. Compendium of meteorology. Meteorology. ^0,000. .15,000. .10,000. â 16 C. « « / /'/ /â¢/â / \'\.\ \ \ \ f r f t- \ \ \ \ \ \. \ \. SURFACE O V2 H-P8C HORIZONTAL SCALE J Ml RAIN 0 15 30 DRAFT VECTOR SCALE L_J__I FT / SEC "SNOW Fig. 2.âVertical cross section in cumulus stage showing ver- tical motions, inflow, hydrometeors, and temperature distribu- tion. In-cloud temperatures in a strongly developing cell are higher than those of the environment at correspond- ing altitudes. The greatest differences between cloud and environment temperatures are in the regions of strongest updrafts, wh
. Compendium of meteorology. Meteorology. ^0,000. .15,000. .10,000. â 16 C. « « / /'/ /â¢/â / \'\.\ \ \ \ f r f t- \ \ \ \ \ \. \ \. SURFACE O V2 H-P8C HORIZONTAL SCALE J Ml RAIN 0 15 30 DRAFT VECTOR SCALE L_J__I FT / SEC "SNOW Fig. 2.âVertical cross section in cumulus stage showing ver- tical motions, inflow, hydrometeors, and temperature distribu- tion. In-cloud temperatures in a strongly developing cell are higher than those of the environment at correspond- ing altitudes. The greatest differences between cloud and environment temperatures are in the regions of strongest updrafts, which are in the upper parts of the cloud and which are especially well developed at the end of the stage. Although pilots flying through the clouds in this stage report rain or snow, particularly near the end of the stage, these condensation products appear to be suspended by the updraft, since no precipitation is observed at the ground. As a matter of practice, it is found that the end of the cumulus stage and beginning of the mature stage can be signalized by the occurrence of precipitation at the ground. In the cumulus stage there appears to be a considerable concentration of hydrometeors at or slightly above the freezing level in the form of liquid or solid or a mixture of the two. The stronger the updraft the greater is the vertical thickness of the transition zone between water and ice. .30,000_ .25,000 FEET ,40,000_ â¢51 C, .35,000_ ( _-38C, r -/»"*,./. _-26C ; ,20,000. , , - I6C -⢠⢠. ⢠(. ⢠< 15,000. 4. r -n -S-.'' ^^^. ocJ .10,000 4 5,000 i ''' :lii:iiiMf''^ ^ :+17 c. SURFACE £4^x\v-^\\\=.\\N^4^4m^ HORIZONTAL SCALE DRAFT VECTOR SCALE u ⢠RAIN 7 , \ Ml. » SNOW FT/SEC ICE CRYSTALS Fig. 3.âVertical cross section in mature stage showing ver- tical motions, inflow, hydrometeors, and temperature distribu- tion. Mature Stage. The mature stage begins when rain first falls distinctly out of the bottom of the cloud. Except under arid
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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectmeteorology
