radar sites

"This is a point feature collating data and location information for 49 radar sites (27 spring and 22 fall) around the Great Lakes collected by the U.S. Fish and Wildlife Service's radar team. See Supplementry Information for more details.
The purpose of this dataset is to provide a information in aerial migration across the Upper Midwest Great Lakes region on a site-by-site basis. This dataset is be used to build other predictive layers which can be used to identify general areas of greater and lesser airspace use by birds and bats. In addition, this dataset also provides information on directional movement of birds and bats as they migrate through the basin, allowing to the identification of lake crossing locations as well as areas where migrants avoid crossing the lakes. "

本数据集为美国鱼类及野生动物管理局（U.S. Fish and Wildlife Service）雷达团队采集的五大湖周边49个雷达站点的点位信息与特征整理数据，其中春季站点27个、秋季站点22个。详见补充材料。
本数据集旨在以站点为单位，提供五大湖上游中西部区域的空中迁徙相关信息。本数据集可用于构建其他预测图层，以识别鸟类与蝙蝠的空域使用强度差异化的通用区域。此外，本数据集还提供了鸟类与蝙蝠途经该流域迁徙时的定向移动信息，可用于识别跨湖迁徙点位以及迁徙动物规避跨湖的区域。