Glacier Bay, Alaska murrelet survey raw observations (KM_C) for survey year 2018

During GLBA field surveys, observation data are directly recorded into an ArcGIS file geodatabase through a custom application that runs on laptops and later iPads....在GLBA野外调查期间，观测数据通过运行于笔记本电脑及后续iPad设备的定制化应用程序，直接录入ArcGIS文件地理数据库（ArcGIS File Geodatabase）中。