Oscillating wind with a period P induce variability with the following characteristics in the upper few hundred meters of the equatorial zone (5øN to 5øS) of the ocean. (1) P < 10 days: these winds fluctuate too rapidly to generate strong currents and excite primarily waves. (2) 10 days < P < 50 days: At these periods the winds generate intense equatorial jets in the upper 50 m, but at greater ...

Mercury has a terrestrial-like magnetosphere which is usually taken as scaled-down-version of Earth's with similar current system. We examine Mercury's magnetospheric system based on survey magnetic field measured by the Surface, Space Environment, Geochemistry, and Ranging spacecraft well computer simulations. show that there no significant Earth-like ring flowing westward around Mercury, inst...

El Niño–Southern Oscillation (ENSO) induces climate anomalies around the globe. Atmospheric general circulation model simulations are used to investigate how ENSO-induced teleconnection patterns during boreal winter might change in response to global warming in the Pacific–North American sector. As models disagree on changes in the amplitude and spatial pattern of ENSO in response to global war...

Abstract Blocking flow configurations, which tend to accompany strong circulation anomalies and therefore can cause extreme weather conditions, have recently been studied in relation large-scale wave breaking (WB). Although WB events detected often from an instantaneous morphology perspective, the present study proposes a new approach for detection wave-activity perspective focusing on its accu...

Saturn has an intense and broad eastward equatorial jet with a complex three-dimensional structure mixed with time variability. The equatorial region experiences strong seasonal insolation variations enhanced by ring shadowing, and three of the six known giant planetary-scale storms have developed in it. These factors make Saturn's equator a natural laboratory to test models of jets in giant pl...

An ocean general circulation model (OGCM) is used to investigate the low-frequency (period longer than 90 days) rectification of atmospheric intraseasonal variability (10–90-day periods) in zonal surface current and transport of the equatorial Indian Ocean. A hierarchy of OGCM solutions is found in an actual tropical Indian Ocean basin for the period of 1988–2001. To help to identify and isolat...

An attempt is made to explain the mechanism of a hook-echo formation on the southwestern cdgc of an eastward-moving cumulonimbus cell. The conditions necessary for originating a hook-echo circulation through this proposed mechanism are: significant absolute vorticity within the subcloud layer, intcn,se updraft to bring the low-level moist air into the cloud, and a vertical wind shear which stee...

The luminous tongues tend to be narrower and having We present ground-based electromagnetic data from the may occasionally develop into auroral torches which are MIRACLE and BEAR networks and satellite optical narrow, finger-like auroral forms that extend several observations from the UVI and PIXIE instruments on the degrees of latitude poleward from the auroral oval. Inside Polar satellite of ...

A global model with superparameterized physics is used to shed light on the observed regionality of convectively coupled Kelvin waves and Madden-Julian Oscillation (MJO). series aquaplanet simulations over zonally uniform sea-surface temperatures performed, in which axisymmetric structure background zonal flow altered through nudging, while maintaining a quasi-fixed rainfall climatology. Result...