Saginaw Bay Restoration Assessment: Degree Flowlines

The U.S. Geological Survey (USGS) created geospatial datasets of potential culvert locations along with flowlines connected toLake Huron as part of the Saginaw Bay Restoration Assessment (SBRA). The Degree Flowlines and Culverts datasets represent the flowline network and culverts in the SBRA study area. Both datasets will be served in the Great Lakes Wetlands Restoration Area mapping application [https://glcwra.wim.usgs.gov/]. The map-based user interface can be used by stakeholders to find potential areas for successful wetlands restoration. Each flowline was assigned a connectivity score describing its level of connectedness to Lake Huron. Low numbers represent fewer disconnections, such as culverts or road crossings, between the reach and the water body requiring no flow network modification to restore the area. For more information, see the full data release documentation and the GLCWRA webpage: https://glcwra.wim.usgs.gov/.

美国地质调查局（U.S. Geological Survey, USGS）作为萨吉诺湾修复评估（Saginaw Bay Restoration Assessment, SBRA）项目的组成部分，构建了与休伦湖相连的汇流线（flowlines）及潜在涵洞（culverts）点位的地理空间数据集。连通度汇流线（Degree Flowlines）与涵洞数据集分别代表了SBRA研究区域内的汇流网络与涵洞设施。上述两类数据集将通过五大湖湿地修复区制图应用平台[https://glcwra.wim.usgs.gov/]对外提供服务。该平台的基于地图的用户界面可供利益相关方查询可成功开展湿地修复的潜在区域。每条汇流线均被赋予连通性评分，用以表征其与休伦湖的连通水平。评分越低，代表该河段与水体之间因涵洞或道路交叉口造成的连通阻隔越少，无需对汇流网络进行改造即可开展该区域的湿地修复工作。如需获取更多详情，请查阅完整的数据发布文档及GLCWRA网页：https://glcwra.wim.usgs.gov/