Daily Great Lakes Ice Concentration, 1973 Onward, Version 1

This data set consists of daily gridded lake ice concentration for the Laurentian Great Lakes from the NOAA Great Lakes Environmental Research Laboratory (GLERL). The data are provided as gridded ASCII text files and shapefiles along with corresponding browse image files in .jpg format.本数据集包含美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）五大湖环境研究实验室（Great Lakes Environmental Research Laboratory, GLERL）提供的劳伦琴五大湖（Laurentian Great Lakes）每日网格化湖泊冰浓度数据。该数据集以网格化ASCII文本文件、shapefile文件以及对应.jpg格式的浏览图像文件形式提供。