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low index

A relatively low value of the zonal index that, in mid latitudes, indicates a relatively weak westerly component of wind flow (usually implying stronger north–south motion), and the characteristic weather attending such motion. A circulation pattern of this type is commonly called a low-index situation.

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  • ส่วนหนึ่งของคำพูด: noun
  • อุตสาหกรรม/ขอบเขต: Weather
  • Category: Meteorology
  • Company: AMS

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