Abstract: No abstract avaiable.

Abstract: Rawinsonde data from the western Pacific region for the summer of 1967 are expanded in terms of complex empirical orthogonal functions and the results are compared with those of previous investigations based on the same ...

Abstract: In large-scale wave disturbances in the lower stratosphere, the poleward and upward velocity components are positively correlated so that typical air trajectories, when projected onto the meridional plane, slope upward ...

Abstract: Departures of lowpass filtered 500 mb height and sea-level pressure anomalies from a Gaussian distribution have been examined, based on Northern Hemisphere operational analyses for 30 winters. At each gridpoint we evaluated ...

Abstract: Two sets of 15-day numerical forecasts are performed with a general circulation model to examine aspects of the mutual interaction between high-frequency, baroclinic-wave variability and the low-frequency components of the ...

Abstract: Low-frequency variability in wintertime 500 mb height is examined, with emphasis on its structure, geographical distribution, and frequency dependence. A 39-year record of 500 mb geopotential height fields from the NMC ...

Abstract: Hierarchical cluster analysis based on the method of Ward is performed on the Northern Hemisphere wintertime 10-day low-pass-filtered 500-hPa height field, using the NMC operational analyses for the period 1946?85. Input ...

Abstract: Northern Hemisphere sea ice concentration, 500-hPa height, sea level pressure, and 1000?500-hPa thickness at 7-day intervals are examined for the period 1972?1989, with emphasis on the winter season. The temporal variability ...

Abstract: Global temperature anomalies associated with ENSO are investigated, making use of a 13-year record of gridded temperature and precipitation data from the microwave sounding unit (MSU). The warm phase of the ENSO cycle ...