USGS Global Fiducials

The Global Fiducials Library (GFL) is a long-term archive of images from U.S. National Imagery Systems which represents a long-term periodic record for selected scientifically important sites. The GFL was created to be the collection, archive and data management component of the Global Fiducials Program.

The Global Fiducials Program is a collaborative effort between Federal Civil Agencies, Academia, and the Intelligence Community. The principal goal of the Global Fiducials Program was to build and maintain a long-term record of data to support scientists and policy makers involved in that collaborative effort. At the inception of the Program, it was hoped that at some point - perhaps as much as twenty-five years into the future - the acquired data could be openly released to support future scientists and policy makers as well. Since the 1990s, the Global Fiducials Program has been periodically collecting images of environmentally significant sites around the world.

The GFL, which is the archive that maintains this long-term imagery record, is managed by the U.S. Geological Survey under the National Civil Applications Program, in partnership with the Civil Applications Committee

全球基准图像库（GFL）系美国国家图像系统长期图像档案，记录了选定科学重要地点的长期周期性记录。GFL的建立旨在成为全球基准图像计划的数据收集、存档和管理工作组件。全球基准图像计划是由联邦民事机构、学术界和情报界共同协作的项目。该计划的主要目标是构建并维护长期数据记录，以支持参与该协作项目的科学家和政策制定者。在计划的起始阶段，曾期望在未来某个时刻——或许在项目启动后的二十五年内——所收集的数据能够公开发布，以支持未来的科学家和政策制定者。自1990年代以来，全球基准图像计划定期收集全球环境重要地点的图像。维护这一长期图像记录的GFL由美国地质调查局在国民民用应用计划的框架下管理，并与民用应用委员会合作。