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RISENSO Impact on Kelvin Waves and Associated Tropical Convection
Publisher: American Meteorological Society
Abstract: he impact of El Niño?Southern Oscillation (ENSO) on atmospheric Kelvin waves and associated tropical convection is investigated using the ECMWF Re-Analysis, NOAA outgoing longwave radiation (OLR), and the analysis technique ...
The Diurnal Cycle in the Tropics
Publisher: American Meteorological Society
Abstract: A global archive of high-resolution (3-hourly, 0.5° latitude?longitude grid) window (11?12 ?m) brightness temperature (Tb) data from multiple satellites is being developed by the European Union Cloud Archive User Service ...
The Equivalent Barotropic Structure of Waves in the Tropical Atmosphere in the Western Hemisphere
Publisher: American Meteorological Society
Abstract: ropical waves are generally considered to have a baroclinic structure. However, analysis of ERA-Interim and NOAA OLR data for the period 1979?2010 shows that in the equatorial and Northern Hemisphere near-equatorial regions ...
Convectively Coupled Equatorial Waves in High-Resolution Hadley Centre Climate Models
Publisher: American Meteorological Society
Abstract: A methodology for diagnosing convectively coupled equatorial waves is applied to output from two high-resolution versions of atmospheric models, the Hadley Centre Atmospheric Model, version 3 (HadAM3), and the new Hadley ...
The Longitudinal Variation of Equatorial Waves due to Propagation on a Varying Zonal Flow
Publisher: American Meteorological Society
Abstract: he general 1D theory of waves propagating on a zonally varying flow is developed from basic wave theory, and equations are derived for the variation of wavenumber and energy along ray paths. Different categories of behavior ...
Propagation of Rossby Waves of Nonzero Frequency
Publisher: American Meteorological Society
Abstract: The propagation of Rossby waves of positive and negative frequency, corresponding to eastward and westward phase speeds, respectively, is investigated. The techniques used are theoretical analysis, ray tracing, and initial ...
The Equatorial Response to Higher-Latitude Forcing
Publisher: American Meteorological Society
Abstract: The classic view, following Charney and Webster and Holton, is that significant midlatitude forcing of the Tropics can be expected only in regions with westerly winds in the upper troposphere because it is only in these ...
The Influence of the QBO on the Propagation of Equatorial Waves into the Stratosphere
Publisher: American Meteorological Society
Abstract: he variation of stratospheric equatorial wave characteristics with the phase of the quasi-biennial oscillation (QBO) is investigated using ECMWF Re-Analysis and NOAA outgoing longwave radiation (OLR) data. The impact of ...
Convectively Coupled Equatorial Waves. Part III: Synthesis Structures and Their Forcing and Evolution
Publisher: American Meteorological Society
Abstract: Building on Parts I and II of this study, the structures of eastward- and westward-moving convectively coupled equatorial waves are examined through synthesis of projections onto standard equatorial wave horizontal structures. ...
Convectively Coupled Equatorial Waves. Part I: Horizontal and Vertical Structures
Publisher: American Meteorological Society
Abstract: Multilevel 15-yr ECMWF Re-Analysis (ERA-15) and satellite-observed brightness temperature (Tb) data for the period May?October 1992 are used to examine the horizontal and vertical structures of convectively coupled equatorial ...