NASA-Sponsored U.S. FGDC Remote Sensing Standards

摘要

NASA has sponsored the development of two FGDC remote sensing related standards, the FGDC Content Standard for Remote Sensing Swath Data and the FGDC Content Standard for digital Geospatial Metadata: Extensions for Remote Sensing Metadata. The primary projective of the swath standard is to define the content for swath type of remote sensing data, thereby providing a solid basis from which to develop interoperable data formats for this common form of remote sensing data. The standard defines the minimal content requirements for a swath and the relationships among its individual components. It also discusses the treatment of optional supporting information within a swath. The standard provides a common framework for organizing a wide range of remotely sensed data, ranging from scanning, profiling, staring, or push-broom type remote sensing instruments, whether they be ground-based, shipboard, airborne, or space-borne. The remote sensing metadata standard is the extensions of the FGDC geospatial metadata standard. The purpose of these extensions is to provide a common terminology and set of definitions for documenting geospatial data obtained by remote sensing, within the framework of the FGDC Content Standard for Digital Geospatial Metadata. These Remote Sensing Extensions are to provide additional information particularly relevant to remote sensing: the geometry of the measurement process, the properties of the measuring instrument, the processing of raw readings into geospatial information, and the distinction between metadata applicable to an entire collection of data and those applicable only to component parts. Creating these extensions allow the accurate description of geospatial data derived from remote sensing measurements using a standard FGDC form. While the swath standard has already been approved by FGDC, the remote sensing metadata standard is being developed currently. We welcome comments and inputs from the international remote sensing community for the improvements of the draft remote sensing metadata standard.