Bulletin of the American Meteorological Society, Volumen32

activity air mass aircraft altitude American Meteorological Society amplitude anemometer anticyclones associated atmosphere average balloons BULLETIN chart circulation climatic climatology cloud seeding cold front convective convergence cumulus cyclonic Denver distribution easterly effect February 13 feet field flight forecasting frequency hail heat height hurricane ice crystals inches increase indicated instrument intensity Jerome Namias Krakatoa latitude layer located maximum measurements ment microseisms miles moisture nephoscope normal November nuclei observed occurred ocean operation pattern period precipitation pressure Pyrheliometer radar radiosonde rain rainfall recorded region reported Research season shown in FIGURE silver iodide solar radiation stations supercooled surface Sverre Petterssen synoptic temperature tests thunderstorm tion tornado tropopause trough typhoon U. S. Weather Bureau United United Air Lines University upper values variations velocity vertical Washington wave Weather Service winter