Abstract: TIROS nephanalyses are used to obtain global maps and latitudinal profiles of average cloud amount for the four seasons for the year March 1962 through February 1963. It is found that the gross patterns and season-to-season ...

Abstract: Recent work on mean-motion models of the general circulation has led to renewed interest in the parameterization (i.e., expression in terms of model-generated average variables) of the horizontal flux of heat in the ...

Abstract: The most likely number of days with snow on the ground during an individual month is expressed empirically as a function of the mean temperature and total precipitation for that month, as well as the presence or absence ...

Abstract: No Abstract Available.

Abstract: Basic problems encountered in the preparation of medium- and long-range forecasts by numerical methods are revealed through the use of time-averaged charts. It is found that forecasts up to five days in advance may be ...

Abstract: A synthesis is made of several published studies of the normal heat budget of the lower troposphere over the Northern Hemisphere in winter. Charts of heat sources and sinks are presented, based on two independent methods, ...

Abstract: In order to subdue small scale irregular features of the atmospheric circulation and emphasize the large-scale flow patterns, five-day mean charts showing the pressure distribution at 10,000 feet are presented. It is shown ...

Abstract: Vertical velocities compatible with climatological heating functions are computed. The physical assumptions in the thermodynamic equation incorporate radiational heating, heat flux from the underlying boundary, and heat ...

Abstract: In 1947 a suggestion was made by one of the authors that the existence of fast narrow currents in the upper troposphere was due to the bringing together, or confluence, of warm and cold air masses from northerly and southerly ...

Abstract: Ship weather and sea-temperature observations were used to obtain averaged values of sea and air temperature, dewpoint, windspeed and the transfer of real and latent heat from the sea-surface for a large number of 10-day ...