Hudson Bay System Study (BaySys)

Freshwater-marine coupling affects all aspects of the physical, biological and biogeochemical systems within Hudson Bay.
The past century has seen significant hydroelectric development on rivers flowing into Hudson Bay, with more than 21,000 MW of annual production on the Nelson and La Grande river systems. Manitoba Hydro’s operations are closely linked to conditions in Hudson Bay through the regulation of outflows from Lake Winnipeg Regulation and the Lower Nelson River generating stations, as well as through the diversion of water from the Churchill River Diversion, which affect the timing, volume, and location of freshwater outflow into Hudson Bay.

Freshwater entering Hudson Bay is susceptible to modification, both in terms of water quality and quantity, through exchange processes in the watershed, and through climate forcing of the hydrological cycle both in space and time. A unique aspect of this system is the role that freshwater plays on both sea ice thermodynamic and dynamic processes within Hudson Bay. This freshwater-marine coupling affects all aspects of the Hudson Bay physical, biological and biogeochemical systems.

BaySys is led by Principal Investigators Dr. David Barber at the University of Manitoba and Kevin Sydor at Manitoba Hydro. The project is managed and coordinated by Lauren Candlish and Dr. David Landry at the University of Manitoba in collaboration with Kevin Sydor and Karen Wong at Manitoba Hydro.

淡水-海洋耦合作用影响着哈德逊湾内物理、生物及生物地球化学系统的各个方面。过去一个世纪，哈德逊湾流入河流的水力发电得到了显著发展，其中纳尔逊河和拉格兰德河流域的年发电量超过21,000兆瓦。马尼托巴水电公司的运营与哈德逊湾的条件紧密相连，这主要通过温尼伯湖调节和下纳尔逊河发电站的出流调节，以及通过奇尔河分流的水调配来实现，这些措施影响了淡水流入哈德逊湾的时间、体积和位置。进入哈德逊湾的淡水在水质和数量上均易受流域内交换过程及水文学循环在时空上的气候强迫作用的影响。本系统独特之处在于淡水在哈德逊湾海冰的热力学和动力学过程中的作用。这种淡水-海洋耦合作用影响着哈德逊湾物理、生物及生物地球化学系统的各个层面。

BaySys项目由马尼托巴大学的David Barber博士和马尼托巴水电公司的Kevin Sydor博士主持。该项目由马尼托巴大学的Lauren Candlish博士和David Landry博士管理及协调，并与马尼托巴水电公司的Kevin Sydor和Karen Wong合作。