Senior Meteorologist
NASA/Goddard Space Flight Center
http://climate.gsfc.nasa.gov/~bell/
RESEARCH AREA EXPERIENCE
Climate theory, remote sensing, statistical methods, precipitation statistics and modeling, radiative transfer, satellite orbits and observational characteristics
EDUCATION
1973
Ph.D. – Physics – Univ. of Chicago
1967
B.A. – Physics – New College, Sarasota FL
PREVIOUS POSITIONS
1977-78
Postdoctoral Fellow, Advanced Studies Program, National Center for Atmospheric Research
1976-1977
Postdoctoral Associate, Applied and Engineering Physics, Cornell University
1975-1976
Research Associate, Laboratoire de Physique Théorique, Université Pierre et Marie Curie, Paris, France
1974-1975
Postdoctoral Associate, Applied and Engineering Physics, Cornell University
1972-1974
Research Associate and Instructor, Laboratory of Nuclear Studies and Physics Department, Cornell University
PROFESSIONAL SOCIETY MEMBERSHIPS
American Meteorological Society, American Geophysical Union, American Association for the Advancement of Science
HONORS AND AWARDS
2006
Laboratory for Atmospheres Scientific Research Award
2003
2002 AGU Editors’ Citation for Excellence in Refereeing for JGR-Atmospheres
2001
Goddard Laboratory for Atmospheres Scientific Research Award
1995
NASA Exceptional Achievement Medal
1981
Outstanding Paper Award for 1980, Laboratory for Atmospheric Research, Goddard Space Flight Center
1977-1978
Postdoctoral Fellow, Advanced Studies Program, National Center for Atmospheric Research
1969-1971
National Science Foundation Graduate Fellow
SPECIAL EXPERIENCE
Visiting Professor, Center for Climate System Research, Univ. of Tokyo, 4/94-4/95 AGU Precipitation Committee, 1988–1990, 1994–1996, 2000–present Associate Editor, Journal of Geophysical Research-Atmospheres, 1988-1992 AMS Committee on Probability and Statistics in the Atmospheric Sciences, 1987-1989
Recent Invited Lectures and Conference Presentations
Mar 2008
Dept. of Atmospheric and Oceanic Science Atmospheric Chemistry Seminar, Univ. of Maryland, College Park
Mar 2008
NASA/Goddard Climate and Radiation Branch Seminar:
Feb 2008
NASA/JAXA TRMM International Science Conference, Las Vegas
Sep 2007
Texas A&M University Seminar
May 2007
PMM Science Team Meeting, Atlanta. Presented poster entitled
Jan 2007
87th AMS Annual Meeting, San Antonio, Texas
Oct 2006
University of Connecticut, Environmental Engineering Seminar Series
Sep 2006
NASA/Goddard Climate and Radiation Branch Seminar:
FUNDED PROPOSALS
FY07-09
ROSES Precipitation Measurement Missions
Show Refereed Publications
1.
Bell, T. L., 1973: The α(Zα)2 vacuum-polarization correction in muonic atoms. Phys. Rev., A7, 1480-1488.
2.
Bell, T. L., and K. G. Wilson, 1974: Nonlinear renormalization groups. Phys. Rev., B10, 3935-3944.
3.
Bell, T. L., and K. G. Wilson, 1975: Finite-lattice approximations to renormalization groups. Phys. Rev., B11, 3431-3444.
4.
Bell, T. L., and M. Nelkin, 1977: Nonlinear cascade models for fully-developed turbulence. Phys. Fluids., 20, 345-350.
5.
Bell, T. L., and M. Nelkin, 1978: One-exponent scaling for very high-Reynolds-number turbulence. Phys. Rev., A17, 363-369.
6.
Bell, T. L., and M. Nelkin, 1978: Time dependent scaling relations and a cascade model of turbulence. J. Fluid Mech., 88, 369-391.
7.
Bell, T. L., U. Frisch, and H. Frisch, 1978: A renormalization group approach to noncoherent radiative transfer. Phys. Rev., A17, 1049-1057.
8.
Bell, T. L., 1980: Climate sensitivity from fluctuation-dissipation: Some simple model tests. J. Atmos. Sci., 37, 1700-1707.
9.
Bell, T. L., 1982: Optimal weighting of data to detect climatic change: Application to the carbon dioxide problem. J. Geophys. Res., 87, 11161-11170.
10.
North, G. R., F. J. Moeng, T. L. Bell, and R. F. Cahalan, 1982: The latitude dependence of the variance of zonally averaged quantities. Mon. Wea. Rev., 110, 319-326.
11.
North, G. R., T. L. Bell, R. F. Cahalan, and F. J. Moeng, 1982: Sampling errors in the estimation of Empirical Orthogonal Functions. Mon. Wea. Rev., 110, 699-706.
12.
Bell, T. L., 1985: Climatic sensitivity and fluctuation-dissipation relations. Turbulence and Predictability in Geophysical Fluid Dynamics and Climate Dynamics, North Holland, New York, 424-440.
13.
Bell, T. L., 1986: Theory of optimal weighting of data to detect climatic change. J. Atmos. Sci., 43, 1694-1710.
14.
Bell, T. L., 1987: A space-time stochastic model of rainfall for satellite remote-sensing studies. J. Geophys. Res., 92, 9631-9643.
15.
Bowman, K. P., and T. L. Bell, 1987: The latitude dependence of eddy variances. Mon. Wea. Rev., 115, 2395-2400.
16.
Cahalan, R. F., M. Nestler, W. Ridgway, W. J. Wiscombe, and T. Bell, 1989: Marine stratocumulus spatial structure. Proc. Fourth Int. Conf. Stat. Clim., IMSC, 19-25.
17.
Bell, T. L., A. Abdullah, R. L. Martin, and G. R. North, 1990: Sampling errors for satellite-derived tropical rainfall: Monte Carlo study using a space-time stochastic model. J. Geophys. Res., 95, 2195-2205.
18.
Atlas, D., and T. L. Bell, 1992: The relation of radar to cloud Area-Time Integrals and implications for rain measurements from space. Mon. Wea. Rev., 120, 1997-2008.
19.
Bell, T. L., and N. Reid, 1993: Detection of the diurnal cycle of tropical rainfall from satellite observations. J. Appl. Meteor., 32, 311-322.
20.
Bell, T. L., and R. Suhasini, 1994: Principal Modes of Variation of rain-rate probability distributions. J. Appl. Meteor., 33, 1067-1078.
21.
Cahalan, R. F., W. Ridgway, W. J. Wiscombe, T. L. Bell, and J. B. Snider, 1994: The albedo of fractal stratocumulus clouds. J. Atmos. Sci., 51, 2434-2455.
22.
Bell, T. L., and P. K. Kundu, 1996: A study of the sampling error in satellite rainfall estimates using optimal averaging of data and a stochastic model. J. Climate, 9, 1251-1268.
23.
Bell, T. L., and P. K. Kundu, 2000: Dependence of satellite sampling error on monthly averaged rain rates: Comparison of simple models and recent studies. J. Climate, 13, 449-462.
24.
Bell, T. L., P. K. Kundu, and C. Kummerow, 2001: Sampling errors of SSM/I and TRMM rainfall averages: Comparison with error estimates from surface data and a simple model. J. Appl. Meteor., 40, 938-954.
25.
Bell, T. L., M.-D. Chou, R. S. Lindzen, and A. Y. Hou, 2002: Reply to Comment on "Does the Earth Have an Adaptive Infrared Iris?" by H. Harrison. Bull. Amer. Meteor. Soc., 83, 598-600.
26.
Negri, A. J., T. L. Bell, and L. Xu, 2002: Sampling of the diurnal cycle of precipitation using TRMM. J. Atmos. Oceanic Tech., 19, 1333-1344.
27.
Bell, T. L., and P. K. Kundu, 2003: Comparing satellite rainfall estimates with rain gauge data: Optimal strategies suggested by a spectral model. J. Geophys. Res., 108 (D3), 4121, doi: 10.1029/2002JD002641.
28.
Kundu, P. K., and T. L. Bell, 2003: A stochastic model of space-time variability of mesoscale rainfall: Statistics of spatial averages. Water Resources Res., 39 (12), 1328, doi: 10.1029/2002WR001802.
29.
Steiner, M., T. L. Bell, Y. Zhang, and E. F. Wood, 2003: Comparison of two methods for estimating the sampling-related uncertainty of satellite rainfall averages based on a large radar dataset. J. Climate, 16, 3759-3778.
30.
Kundu, P. K., and T. L. Bell, 2006: Space-time scaling behavior of rain statistics in a stochastic fractional diffusion model. J. Hydrology, 322, 49-58, doi:10.1016/j.jhydrol.2005.02.031.
31.
Olson, W. S., C. D. Kummerow, S. Yang, G. W. Petty, W.-K. Tao, T. L. Bell, S. A. Braun, Y. Wang, S. E. Lang, D. E. Johnson, and C. Chiu, 2006: Precipitation and latent heating distributions from satellite passive microwave radiometry. Part I: Improved method and uncertainties. J. Appl. Meteorol. Climatol., 45 (5), 702-720.
32.
Yang, S., W. S. Olson, J.-J. Wang, T. L. Bell, E. A. Smith, and C. D. Kummerow, 2006: Precipitation and latent heating distributions from satellite passive microwave radiometry. Part II: Evaluation of estimates using independent data. J. Appl. Meteorol. Climatol., 45 (5), 721-739.
33.
Lee, M.-I., S. D. Schubert, M. J. Suarez, I. M. Held, A. Kumar, T. L. Bell, J.-K. E. Schemm, N.-C. Lau, J. J. Ploshay, H.-K. Kim, and S.-H. Yoo, 2007: Sensitivity to horizontal resolution in the AGCM simulations of warm season diurnal cycle of precipitation over the United States and northern Mexico. J. Climate, 20, No. 9, 1862-1881.
34.
Lee, M.-I., S. D. Schubert, M. J. Suarez, T. L. Bell, and K.-M. Kim, 2007: Diurnal cycle of precipitation in the NASA Seasonal to Interannual Prediction Project atmospheric general circulation model. J. Geophys. Res., 112, D16111, doi:10.1029/2006JD008346.
35.
Prabhakara, C., R. Iacovazzi, J.-M. Yoo, K.-M. Kim, and T. L. Bell, 2008: A method to estimate rain rate over tropical oceans with TRMM Microwave Imager radiometer. J. Meteor. Soc. Japan, 86(1), 203-212.
36.
Bell, T. L., D. Rosenfeld, K.-M. Kim, J.-M. Yoo, M.-I. Lee, and M. Hahnenberger, 2008: Midweek increase in U.S. summer rain and storm heights suggests air pollution invigorates rainstorms. J. Geophys. Res., 113, D02209, doi:10.1029/2007JD008623.
37.
Koster, R. D., T. L. Bell, R. Reichle, M. J. Suarez, and S. D. Schubert, 2008: Using observed spatial correlation structures to increase the skill of subseasonal forecasts. Mon. Weather Rev., 136(6), 1923-1939.
38.
Bell, T. L., and D. Rosenfeld, 2008: Comment on “Weekly precipitation cycles? Lack of evidence from United States surface stations” by D. M. Schultz et al.. Geophys. Res. Lett., 35, L09803, doi:10.1029/2007GL033046.
39.
Bell, T. L., J.-M. Yoo, and M.-I. Lee, 2009: Note on the weekly cycle of storm heights over the southeast United States. J. Geophys. Res., 114, D15201, doi:10.1029/2009JD012041.
40.
Bell, T. L., D. Rosenfeld, and K.-M. Kim, 2009: The Weekly Cycle of Lightning: Evidence of Storm Invigoration by Pollution. Geophys. Res. Lett. (In press)