Geology topics
Publications and source records attributed to Karla K. Sprenger.
Chapters 4 and 5 provide a variety of examples of how ASTER and MODIS land science applications are predicated on the availability of consistent and quality data. This chapter portrays a narrative of how those data come to exist at two different data centers, which manage them.
The need for a data dictionary database at the U.S. Geological Survey's EROS Data Center (EDC) was reinforced with the Earth Observing System Data and Information System (EOSDIS) requirement for consistent field definitions of data sets residing at more than one archive center. The EDC requirement addresses the existence of multiple sets with identical field definitions using various naming conventions. The EDC is developing a data dictionary database to accomplish the following foals: to standardize field names for ease in software development; to facilitate querying and updating of the date; and to generate ad hoc reports. The structure of the EDC electronic data dictionary database supports different metadata systems as well as many different data sets. A series of reports is used to keep consistency among data sets and various metadata systems.