Long-term mooring data in Lake Melville, Labrador: temperature, salinity and chlorophyll-a

Climate change and the construction of hydroelectric dams have resulted in modified hydrography in the Lake Melville estuary, the largest estuary of Labrador. Changes in hydrography, especially in the seasonality of freshwater outflow, can have direct impacts on primary productivity as well as fish and zooplankton abundance and distribution. This project addresses critical knowledge gaps in the dynamics of the physical environment of the Lake Melville across complete year cycles. Using a long-term oceanographic mooring equipped with temperature sensors, CTDs, and a fluorometer we measure continuous changes in temperature, salinity, and chlorophyl a.

气候变化与水电大坝的修建，已导致拉布拉多（Labrador）地区最大河口——梅尔维尔湖河口（Lake Melville estuary）的水文状况（hydrography）发生改变。水文状况的变化，尤其是淡水径流的季节节律改变，会对初级生产力（primary productivity）、鱼类与浮游动物（zooplankton）的丰度及分布格局产生直接影响。本研究旨在填补梅尔维尔湖河口全年尺度物理环境动态相关的关键认知空白。本研究将依托一套搭载温度传感器、多台CTD（温盐深剖面仪）与荧光计的长期海洋观测锚碇系统，对温度、盐度与叶绿素a（chlorophyll a）的连续变化开展持续监测。