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单词 nival
释义

nival

/ˈnʌɪv(ə)l /
adjective
Relating to or characteristic of a region of perpetual snow: the nival zone, the area above about 2,000 metres...
  • Rivers of the Mackenzie Basin exhibit several seasonal flow patterns that include the nival (snowmelt dominated), proglacial (influenced by glacier melt), wetland, prolacustrine (below large lakes), and regulated flow regimes.
  • The nival regime is modified where additional sources of water supply or significant storage mechanisms alter the streamflow pattern.
  • The prolacustrine regime provides a strong contrast to the nival pattern, in that large lake storage strongly attenuates high flows and maintains steady runoff during the winter.

Origin

Mid 17th century: from Latin nivalis, from nix, niv- 'snow'.

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更新时间:2024/9/20 6:29:37