Abstract: Rossby wave activity propagating into the eastern tropical Pacific from the midlatitudes during northern winter is examined in some detail. These waves are associated with the intrusion of high potential vorticity air into ...

Abstract: pace?time spectral analysis of tropical cloudiness data shows strong evidence that convectively coupled n = 0 mixed Rossby?gravity waves (MRGs) and eastward inertio-gravity waves (EIGs) occur primarily within the western/central ...

Abstract: A wavenumber-frequency spectrum analysis is performed for all longitudes in the domain 15°S?15°N using a long (?18 years) twice-daily record of satellite-observed outgoing longwave radiation (OLR), a good proxy for deep ...

Abstract: This paper presents an investigation of the mechanisms giving rise to the main intraseasonal mode of convection in the African monsoon during northern summer, here identified as the quasi-biweekly zonal dipole (QBZD). The ...

Abstract: he relationship between n = 0 mixed Rossby?gravity waves (MRGs) and eastward inertio-gravity waves (EIGs) from Matsuno?s shallow-water theory on an equatorial beta plane is studied using statistics of satellite brightness ...

Abstract: Equatorward-propagating wave trains in the upper troposphere are observed to be associated with deep convection over the eastern tropical Pacific on the submonthly timescale during northern winter. The convection occurs ...

Abstract: he coupling between tropical convection and zonally propagating gravity waves is assessed through Fourier analysis of high-resolution (3-hourly, 0.5°) satellite rainfall data. Results show the familiar enhancement in power ...

Abstract: A case study of a convectively coupled Kelvin wave in the eastern Pacific intertropical convergence zone (ITCZ) is presented, as observed during the 1997 Pan American Climate Studies (PACS) Tropical Eastern Pacific Process ...

Abstract: Lagged cross correlations between outgoing longwave radiation (OLR) and National Meteorological Center global analyses are utilized to isolate the preferred upper-level and surface circulation anomalies associated with ...

Abstract: Statistical evidence is presented to support the notion that tropical convection in the eastern Pacific and Atlantic intertropical convergence zone (ITCZ) during northern winter can be forced by disturbances originating ...