Some results of a trade cumulus cloud investigation
Malkus, Joanne Starr
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Cross sections through two trade cumulus clouds are presented, showing the temperatures, turbulence, and water vapor content of the clouds and their nearby environment, the cloud slope, and the external wind profile. The two clouds were studied over the Caribbean Sea on the same afternoon in June, 1952, and were in widely differing phases of their life cycles. The measurements were made from a slow-flying aircraft equipped with sensing instruments and whose behavior as a meteorological tool had been previously studied. Numerous calculations are made from the cross sections, including total and dynamic entrainment, drafts, slopes, and liquid water content. These are, where possible, checked against the corresponding observations. In addition to testing previously evolved theoretical models, and the usefulness of the steady-state hypothesis, the data provide some evidence concerning the formation and growth of larger trade cumulus clouds from several smaller ones and by successive stages.
Originally issued as Reference No. 53-30, series later renamed WHOI-
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Malkus, Joanne Starr; Ronne, Claude (Woods Hole Oceanographic Institution, 1954-03)Some extremely large oceanic trade-mind cumulonimbus clouds extending upwards of 40,000 ft. into a region of strong winds and intense vertical shear have been studied by means of time-lapse photography. A simultaneous still ...
Malkus, Joanne Starr (Woods Hole Oceanographic Institution, 1956-08)The moisture and temperature structure of the trade-wind mixed layer are compared under conditions of strong versus weak trade. The data used are two series of aircraft psychrograph soundings made over the ocean near ...
Malkus, Joanne Starr (Woods Hole Oceanographic Institution, 1954-08)Downdrafts, exhibiting speeds and mass transports comparable to those of the main updrafts, are a common feature of the cumulus clouds studied by the Woods Hole Oceanographic Institution's FBI aircraft in the trade-wind region. ...