The Twilight Zone is that depth zone in the ocean between 100 and 1000m depth where a tremendous amount of activity takes place. Much of the material containing carbon which sinks out of the upper sunlit or "Euphotic" zone is broken down in the twilight zone and then mixes back up to the surface in the winter. If it manages to sink further, this carbon is lost for periods of centuries.ududThe main factor that affects this sedimentation process and the rate of destruction of the sinking particles is the structure and function of the biological community living near the sea surface and in the twilight zone beneath. This is because the planktonic plants and animals living there both generate and destroy particles. The Porcupine Abyssal Plain sustained observatory (PAP) is a heavily instrumented area of the open ocean 350 miles southwest of Ireland and in a water depth of 4800m. The instruments measure a wide variety of properties of the environment above the water, within it and on the seabed and much of the data is transmitted in real time to land via satellite.
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机译:暮光区是海洋中深度在100至1000m之间的深度区域,在那里发生大量活动。从上部日照或“ Euphotic”区域下沉的大部分含碳物质在暮光区域被分解,然后在冬季混合回地面。如果它进一步下沉,那么这些碳会在几个世纪的时间内损失掉。 ud ud影响沉积过程和下沉颗粒破坏速度的主要因素是生活在海面附近的生物群落的结构和功能在下面的暮光区。这是因为居住在那里的浮游植物和动物都产生并破坏颗粒。豪猪深渊平原持续观测站(PAP)是位于爱尔兰西南350英里,水深4800m的广阔海洋中的仪器密集区域。这些仪器可测量水上,海内和海底环境的多种特性,许多数据通过卫星实时传输到陆地。
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