This research was supported by the David and Lucile Packard Foundation and by the Cooperative Institute for Climate Applications and Research (CICAR) Award NA03OAR4320179 from the National Oceanic and Atmospheric Administration and the U.S. Department of Commerce. We thank Tapio Schneider for useful discussions and Phil Rasch and Natalie Mahowald for assistance with MATCH.
Ebert, E., , U. Schumann, , and R. Stull, 1989: Nonlocal turbulent mixing in the convective boundary layer evaluated from large eddy simulation. J. Atmos. Sci., 46 , 2178–2207.
Hack, J., , J. Kiehl, , and J. Hurrell, 1998: The hydrologic and thermodynamic characteristics of the NCAR CCM3. J. Climate, 11 , 1179–1206.
Held, I., , and M. Suarez, 1994: A proposal for the intercomparison of the dynamical cores of atmospheric general circulation models. Bull. Amer. Meteor. Soc., 75 , 1825–1830.
Kelly, K., , A. Tuck, , and T. Davies, 1991: Wintertime asymmetry of upper tropospheric water between the Northern and Southern Hemispheres. Nature, 353 , 244–247.
Larson, V., 1999: The relationship between the transilient matrix and the Green’s function for the advection–diffusion equation. J. Atmos. Sci., 56 , 2447–2453.
Pierrehumbert, R., , and R. Roca, 1998: Evidence for control of Atlantic subtropical humidity by large scale advection. Geophys. Res. Lett., 25 , 4537–4540.
Rasch, P., , and D. Williamson, 1990: Computational aspects of moisture transport in global models of the atmosphere. Quart. J. Roy. Meteor. Soc., 116 , 1071–1090.
Rasch, P., , and J. Kristjansson, 1998: A comparison of the CCM3 model climate using diagnosed and predicted condensate parameterizations. J. Climate, 11 , 1587–1614.
Rasch, P., , B. Boville, , and G. Brasseur, 1995: A three-dimensional general circulation model with coupled chemistry for the middle atmosphere. J. Geophys. Res., 100 , 9041–9072.
Rasch, P., , N. Mahowald, , and B. Eaton, 1997: Representations of transport, convection, and the hydrologic cycle in chemical transport models: Implications for the modeling of short-lived and soluble species. J. Geophys. Res., 102 , D23,. 28127–28138.
Salathe, E. P., , and D. L. Hartmann, 1997: A trajectory analysis of tropical upper-troposphereic moisture and convection. J. Climate, 10 , 2533–2547.
Sherwood, S., 1996: Maintenance of the free-tropospheric tropical water vapor distribution. Part II: Simulation by large-scale advection. J. Climate, 9 , 2919–2934.
Simmons, A., , and D. Burridge, 1981: An energy and angular-momentum conserving vertical finite-difference scheme and hybrid vertical coordinates. Mon. Wea. Rev., 109 , 758–766.
Spencer, R., , and W. Braswell, 1997: How dry is the tropical free troposphere? Implications for global warming theory. Bull. Amer. Meteor. Soc., 78 , 1097–1106.
Stull, R., 1984: Transilient turbulence theory. Part I: The concept of eddy-mixing across finite distances. J. Atmos. Sci., 41 , 3351–3367.
van Leer, B., 1979: Toward the ultimate conservative difference schemes. V: A second order sequel to Godunov method. J. Comput. Phys., 32 , 101–136.
Zhang, G., , and N. McFarlane, 1995: Sensitivity of climate simulations to the parameterization of cumulus convection in the Canadian Climate Centre general circulation model. Atmos.–Ocean, 33 , 407–446.