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Coastal upwelling is the best known type of upwelling, and the most closely related to human activities as it supports some of the most productive fisheries in the world. Coastal upwelling will occur if the wind direction is parallel to the coastline and generates wind-driven currents.
Bach Khoa A Chau 1 Hamlet 5, Suoi Day Commune, Tan Chau District, Tay Ninh Province Tay Ninh 24.2 30 13/05/2019 Tay Ninh Bach Khoa A Chau JSC Operation [84] Tri Viet 1 Hamlet 5, Suoi Day Commune, Tan Chau District, Tay Ninh Province Tay Ninh 24.2 30 20/05/2019 Tri Viet Tay Ninh JSC Operation [168] [84] HCG
A Wind generated current is a flow in a body of water that is generated by wind friction on its surface. Wind can generate surface currents on water bodies of any size. The depth and strength of the current depend on the wind strength and duration, and on friction and viscosity losses, [1] but are limited to about 400 m depth by the mechanism, and to lesser depths where the water is shallower. [2]
The upwelling is less intense and takes place over a wider band under the divergence zone. In wind speeds ranging from 2–12 m/s (6.6–39.4 ft/s) the maximum vertical velocity ranged from 2–10 cm/s (0.79–3.94 in/s) with a ratio of down-welling to wind velocities ranging from −0.0025 to −0.0085. [8]
Vietnam wind resources are mostly located along its coastline of more than 3,000 km, and in the hills and highlands of the northern and central regions. [37] A World Bank ESMAP study (see the table below) estimated that over 39% of Vietnam's area had annual average wind speed over 6 m/s at a height of 65m, equivalent to a total capacity of 512 ...
Phong Nha is widely explained as originating from Hán Nôm 风 牙, which means wind-tooth (wind flowing from the cave and stalactites and stalagmites inside the cave looking like teeth). [22] [23] Another possibility is that Phong Nha, unrelated to the meanings wind and teeth, was the former name of a nearby village. [3] [24] [25]
The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
Vietnam had the fastest growth in coal use in Southeast Asia during 2011-2021, at an annual growth rate of 11%. [4]Data of the Ministry of Industry and Trade (MOIT), 10 months of 2018 coal production was estimated at 34.35 million tons, up 10% over the same period in 2017, of which clean coal output of Vinacomin (TKV) was 29.6 million tons, up 10.9% over the same period last year. [5]