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Timothy Crawford

Photo of Timothy Crawford

Address:

4800 Oak Grove Drive
M/S 183-301

Pasadena, CA 91109

Phone:

818.354.6913

Fax:

818.354.8460

Member of:

Laboratory Studies And Atmospheric Observations

Education

  • Associate Degree in Science from Glendale College
  • California State University, Northridge

Professional Experience

  • Jet Propulsion Laboratory (1988-Present)
    • Research Technician, Earth and Space Sciences Division (2010-Present)
    • Senior Technical Assistant, Earth and Space Sciences Division (2002-2010)
    • Technical Assistant (1995-2002)
    • Senior Engineering Assistant, (1991-1995)
    • Engineering Assistant (1988-1991)
  • International Telephone and Telegraph, JPL Contractor (1978-1988)
    • Engineering Assistant (1985-1988)
    • Telemetry (1978-1985)
  • Philco Ford, JPL Contractor (1975-1978)
    • Computer Operations (1975-1978)

Research Interests

  • High precision Fabry-Perot and Michelson interferometers fabrication and utilization
  • LASERs and LASER systems
  • Measurements of distances, optical properties, system stability, molecular spectroscopy and radio-frequency characterizations

Selected Awards

  • NASA Group Achievement Award, PanFTS Instrument Development Team (2012)
  • NASA Group Achievement Award, Molecular Spectroscopy Team (2006)
  • NASA Group Achievement Award, Aura, Microwave Limb Sounder Instrument Team (2005)
  • Goddard Space Flight Center Group Achievement Award Aura Team (2005)
  • NASA Group Achievement Award, Aura Project (2005)
  • NASA Group Achievement Award, Balloon Observations of the Stratosphere (2004)
  • NASA Group Achievement Award, IRAS, Data Systems Development and Operations Team (1984)
  • NASA Group Achievement Award, Voyager, Control Center Operations (1981)
  • NASA Group Achievement Award, Voyager, Computer Support Services (1981)

Selected Publications

  1. V. Malathy Devi, D. Chris Benner, Keeyoon Sung, Timothy J. Crawford, Arlan W. Mantz, Mary Ann H. Smith: Line positions and intensities for the v12 band of 13C12CH6, Journal of Molecular spectroscopy 315 (2015) 114-136
  2. N. Moazzen-Ahmadi, J.NoroozOliaee, I.Ozier, E.H.Wishnow, K.Sung, T.J.Crawford, L.R.Brown, V.M.Devi: An intensity study of the torsional bands of ethane at 35 um, Journal of Quantitative Spectroscopy & Radiative Transfer 151 (2015) 123–132
  3. Arlan W. Mantz, Keeyoon Sung, Linda R. Brown, Timothy J. Crawford, Mary Ann H. Smith, V. Malathy Devi, D. Chris Benner: A cryogenic Herriott cell vacuum-coupled to a Bruker IFS-125HR, Journal of Molecular Spectroscopy 304 (2014) 12–24
  4. S. Yu, J.C. Pearson, B.J. Drouin, T. Crawford, A.M. Daly, B. Elliott, T. Amano: Rotational spectroscopy of vibrationally excited N2H+ and N2D+ up to 2.7 THz, Journal of Molecular Spectroscopy 314 (2015) 19–25
  5. V. Malathy Devi, D. Chris Benner, Keeyoon Sung, Timothy J. Crawford, Shanshan Yu, Linda R. Brown, Mary Ann H. Smith, Arlan W. Mantz, Vincent Boudon, Syed Ismail: Self- and air-broadened line shapes in the 2v3 P and R branches of 12CH4, Journal of Molecular Spectroscopy 315 (2015) 114–136
  6. Fu, D., Pongetti, T. J., Blavier, J.-F. L., Crawford, T. J., Manatt, K. S., Toon, G. C., Wong, K. W., and Sander, S. P.: Near-infrared remote sensing of Los Angeles trace gas distributions from a mountaintop site, Atmos. Meas. Tech. Discuss., 6, 8807-8854, doi:10.5194/amtd-6-8807-2013, 2013.
  7. Brian Drouin, Shanshan Yu, Ben Elliott, Timothy Crawford, and Charles Miller : High Resolution Spectral Analysis of Oxygen III. Laboratory Investigation of the Airglow Bands, The Journal of Chemical Physics 139,000000 (2013)(received 26 July 2013; accepted 3 September 2013).
  8. Drouin, B.J. ; Cooper, K. ; Dengler, R. ; Chavez, M. ; Chun W. ; Crawford, T. ; Submillimeter wave spectrometry for in-situ planetary science : Aerospace Conference, 2012 IEEE, Digital Object Identifier:10.1109/AERO.2012.6187067, Publication year: 2012, Page(s): 1-4.
  9. K. Sung, A.W. Mantz, L.R. Brown, M.A.H. Smith, T.J. Crawford, V.M. Devi, and D.C. Benner. Cryogenic absorption cells operating inside a Bruker IFS-125HR: first results for 13CH4 at 7 µm. J. Mol. Spectrosc., 262,122-134 (2010).
  10. R.A. Toth, K. Sung, L.R. Brown, and T.J. Crawford. Line positions and strengths of 41 bands including 10 OCS isotopologues in the 3850 - 4200 cm-1 region. J. Quant. Spectrosc. Radiat. Transfer, 111, 1193-1208 (2010).
  11. K. Sung, L.R. Brown, R.A. Toth, and T.J. Crawford, FT-IR measurements of H2O-broadened half-widths of CO2 at 4.3 µm. Canad. J. Phys. 87, 469 -484 (2009).
  12. K. Sung, R.A. Toth, L.R. Brown, and T.J. Crawford. Line strength measurements of carbonyl sulfide (16O12C32S) in the 2v3, v1+2v2+v3, and 4v2+v3 bands. J. Quant. Spectrosc. Radiat. Transfer, 110, 2082 - 2101 (2009).
  13. Dick, M. J., B. J. Drouin, T. J. Crawford, J. C. Pearson, Pressure broadening of the J = 5 - 4 transition of carbon monoxide from 17 to 200 K: A new collisional cooling experiment, Journal of Quantitative Spectroscopy and Radiative Transfer, 110, 628-638 ( 2009).
  14. Maiwald F, S. Martin, J. Bruston, A. Maestrini, T. Crawford, P. Siegel, "2.7 THz Waveguide Tripler using Monolithic Membrane Diodes," IEEE MTT-S International Microwave Symposium, Phoenix, Arizona (2001)

Projects

A-SMLS (The Airborne Scanning Microwave Limb Sounder)