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 Earth Science: People
Simon Hook's Picture
Jet Propulsion Laboratory
M/S 183-501
4800 Oak Grove Drive
Pasadena, CA 91109

Simon Hook
Section Manager

Simon Hook is a geologist in the Earth Science Section at the Jet Propulsion Laboratory. His research is focused on improving our understanding of geologic, hydrodynamic and ecologic processes. He is currently leading a study to look at large lakes as climate change indicators. He also applies his knowledge of terrestrial geologic processes to other planets, in particular Mars.

Simon is an expert on optical radiometry, in particular thermal infrared spectroscopy. He is a member of several instrument teams including ASTER, MODIS, NPP, Landsat and AATSR. He has developed validation sites at Lake Tahoe, CA/NV and Salton Sea CA for determining the absolute radiometry of airborne and spaceborne mid and thermal infrared radiometers and surface temperature retrieval algorithms. The measurements at the sites are unique and now used as an absolute reference standard for multiple instruments developed by both domestic and foreign research agencies.

Simon continues to develop new instrumentation, especially infrared radiometers and spectrometers, in support of scientific studies. He is currently working with colleagues to demonstrate a new airborne Hyperspectral Thermal Emission Spectrometer (HyTES). A key aspect of Simon's research is the development of new techniques to analyze and extract critical information from optical remotely sensed data, in particular, temperature and emissivity. Techniques developed by Simon are widely used by researchers and have been incorporated into commercial packages and form the basis for the standard temperature and emissivity products from ASTER and MODIS.

Simon is actively involved in planning activities at NASA and other agencies and is currently leading an effort to develop the thermal infrared sensor on the Hyperspectral Infrared Imager (HyspIRI) Mission recommended by NRC Decadal Survey for Earth Science. As part of the HyspIRI work, Simon led the development of the Prototype HyspIRI Thermal Infrared Radiometer (PHyTIR). Much of the capability developed as part of PHyTIR is now being considered for the Sustainable Land Imaging program (the follow-on to Landsat).

  • B.S. in Geological Sciences - University of Durham, England (1982)
  • M.Sc. in Geological Sciences - University of Edmonton, Canada (1985)
  • Ph.D. in Geological Sciences - University of Durham, England (1989)


HyspIRI Mission Study Icon HyspIRI Mission Study
The Hyperspectral Infrared Imager or HyspIRI mission will study the worlds ecosystems and provide critical information on natural disasters.

The Hyperspectral Thermal Emission Spectrometer

The MODIS/ASTER (MASTER) airborne simulator is a joint development involving the Airborne Sensor Facility at the Ames Research Center, the Jet Propulsion Laboratory and the EROS Data Center.

The Prototype HyspIRI Thermal Infrared Radiometer is a complete prototype of the HyspIRI Thermal Infrared Radiometer.

Professional Experience
  • Jet Propulsion Laboratory (1991-present)
    • Section Manager Earth Science (2014-)
    • Principal Scientist (2006-present)
    • Research Scientist (1996-2006)
    • Lead Scientist New Millennium Program Earth Science (2003-present)
    • Project Scientist, Advanced Spaceborne Thermal Emission Reflectance Radiometer (ASTER) (1993-2003)
    • Member of Technical Staff (1991-1996)

Selected Publications

Book Chapters

  1. Abrams, M. J. and S. J. Hook, 2013. NASA’s Hyperspectral Infrared Imager (HyspIRI). In Thermal Infrared Remote Sensing edited by C. Kuenza and S. Dech, Springer, 527 p.
  2. 5. Hook, S. J., W. R. Johnson and M. J. Abrams, 2013. NASA’s Hyperspectral Thermal Emission Spectrometer (HyTES). In Thermal Infrared Remote Sensing edited by C. Kuenza and S. Dech, Springer, 527 p.

 Peer Reviewed Papers (75 Publications in Web of Science)

  1. Mallick, A.J. Jarvis, E. Boegh, J. B.  Fisher, D. T. Drewry, K. P.  Tu, S. J. Hook, G. Hulley, J.  Ardo, J.  Beringer, A. ArainD. Niyogi, 2014. A Surface Temperature Initiated Closure (STIC) for surface energy balance fluxes, Remote Sensing of Environment vol. 141, pp 243-261.
  2. Hulley, G., S. Veraverbeke, Hook, S., 2014. Thermal-based techniques for land cover change detection using a new dynamic MODIS multispectral emissivity product (MOD21). Remote Sensing of Environment vol. 140, pp 755-765.
  3. Wilson, R. C., S. J. Hook, P. Schneider, et al., 2013. Skin and bulk temperature difference at Lake Tahoe: A case study on lake skin effect. Journal of Geophysical Research – Atmospheres, Vol. 118, pp. 10332-10346.
  4. Justice, C. O., M. O. Roman, I. Csiszar, E. Vermote, R. E. Wolfe, S. J. Hook, et al., 2013. Land and cryosphere products from Suomi NPP VIIRS: Overview and status. Journal of Geophysical Research – Atmospheres, Vol. 118, pp. 9753-9765.
  5. Veraverbeke, S. and S. J. Hook, 2013.  Evaluating spectral indices and spectral mixture analysis for assessing fire severity, combustion completeness and carbon emissions. International Journal of Wildland Fire, vol. 22, pp707-720.
  6. Hulley, G. C., C. G. Hughes and  S. J. Hook, 2013.  Quantifying uncertainties in land surface temperature and emissivity retrievals from ASTER and MODIS thermal infrared data. JGR Atmospheres, vol 117, pp. D23113- D23130.
  7. Mercury, M.; R. Green, S. Hook., et al. 2012. Global cloud cover for assessment of optical satellite observation opportunities: A HyspIRI case study. Remote Sensing of Environment, vol. 126   pp. 62-71.  
  8. Hulley, G. C. and S. J. Hook, 2012. A radiance-based method for estimating uncertainties in the Atmospheric Infrared Sounder (AIRS) land surface temperature product. Journal Geophysical Research-Atmospheres, vol. 117, pp. D20117- D20116.
  9. Veraverbeke, S., S. J. Hook and S. Harris, 2012.  Synergy of VSWIR (0.4-2.5 mu m) and MTIR (3.5-12.5 mu m) data for post-fire assessments.. Remote Sensing of Environment, vol. 124.  pp. 771-779.  
  10. Veraverbeke, S., S. Hook and G. Hulley, 2012. An alternative spectral index for rapid fire severity assessments.  Remote Sensing of Environment, vol. 123, pp. 72-80.   
  11. Achberger, C., S. A. Ackerman,  Ahmed, Farid al. 2012. State of the Climate in 2011 Special Supplement to the Bulletin of the American Meteorological Society Vol. 93, No. 7, July 2012. Bulletin of the American Meteorological Society, vol. 9, Supplement: S   pp. S18-S19.  
  12. Schott, J. R, S. J. Hook, J. A. Barsi,  et al. 2012. Thermal infrared radiometric calibration of the entire Landsat 4, 5, and 7 archive (1982-2010). Remote Sensing of Environment,  vol. 122, pp. 41-49.
  13. Johnson, W. R., S. J Hook, and S. M. Shoen, 2012.  Microbolometer imaging spectrometer. Optics Letters, vol. 37, pp. 803-805.
  14. Roberts, D. A.,  D. A. Quattrochi, G. C. Hulley, S. J. Hook and R. O. Green, 2012. Synergies between VSWIR and TIR data for the urban environment: An evaluation of the potential for the Hyperspectral Infrared Imager (HyspIRI) Decadal Survey mission. Remote Sensing of Environment, vol. 117, pp. 83-101.
  15. Hulley G. C.; S. J. Hook and P. Schneider, 2011. Optimized split-window coefficients for deriving surface temperatures from inland water bodies. Remote Sensing of Environment, vol. 115, pp. 3758-3769.
  16. Hecker, C., S. Hook, M. van der Meijde Mark; et al., 2011.Thermal Infrared Spectrometer for Earth Science Remote Sensing Applications-Instrument Modifications and Measurement Procedures,  Sensors,  vol. 11, pp. 10981-10999.
  17. Veraverbeke, S., S. Harris and S. Hook, 2011. Evaluating spectral indices for burned area discrimination using MODIS/ASTER (MASTER) airborne simulator data . Remote Sensing of Environment, vol. 115, pp. 2702-2709.
  18. Thomson, B. J., N. T. Bridges, R. Milliken, A. Baldridge, S. J. Hook, J. K. Crowley, G. M. Marion, C. R. de Souza, Filho, A. J. Brown, C. M. Weitz,, 2011. Constraints on the origin and evolution of the layered mound in Gale Crater, Mars using Mars Reconnaissance Orbiter data  ICARUS Vol 214,  pp. 413-432.
  19. Hulley, G. C., and S. J. Hook, 2011. Generating Consistent Land Surface Temperature and Emissivity Products Between ASTER and MODIS Data for Earth Science Research  IEEE Geoscience and Remote Sensing, vol.  49, pp. 1304-1315.
  20. Schneider. P. and S. J. Hook, 2010. Space observations of inland water bodies show rapid surface warming since 1985. Geophysical research letters, vol. 37, pp. L22405- L22409.

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