Abstract: Hourly data on the frequencies of all types of precipitation events, heavy precipitation events, trace precipitation events and thunderstorms for more than 100 stations in the United States were processed to generate ...

Abstract: A number of recent observational and theoretical studies indicate that under certain conditions tropical sea surface temperature anomalies may be capable of producing climatic anomalies at extratropical latitudes. According ...

Abstract: The low-frequency (>5 day period) variability observed within four different subsets of the climatology (H1, L1, H2, and L2) as defined by the high and low index polarities of the two leading principal components (PCs) of ...

Abstract: The study consists of two parts: a detailed investigation of wave disturbances in the tropical lower troposphere during a single 6 month period, and a brief survey of wave activity at a single station during four successive ...

Abstract: Annual mean 12-hr wind differences are computed from monthly mean wind statistics at 27 levels between the surface and 10 mb for 105 radiosonde stations that have extended periods of record. The resulting wind difference ...

Abstract: No abstract available.

Abstract: Vertical profiles of 12-hr temperature difference are examined for evidence of structure related to the topographically forced diurnal wind variations. Wavelike features are found with amplitude of the order of 1°C and ...

Abstract: The descent of westerly wind regimes of the quasi-biennial oscillation in the equatorial stratosphere is marked by two regions of strong zonal wind fluctuations in the 8?20 day period range: one in the easterly regime below ...

Abstract: The climate of the eastern Pacific exhibits a pronounced equatorial asymmetry. Boundary layer air originating in the Southern Hemisphere trades crosses the equator and flows into the intertropical convergence zone (ITCZ), ...

Abstract: A global barotropic model, linearized about the 300 mb climatological mean January flow, is perturbed by applying a series of localized forcings distributed throughout the tropics and subtropics. Structures which resemble ...