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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

Biography

Multi decades experience building remote sensing, in-situ, laboratory instrumentation for orbital, suborbital, and ground based atmospheric observations and laboratory studies.

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

Interferometry, Lasers, detectors, submm mixers, coherent and broad band light sources and their applications for spectroscopy, atmospheric studies and astronomy.

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. Kooi, J; Soriano, M; Bowen, J; Abdulla, Z; Samoska, L; Fung, A; Manthena, R; Hoppe, D; Javadi, H; Crawford, T; Hayton, D; Malo-Gomez, I; Gallego-Puyol, J; Akgiray, A; Gabritchidze, B; Cleary, K; Jacobs, C; Lazio, J, A Multioctave 8 GHz-40 GHz Receiver for Radio Astronomy, IEEE Journal of Microwaves, Digital Object Identifier 10.1109/JMW.2023.3237693
  2. Drouin, Brian J.; Benner, D. Chris; Brown, Linda R.; Cich, Matthew J.; Crawford, Timothy J.; Devi, V. Malathy; Guillaume, Alexander; Hodges, Joseph T.; Mlawer, Eli J.; Robichaud, David J.; Oyafuso, Fabiano; Payne, Vivienne H.; Sung, Keeyoon; Wishnow, Edward H.; Yu, Shanshan, Multispectrum analysis of the oxygen A-band, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 2017, 10.1016/j.jqsrt.2016.03.037.
  3. Benner, D. Chris; Devi, V. Malathy; Sung, Keeyoon; Brown, Linda R.; Miller, Charles E.; Payne, Vivienne H.; Drouin, Brian J.; Yu, Shanshan; Crawford, Timothy J.; Mantz, Arlan W.; Smith, Mary Ann H.; Gamache, Robert R., Line parameters including temperature dependences of air- and self-broadened line shapes of 12C16O2: 2.06-μm region, JOURNAL OF MOLECULAR SPECTROSCOPY, 2016, 10.1016/j.jms.2016.02.012.
  4. Devi, V. Malathy; Benner, D. Chris; Sung, Keeyoon; Brown, Linda R.; Crawford, Timothy J.; Miller, Charles E.; Drouin, Brian J.; Payne, Vivienne H.; Yu, Shanshan; Smith, Mary Ann H.; Mantz, Arlan W.; Gamache, Robert R. Line parameters including temperature dependences of self- and air-broadened line shapes of 12C16O2: 1.6-μm region, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,JUL 2016, 10.1016/j.jqsrt.2015.12.020",18th Symposium on High-Resolution Molecular Spectroscopy (HIghRus)
  5. Devi, V. Malathy; Benner, D. Chris; Sung, Keeyoon; Crawford, Timothy J.; Yu, Shanshan; Brown, Linda R.; Smith, Mary Ann H.; Mantz, Arlan W.; Boudon, Vincent; Ismail, Syed, Self- and air-broadened line shapes in the 2ν3 P and R branches of 12CH4, JOURNAL OF MOLECULAR SPECTROSCOPY, SEP 2015, 10.1016/j.jms.2015.05.003
  6. Sung, Keeyoon; Brown, Linda R.; Toth, Robert A.; Crawford, Timothy J. Fourier transform infrared spectroscopy measurements of H2O-broadened half-widths of CO2 at 4.3 μm,CANADIAN JOURNAL OF PHYSICS,MAY 2009,10.1139/P08-
  7. Sung, K.; Mantz, A. W.; Smith, M. A. H.; Brown, L. R.; Crawford, T. J.; Devi, V. M.; Benner, D. C., Cryogenic absorption cells operating inside a Bruker IFS-125HR: First results for 13<CH4 at 7 μm, JOURNAL OF MOLECULAR SPECTROSCOPY,AUG 2010,10.1016/j.jms.2010.05.004
  8. Fu, D.; Pongetti, T. J.; Blavier, J. -F. L.; Crawford, T. J.; Manatt, K. S.; Toon, G. C.; Wong, K. W.; Sander, S. P., Near-infrared remote sensing of Los Angeles trace gas distributions from a mountaintop site, ATMOSPHERIC MEASUREMENT TECHNIQUES,2014,10.5194/amt-7-713-
  9. Payne, Vivienne H.; Drouin, Brian J.; Oyafuso, Fabiano; Kuai, Le; Fisher, Brendan M.; Sung, Keeyoon; Nemchick, Deacon; Crawford, Timothy J.; Smyth, Mike; Crisp, David; Adkins, Erin; Hodges, Joseph T.; Long, David A.; Mlawer, Eli J.; Merrelli, Aronne; Lunny, Elizabeth; O'Dell, Christopher W. Absorption coefficient (ABSCO) tables for the Orbiting Carbon Observatories: Version 5.1, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,NOV 2020,10.1016/j.jqsrt.2020.107217
  10. Devi, V. Malathy; Benner, D. Chris; Sung, Keeyoon; Brown, Linda R.; Crawford, Timothy J.; Yu, Shanshan; Smith, Mary Ann H.; Mantz, Arlan W.; Boudon, Vincent; Ismail, Syed, Spectral line parameters including line shapes in the 2ν3< Q branch of 12CH4, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,JUL 2016,10.1016/j.jqsrt.2015.12.009","18th Symposium on High-Resolution Molecular Spectroscopy (HIghRus)
  11. Mantz, Arlan W.; Sung, Keeyoon; Brown, Linda R.; Crawford, Timothy J.; Smith, Mary Ann H.; Devi, V. Malathy; Benner, D. Chris, A cryogenic Herriott cell vacuum-coupled to a Bruker IFS-125HR, JOURNAL OF MOLECULAR SPECTROSCOPY", OCT 2014",10.1016/j.jms.2014.07.006
  12. Devi, V. Malathy; Benner, D. Chris; Smith, Mary Ann H.; Mantz, Arlan W.; Sung, Keeyoon; Crawford, Timothy J.; Predoi-Cross, Adriana, Self- and air-broadened line shape parameters in the ν2+ν3 band of 12CH4: 4500-4630 cm-1, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, FEB 2015,10.1016/j.jqsrt.2014.11.011
  13. Brown, L. R.; Nikitin, A. V.; Sung, K.; Rey, M.; Tashkun, S. A.; Tyuterev, Vl. G.; Crawford, T. J.; Smith, M. A. H.; Mantz, A. W., Measurements and modeling of cold 13CH4 spectra in the 3750-4700 cm-1 region, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, MAY 2016,10.1016/j.jqsrt.2016.01.016
  14. Sung, Keeyoon; Toth, Robert A.; Brown, Linda R.; Crawford, Timothy. J. Line strength measurements of carbonyl sulfide 16OS12C32S) in the 2ν3, ν1+2ν2+ν3, and 4ν2+ν3 bands, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, DEC 2009,10.1016/j.jqsrt.2009.05.013
  15. Gagne, Jonathan; Plavchan, Peter; Gao, Peter; Anglada-Escude, Guillem; Furlan, Elise; Davison, Cassy; Tanner, Angelle; Henry, Todd J.; Riedel, Adric R.; Brinkworth, Carolyn; Latham, David; Bottom, Michael; White, Russel; Mills, Sean; Beichman, Chas; Johnson, John A.; Ciardi, David R.; Wallace, Kent; Mennesson, Bertrand; von Braun, Kaspar; Vasisht, Gautam; Prato, Lisa; Kane, Stephen R.; Mamajek, Eric E.; Walp, Bernie; Crawford, Timothy J.; Rougeot, Raphael; Geneser, Claire S.; Catanzarite, Joseph, A HIGH-PRECISION NEAR-INFRARED SURVEY FOR RADIAL VELOCITY VARIABLE LOW-MASS STARS USING CSHELL AND A METHANE GAS CELL, ASTROPHYSICAL JOURNAL, MAY 1 2016,10.3847/0004-
  16. Dick, Michael J.; Drouin, Brian J.; Crawford, Timothy J.; Pearson, John C., 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 & RADIATIVE TRANSFER, JUN-JUL 2009,10.1016/j.jqsrt.2008.11.004,
  17. Devi, V. Malathy; Benner, D. Chris; Sung, Keeyoon; Crawford, Timothy J.; Gamache, Robert R.; Renaud, Candice L.; Smith, Mary Ann H.; Mantz, Arlan W.; Villanueva, Geronimo L., Line parameters for CO2- and self-broadening in the ν3 band of HD16O, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, DEC2017,10.1016/j.jqsrt.2017.02.020
  18. Drouin, Brian J.; Crawford, Timothy J.; Yu, Shanshan, Validation of ozone intensities at 10 μm with THz spectrometry, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, DEC 2017,10.1016/j.jqsrt.2017.06.035
  19. Gao, Peter; Plavchan, P.; Gagne, J.; Furlan, E.; Bottom, M.; Anglada-Escude, G.; White, R.; Davison, C. L.; Beichman, C.; Brinkworth, C.; Johnson, J.; Ciardi, D.; Wallace, K.; Mennesson, B.; von Braun, K.; Vasisht, G.; Prato, L.; Kane, S. R.; Tanner, A.; Crawford, T. J.; Latham, D.; Rougeot, R.; Geneser, C. S.; Catanzarite, J., Retrieval of Precise Radial Velocities from Near-infrared High-resolution Spectra of Low-mass Stars, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, OCT 2016,10.1088/1538
  20. Moazzen-Ahmadi, N.; Oliaee, J. Norooz; Ozier, I.; Wishnow, E. H.; Sung, K.; Crawford, T. J.; Brown, L. R.; Devi, V. M., An intensity study of the torsional bands of ethane at 35 μm, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, JAN 2015,10.1016/j.jqsrt.2014.09.016
  21. Drouin, Brian J.; Yu, Shanshan; Elliott, Ben M.; Crawford, Timothy J.; Miller, Charles E., High resolution spectral analysis of oxygen. III. Laboratory investigation of the airglow bands, JOURNAL OF CHEMICAL PHYSICS", OCT 14 2013,10.1063/1.4821759
  22. Devi, V. Malathy; Benner, D. Chris; Sung, Keeyoon; Crawford, Timothy J.; Li, Gang; Gamache, Robert R.; Smith, Mary Ann H.; Gordon, Iouli E.; Mantz, Arlan W., Positions, intensities and line shape parameters for the 1←0 bands of CO isotopologues, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER", OCT 2018,10.1016/j.jqsrt.2018.06.007
  23. Devi, V. Malathy; Benner, D. Chris; Sung, Keeyoon; Crawford, Timothy J.; Gamache, Robert R.; Renaud, Candice L.; Smith, Mary Ann H.; Mantz, Arlan W.; Villanuev, Geronimo L., Line parameters for CO2 broadening in the ν2 band of HD16O, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, JAN 2017,10.1016/j.jqsrt.2016.10.004
  24. Toth, Robert A.; Sung, Keeyoon; Brown, Linda R.; Crawford, Timothy J., Line positions and strengths of 41 bands including 10 OCS isotopologues in the 3850-4200 cm-1 region", JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, JUN 2010,10.1016/j.jqsrt.2009.10.014,
  25. Devi, V. Malathy; Benner, D. Chris; Sung, Keeyoon; Crawford, Timothy J.; Gamache, Robert R.; Renaud, Candice L.; Smith, Mary Ann H.; Mantz, Arlan W.; Villanueva, Geronimo L., Line parameters for CO2- and self-broadening in ν1 band of HD16O, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, DEC 2017,10.1016/j.jqsrt.2017.01.032
  26. Sung, Keeyoon; Toon, Geoffrey C.; Crawford, Timothy J., N2- and (H2+He)-broadened cross sections of benzene (C6H6) in the 7-15 μm region for the Titan and Jovian atmospheres, ICARUS,JUN 1 2016,10.1016/j.icarus.2016.01.012,
  27. K, Sung, Keeyoon; Devi, V. Malathy; Benner, D. Chris; Drouin, Brian J.; Crawford, Timothy J.; Mantz, Arlan W.; Smith, Mary Ann H., H2-pressure broadening and frequency shifts of methane in the v2+v3 band measured in the temperature range between 80 and 370, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER , NOV 2020,107264,10.1016/j.jqsrt.2020.107264
  28. Sung, Keeyoon; Wishnow, Edward H.; Crawford, Timothy J.; Nemchick, Deacon; Drouin, Brian J.; Toon, Geoffrey C.; Yu, Shanshan; Payne, Vivienne H.; Jiang, Jonathan H., FTS measurements of O2 collision-induced absorption in the 565-700 nm region using a high pressure gas absorption cell, JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER", SEP 2019,10.1016/j.jqsrt.2019.06.016
  29. Devi, V. Malathy; Benner, D. Chris; Sung, Keeyoon; Crawford, Timothy J.; Mantz, Arlan W.; Smith, Mary Ann H., Line positions and intensities for the v12 band of 13C12CH6, JOURNAL OF MOLECULAR SPECTROSCOPY, JUL 2014,10.1016/j.jms.2014.05.005
  30. Sung, Keeyoon; Toon, Geoffrey C.; Crawford, Timothy J. N2- and (H2+He)-broadened cross sections of benzene (C6H6) in the 7-15 μm region for the Titan and Jovian atmospheres (vol 271, pg 438, 2016), ICARUS,JAN 1 2017,10.1016/j.icarus.2016.08.018
  31. Payne, Vivienne H.; Drouin, Brian J.; Oyafuso, Fabiano; Kuai, Le; Fisher, Brendan M.; Sung, Keeyoon; Nemchick, Deacon; Crawford, Timothy J.; Smyth, Mike; Crisp, David; Adkins, Erin; Hodges, Joseph T.; Long, David A.; Mlawer, Eli J.; Merrelli, Aronne; Lunny, Elizabeth; O'Dell, Christopher W., Absorption coefficient (ABSCO) tables for the Orbiting Carbon Observatories: Version 5.1 (vol 255, 107217, 2020), JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,DEC 2020,10.1016/j.jqsrt.2020.107333,
  32. Fu, D; Pongetti, T.J.; Blavier, J.-F.; Crawford, T.J; Manatt, K.S.; Toon, G.C.; Wong, K.W.; Sanders, S.P., Near-infrared remote sensing of Los Angeles trace gas distributions from a mountaintop site, Atmospheric Measurements Technical Discusions6, 8807-8854, doi:10.5194/amtd-6-8807-2013, 2013
  33. 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:AERO,20216187067, publication year 2012, page9s)1-4
  34. Maiwald, F.; Martin, S.; Bruston, J.; Maestrini; Crawford, T.; Siegle, P, 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)