Address:
NOAA Earth System Research Laboratory, 325 Broadway, R/PSD1, Boulder, CO 80305
Phone: (303) 497-6313
Email: jeffrey.s.whitaker@noaa.gov
Education
Ph.D. Meteorology, Florida State University,
Tallahassee, FL 1990
M.S.
Meteorology, Florida State University, Tallahassee, FL 1986
B.A. Earth
and Planetary Science, The Johns Hopkins University, Baltimore, MD 1984
Profession
Experience
1999 – present: Meteorologist, NOAA Earth System
Research Lab, Physical Sciences Division, Boulder, CO
1992-1999:
Research Scientist, Cooperative Institute for Research in the Environmental
Sciences (CIRES)
and NOAA/CIRES Climate Diagnostics Center, Boulder CO
Awards
U.S. Department of Commerce Bronze Medal Award 2000,
2012
NOAA Research Employee of the Year Award 2006
Publications
Hamill, T. M., G. T. Bates, J. S. Whitaker, D. R. Murray, M. Fiorino, T. J. Galarneau, Jr., Y.
Zhu, and W. Lapenta, 2012: NOAA's second-generation
global medium-range ensemble reforecast data set. Bull Amer. Meteor. Soc., accepted
Whitaker, J. S., and T. M. Hamill, 2012: Evaluating methods
to account for system errors in ensemble data assimilation. Mon.
Wea. Rev., 140, 3078-3089. http://dx.doi.org/10.1175/MWR-D-11-00276.1
Compo,
G.P., J.S. Whitaker, P.D. Sardeshmukh,
N. Matsui, R.J. Allan, X. Yin, B.E. Gleason, R.S. Vose,
G. Rutledge, P. Bessemoulin, S. Bršnnimann,
M. Brunet, R.I. Crouthamel, A.N. Grant, P.Y. Groisman, P.D. Jones, M. Kruk, A.C. Kruger, G.J. Marshall,
M. Maugeri, H.Y. Mok, Ż. Nordli, T.F. Ross, R.M. Trigo,
X.L. Wang, S.D. Woodruff, and S.J. Worley, 2011: The Twentieth
Century Reanalysis Project. Quarterly J. Roy.
Meteorol. Soc., 137, 1-28. http://dx.doi.org/10.1002/qj.776
Hamill, T. M., J. S. Whitaker, D. T. Kleist, M. Fiorino, and S. J. Benjamin, 2011: Predictions
of 2010's tropical cyclones using the GFS and ensemble-based data assimilation
methods. Mon. Wea.
Rev., 139,
3243-3247. http://dx.doi.org/10.1175/MWR-D-11-00079.1
Hamill, T. M., and J. S. Whitaker, 2011: What Constrains Spread
Growth in Forecasts Initialized from Ensemble Kalman Filters? Mon. Wea. Rev., 139, 117-131. http://dx.doi.org/10.1175/2010MWR3246.1
Hamill, T. M., J. S. Whitaker, M. Fiorino,
and S. J. Benjamin, 2011: Global ensemble predictions of 2009's tropical
cyclones initialized with an ensemble Kalman filter. Mon. Wea. Rev., 139, 668-688.
http://dx.doi.org/10.1175/2010MWR3456.1
Giese, B.S., G.P. Compo, N.C. Slowey, P.D. Sardeshmukh, J.A.
Carton, S. Ray, and J.S. Whitaker,
2010: The 1918/1919 El Nino. Bull.
Amer. Met. Soc., 91, 177-183. http://dx.doi.org/10.1175/2009BAMS2903.1
Whitaker,
J.S., G.P.Compo,
and J.-N. Thepaut,
2009: A comparison of variational and ensemble-based data assimilation
systems for reanalysis of sparse observations. Mon. Wea.
Rev., 137, 1991-1999.
http://dx.doi.org/10.1175/2008MWR2781.1
Whitaker, J. S.,
T. M. Hamill, J. S. Whitaker, X. Wei, Y. Song and Zoltan
Toth, 2008: Ensemble data assimilation with the NCEP
Global Forecast System. Mon. Wea. Rev., 436, 463-482. http://dx.doi.org/10.1175/2007MWR2018.1
Hamill, Thomas M., Renate Hagedorn,
Jeffrey S. Whitaker, 2008: Probabilistic Forecast Calibration Using ECMWF and
GFS Ensemble Reforecasts. Part II: Precipitation. Mon. Wea. Rev., 136, 2620–2632. http://dx.doi.org/10.1175/2007MWR2411.1
Hagedorn, Renate, Thomas
M. Hamill, Jeffrey S. Whitaker, 2008: Probabilistic Forecast Calibration Using ECMWF
and GFS Ensemble Reforecasts. Part I: Two-Meter Temperatures. Mon. Wea. Rev., 136, 2608–2619. http://dx.doi.org/10.1175/2007MWR2410.1
Wang,
X., T. M. Hamill, J. S. Whitaker and C. H. Bishop, 2006: A comparison of hybrid
ensemble transform Kalman filter-OI and ensemble square-root
filter analysis schemes. Mon. Wea.
Rev., 135, 1055-1076. http://dx.doi.org/10.1175/MWR3307.1
Hamill,
T. M., and J. S. Whitaker, 2006: Probabilistic quantitative precipitation
forecasts based on reforecast analogs: theory and application. Mon. Wea. Rev., 134, 3209–3229. http://dx.doi.org/10.1175/MWR3237.1
Whitaker,
J.S., F. Vitart and X. Wei, 2006: Improving week two
forecasts with multi-model re-forecast ensembles. Mon. Wea.
Rev., 134, 2279-2284.
http://dx.doi.org/10.1175/MWR3175.1
Compo,G.P., J.S. Whitaker,and P.D. Sardeshmukh,
2006: Feasibility of a 100 year reanalysis using only surface pressure data. Bull. Amer. Met. Soc., 87,
175-190. http://dx.doi.org/10.1175/BAMS-87-2-175
Hamill,
T. M., J. S. Whitaker, and S. L. Mullen, 2006: Reforecasts, an important new
data set for improving weather predictions. Bull.
Amer. Meteor. Soc., 87,33-46. http://dx.doi.org/10.1175/BAMS-87-1-33
Hamill,
T. M., and J. S. Whitaker, 2005: Accounting
for the error due to unresolved scales in ensemble data assimilation: a
comparison of different approaches.Mon.
Wea. Rev., 133, 3132-3147.
http://dx.doi.org/10.1175/MWR3020.1
Whitaker,
J.S., G.P. Compo, X. Wei and and T.M. Hamill, 2004: Reanalysis without radiosondes
using ensemble data assimilation. Mon.
Wea. Rev., 132, 1190-1200. http://dx.doi.org/10.1175/1520-0493(2004)132<1190:RWRUED>2.0.CO;2
Hamill,
T.M., J.S. Whitaker and X. Wei, 2004: Ensemble re-forecasting: improving
medium-range forecast skill using retrospective forecasts. Mon. Wea.
Rev., 132, 1434-1447.
http://dx.doi.org/10.1175/1520-0493(2004)132<1434:ERIMFS>2.0.CO;2
Newman, Matthew, Prashant D. Sardeshmukh, Christopher
R. Winkler, Jeffrey S. Whitaker, 2003: A Study of Subseasonal Predictability. Mon. Wea. Rev., 131, 1715–1732. http://dx.doi.org/10.1175//2558.1
Whitaker,
J.S. and T. Hamill, 2002: Ensemble
data assimilation without perturbed observations. Mon. Wea.
Rev., 130, 1913-1924.
http://dx.doi.org/10.1175/1520-0493(2002)130<1913:EDAWPO>2.0.CO;2
Hamill,
T. M, J. S. Whitaker, and C. Snyder, 2001: Distance-dependent
filtering of background error covariance estimates in an ensemble Kalman
filter. Mon. Wea. Rev., 129, 2776-2790.
http://dx.doi.org/10.1175/1520-0493(2001)129<2776:DDFOBE>2.0.CO;2
Hoerling, M. P., J. S. Whitaker, A. Kumar
and W. Wang, 2001: The mid-latitude warming during 1998-2000. Geo. Res. Lett.. 28, 755-758.
http://dx.doi.org/0.1029/2000GL012137
Whitaker,
J. S, and K. M. Weickmann, 2001:Subseasonal
variations of tropical convection and week two prediction of wintertime western
North American rainfall.J.
Climate, 15, 3279-3288.
http://dx.doi.org/10.1175/1520-0442(2001)014<3279:SVOTCA>2.0.CO;2
Barsugli, J. J, J. S. Whitaker, A. F. Loughe, P. D. Sardeshmukh and Z. Toth, 1998: Effect
of the 1997-98 El Ni–o on Individual Large-Scale Weather Events. Bull. Amer. Met. Soc.,80, 1399-412.
http://dx.doi.org/10.1175/1520-0477(1999)080<1399:TEOTEN>2.0.CO;2
S. Peng and J. S. Whitaker, 1998: Mechanisms determining the atmospheric response to mid-latitude SST anomalies. J. Climate,12, 1393-1408. http://dx.doi.org/10.1175/1520-0442(1999)012<1393:MDTART>2.0.CO;2
Whitaker,
J. S., and A. F. Louge, 1998: The relationship between ensemble
spread and ensemble mean skill. Mon.
Wea. Rev.126, 3292-3302.
http://dx.doi.org/10.1175/1520-0493(1998)126<3292:TRBESA>2.0.CO;2
Whitaker,
J. S., and P. D. Sardeshmukh, 1998: A linear theory of extratropical
synoptic eddy statistics. J.
Atmos. Sci. 55,
237-258.
http://dx.doi.org/10.1175/1520-0469(1998)055<0237:ALTOES>2.0.CO;2
Cai, M., J. S. Whitaker, R. M. Dole and K. L. Paine, 1996: Dynamics of systematic error evolution
in the NMC medium range forecast model. Mon.. Wea. Rev.,124, 265-274.
http://dx.doi.org/10.1175/1520-0493(1996)124<0265:DOSEIT>2.0.CO;2
Whitaker,
J. S., and R. M. Dole, 1995: Organization
of storm tracks in zonally varying flows. J.
Atmos. Sci., 52,
1178-1191. http://dx.doi.org/10.1175/1520-0469(1995)052<1178:OOSTIZ>2.0.CO;2
Whitaker,
J. S., and A. Barcilon, 1995: Low-frequency variability and
wavenumber selection in models with zonally symmetric forcing. J. Atmos. Sci., 52, 491-503. http://dx.doi.org/10.1175/1520-0469(1995)052<0491:LFVAWS>2.0.CO;2
Whitaker,
J. S., and C. A. Davis, 1994: Cyclogenesis in a saturated environment. J. Atmos. Sci., 52, 889-907.
http://dx.doi.org/10.1175/1520-0469(1994)051<0889:CIASE>2.0.CO;2
Zou., X. A., A. Barcilon, I. M. Navon, J. S.
Whitaker, and D. G. Cacuci, 1993: An adjoint
sensitivity study of blocking in a two-layer isentropic model. Mon. Wea.
Rev., 121,
2834-2857.
http://dx.doi.org/10.1175/1520-0469(1998)055<2095:AASSOT>2.0.CO;2
Whitaker, J. S.,1993: A comparison of primitive and balance equation simulations of baroclinic waves., J. Atmos. Sci., 50, 1519-1530. http://dx.doi.org/10.1175/1520-0469(1993)050<1519:ACOPAB>2.0.CO;2
Whitaker,
J. S. and C. Snyder,1993: The effects of spherical geometry on
the evolution of baroclinic waves, J. Atmos. Sci., 50, 597-612. http://dx.doi.org/10.1175/1520-0469(1993)050<0597:TEOSGO>2.0.CO;2
Whitaker,
J. S. and A. Barcilon,1992: Type B cyclogenesis
in a zonally varying flow. J.
Atmos. Sci., 49,
1877-1892. http://dx.doi.org/10.1175/1520-0469(1992)049<1877:TBCIAZ>2.0.CO;2
Whitaker,
J. S. and A. Barcilon,1992: Genesis of mobile troughs in the upper
troposphere. J. Atmos. Sci., 49, 2097-2107. http://dx.doi.org/10.1175/1520-0469(1992)049<2097:GOMTIT>2.0.CO;2
Whitaker,
J. S., L. W. Uccellini, and K. F. Brill,1988: A
model-based diagnostic study of the rapid development phase of the Presidents'
Day cyclone. Mon. Wea. Rev.,116, 2097-2107. ttp://dx.doi.org/10.1175/1520-0493(1988)116<2337:AMBDSO>2.0.CO;2