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Bryan M Karpowicz

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Bryan M Karpowicz

  • SCIENTIST
  • 301.614.5292
  • NASA/GSFC
  • Mail Code: 610.1
  • Greenbelt , MD 20771
  • Employer: UNIVERSITY OF MARYLAND BALTIMORE CO

    • Positions/Employment

    9/2018 - Present

    Senior Scientist

    Goddard Earth Sciences Technology and Research (GESTAR/GESTAR II), NASA Goddard Space Flight Center, Greenbelt, MD
    • Investigating the potential for improving Ozone Assimilation into GEOS Atmospheric Data Assimilation System using hyperspectral radiances such as CrIS, IASI, and AIRS spectrometers
    • Investigating improvements necessary to utilize Shortwave Infrared (SWIR) radiative transfer for sounding missions in the 4 μm region
    • General improvements to assimilation of remotely sensed observations
    5/2015 - 8/2018

    Meteorologist

    US Naval Research Laboratory Marine Meteorology Division (Civil Servant 7/2017-8/2018, Contractor Devine, Inc 5/2015-7/2017)., Monterey, CA
    • Conducted advanced atmospheric radiance assimilation research; including developing, testing, and evaluating methods to incorporate radiance assimilation capabilities; for improving passive microwave and IR data assimilation for the NAVGEM global NWP model
    • Conducted atmospheric remote sensing research with current, and new satellite sensors; such as GMI, SAPHIR, and AMSR2, AMSU-A, MHS, IASI, CrIS, and SSMIS; for incorporation into the NAVDAS-AR data assimilation system.
    • Developed, and tested end-to-end components for GMI, SAPHIR, AMSR2, and Windsat assimilation into NAVGEM
    • Focused on details regarding sensor implementation using radiative transfer incorporating the latest Community Radiative Transfer Model (CRTM) into the NAVGEM data assimilation scheme
    • Used advanced data assimilation methods such as correlated observation error studies related to NWP data assimilation
    • Responsible for the development of atmospheric vector winds assimilation methods for incorporating data from MISR, and Global AVHRR into the NAVGEM NWP model
    6/2011 - 5/2015

    Consultant (Part-time)

    Self, contracted by Southwest Research Institute, Various Locations
    • Developed new equation of state for the hydrogen-water vapor system for Jupiter’s atmosphere
    • Improving the interpretation of laboratory microwave opacity measurements
    • Developing an improved radiative transfer, and thermo-chemical model for interpretation of microwave emission measurements from the Juno microwave radiometer
    11/2011 - 9/2014

    Staff Scientist

    National Ecological Observatory Network, Inc. Airborne Observation Platform, Boulder, CO
    • Working with Visible/Near Infrared imaging spectrometer measurements to derive data products
    • Developing data products from aircraft remote sensing measurements which are traceable to heritage satellite sensors such as MISR, MODIS, and Landsat.
    • Evaluation of existing commercial atmospheric correction algorithms to support a visible / near-infrared imaging spectrometer
    •  Developed software and analysis to support laboratory development, and calibration activities
    • Supported integration, and flight activities including an imaging spectrometer, and LiDAR.
    12/2009 - 4/2011

    Senior Research Associate

    Atmospheric and Environmental Research (AER), Inc, Trace Gas Remote Sensing Group, Lexington, MA
    • Devopled analysis tools for prototype ASCENDS CO2 total column LIDAR
    • Developed analysis tools to compare GOSAT radiances to simulations
    • Sensitivity studies utilizing radiative transfer in the Jovian atmosphere

    Education

    Georgia Institute of Technology, Atlanta, GA

    Ph.D. in Earth and Atmospheric Sciences, December 2009 (defended, awarded May 2010).

    Master of Science, School of Earth and Atmospheric Sciences, May 2007

    Master of Science, Electrical and Computer Engineering, May 2003

    Rensselaer Polytechnic Institute, Troy, NY

    Bachelor of Science in Electrical Engineering, May 2001

    Publications

    Refereed

    Lee, E., R. Todling, B. M. Karpowicz, et al. J. Jin, A. Sewnath, and S. K. Park. 2022. "Assessment of Geo-Kompsat-2A Atmospheric Motion Vector Data and Its Assimilation Impact in the GEOS Atmospheric Data Assimilation System." Remote Sensing, 14 (21): 5287 [10.3390/rs14215287]

    Karpowicz, B. M., P. G. Stegmann, B. T. Johnson, et al. H. W. Christophersen, E. J. Hyer, A. Lambert, and E. Simon. 2022. "pyCRTM: A python interface for the community radiative transfer model." Journal of Quantitative Spectroscopy and Radiative Transfer, 288: 108263 [10.1016/j.jqsrt.2022.108263]

    McGrath-Spangler, E. L., W. McCarty, N. C. Privé, et al. I. Moradi, B. M. Karpowicz, and J. McCorkel. 2022. "Using OSSEs to Evaluate the Impacts of Geostationary Infrared Sounders." Journal of Atmospheric and Oceanic Technology, 39 (12): 1903-1918 [https://doi.org/10.1175/JTECH-D-22-0033.1]

    Karpowicz, B. M., Y. Zhu, S. J. Munchak, and W. McCarty. 2022. "Assessment of retrieved GMI emissivity over land, snow, and sea ice in the GEOS system." Journal of Atmospheric and Oceanic Technology, [10.1175/jtech-d-21-0187.1]

    Dolinar, E. K., J. R. Campbell, J. W. Marquis, A. E. Garnier, and B. M. Karpowicz. 2022. "Novel Parameterization of Ice Cloud Effective Diameter from Collocated CALIOP-IIR and CloudSat Retrievals." Journal of Applied Meteorology and Climatology, 61 (7): 891-907 [10.1175/jamc-d-21-0163.1]

    Stegmann, P. G., B. Johnson, I. Moradi, B. Karpowicz, and W. McCarty. 2022. "A deep learning approach to fast radiative transfer." Journal of Quantitative Spectroscopy and Radiative Transfer, 280: 108088 [10.1016/j.jqsrt.2022.108088]

    Karpowicz, B. M., W. McCarty, and K. Wargan. 2021. "Investigating the utility of hyperspectral sounders in the 9.6 μm band to improve ozone analyses." Quarterly Journal of the Royal Meteorological Society, [10.1002/qj.4198]

    Steffes, P. G., T. R. Hanley, B. M. Karpowicz, et al. K. Devaraj, S. Noorizadeh, D. Duong, G. Chinsomboon, A. Bellotti, M. A. Janssen, and S. J. Bolton. 2016. "High-Precision Laboratory Measurements Supporting Retrieval of Water Vapor, Gaseous Ammonia, and Aqueous Ammonia Clouds with the Juno Microwave Radiometer (MWR)." Space Science Reviews, 213 (1-4): 187-204 [10.1007/s11214-016-0265-0]

    Karpowicz, B. M., and P. G. Steffes. 2013. "Investigating the H2–He–H2O–CH4 equation of state in the deep troposphere of Jupiter." Icarus, 223 (1): 277-297 [10.1016/j.icarus.2012.11.026]

    Devaraj, K., P. G. Steffes, and B. M. Karpowicz. 2011. "Reconciling the centimeter- and millimeter-wavelength ammonia absorption spectra under jovian conditions: Extensive millimeter-wavelength measurements and a consistent model." Icarus, 212 (1): 224-235 [10.1016/j.icarus.2010.12.010]

    Karpowicz, B. M., and P. G. Steffes. 2011. "In search of water vapor on Jupiter: Laboratory measurements of the microwave properties of water vapor under simulated jovian conditions." Icarus, 212 (1): 210-223 [10.1016/j.icarus.2010.11.035]

    Hanley, T. R., P. G. Steffes, and B. M. Karpowicz. 2009. "A new model of the hydrogen and helium-broadened microwave opacity of ammonia based on extensive laboratory measurements." Icarus, 202 (1): 316-335 [10.1016/j.icarus.2009.02.002]

    Talks, Presentations and Posters

    AGU Annual Fall Meeting

     12 / 14 / 2021

    Karpowicz, B.M., Y. Zhu, and S.J. Munchak "Assessment of retrieved GMI emissivity over land, snow and sea ice in the GEOS system"

    23rd International TOVS Study Conference

     6 / 30 / 2021

    Karpowicz, B.M. and WIll McCarty "Assimilation of CrIS Shortwave Infrared Channels into the GEOS Atmospheric Data Assimilation System"

    American Geophysical Union, Annual Fall Meeting

     12 / 10 / 2019

    Karpowicz, B.M., W. McCarty, K. Wargan "Improved ozone analyses using direct assimilation of 9.6μm radiances from hyperspectral sounders"

    22nd International TOVS Study Conference

     11 / 4 / 2019

    Karpowicz, B.M., W. McCarty, K. Wargan "Improvements to Ozone Analyses using Hyperspectral Sounders in the 9.6 um Band"

    NASA Sounder Science Team Meeting

     9 / 27 / 2019

    Karpowicz, B.M., W. McCarty, K. Wargan "Improvements to Ozone Analyses using Hyperspectral Sounders in the 9.6 μm Band"

    17th JCSDA Technical Review Meeting and Science Workshop

     5 / 30 / 2019

    Karpowicz, B.M., W. McCarty, K. Wargan “Investigating the Utility of Hyperspectral Sounders in the 9.6 µm Band to Improve Analyses”

    IODA Workshop, Joint Center for Data Assimilation, Monterey, CA

     2 / 11 / 2019

    Will McCarty and Bryan Karpowicz, Atmospheric Observation Considerations for IODA at the GMAO

    2019 Annual AMS Meeting

     1 / 9 / 2019

    Erica K Dolinar, B. M. Karpowicz, J. R. Campbell, K. C. Viner, and X. Dong, "A New Cloud Ice Microphysical Parameterization Developed from CALIOP/CloudSat for Numerical Weather Prediction"

    21st International TOVS Study Conference

     11 / 2017

    Karpowicz, B.M., B.C. Ruston, S.D. Swadley, Microwave Radiance Assimilation at NRL: Advanced Techniques, Developments, and Future Sensors

    The 14 th JCSDA Workshop on Satellite Data Assimilation

     5 / 2016

    Stone, R., N. Baker, P. Pauley, B. Karpowicz, “Comparison and Impact of Newly Available Atmospheric Motion Vectors in NAVGEM”

    The 20 th International TOVS Study Conference (ITSC-20) Lake Geneva, Wisconsin

     2015

    Ruston, B., N. Baker, S. Swadley, T. Maurer, W. Campbell, R. Langland, K. Hoppel, J.McCormack, Stephen Eckermann, B. Karpowicz, Improvements in the Use of Humidity from Hyperspectral IR

    2014 IEEE International Geoscience and Remote Sensing Symposium.

     6 / 2014

    Karpowicz, B.M., N. Leisso, T. Kampe, “A Synergistic Approach to Atmospheric Correction of NEON’s Airborne Hyperspectral Data Utilizing Airborne Solar Spectral Flux Radiometers, Ground Based Radiometers, and Airborne Hyperspectral Imagers"

    Publications

    Refereed

    Lee, E., R. Todling, B. M. Karpowicz, et al. J. Jin, A. Sewnath, and S. K. Park. 2022. "Assessment of Geo-Kompsat-2A Atmospheric Motion Vector Data and Its Assimilation Impact in the GEOS Atmospheric Data Assimilation System." Remote Sensing 14 (21): 5287 [10.3390/rs14215287]

    Karpowicz, B. M., P. G. Stegmann, B. T. Johnson, et al. H. W. Christophersen, E. J. Hyer, A. Lambert, and E. Simon. 2022. "pyCRTM: A python interface for the community radiative transfer model." Journal of Quantitative Spectroscopy and Radiative Transfer 288 108263 [10.1016/j.jqsrt.2022.108263]

    McGrath-Spangler, E. L., W. McCarty, N. C. Privé, et al. I. Moradi, B. M. Karpowicz, and J. McCorkel. 2022. "Using OSSEs to Evaluate the Impacts of Geostationary Infrared Sounders." Journal of Atmospheric and Oceanic Technology 39 (12): 1903-1918 [https://doi.org/10.1175/JTECH-D-22-0033.1]

    Karpowicz, B. M., Y. Zhu, S. J. Munchak, and W. McCarty. 2022. "Assessment of retrieved GMI emissivity over land, snow, and sea ice in the GEOS system." Journal of Atmospheric and Oceanic Technology [10.1175/jtech-d-21-0187.1]

    Dolinar, E. K., J. R. Campbell, J. W. Marquis, A. E. Garnier, and B. M. Karpowicz. 2022. "Novel Parameterization of Ice Cloud Effective Diameter from Collocated CALIOP-IIR and CloudSat Retrievals." Journal of Applied Meteorology and Climatology 61 (7): 891-907 [10.1175/jamc-d-21-0163.1]

    Stegmann, P. G., B. Johnson, I. Moradi, B. Karpowicz, and W. McCarty. 2022. "A deep learning approach to fast radiative transfer." Journal of Quantitative Spectroscopy and Radiative Transfer 280 108088 [10.1016/j.jqsrt.2022.108088]

    Karpowicz, B. M., W. McCarty, and K. Wargan. 2021. "Investigating the utility of hyperspectral sounders in the 9.6 μm band to improve ozone analyses." Quarterly Journal of the Royal Meteorological Society [10.1002/qj.4198]

    Steffes, P. G., T. R. Hanley, B. M. Karpowicz, et al. K. Devaraj, S. Noorizadeh, D. Duong, G. Chinsomboon, A. Bellotti, M. A. Janssen, and S. J. Bolton. 2016. "High-Precision Laboratory Measurements Supporting Retrieval of Water Vapor, Gaseous Ammonia, and Aqueous Ammonia Clouds with the Juno Microwave Radiometer (MWR)." Space Science Reviews 213 (1-4): 187-204 [10.1007/s11214-016-0265-0]

    Karpowicz, B. M., and P. G. Steffes. 2013. "Investigating the H2–He–H2O–CH4 equation of state in the deep troposphere of Jupiter." Icarus 223 (1): 277-297 [10.1016/j.icarus.2012.11.026]

    Devaraj, K., P. G. Steffes, and B. M. Karpowicz. 2011. "Reconciling the centimeter- and millimeter-wavelength ammonia absorption spectra under jovian conditions: Extensive millimeter-wavelength measurements and a consistent model." Icarus 212 (1): 224-235 [10.1016/j.icarus.2010.12.010]

    Karpowicz, B. M., and P. G. Steffes. 2011. "In search of water vapor on Jupiter: Laboratory measurements of the microwave properties of water vapor under simulated jovian conditions." Icarus 212 (1): 210-223 [10.1016/j.icarus.2010.11.035]

    Hanley, T. R., P. G. Steffes, and B. M. Karpowicz. 2009. "A new model of the hydrogen and helium-broadened microwave opacity of ammonia based on extensive laboratory measurements." Icarus 202 (1): 316-335 [10.1016/j.icarus.2009.02.002]

                                                                                                                                                                                            
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