Google Earth Engine allows users to run algorithms on georeferenced imagery and vectors stored on Google’s infrastructure. The Google Earth Engine API provides a library of functions which may be applied to data for display and analysis. Earth Engine’s public data catalog contains a large amount of publicly available imagery and vector datasets. Private assets can also be created in users’ personal folders.
使用第一步，账号注册来相助。
https://earthengine.google.com/new_signup/
申请的时候需要填明google email、机构、国家、用途 和 全名，申请后需要等待几天。审核通过之后会发邮件通知用户。