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Open ocean convection is a process in which the mesoscale ocean circulation and large, strong winds mix layers of water at different depths. Fresher water lying over the saltier or warmer over the colder leads to the stratification of water, or its separation into layers. Strong winds cause evaporation, so the ocean surface cools, weakening the ...
At 09:00 UTC (14:30 IST), the JTWC downgraded the cyclone to a tropical storm, [34] but six hours later, the JTWC re-upgraded the system to a Category 1 tropical cyclone. [35] Between 19:00 UTC and 20:00 UTC (00:30 IST and 01:30 IST) on October 3, Shaheen made landfall over the northern Oman coast, [ 36 ] making it possibly the only cyclone to ...
Convection is often categorised or described by the main effect causing the convective flow; for example, thermal convection. Convection cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place. Granular convection is a similar phenomenon in granular material instead of fluids.
In fluid dynamics, convective mixing is the vertical transport of a fluid and its properties. In many important ocean and atmospheric phenomena, convection is driven by density differences in the fluid, e.g. the sinking of cold, dense water in polar regions of the world's oceans; and the rising of warm, less-dense air during the formation of cumulonimbus clouds and hurricanes.
Enhanced surface (upper level) westerly winds occur near the west (east) side of the active convection. [5] Ocean currents, up to 100 metres (330 ft) in depth from the ocean surface, follow in phase with the east-wind component of the surface winds. In advance, or to the east, of the MJO enhanced activity, winds aloft are westerly.
The Schmidt Ocean Institute has discovered 29 seamounts, hills, and trenches while mapping “about 1.5 million square kilometers” of seafloor, officials say. Massive find made by seafloor ...
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They found high concentrations of small and middle sized drops regardless if larger drops were present. The total number of droplets was between 600 and 1000 m −3, the liquid water content was around 1 g m −3, and a rain rate of approximately 20 mm per hour. The droplets had a mean mass diameter of ~1.6 mm and the maximum diameter recorded ...