Publications

Refereed

2025. "The Dielectric Constant of Sea Water at P-Band for Salinity From 0 to 150 pss." IEEE Transactions on Geoscience and Remote Sensing 63 1-11 [10.1109/tgrs.2025.3532180] [Journal Article/Letter]

2024. "P Band Seawater Dielectric Measurements at Low and High Salinities." IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium 5839-5842 [10.1109/igarss53475.2024.10641522] [Proceedings]

2024. "Look Angle Correction for SMAP L-Band Radiometer Using Geolocation Measurements." IEEE Transactions on Geoscience and Remote Sensing 1-1 [10.1109/tgrs.2024.3405811] [Journal Article/Letter]

2024. "The Dielectric Constant of Sea Water and Extension to High Salinity." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 17 5911-5919 [10.1109/jstars.2024.3369552] [Journal Article/Letter]

2023. "Development of the SURface Fast Emissivity Model for Ocean (SURFEM‐Ocean) Based on the PARMIO Radiative Transfer Model." Earth and Space Science 10 (11): [10.1029/2022ea002785] [Journal Article/Letter]

2023. "The Dielectric Constant of Sea Water and Extension to High Salinity." IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium [10.1109/igarss52108.2023.10282199] [Proceedings]

2023. "New Seawater Dielectric Constant Parametrization and Application to SMOS Retrieved Salinity." IEEE Transactions on Geoscience and Remote Sensing 61 1-13 [10.1109/tgrs.2023.3257923] [Journal Article/Letter]

2023. "PARMIO: A reference quality model for ocean surface emissivity and backscatter from the microwave to the infrared." Bulletin of the American Meteorological Society [10.1175/bams-d-23-0023.1] [Journal Article/Letter]

2022. "The Fourth Stokes Parameter for Geolocation in Passive Microwave Remote Sensing From Space." IEEE Transactions on Geoscience and Remote Sensing 60 1-11 [10.1109/tgrs.2022.3215094] [Journal Article/Letter]

2022. "Status of the Dielectric Constant of Sea Water at L-Band for Remote Sensing of Salinity." IEEE Transactions on Geoscience and Remote Sensing 60 1-14 [10.1109/tgrs.2022.3207944] [Journal Article/Letter]

2022. "Multi-frequency radiometer-based soil moisture retrieval and algorithm parameterization using in situ sites." Remote Sensing of Environment 279 113113 [10.1016/j.rse.2022.113113] [Journal Article/Letter]

2022. "SMAP Calibration Using Cold Sky Observations." IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium [10.1109/igarss46834.2022.9884569] [Proceedings]

2022. "Measurement of SST and SSS Using Frequencies in the Range 0.3–2.0 GHz." Radio Science 57 (4): [10.1029/2021rs007415] [Journal Article/Letter]

2022. "Sensitivity of Wide Bandwidth Radiometer for Remote Sensing of Ocean Salinity." IEEE Transactions on Geoscience and Remote Sensing 60 (5301517): 1-17 [10.1109/tgrs.2021.3101962] [Journal Article/Letter]

2021. "Spurious Signal in SMAP Fourth Stokes Parameter." IEEE Transactions on Geoscience and Remote Sensing 59 (11): 9472-9485 [10.1109/tgrs.2020.3035335] [Journal Article/Letter]

2021. "Soil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer Post-Launch Calibration Revisit: Approach and Performance." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 14 11406-11416 [10.1109/jstars.2021.3121176] [Journal Article/Letter]

2021. "Wide Bandwidth Radiometer Sensitivity for Remote Sensing of Ocean Salinity." 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS [10.1109/igarss47720.2021.9554549] [Proceedings]

2021. "Revisiting the Global Patterns of Seasonal Cycle in Sea Surface Salinity." Journal of Geophysical Research: Oceans 126 (4): [10.1029/2020jc016789] [Journal Article/Letter]

2021. "Seawater Debye Model Function at L-Band and Its Impact on Salinity Retrieval From Aquarius Satellite Data." IEEE Transactions on Geoscience and Remote Sensing 1-14 [10.1109/tgrs.2020.3045771] [Journal Article/Letter]

2021. "Microwave Radiometry at Frequencies from 500 to 1400 MHz: An Emerging Technology for Earth Observations." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 1-1 [10.1109/jstars.2021.3073286] [Journal Article/Letter]

2020. "Correcting Sea Surface Temperature Spurious Effects in Salinity Retrieved From Spaceborne L-Band Radiometer Measurements." IEEE Transactions on Geoscience and Remote Sensing 1-14 [10.1109/tgrs.2020.3030488] [Journal Article/Letter]

2020. "Reference-Quality Emission and Backscatter Modeling for the Ocean." Bulletin of the American Meteorological Society 101 (10): E1593-E1601 [10.1175/bams-d-20-0085.1] [Journal Article/Letter]

2020. "The Multifrequency Future for Remote Sensing of Sea Surface Salinity from Space." Remote Sensing 12 (9): 1381 [10.3390/rs12091381] [Journal Article/Letter]

2020. "Sea surface salinity estimates from spaceborne L-band radiometers: An overview of the first decade of observation (2010–2019)." Remote Sensing of Environment 242 (October 2019): 111769 [10.1016/j.rse.2020.111769] [Journal Article/Letter]

2020. "Space‐Based Observations for Understanding Changes in the Arctic‐Boreal Zone." Reviews of Geophysics 58 (1): 2019RG000652 [10.1029/2019rg000652] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

2019. "Sea Surface Salinity Distribution in the Southern Ocean as Observed from Space." Journal of Geophysical Research: Oceans 2018JC014510 [10.1029/2018jc014510] [Journal Article/Letter]

2018. "Status of Aquarius and Salinity Continuity." Remote Sensing 10 (10): 1585 [10.3390/rs10101585] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

2014. "Aquarius: Status and recent results." Radio Science 49 (9): 709-720 [10.1002/2014rs005505] [Journal Article/Letter]

2014. "Aquarius: Status and recent results." Radio Science 49 (9): 709–720 [10.1002/2014RS005505] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

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] [Journal Article/Letter]

2013. "Aquarius Third Stokes Parameter Measurements: Initial Results." IEEE Geosci. Remote Sensing Lett. 10 (3): 520-524 [10.1109/LGRS.2012.2211994] [Journal Article/Letter]

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] [Journal Article/Letter]

2011. "The Aquarius Simulator and Cold-Sky Calibration." IEEE Trans. Geosci. Remote Sensing 49 (9): 3198-3210 [10.1109/TGRS.2011.2161481] [Journal Article/Letter]

2010. "Background emissions during cold sky calibration of Aquarius." 2010 11th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment [10.1109/microrad.2010.5559551] [Proceedings]

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] [Journal Article/Letter]

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 [Journal Article/Letter]

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 [Journal Article/Letter]

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] [Journal Article/Letter]

2005. "Absolute calibration of radar altimeters : Consistency with electromagnetic modeling." Journal of Atmospheric and Oceanic Technology 22 (6): 771-781 [10.1175/JTECH1743.1] [Journal Article/Letter]

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 [Journal Article/Letter]

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 [Journal Article/Letter]

2004. "Ionospheric effects for L-band 2-D interferometric radiometry." IEEE Transactions on Geoscience and Remote Sensing 42 (1): 105-118 [Journal Article/Letter]

2003. "Issues concerning the sea emissivity modeling at L-band for retrieving surface salinity." Radio Science 38 (4): 25-1--25-11 [Journal Article/Letter]

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 [Journal Article/Letter]

Non-Refereed

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] [Proceedings]

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) [Proceedings]

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] [Proceedings]

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] [Proceedings]

2014. "Aquarius overview and update." General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI [10.1109/URSIGASS.2014.6929699] [Proceedings]

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] [Proceedings]

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] [Proceedings]

2008. "Simulation of the AQUARIUS Radar Scatterometer." Proceedings of the XXIXth URSI General Assembly 4 pp. [Proceedings]

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] [Proceedings]

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] [Proceedings]

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 [Proceedings]

2006. "Aquarius Mission Technical Overview." Geoscience and Remote Sensing Symposium, 2006. IGARSS 2006. IEEE International Conference on 1678 - 1680 [10.1109/IGARSS.2006.434] [Other]

Other Professional Information

Fluent in: French, English, Matlab.

Contact Us

John Bolten
Chief
301-614-6529
john.bolten@nasa.gov
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Project Support Specialist
301-614-5734
kathleen.j.regul@nasa.gov

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