Upwelling, is an oceanographic phenomena where wind driven currents in the ocean are overturned causing the warmer and nutrient deficient surface waters to be replaced by colders and nutrient rich waters. The first diagram shows the how the process occurs and the second is a map of the world where upwelling occurs, which there is a direct relationship with the coasts.
More importantly there is an abundance of life in this area as the nutrients rich environments provide energy for all the creatures in the area. They are sights of great activity.
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3 comments:
真的是這樣嗎..................................................
此處是值得一探究竟的好部落格!! .........................................
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