Timothy J. Garrett

Education

University of Washington, Ph.D., Atmospheric Sciences, 2000,
University of Washington, M.S. Atmospheric Sciences, 1995.
University of Waterloo, B.Sc. Honours Physics, 1992

Research Positions

Assistant Professor, Meteorology Department, University of Utah, 2002 - present
Huber Fellow, Princeton Environmental Institute, Princeton University, 2000 - 2002
Research Assistant, Department of Atmospheric Sciences, University of Washington, 1992-1995; 1998-2000

Teaching Positions

Assistant Professor, Meteorology Department, University of Utah, 2002 - present
Secondary-school Science Teacher, Taufa'ahau-Pilolevu College/U. S. Peace Corps, Kingdom of Tonga, 1995-1997

Journal Publications    

Liu, C., E. Zipser, T. J. Garrett, J. Jiang,  and H. Su, 2007: How do the water vapor and carbon monoxide "tape recorders" start near the tropical tropopause?  Geophys. Res. Lett. (submitted)

Garrett, T. J., and L. Verzella, 2007: Hazy perspectives of Early Arctic Explorers. Bull. Amer. Meteorol. Soc. (submitted)

Garrett, T. J., M. B. Kimball, G. G. Mace, D. G. Baumgardner, 2007: Observing cirrus halos to constrain in-situ measurements of ice crystal size Atmos. Chem. Phys. Discuss, 7, 1295-1325 PDF

Noel, V., D. M. Winker, T. J. Garrett, and M. McGill, 2006: Extinction coefficients retrieved in deep tropical ice clouds from lidar observations using a CALIPSO-like algorithm compared to in-situ measurements from the Cloud Integrated Nephelometer during CRYSTAL-FACE. Atmos. Chem. Phys. Discuss. 6, 10649-10672 PDF

T. J. Garrett, 2006: Comment on "Effective radius of ice cloud particle populations derived from aircraft probes", by A. J. Heymsfield, et al. J. Atmos. Oceanic. Technol. (accepted)

Avey, L., T. J. Garrett, A. Stohl, 2006:  Evaluation of the aerosol indirect effect using satellite, tracer transport model, and aircraft data from ICARTT, J. Geophys. Res. (in press) PDF

Garrett, T. J., L. Avey, P. I. Palmer, A. Stohl, J. A. Neuman, C. A. Brock, T. B. Ryerson, and J. S. Holloway, 2006: Quantifying wet scavenging processes in aircraft observations of Nitric Acid and CCN. J. Geophys. Res. D23S51, doi:10.1029/2006JD007416 PDF

Garrett, T. J., M. A. Zulauf, and S. K. Krueger, 2006: Effects of cirrus near the tropopause on anvil cirrus dynamics, Geophys. Res. Lett, 33, L17804, doi:10.1029/2006GL027071 PDF

Garrett, T. J. and C. Zhao, 2006: Increased Arctic cloud longwave emissivity associated with pollution from mid-latitudes. Nature, 440, 10.1038/nature04636, 787-789 HTML PDF

Garrett, T. J., J. Dean-Day, C. Liu, B. K. Barnett, G. G. Mace, D. B. Baumgardner, C. R. Webster, T. P. Bui, W. B. Read, and P. Minnis 2006: Convective formation of pileus cloud near the tropopause Atmos. Chem. Phys. 6, 1185-1200 PDF

Schultz, D. M., K. M. Kanak, J. M. Straka, R. J. Trapp, B. A. Gordon, D. S. Zrnic, G. H. Bryan, A. J. Durant, T. J. Garrett, P. M. Klein, and D. K. Lilly, 2006: The mysteries of mammatus clouds: Observations and formation mechanisms. J. Atmos. Sci., 63, 2409-2435. PDF

Garrett, T. J., B. C. Navarro, C. H. Twohy, E. J. Jensen, D. G. Baumgardner, T. P Bui, H. Gerber, R. L. Herman, A. J. Heymsfield, P. Lawson, P. Minnis, L. Nguyen, M. Poellot, S. K. Pope,  F. P. J. Valero,  and E. Weinstock 2005: Evolution of a Florida cirrus anvil, J. Atmos. Sci., 62, 2352–2372.   PDF

Roskovensky, J. K., K.-N. Liou, T. J. Garrett, D. G., Baumgardner, 2004: Simultaneous Retrieval of Aerosol and Thin Cirrus Optical Depths using MODIS Airborne Simulator Data during CRYSTAL-FACE and CLAMS. Geophys. Res. Lett. Vol. 31, No. 18, 10.1029/2004GL020457  PDF

Garrett T. J., A. J. Heymsfield, B. A. Ridley, M. J. McGill, D. G. Baumgardner, T. P. Bui, and C. R. Webster, 2004: Convective generation of cirrus near the tropopause, J. Geophys. Res., 109, D21203, doi:10.1029/2004JD004952 PDF

Garrett, T. J., C. Zhao, X. Dong, G. G. Mace, P. V. Hobbs, 2004: Effects of Varying Aerosol Regimes on Low-Level Arctic Stratus. Geophys. Res. Lett. Vol. 31, No. 17, L17105 10.1029/2004GL019928 PDF

P. J. Popp, R. S. Gao, T. P. Marcy, D. W. Fahey, P. K. Hudson, T. L. Thompson, B. Karcher, R. L. Herman, B. A. Ridley, A. J. Weinheimer, D. J. Knapp, D. D. Montzka, D. G. Baumgardner, T. J. Garrett, E. M. Weinstock, J. G. Smith, D. S. Sayres, J. V. Pittman, S, Dhaniyala, P. T. Bui, and M. J. Mahoney, 2004: Nitric acid uptake on subtropical cirrus cloud particles. J. Geophys. Res. 109, D06302, doi: 10.1029/2003JD004255 PDF

Gao, R. S., P. J. Popp, D. W. Fahey, T. P. Marcy, R. L. Herman, E. M. Weinstock, D. G. Baumgardner, T. J. Garrett, K. H. Rosenlof, T. L. Thompson, P. T. Bui, B. A. Ridley, S. C. Wofsey, O. B. Toon, M. A. Tolbert, B. Karcher, Th. Peter, P. K. Hudson, A. J. Weinheimer, and A. J. Heymsfield, 2004: Evidence that Nitric Acid increases relative humidity in low-temperature cirrus clouds. Science, 303, 516-520. PDF

Garrett, T. J., H. Gerber, D. G. Baumgardner, D. G., C. H. Twohy, and E. M. Weinstock, 2003: Small, highly reflective ice crystals in low-latitude cirrus. Geophys. Res. Let., 30, 2132, doi:10.1029/2003GL018153. PDF

Garrett, T.J. L.M. Russell, V. Ramaswamy, S.M. Maria, and B. Huebert, 2003: Microphysical and radiative evolution of aerosol plumes over the tropical North Atlantic Ocean. J. Geophys. Res., 108 (D1), 4022, doi:10.1029/2002JD002228. PDF

Garrett, T.J., L.F. Radke, and P.V. Hobbs, 2002: Aerosol effects on cloud emissivity and surface longwave heating in the Arctic, J. Atmos. Sci., 59, 769-778. PDF

Garrett, T.J., P.V. Hobbs, and L.R. Radke, 2002: High aitken nucleus concentrations above cloud tops in the Arctic, J. Atmos. Sci., 59, 779-783. PDF

Wendisch, M., T. J. Garrett, and W. Strapp, 2002: PVM-100A liquid water content probe response to large droplets. J. Atmos. Ocean. Tech., 19, 1577-1584. PDF

Garrett, T.J., P.V. Hobbs, and H. Gerber, 2001: Shortwave, single-scattering properties of arctic ice clouds, J. Geophys. Res., 106, 15,155-15,172. PDF

Curry, J. A, P. V. Hobbs, M. D. King, D. A. Randall, P. Minnis, G. A. Isaac, J. O. Pinto, T. Uttal, A. Bucholtz, D. G. Cripe, H. Gerber, C. W. Fairall, T. J. Garrett, J. Hudson, J. M., Intrieri, C. Jakob, T. Jensen, P. Lawson, D. Marcotte, L. Nguyen, P. Pilewskie, A. Rangno, D. C. Rogers, K. B Strawbridge, F. P. J. Valero, A. G. Williams, D. Wylie, 2000: FIRE Arctic Clouds Experiment. Bull. Amer. Meteor. Soc., 81, 5-29.

Durkee, P. and co authors, 2000: The impact of ship-produced aerosols on the microstructure and albedo of warm marine stratocumulus clouds: A test of MAST hypotheses 1i and 1ii. J. Atmos. Sci., 57, 2554-2569. PDF

Ferek, R.J., T.J. Garrett and co-authors, 2000: Drizzle suppression in ship tracks. J. Atmos. Sci., 57, 2707-2728. PDF

Hobbs, P.V., T.J. Garrett, and co-authors, 2000: Emissions from ships with respect to their effects on clouds, J. Atmos. Sci., 57, 2570-2590. PDF

Hudson, J.G., T.J. Garrett, P.V. Hobbs, S.R. Strader, Y. Xie, and S.S. Yum, 2000: Cloud condensation nuclei and ship tracks. J. Atmos. Sci., 57, 2696-2706. PDF

Noone K. J., D. W. Johnson, J. P. Taylor, R. J. Ferek, T. Garrett, P. V. Hobbs, P. A. Durkee, K. Nielsen, E. Öström, C. O'Dowd, M. H. Smith, L. M. Russell, R. C. Flagan, J. H. Seinfeld, L. De Bock, R. E. Van Grieken, J. G. Hudson, I. Brooks, R. F. Gasparovic, and R. A. Pockalny, 2000: A Case Study of Ship Track Formation in a Polluted Marine Boundary Layer. J. Atmos. Sci., 57, 2748-2764. PDF

Noone, K. J., D. W. Johnson, J. P., Taylor, R. J. Ferek, T. Garrett, P. V. Hobbs, P. A. Durkee, K. Nielsen, E. Oestrom, C. O'Dowd, M. H. Smith, L. M. Russell, R. C. Flagan, J. H. Seinfeld, L. DeBock, R. E. Van Grieken, J. G. Hudson, I. Brooks, R. F. Gasparovic, I. Brooks, 2000: A case of ships forming and not forming tracks in moderately polluted clouds, J. Atmos. Sci., 57, 2729-2747. PDF

Gerber, H., Y. Takano, T. J. Garrett, and P. V. Hobbs, 2000: Nephelometer measurements of the asymmetry parameter, volume extinction coefficient, and backscatter ratio in clouds. J. Atmos. Sci., 57, 3021-3034. PDF

Garrett, T.J. and P.V. Hobbs, 1995: Long-range transport of continental aerosols over the Atlantic Ocean and their effects on cloud structures. J. Atmos. Sci., 52, 2977-2984. PDF

Other Publications

Kimball, M. B. and T. J. Garrett, Constraining cirrus ice crystal size through observation of halos. 12th Conference on Cloud Physics and Radiation, Madison, Wisconsin, 2006 PDF

Avey, L. T. J. Garrett, and A. Stohl, Evaluation of the aerosol indirect effect using satellite, chemical transport model, and aircraft data from ICARTT, 12th Conference on Cloud Physics and Radiation, Madison, Wisconsin, 2006 PDF

Zhao, C. and T. J. Garrett, Ground-based retrieval of seasonal cloud an precipitation properties in the Arctic, 12th Conference on Cloud Physics and Radiation, Madison, Wisconsin, 2006 PDF

Garrett, T. J., H. Gerber, D. G. Baumgardner, M. Poellot, C. H. Twohy, and E. M. Weinstock, Microphysical relationships in CRYSTAL-FACE anvil cirrus. International Conference on Clouds and Precipitation, Bologna, Italy, 2004 PDF

Garrett, T. J., X. Dong, G. G. Mace, C. Zhao: Effects of arctic haze on clouds and the surface radiation balance. Seventh Conf. on Polar Meteorology and Oceanography and Joint Symposium on High Latitude Climate Variations, , Hyannis Mass.,16-23 May 2003. PDF

Garrett, T. J.: Radiative Properties of Arctic Clouds. Ph. D. Dissertation, University of Washington, 2000.

Garrett, T. J. and P. V. Hobbs, 1999: Calibration of liquid water probes form the University of Washington's CV-580 aircraft at the Canadian NRC wind tunnel. PDF

Garrett, T. J. in collaboration with the Curriculum Development Unit of Tonga: Form 3: Weather and the Sea. Ministry of Education, Kingdom of Tonga, 1997.

Garrett, T. J.: Ship Tracks: An Example of Aerosol-Cloud Interactions. Masters Thesis, University of Washington, 1995.

Invited  Presentations

Small, Highly Reflective Ice Crystals in CRYSTAL-FACE Anvil Cirrus AGU Fall meeting,December 2003
Exploring Pollution-Cloud-Climate Interactions in the Arctic, State University of New York, September 2006
Exploring Pollution-Cloud-Climate Interactions in the Arctic, Brookhaven National Laboratories, September 2006
Pollution and the Arctic: 200 years of Man-Made Climate Change, Wallace Stegner Center, University of Utah, October 2006
Arctic Haze and Winter Warming: Arctic Climate Workshop sponsored by Clean Air Task Force, NASA GISS, January, 2007

Service

Associate Editor, Journal of Atmospheric Sciences
Peer-Reviewer for Nature, Science, J. Atmos. Sci., J. Appl. Meteorol., J. Climate, J. Atmos. Oceanic. Technol., Mon. Wea. Rev., Bull. Amer. Meteorol. Soc., J. Geophys. Res., Geophys. Res. Lett., Atmos. Chem. Phys. and Atmos. Res. 
Peer-Reviewer for NOAA, NASA, DOE, and NSF
Panel-Reviewer for NOAA

Field Projects

NASA CRYSTAL-FACE, Summer 2002: Integrated Cloud Integrating Nephelometer (CIN) onto the NASA WB-57 aircraft for the study of Florida anvil cirrus.
CNRC ETHEX, Fall, 2003: Integrated CIN onto Canadian National Research Council CV-580 Airborne Facility for flight into mid-latitude Hurricane systems.
NASA MidCiX, Spring, 2004: Integrated CIN onto the the NASA WB-57 for the study of mid-latitude and sub-tropical anvil cirrus.
NOAA ICARTT, Summer, 2004: Integrated CIN, FSSP-100 and OAP 2D-C onto NOAA and CNRC aircraft for the study of the effects of North American pollution on cloud radiative properties.

Professional Memberships

American Meteorological Society. 2000 - present
American Geophysical Union 1998 - present

Graduate Students Advised

Bradley Navarro. M. S. 2003
Nathaniel Mullins M. S. 2005
Chuanfeng Zhao Ph. D. candidate
Margaret Kimball M. S. 2006
Lance Avey M.S. 2006

Graduate Student Committees

Eric Vernon, M.S., 2002
Yuying Zhang M.S., 2002
Yaping Li, M.S. 2002
Haiyan Jiang, Ph.D.  2004
Kristen Dowd, M. S. 2004 
Yuying Zhang, Ph. D. 2006
Ryan Riveland, M. S.  2006
Helena Schlueter, M. S. 2006
Daniel Hartsock, M.S. 2006 
Jennifer Esker, M. S. 2006
 

Awards

New Investigator Award, NASA, 2006-2008
Huber Fellowship, Princeton Environmental Institute, Princeton University, 2000 - 2002
Outstanding Student Paper Award, AGU Fall Meeting, 1999

Current proposal awards

  1. NOAA Aerosol-cloud-climate interactions downwind of North Eastern North America. P.I. T. J. Garrett. 03/04 - 03/07.
  2. NASA Interactions between Microphysics, Radiation, and Dynamics in Terrestrial Cirrus P. I. T. J. Garrett. 08/06-07/08.


Revised Jan 18, 2007
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