Dr. Eric C Hackert

Dr. Eric C Hackert

  • Research AST, Oceanographic Studies
  • 301.614.5874
  • NASA/GSFC
  • Mail Code: 610.1
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    Dr. Eric Hackert graduated from the University of Wisconsin in 1984 with a M.S. in Meteorology. He joined Center for Ocean-Land-Atmosphere Studies (COLA) at the University of Maryland (UMD) in 1985 where he helped to devise optimal interpolation techniques to assimilate in situ data into an early version of SODA. In May 1989, Eric moved to NASA/Goddard Space Flight Center and worked in the Laboratory for Hydrospheric Processes. In this capacity, he focused on dynamical ocean model development and validation, reduced-space Kalman filter data assimilation, wind sensitivity studies, and data analysis/validation of satellite altimetry. In October 2000, Eric joined Earth System Science Interdisciplinary Center (ESSIC) at the UMD. A main focus during 2000-2008 was the development of the Ensemble Reduced Order Kalman Filter data assimilation technique and subsequent completion of ocean observation sensitivity studies. During 2008-2014, he focused on full utilization of sea surface salinity (SSS) for oceanographic studies. In 2016, Eric received his Ph.D. in Oceanography through the Accomplished Scientist Program at the UMD. His research concentrated on determining the impact of Indian Ocean Sector on El Niño-Southern Oscillation (ENSO) predictability via the oceanic contribution, the atmospheric teleconnection, and via data assimilation. In addition, he confirmed that assimilation of Aquarius satellite SSS improved ENSO predictability.

    Since joining the GMAO in Jan 2017, Eric has participated in the development of the ocean data assimilation system (ODAS) that is integrated with the current coupled forecast system. He has contributed to finalizing the optimal version of the reanalysis experiment and he has helped build code to initialize seasonal forecasts. Besides working on developing the ODAS, Eric is currently a principal investigator on the NASA Ocean Salinity Science Team with funding to explore the impacts of satellite SSS on ENSO prediction. He has found that Aquarius and SMAP SSS assimilation leads to more accurate representation of large-scale ocean waves and better ENSO forecasts. Eric will continue to develop and extend methods to assimilate ocean salinity observations into ocean models and use these results to advance scientific understanding of the Earth System. He will continue to study the coupled atmosphere-ocean dynamics of the El Niño-Southern Oscillation phenomenon.

    Current Projects

    Improving GEOS Seasonal to subseasonal prediction capability, adding SSS relaxation/assimilation, and working towards fully coupled (atmosphere/ocean) assimilation into GEOS_S2S-v2.1

    Role of Sea Surface Salinity (SSS) and subsurface salinity assimilation into ocean/hybrid coupled models using the Ensemble Reduced Order Kalman Filter assimilation technique.

    Research Interests

    Impact of the Indian Ocean on coupled ENSO predictions by both ocean teleconnections and atmospheric bridge

    Satellite data analysis - ocean topography/altimetry, sea surface salinity and ocean vector winds

    Dynamical ocean modeling, Ensemble Reduced-Order Kalman Filter data assimilation, hybrid coupled modeling, ocean model development and validation, and ocean data analysis

    Reduced-space Kalman filter data assimilation into a reduced-gravity dynamical ocean model, observing system simulation experiments (OSSEs) for tropical array design

    Satellite altimetry analysis and validation (Geosat to present), wind sensitivity studies, analysis of wind and hydrographic data.

    OI data assimilation of hydrographic data into ocean model, quality control analysis on hydrographic data.

    Education

    • June 2016: PhD Oceanography Atmospheric and Oceanic Sciences, Accomplished Scientist Program, University of Maryland, College Park (Advisor Busalacchi).
    • December 1984: M.S. Meteorology, University of Wisconsin, Madison (Advisor Hastenrath).
    • May 1982: B.S. Physical Sciences, University of Maryland, College Park.
     

    Positions/Employment

    1/2017 - Present

    Research Oceanographer

    GMAO, Goddard Space Flight Center, Greenbelt, MD
    9/2016 - 1/2017

    Visiting Assistant Research Scientist

    ESSIC University of Maryland, College Park, MD.
    10/2000 - 9/2016

    Senior Faculty Specialist/Assistant Research Scientist

    ESSIC University of Maryland, College Park, MD.
    5/1989 - 10/2000

    Principal Scientist/Section Manager

    Raytheon ITSS and Lab. for Hydrospheric Processes, Goddard Space Flight Center, Greenbelt, MD.
    2/1985 - 5/1989

    Faculty Research Assistant

    Center for Ocean, Land and Atmosphere, University of Maryland, College Park, MD.

    Grants

    04/17/2017 - 04/16/2020 Impacts of Sea Surface Salinity on El Nino/Southern Oscillation Prediction, NASA Ocean Salinity Science Team, NASA NRA #: NNH16ZDA001N-OSST
    PI ; 0.47 FTE
    Grant Amount: $402862
    03/30/2016 - 03/29/2019 The Role of the Indian Ocean Sector in Prediction of the Coupled Indo-Pacific System, NASA Physical Oceanography, NASA NRA #: NNX16AH62G
    PI (Grant canceled due to leaving ESSIC) ; 0.58 FTE
    Grant Amount: $648286
    06/01/2012 - 05/31/2016 Role of Off-Equatorial Variability for Decadal Predictability of the Coupled Pacific System, NASA Physical Oceanography, NASA NRA #: NNX13MA61G
    Co-I, Institutional PI ; 0.42 FTE
    Grant Amount: $439619
    03/01/2009 - 02/28/2013 Spatio-Temporal Variability and Error Structure of Sea Surface Salinity in the Tropics, NASA Ocean Salinity Science Team, NASA NRA #: NNX09AU74G
    Co-I, Institutional PI ; 0.25 FTE
    Grant Amount: $659,680
    06/01/2008 - 05/31/2011 Application of Scatterometry, Satellite Sea Surface Temperature, and Altimetry Measurements to Improved Understanding and Prediction of Indo-Pacific Coupling, NASA Physical Oceanography, NASA NRA #: NNX09AF41G
    Co-I, Grant Manager ; 0.42 FTE
    Grant Amount: $673,337
    06/01/2007 - 05/31/2010 Implementation of Satellite Sea Surface Salinity Data into Ocean and Coupled Models, NASA Physical Oceanography, NASA NRA #: NNX08AI76G
    Co-I, Grant Manager ; 0.42 FTE
    Grant Amount: $512,682

    Publications

    Refereed

    Hackert, E. C., A. J. Busalacchi, J. Carton, et al. R. Murtugudde, P. Arkin, and M. N. Evans. 2017. "The role of the Indian Ocean sector for prediction of the coupled Indo-Pacific system: Impact of atmospheric coupling." Journal of Geophysical Research: Oceans, 122 (4): 2813-2829 [10.1002/2016jc012632]

    Schollaert Uz, S., A. J. Busalacchi, T. M. Smith, et al. M. N. Evans, C. W. Brown, and E. C. Hackert. 2017. "Interannual and decadal variability in tropical Pacific chlorophyll from a statistical reconstruction: 1958-2008." Journal of Climate, 30: 7293-7315 [10.1175/JCLI-D-16-0202.1]

    Hackert, E., A. J. Busalacchi, and J. Ballabrera-Poy. 2014. "Impact of Aquarius sea surface salinity observations on coupled forecasts for the tropical Indo-Pacific Ocean." Journal of Geophysical Research: Oceans, 119 (7): 4045-4067 [10.1002/2013jc009697]

    Hackert, E., J. Ballabrera-Poy, A. J. Busalacchi, R.-H. Zhang, and R. Murtugudde. 2011. "Impact of sea surface salinity assimilation on coupled forecasts in the tropical Pacific." Journal of Geophysical Research, 116 (C5): C05009 [10.1029/2010jc006708]

    Hackert, E., J. Ballabrera-Poy, A. J. Busalacchi, R.-H. Zhang, and R. Murtugudde. 2007. "Comparison between 1997 and 2002 El Niño events: Role of initial state versus forcing." Journal of Geophysical Research, 112 (C1): C01005 [10.1029/2006jc003724]

    Hackert, E., J. Ballabrera-Poy, A. J. Busalacchi, R.-H. Zhang, and R. Murtugudde. 2007. "Role of the initial ocean state for the 2006 El Niño." Geophysical Research Letters, 34 (9): [10.1029/2007gl029452]

    Hackert, E. C., A. J. Busalacchi, and R. Murtugudde. 2001. "A wind comparison study using an ocean general circulation model for the 1997-1998 El Niño." Journal of Geophysical Research: Oceans, 106 (C2): 2345-2362 [10.1029/1999jc000055]

    Hackert, E. C., R. N. Miller, and A. J. Busalacchi. 1998. "An optimized design for a moored instrument array in the tropical Atlantic Ocean." Journal of Geophysical Research: Oceans, 103 (C4): 7491-7509 [10.1029/97jc03206]

    Hackert, E. C., and S. Hastenrath. 1986. "Mechanisms of Java Rainfall Anomalies." Monthly Weather Review, 114 (4): 745-757 [10.1175/1520-0493(1986)114<0745:mojra>2.0.co;2]

    Selected Public Outreach

    A New Look at the 2015-2016 El Niño 6 / 2017 - Present
    https://gmao.gsfc.nasa.gov/research/science_snapshots/2017/2015-16_el_nino.php

    Professional Societies

    American Geophysical Union, 1989 - Present

    Professional Service

    Editors Citation for Excellence in Refereeing, JGR Oceans, May 2008

    Reviewer for Progress in Oceanography, JGR Oceans, Ocean Modeling, Bulletin of American Meteorology Society, Journal of Marine Research, Monthly Weather Review, Journal of Climate, Remote Sensing of Environment, and Scientific Reports .

    NASA Panel Review Committee
     

    Brief Bio

    Dr. Eric Hackert graduated from the University of Wisconsin in 1984 with a M.S. in Meteorology. He joined Center for Ocean-Land-Atmosphere Studies (COLA) at the University of Maryland (UMD) in 1985 where he helped to devise optimal interpolation techniques to assimilate in situ data into an early version of SODA. In May 1989, Eric moved to NASA/Goddard Space Flight Center and worked in the Laboratory for Hydrospheric Processes. In this capacity, he focused on dynamical ocean model development and validation, reduced-space Kalman filter data assimilation, wind sensitivity studies, and data analysis/validation of satellite altimetry. In October 2000, Eric joined Earth System Science Interdisciplinary Center (ESSIC) at the UMD. A main focus during 2000-2008 was the development of the Ensemble Reduced Order Kalman Filter data assimilation technique and subsequent completion of ocean observation sensitivity studies. During 2008-2014, he focused on full utilization of sea surface salinity (SSS) for oceanographic studies. In 2016, Eric received his Ph.D. in Oceanography through the Accomplished Scientist Program at the UMD. His research concentrated on determining the impact of Indian Ocean Sector on El Niño-Southern Oscillation (ENSO) predictability via the oceanic contribution, the atmospheric teleconnection, and via data assimilation. In addition, he confirmed that assimilation of Aquarius satellite SSS improved ENSO predictability.

    Since joining the GMAO in Jan 2017, Eric has participated in the development of the ocean data assimilation system (ODAS) that is integrated with the current coupled forecast system. He has contributed to finalizing the optimal version of the reanalysis experiment and he has helped build code to initialize seasonal forecasts. Besides working on developing the ODAS, Eric is currently a principal investigator on the NASA Ocean Salinity Science Team with funding to explore the impacts of satellite SSS on ENSO prediction. He has found that Aquarius and SMAP SSS assimilation leads to more accurate representation of large-scale ocean waves and better ENSO forecasts. Eric will continue to develop and extend methods to assimilate ocean salinity observations into ocean models and use these results to advance scientific understanding of the Earth System. He will continue to study the coupled atmosphere-ocean dynamics of the El Niño-Southern Oscillation phenomenon.

    Publications

    Refereed

    Hackert, E. C., A. J. Busalacchi, J. Carton, et al. R. Murtugudde, P. Arkin, and M. N. Evans. 2017. "The role of the Indian Ocean sector for prediction of the coupled Indo-Pacific system: Impact of atmospheric coupling." Journal of Geophysical Research: Oceans 122 (4): 2813-2829 [10.1002/2016jc012632]

    Schollaert Uz, S., A. J. Busalacchi, T. M. Smith, et al. M. N. Evans, C. W. Brown, and E. C. Hackert. 2017. "Interannual and decadal variability in tropical Pacific chlorophyll from a statistical reconstruction: 1958-2008." Journal of Climate 30 7293-7315 [10.1175/JCLI-D-16-0202.1]

    Hackert, E., A. J. Busalacchi, and J. Ballabrera-Poy. 2014. "Impact of Aquarius sea surface salinity observations on coupled forecasts for the tropical Indo-Pacific Ocean." Journal of Geophysical Research: Oceans 119 (7): 4045-4067 [10.1002/2013jc009697]

    Hackert, E., J. Ballabrera-Poy, A. J. Busalacchi, R.-H. Zhang, and R. Murtugudde. 2011. "Impact of sea surface salinity assimilation on coupled forecasts in the tropical Pacific." Journal of Geophysical Research 116 (C5): C05009 [10.1029/2010jc006708]

    Hackert, E., J. Ballabrera-Poy, A. J. Busalacchi, R.-H. Zhang, and R. Murtugudde. 2007. "Comparison between 1997 and 2002 El Niño events: Role of initial state versus forcing." Journal of Geophysical Research 112 (C1): C01005 [10.1029/2006jc003724]

    Hackert, E., J. Ballabrera-Poy, A. J. Busalacchi, R.-H. Zhang, and R. Murtugudde. 2007. "Role of the initial ocean state for the 2006 El Niño." Geophysical Research Letters 34 (9): [10.1029/2007gl029452]

    Hackert, E. C., A. J. Busalacchi, and R. Murtugudde. 2001. "A wind comparison study using an ocean general circulation model for the 1997-1998 El Niño." Journal of Geophysical Research: Oceans 106 (C2): 2345-2362 [10.1029/1999jc000055]

    Hackert, E. C., R. N. Miller, and A. J. Busalacchi. 1998. "An optimized design for a moored instrument array in the tropical Atlantic Ocean." Journal of Geophysical Research: Oceans 103 (C4): 7491-7509 [10.1029/97jc03206]

    Hackert, E. C., and S. Hastenrath. 1986. "Mechanisms of Java Rainfall Anomalies." Monthly Weather Review 114 (4): 745-757 [10.1175/1520-0493(1986)114<0745:mojra>2.0.co;2]

                                                                                                                                                                                            
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