This work was dependent on many other people. In particular, we wish to acknowledge the flight, technical, and scientific crews of the NCAR Electra, and the many flight scientists, in particular Gary Barnes, Alan Blyth, David Raymond, and Robert Grossman. NCAR’s Atmospheric Technology Division did the initial processing of the Electra data in a timely manner, and David Raymond processed the Electra data further. Dingying Wei acknowledges the help of her advisor, Alan Blyth, and David Raymond. We had many useful discussions with Al Cooper and Paul Lawson. Wojciech Grabowski provided model data for the core analysis. Edward Zipser provided advice and encouragement throughout the course of the work. Garpee Barleszi offered acerbic but sometimes useful remarks and advised us on creative financing. The farsighted decision of NOAA and NSF sponsors to encourage student participation in TOGA COARE enabled Igau to participate in the field program. Igau received support through NSF Grants ATM 91-10479, the NCAR Mesoscale and Microscale visitors’ program, and NCAR’s Advanced Study Program. Partial support for LeMone was from NSF Grant ATM9215508. Wei was supported by NSF Grant ATM-9413289 and TOGA COARE Grant ATM-9112043.
Albrecht, B. A., S. K. Cox, and W. H. Schubert, 1979: Radiometric measurements of in-cloud temperature fluctuations. J. Appl. Meteor.,18, 1066–1071.
Barnes, G. M., 1995: Updraft evolution: A perspective from cloud base. Mon. Wea. Rev.,123, 2693–2715.
——, and K. Sieckman, 1984: The environment of fast- and slow-moving tropical mesoscale convective cloud lines. Mon. Wea. Rev.,112, 1782–1794.
Blyth, A. M., W. A. Cooper, and J. B. Jensen, 1988: A study of the source of entrained air in Montana cumuli. J. Atmos. Sci.,45, 3944–3964.
Byers, H. R., and R. R. Braham, 1949: The Thunderstorm Project. U.S. Weather Bureau, U.S. Dept. of Commerce Tech. Rep., 298 pp. [NTIS PB234515.].
Clark, T. L., W. D. Hall, and J. L. Coen, 1996: Source code documentation for the Clark–Hall cloud-scale model: Code version G3CH01. NCAR Tech. Note NCAR/TN-426+STR, 137 pp. [Available from NCAR Information Service, P.O. Box 3000, Boulder, CO 80307.].
Cooper, W. A., 1987: The Ophir Radiometric Thermometer: Preliminary Evaluation. NCAR Tech. Note NCAR/TN-292+STR, 54 pp.
Grabowski, W. W., X. Wu, M. W. Moncrieff, and W. D. Hall, 1998:Cloud-resolving modeling of tropical cloud systems during Phase III of GATE. Part II: Effects of resolution and the third spatial dimension. J. Atmos. Sci.,55, 3264–3282.
Heymsfield, A. J., and M. R. Hjelmfelt, 1981: Dynamical and microphysical observations in two Oklahoma squall lines. Part II:In-situ measurements. Preprints, 20th Conf. on Radar Meteorology, Boston, MA, Amer. Meteor. Soc., 60–65.
——, J. E. Dye, and C. J. Biter, 1979: Overestimates of entrainment from wetting of the aircraft temperature sensors in cloud. J. Appl. Meteor.,18, 92–95.
Jorgensen, D. P., and M. A. LeMone, 1989: Vertical velocity characteristics of oceanic convection. J. Atmos. Sci.,46, 621–640.
——, E. J. Zipser, and M. A. LeMone, 1985: Vertical motions in intense hurricanes. J. Atmos. Sci.,42, 839–856.
——, M. A. LeMone, and S. B. Trier, 1997: Structure and evolution of the 22 February 1993 TOGA COARE squall line: Aircraft observations of structure, circulation, and surface energy fluxes. J. Atmos. Sci.,54, 1961–1985.
Kessler, E., 1969: On the Distribution and Continuity of Water Substance in Atmospheric Circulations. Meteor. Monogr., No. 32, Amer. Meteor. Soc., 84 pp.
Koenig, L. R., and F. W. Murray, 1976: Ice-bearing cumulus cloud evolution: Numerical simulation and generation comparison against observations. J. Appl. Meteor.,15, 747–762.
Lawson, R. P., and A. Rodi, 1987: Airborne tests of sensor wetting in a reverse-flow temperature probe. Extended Abstracts, Sixth Symp. on Meteorological Observations and Instrumentation, New Orleans, LA, Amer. Meteor. Soc., 253–256.
——, and W. A. Cooper, 1990: Performance of some airborne thermometers in cloud. J. Atmos. Oceanic Technol.,7, 480–494.
LeMone, M. A., 1980: On the difficulty of measuring temperature and humidity in cloud: Comments on “shallow convection on day 261 of GATE.” Mon. Wea. Rev.,108, 1702–1705.
——, and E. J. Zipser, 1980: Cumulonimbus vertical velocity events in GATE. Part I: Diameter, intensity, and mass flux. J. Atmos. Sci.,37, 2444–2457.
——, G. M. Barnes, J. C. Fankhauser, and L. F. Tarleton, 1988: Perturbation pressure fields measured by aircraft around the cloud-base updraft of deep convective clouds. Mon. Wea. Rev.,116, 313–327.
——, E. J. Zipser, and S. B. Trier, 1998: The role of environmental shear and thermodynamic conditions in determining the structure and evolution of mesoscale convective systems during TOGA COARE. J. Atmos. Sci.,55, 3493–3518.
Lenschow, D. H., 1972: The measurement of air velocity and temperature using the NCAR Buffalo aircraft Measuring System. NCAR Tech. Note NCAR-TN-EDD-74, 39 pp.
——, and W. T. Pennell, 1974: On the measurement of in-cloud and wet-bulb temperature from an aircraft. Mon. Wea. Rev.,102, 447–454.
Lucas, C., E. J. Zipser, and M. A. LeMone, 1994: Vertical velocity in oceanic convection off tropical Australia. J. Atmos. Sci.,51, 3183–3193.
Marwitz, J. D., 1973: Trajectories within the weak echo region of hailstorms. J. Appl. Meteor.,12, 1174–1182.
——, A. H. Auer Jr., and D. L. Veal, 1972: Locating the organized updraft on severe thunderstorms. J. Appl. Meteor.,11, 236–238.
Musil, D. J., A. J. Heymsfield, and P. L. Smith, 1986: Microphysical characteristics of a well-developed weak echo region in a High Plains supercell thunderstorm. J. Climate Appl. Meteor.,25, 1037–1051.
Rotunno, R., and J. B. Klemp, 1982: The influence of shear-induced pressure on thunderstorm motion. Mon. Wea. Rev.,110, 136–151.
Srivastiva, R. C., 1987: A model of intense downdrafts driven by the melting and evaporation of precipitation. J. Atmos. Sci.,44, 1752–1773.
Trier, S. B., 1997: Multiscale analysis of a simulated oceanic mesoscale convective system and its environmental impact. Ph.D. dissertation, Colorado State University, 241 pp. [Available from University Microfilm, 305 N. Zeeb Rd., Ann Arbor, MI 48106.].
——, W. C. Skamarock, and M. A. LeMone, 1997: Structure and evolution of the 22 February squall line: Organization mechanisms inferred from numerical simulation. J. Atmos. Sci.,54, 386–407.
Webster, P. J., and R. Lukas, 1992: TOGA COARE: The Coupled Ocean–Atmosphere Response Experiment. Bull. Amer. Meteor. Soc.,73, 1377–1416.
Wei, D., A. M. Blyth, and D. J. Raymond, 1998: Buoyancy of convective clouds in TOGA COARE. J. Atmos. Sci.,55, 3381–3391.
Yang, M.-J., and R. A. Houze Jr., 1995: Multicell squall line structure as a manifestation of vertical trapped gravity waves. Mon. Wea. Rev.,123, 641–661.
Zipser, E. J., and M. A. LeMone, 1980: Cumulonimbus vertical velocity events in GATE. Part II: Synthesis and model core structure. J. Atmos. Sci.,37, 2458–2469.
——, R. J. Meitin, and M. A. LeMone, 1981: Mesoscale motion fields associated with a slowly moving GATE convective band. J. Atmos. Sci.,38, 1725–1750.