17 INTO THE TROPOSPHERE
em o over t ttle read International Cloud Atlas runs to t interestingly virtually all t-ypes—mammatus, pileus, nebulosis, spissatus, floccus, and mediocris area sampling— on side meteorology and not terribly mucold. Incidentally, t, mucion of t atlas, produced in 1896,divided clouds into ten basic types, of cushiony-looking wasnumber nine, cumulonimbus.
1t seems to o be oncloud nine.”
For all t and fury of torm cloud, tually a benign and surprisingly insubstantial to a side may contain no more ty-five or ty gallons of er—“about enougo fill a batrefil ed. You can get some sense of terial quality of clouds by strolling ter all, not lacks to fly. to quote trefil again: “If you ypicalfog, you o contact er—not enougogive you a decent drink.” In consequence, clouds are not great reservoirs of er. Only about0.035 percent of ter is floating around above us at any moment.
Depending on er molecule varies lands infertile soil it s or reevaporated directly finds its o ter, may not see sunlig gets really deep. a lake, you are looking at acollection of molecules t a decade. In time is t to be more like a oget 60 percent of1If you ruck by ifully crisp and end to be, in a cumulus cloud t interior of t. Any er molecule t strays beyond tely zapped by to keep its fine edge. Muc soclearly delineated, o be blurry at the edges.
er molecules in a rainfall are returned to tmosped, the skybefore falling again as rain.
Evaporation is a s process, as you