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Glynn Hulley

Photo of Glynn Hulley


4800 Oak Grove Drive
M/S 183-509

Pasadena, CA 91109





Curriculum Vitae:

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Member of:

Carbon Cycle And Ecosystems


Dr. Glynn Hulley is a member of the Carbon Cycle and Ecosystems group at the Jet Propulsion Laboratory. His research interests include the remote sensing and retrieval of Earth surface land surface temperature and emissivity, urban climate science, heat waves and extreme temperatures, public health, ecosystem and hydrological processes. Glynn is an expert on multi- and hyperspectral thermal infrared spectroscopy, and is a member of several instrument and product development teams including ECOSTRESS, MODIS, Suomi-NPP, and Landsat. A key aspect of Glynn's research is the development of new techniques to analyze and extract land surface temperature and emissivity (LST&E) from thermal remotely sensed data. Techniques and algorithms developed by Glynn have been incorporated into commercial packages by NASA and are widely used by researchers. He is principle investigator for the development and validation of standard NASA Land Surface Temperature (LST) and emissivity products for MODIS, VIIRS and Landsat, and is the level-2 thermal lead for the ECOSTRESS mission. He has also worked extensively with a new airborne Hyperspectral Thermal Emission Spectrometer (HyTES) developed at JPL in 2013 in an effort to develop pre-cursor data and to test algorithms for future thermal infrared missions such as NASA' Surface Biology and Geology (SBG) designated observable.


  • B.Sc. in Computational Physics and Mathematics, Francis Marion University, magna cum laude (2001)
  • M.Sci. in Atmospheric Physics, University of Maryland Baltimore County (2004)
  • Ph.D. in Atmospheric Physics, University of Maryland Baltimore County (2007)

Professional Experience

NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA (2007-present)

  • Research Scientist III (2010-present)
  • Post-Doctoral Research Scholar (2007-2010)

Joint Center for Earth Systems Technology, University of Maryland Baltimore County, Baltimore, MD (2003-2007)

  • Graduate Research Assistant (2003-2007)

Research Interests

  • Thermal infrared remote sensing and retrieval of land surface temperature and emissivity
  • Multi- and hyperspectral thermal infrared spectroscopy
  • Atmospheric correction
  • Urban climate science and human health impacts
  • Heatwaves and extreme temperature regimes
  • Thermal infrared detection and mapping of anthropogenic methane, ammonia, and other trace gases

Selected Awards

  • JPL Bonus Award, 2018, For the first successful deployment of the HyTES instrument as part of the HyspIRI-HyTES Hawaii campaign.
  • Certificate of recognition team award, 2018, In recognitions of outstanding science support for ECOSTRESS launch operations.
  • JPL Voyager Award, 2016, in recognition of outstanding efforts in supporting the rapid analysis of HyTES data over the Porter Ranch Methane Leak to help with remediation efforts
  • NASA Early Career Achievement Medal, September (2014)
  • JPL Team Award, algorithm development and near-real time processing of data from the second Hyperspectral Thermal Emission Spectrometer (HyTES) Science campaign, August (2014)
  • JPL Team Award, successful first deployment of the airborne Hyperspectral Thermal Emission Spectrometer (HyTES), (2012)

Selected Publications

  1. Hulley, G.C., Goettsche, F., Rivera, G., Hook, S., Freepartner, R., Radocinski, R., Martin, M., Cawse-Nicholson, K., Johnson, W., (2020), Validation and quality assessment of the ECOSTRESS level-2 land surface temperature and emissivity product, Rem. Sens. Environ., in review.
  2. Hulley, G. C., Dousset, B., Kahn, B. H., (2020), Rising trends in heatwave metrics across Southern California, Earth's Future, Earth's Future, 8, e2020EF001480.
  3. Fisher, J. B., Lee, B., Purdy, A. J., Halverson, G. H., Dohlen, M. B., Cawse‐Nicholson, K., Hulley, G. et al. (2020). ECOSTRESS: NASA's Next Generation Mission to measure evapotranspiration from the International Space Station. Water Resources Research, 56, e2019WR026058.
  4. Hook, S.J., Cawse-Nicholson, K., Barsi, J., Radocinski, R., Hulley, G.C., Johnson, W.R., Rivera, G., Markham, B., (2020), In-Flight Validation of the ECOSTRESS, Landsats 7 and 8 Thermal Infrared Spectral Channels Using the Lake Tahoe CA/NV and Salton Sea CA Automated Validation Sites, IEEE Trans. Geo. Rem. Sens., Volume: 58 Issue: 2 Pages: 1294-1302 DOI: 10.1109/TGRS.2019.2945701
  5. Mushkin, A., Gillespie, A.R., Abbott, E.A., Batbaatar, J. Hulley, G., Tan, H., Tratt, D., Buckland, K.N., (2020), Validation of ASTER Emissivity Retrieval Using the Mako Airborne TIR Imaging Spectrometer at the Algodones Dune Field in Southern California, USA, Remote Sens. 2020, 12, 815; doi:10.3390/rs12050815
  6. Ermida, S., Trigo, I.F., Hulley, G., DaCamara, C., (2020), A multi-sensor approach to retrieve emissivity angular dependence over desert regions, Rem. Sens. Environ., 237, p. 111559
  7. Hulley, G., Shivers, S., Wetherley, E., Cudd, R., (2019), New ECOSTRESS and MODIS Land Surface Temperature Data Reveal Fine-Scale Heat Vulnerability in Cities: A Case Study for Los Angeles County, California, REMOTE SENSING Volume: 11 Issue: 18 Article Number: 2136 DOI: 10.3390/rs11182136
  8. Meerdink, S., Roberts, D., Hulley, G., Gader, P., Pisek, J., Adamson, K., & Hook, S. J. (2019). Plant species' spectral emissivity and temperature using the hyperspectral thermal emission spectrometer (HyTES) sensor. Remote Sensing of Environment, 224, 421-435.
  9. Schimel, D., Schneider, F. D., & JPL Carbon and Ecosystem Participants. (2019). Flux towers in the sky: global ecology from space. New Phytologist, 224(2), 570-584.
  10. Kim, Y., Malakar, N., Hulley, G., & Hook, S. (2019). Surface Temperature Retrieval from MASTER Mid-wave Infrared Single Channel Data Using Radiative Transfer Model. Korean Journal of Remote Sensing, 35(1), 151-162.
  11. Pinker, R.T., Ma, Y.T., Chen, W., Hulley, G., Borbas, E. Islam, T. Hain, C., Cawse-Nicholson, K., Hook, S., Basara, J., (2019), Towards a Unified and Coherent Land Surface Temperature Earth System Data Record from Geostationary Satellites, REMOTE SENSING Volume: 11 Issue: 12 Article Number: 1399 DOI: 10.3390/rs11121399
  12. Kuai, L., Kalashnikova, O.V., Hopkins, F.M., Hulley, G.C., Lee, H.Y,. Garay, M.J., Duren, R.M., Worden, J.R., Hook, S.J., (2019), Quantification of Ammonia Emissions With High Spatial Resolution Thermal Infrared Observations From the Hyperspectral Thermal Emission Spectrometer (HyTES) Airborne Instrument, IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING Volume: 12 Issue: 12 Pages: 4798-4812 DOI: 10.1109/JSTARS.2019.2918093
  13. Mattar, C., A. Santamaria-Artigas, F. Ponzoni, CT Pinto, C. Barrientos, G. Hulley, (2019), Atacama Field Campaign: laboratory and in-situ measurements for remote sensing applications, Int. Journal Digital Earth, 12(1), pp. 43-61
  14. Feltz, M., E. Borbas, R. Knuteson, G. Hulley, S. Hook, (2018), The Combined ASTER and MODIS Emissivity over Land (CAMEL) Global Broadband Infrared Emissivity Product, Remote Sensing, 10 (7), DOI: 10.3390/rs10071027
  15. Veraverbeke, S., P. Dennison, I. Gitas, G. Hulley, O. Kalashnikova, T. Katagis, L. Kuai, R. Meng, D. Roberts, N. Stavros, (2018), Hyperspectral remote sensing of fire: State-of-the-art and future perspectives, Rem. Sens. Environ., 216, pp. 105-121, DOI: 10.1016/j.rse.2018.06.020
  16. Malakar, N. K., G. C. Hulley, K. Laraby, Cook, M., S. Hook, J. Schott, (2018), An Operational Land Surface Temperature Product for Landsat Thermal Data: Methodology and Validation, IEEE TGRS, 56 (10), pp. 5715-5735, DOI: 10.1109/TGRS.2018.2824828
  17. Veraverbeke, Sander, P. Dennison, I. Gitas, G. Hulley, O. Kalashnikova, T. Katagis, L. Kuai, R. Meng, D. Roberts, N. Stavros. (2018). Hyperspectral remote sensing of fire: State-of-the-art and future perspectives. Remote Sensing of Environment. 216. 10.1016/j.rse.2018.06.020.
  18. Borbas, E. G. Hulley, M. Feltz, R. Knuteson, S. Hook (2018), The Combined ASTER MODIS Emissivity over Land (CAMEL) Part 1: Methodology and High Spectral Resolution Application, Remote Sensing, 10, 643, doi:10.3390/rs10040643
  19. Feltz, M., E. Borbas, R. Knuteson, G. Hulley, S. Hook, (2018), The Combined ASTER MODIS Emissivity over Land (CAMEL) Part 2: Uncertainty and Validation, Remote Sensing, 10, 664, doi:10.3390/rs100506664
  20. Hulley, G. C., Malakar, N., Islam, T., Freepartner, R, (2017), NASA's MODIS and VIIRS Land Surface Temperature and Emissivity Products: A Consistent and High Quality Earth System Data Record, IEEE TGRS, DOI: 10.1109/JSTARS.2017.2779330.
  21. Trinh, R. C., C. G. Fichot, M. M. Gierach, B. Holt, N. K. Malakar, G. C. Hulley, J. Smith, (2017), Application of Landsat 8 for Monitoring Impacts of Wastewater Discharge on Coastal Water Quality. Front. Mar. Sci. 4:329. doi: 10.3389/fmars.2017.00329
  22. Hulley, G. C., Duren, R. M., Hopkins, F. M., Hook, S. J., Vance, N., Guillevic, P., Johnson, W. R., Eng, B. T., Mihaly, J. M., Jovanovic, V. M., Chazanoff, S. L., Staniszewski, Z. K., Kuai, L., Worden, J., Frankenberg, C., Rivera, G., Aubrey, A. D., Miller, C. E., Malakar, N. K., Sánchez Tomás, J. M., and Holmes, K. T.: High spatial resolution imaging of methane and other trace gases with the airborne Hyperspectral Thermal Emission Spectrometer (HyTES), Atmos. Meas. Tech., 9, 2393-2408, 2016.
  23. Hook, S.J., G. C. Hulley, W.R. Johnson, B. Eng, J. Mihaly, S. Chazanoff, N. Vance, Z. Staniszewski, G. Rivera, K.T. Holmes and P. Guillevic, (2016), The Hyperspectral Thermal Emission Spectrometer (HyTES) - A New Hyperspectral Thermal Infrared Airborne Imager for Earth Science, Rem. Sens. Environ., in press.
  24. Kuai, L., J.R. Worden, K. Li, G. C. Hulley, F.M. Hopkins, C.E. Miller, S.J. Hooks, R.M. Duren, A.D. Aubrey (2016), Characterization of anthropogenic methane plumes with the Hyperspectral Thermal Emission Spectrometer (HyTES): a retrieval method and error analysis, Atmos. Meas. Tech., 9, 3165-3173
  25. Frankenberg, F., A.K. Thorpe, D.R. Thompson, G. Hulley, E.A. Kort, N. Vance, J. Borchardt, T. Krings, K. Gerilowski, C. Sweeney, S. Conley, B.D. Bue, A.D. Aubrey, S. Hook, R.O. Green, (2016), Airborne methane remote measurements reveal heavytail flux distribution in Four Corners region, Proc. Natl. Acad. Sci., 113 (35), 9734-9739
  26. Islam, T. G. C. Hulley, N. Malakar, R. Radocinski, S. Hook, P. Guillevic (2016), A physics-based algorithm for the simultaneous retrieval of land surface temperature and emissivity from VIIRS thermal infrared data, IEEE Transactions on Geoscience and Remote Sensing, 55, 563-576
  27. Malakar, N.K., and G. C. Hulley, (2016), A Water Vapor Scaling Model for Improved Land Surface Temperature and Emissivity Separation of MODIS Thermal Infrared Data, Remote Sensing of Environment, 182, 252-264
  28. Hulley, G., Hook S.J, Abbott, E., Malakar, N., Islam, T., Abrams, M., (2015), The ASTER Global Emissivity Dataset (ASTER GED): Mapping Earth's emissivity at 100 meter spatial resolution, Geophysical Research Letters, 42, doi:10.1002/2015GL065564.
  29. Hochberg, E. J., Roberts, D.A., Dennison, P.E, Hulley, G.C., (2015), Special issue on the Hyperspectral Infrared Imager (HyspIRI): Emerging Science in terrestrial and aquatic ecology, radiation balance and hazards, Rem. Sens. Environ., 167 (1-5)
  30. Abrams, M., Tsu, H., Hulley, G., Iwao, K., Pieri, D., Cudahy, T. (2015), The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) after fifteen years: Review of global products, Int. Journal of Applied Earth Observation and Geoinformation, 38 (202-301).