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NORRIS, JOEL

Associate Professor of Climate and Atmospheric Sciences

Degrees:

• B.S., California Institute of Technology
• Ph.D., University of Washington

Research Interests:

• Cloud feedbacks and global warming
• Coupled atmosphere-ocean variability
• Effects of climate change on California
• Boundary-layer cloud processes
• Aerosol-cloud interactions
• Solar dimming and brightening

Courses Recently Taught:

• SIO 209: Special Topics
• SIO209: Special Topics
• SIO217B: Atmospheric & Climate Sci II

Mentoring:

• Dwyer, John (Graduate; 2009-2009)
• Mauger, Guillaume (Post Doc; 2008-2008)
• Ruckstuhl, Christian (Post Doc; 2008-2008)
• Mauger, Guillaume (Graduate; 2006-2008)
• Mansbach, David (Graduate; 2004-2008)
• Hawkins, Lelia (Undergrad; 2003-2004)
• Gordon, Neil (Graduate; 2002-2008)
• Beitzel, Tamara (Undergrad; 2001-2001)

Clement, A. C., R. Burgman, and J. R. Norris, 2009: Observational and model evidence for positive low-level cloud feedback. Science, 325, 460-426.

Norris, J. R., and M. Wild, 2009: Trends in aerosol radiative effects over China and Japan inferred from observed cloud cover, solar "dimming," and solar "brightening". J. Geophys. Res. -Atmos., 114, D00D15, doi:10.1029/2008JD011378.

Ruckstuhl, C., and J. R. Norris, 2009: How do aerosol histories affect solar ‘‘dimming’’ and ‘‘brightening’’ over Europe?: IPCC-AR4 models versus observations. J. Geophys. Res., 114, D00D04, doi:10.1029/2008JD011066.

Norris, J. R., and A. Slingo, 2009: Trends in observed cloudiness and Earth’s radiation budget: what do we not know and what do we need to know? in Clouds in the Perturbed Climate System, edited by J. Heintzenberg and R. J. Charlson, MIT Press, 17-36.

Norris, J. R., 2008: Observed interdecadal changes in cloudiness: real or spurious? in Climate Variability and Extremes During the Past 100 Years, edited by S. Brönnimann et al., Springer, 169-178.

Mauger, G. S., and J. R. Norris, 2007: Meteorological bias in satellite estimates of aerosol-cloud relationships. Geophys. Res. Lett., 34, L16824, doi:10.1029/2007GL029952.

Norris, J. R., and M. Wild, 2007: Trends in aerosol radiative effects over Europe inferred from observed cloud cover, solar “dimming”, and solar “brightening”. J. Geophys. Res. -Atmos., 112, D08214, doi:10.1029/2006JD007794.

Mansbach, D. K., and J. R. Norris, 2007: Low-level cloud variability over the equatorial cold tongue in observations and GCMs. J. Climate, 20, 1555-1570.

Alexander, M., J. Yin, G. Branstator, A. Capotondi, C. Cassou, R. Cullather, Y.-O. Kwon, J. Norris, J. Scott, and I. Wainer, 2006: Extratropical atmosphere-ocean variability in CCSM3. J. Climate, 19, 2496-2525.

Pepin, N. C., and J. R. Norris, 2005: An examination of the differences between surface and free-air temperature trend at high-elevation sites: relationships with cloud cover, snow cover, and wind. J. Geophys. Res. -Atmos., 110, D24112, doi:10.1029/2005JD006150.

Norris, J. R., and S. F. Iacobellis, 2005: North Pacific cloud feedbacks inferred from synoptic-scale dynamic and thermodynamic relationships. J. Climate, 18, 4862-4878.

Norris, J. R., 2005: Trends in upper-level cloud cover and surface divergence over the tropical Indo-Pacific Ocean between 1952 and 1997. J. Geophys. Res. -Atmos., 110, D21110, doi:10.1029/2005JD006183.

Weaver, C. P., J. R. Norris, N. D. Gordon, and S. A. Klein, 2005: Dynamical controls on sub–global climate model grid-scale cloud variability for Atmospheric Radiation Measurement Program (ARM) case 4. J. Geophys. Res. -Atmos., 110, D15S05, doi:10.1029/2004JD005022.

Gordon, N. D., J. R. Norris, C. P. Weaver, and S. A. Klein, 2005: Cluster analysis of cloud regimes and characteristic dynamics of midlatitude synoptic systems in observations and a model. J. Geophys. Res. -Atmos., 110, D15S17, doi:10.1029/2004JD005027.

Kim, B.-G., S. A. Klein, and J. R. Norris, 2005: Continental liquid water cloud variability and its parameterization using Atmospheric Radiation Measurement data. J. Geophys. Res. -Atmos., 110, D15S08, doi:10.1029/2004JD005122.

Norris, J. R., 2005: Multidecadal changes in near-global cloud cover and estimated cloud cover radiative forcing. J. Geophys. Res. -Atmos., 110, D08206, doi:10.1029/2004JD005600.

Miller, A. J., M. A. Alexander, G. J. Boer, F. Chai, K. Denman, D. J. Erickson, R. Frouin, A. J. Gabric, E. A. Laws, M. R. Lewis, Z. Liu, R. Murtugudde, S. Nakamoto, D. J. Neilson, J. R. Norris, J. C. Ohlmann, R. I. Perry, N. Schneider, K. M. Shell, and A. Timmermann, 2003: Potential feedbacks between Pacific Ocean ecosystems and interdecadal climate variations. Bull. Amer. Meteor. Soc., 84, 617-633.

Norris, J. R., 2001: Has Northern Indian Ocean cloud cover changed due to increasing anthropogenic aerosol? Geophys. Res. Lett., 28, 3271-3274.

Norris, J. R., and C. P. Weaver, 2001: Improved techniques for evaluating GCM cloudiness applied to the NCAR CCM3. J. Climate, 14, 2540-2550.

Norris, J. R., 2000: What can cloud observations tell us about climate variability? Space Science Reviews, 94, 375-380.

Norris, J. R., 2000: Interannual and interdecadal variability in the storm track, cloudiness, and sea surface temperature over the summertime North Pacific. J. Climate, 13, 422-430.

Norris, J. R., and S. A. Klein, 2000: Low cloud type over the ocean from surface observations. Part III: relationship to vertical motion and the regional surface synoptic environment. J. Climate, 13, 245-256.

Norris, J. R., 1999: On trends and possible artifacts in global ocean cloud cover between 1952 and 1995. J. Climate, 12, 1864-1870.

Norris, J. R., Y. Zhang, and J. M. Wallace, 1998: Role of low clouds in summertime atmosphere–ocean interactions over the North Pacific. J. Climate, 11, 2482-2490.

Zhang, Y., J. R. Norris, and J. M. Wallace, 1998: Seasonality of large scale atmosphere–ocean interaction over the North Pacific. J. Climate, 11, 2473-2481.

Norris, J. R., 1998: Low cloud type over the ocean from surface observations. Part II: geographical and seasonal variations. J. Climate, 11, 383-403.

Norris, J. R., 1998: Low cloud type over the ocean from surface observations. Part I: relationship to surface meteorology and the vertical distribution of temperature and moisture. J. Climate, 11, 369-382.

Klein, S. A., D. L. Hartmann, and J. R. Norris, 1995: On the relationships among low-cloud structure, sea surface temperature, and atmospheric circulation in the summertime northeast Pacific. J. Climate, 8, 1140-1155.

Norris, J. R., and C. B. Leovy, 1995: Comments on “Trends in global marine cloudiness and anthropogenic sulphur”. J. Climate, 8, 2109-2110.

Norris, J. R., and C. B. Leovy, 1994: Interannual variability in stratiform cloudiness and sea surface temperature. J. Climate, 7, 1915-1925.