V2EX downwelling

Downwelling

释义 Definition

下沉涌(海洋/湖泊学):指表层水体因风应力、密度差异或环流作用而向下沉入更深水层的过程。常与 upwelling(上升涌)相对。除海洋外,也可用于湖泊与大气中描述空气/水体的下沉运动。

发音 Pronunciation (IPA)

/danwl/

例句 Examples

Downwelling pushes surface water downward.
下沉涌会把表层水向下推入深层。

Seasonal winds can trigger coastal downwelling, altering nutrient supply and changing where fish and plankton concentrate.
季节性风可以引发近岸下沉涌,进而改变营养盐补给,并影响鱼类与浮游生物的聚集位置。

词源 Etymology

downwellingdown-(向下) + well(涌出/涌流) 组合而成;在地球科学语境中,welling 表示“水体/流体的垂向涌动”,因此 downwelling 字面意为“向下的涌动”,用于描述水体(或空气)从上层向下层的垂直运动。

相关词 Related Words

文学与著名作品 Literary / Notable Works

  • 《Descriptive Physical Oceanography: An Introduction》(George L. Pickard & William J. Emery):在海洋环流与沿岸过程章节中讨论 downwellingupwelling
  • 《Ocean Circulation and Climate: A 21st Century Perspective》(Gerold Siedler, Stephen M. Griffies, John Gould, John Church 编):在海洋环流、次表层水形成与垂向交换的语境中使用 downwelling
  • IPCC Assessment Reports(政府间气候变化专门委员会评估报告):在海洋吸热、碳汇与环流输送相关表述中常出现 downwelling(多为科学报告体裁)。
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