Results 221 to 230 of about 2,535 (244)
Some of the next articles are maybe not open access.
Secular Variation of Northern Hemisphere 50 kPa Geopotential Height
Journal of Climate, 1988Abstract There is accumulating evidence in the literature that different short-period climate regimes (subclimates) may have characterized the Northern Hemisphere during the past 40 years. We, therefore, investigate the 40-yr record of 50 kPa height (1946–85) and analyze the time series of zonal anomalies stratified by season.
John L. Knox +3 more
openaire +1 more source
Geopotential Height Errors in NWS Rawinsonde Data at Denver
Bulletin of the American Meteorological Society, 1988A recent examination of Denver National Weather Service radiosonde data has revealed an error in the procedure used to establish the surface baseline pressure for Denver soundings obtained between 14 April 1983 and 2 March 1988. As a result of this error the baroswitch was improperly set on each sounding, resulting in geopotential heights that average ...
Charles G. Wade, Stanley L. Barnes
openaire +1 more source
On the Interpretation of Geopotential Height Tendency Equations
Monthly Weather Review, 1993Abstract The conceptual model for height tendency presented by Hirschberg and Fritsch directly links upper-level virtual temperature tendency with low-level height tendency, overlooking the essential dynamics of mass divergence. An analysis of the complete height tendency equation shows that upper-level virtual temperature change car only indirectly ...
W. James Steenburgh, James R. Holton
openaire +1 more source
Survey Review, 1963
Abstract Some geodetic methods are geometrical, some are physical, and others have something of both these qualities. In recent years there has been a tendency to mark this distinction more clearly, to the benefit of geodetic science in general.
openaire +1 more source
Abstract Some geodetic methods are geometrical, some are physical, and others have something of both these qualities. In recent years there has been a tendency to mark this distinction more clearly, to the benefit of geodetic science in general.
openaire +1 more source
Chinese Journal of Geophysics, 2007
AbstractGeopotential height data at 500hPa level in recent 50 years is used to investigate the evolutive laws of Antarctic, Equatorial and Arctic geopotential heights, zonal wind, and the correlation between one and another. Results show that Antarctic (Equatorial) geopotential height descends (ascends) evidently.
openaire +1 more source
AbstractGeopotential height data at 500hPa level in recent 50 years is used to investigate the evolutive laws of Antarctic, Equatorial and Arctic geopotential heights, zonal wind, and the correlation between one and another. Results show that Antarctic (Equatorial) geopotential height descends (ascends) evidently.
openaire +1 more source
Bispectral analysis of geopotential‐height anomalies for synoptic‐intraseasonal time‐scales
Quarterly Journal of the Royal Meteorological Society, 2001AbstractSpectral decomposition of the third moment of geopotential‐height fluctuations, bispectral analysis, is considered as a convenient and straightforward method of studying the nonlinear three‐wave interactions between spectral constituencies of anomalies.
VV EFIMOV, MV SHOKUROV
openaire +1 more source
Space-Time Spectral Analyses of Northern Hemisphere Geopotential Heights
Journal of the Atmospheric Sciences, 1983Abstract A space-time spectral analysis of a long time series of observed geopotential heights for each season at several levels and latitudes of the Northern Hemisphere was performed as part of a continuing investigation of large-scale traveling waves. The data set that is analyzed consists of the first six zonal wavenumbers.
Peter Speth, Roland A. Madden
openaire +1 more source
The influence of geopotential heights on New South Wales rainfall
Meteorology and Atmospheric Physics, 1997An investigation of the relationships between New South Wales (NSW) seasonal rainfalls and fluctuations of geopotential height at four Australian radiosonde stations is presented. The connection between the Southern Oscillation Index (SOI) and the geopotential height was explored up to the mid-troposphere.
M. J. Nazemosadat, I. Cordery
openaire +1 more source
The linkage between geopotential height and monthly precipitation in Iran
Theoretical and Applied Climatology, 2018This paper investigates the linkage between large-scale atmospheric circulation and monthly precipitation during November to April over Iran. Canonical correlation analysis (CCA) is used to set up the statistical linkage between the 850 hPa geopotential height large-scale circulation and monthly precipitation over Iran for the period 1968–2010.
Amin Shirvani +2 more
openaire +1 more source
Projection of time-mean geopotential heights onto normal, hough modes
Meteorology and Atmospheric Physics, 1988Bernhard Haurwitz discussed theoretically the roles of forced stationary and traveling free waves in the atmosphere. At least some of the prediction errors of the large-scale weather are thought to result from the improper partitioning of energy between the forced stationary fields and free traveling or normal modes of the forecast models.
J. J. Tribbia, R. A. Madden
openaire +1 more source