The ARM Climate Research Facility maintains research sites around the globe, each with a suite of instruments that must be maintained and calibrated to ensure the best possible climate measurements. To capture timely calibration statistics from the various sites, ARM Operations staff have designed and released the Common Calibration Database (CCDB), which provides a central location to store calibration information for all ARM instruments. The CCDB is part of the Operations Status System (OSS), the database that tracks the states of various instrument and computer systems and components at each ARM site.
Fields in the database track the instrument name and/or instrument subcomponent, serial number, date of calibration or calibration check, who performed the calibration or calibration check, the result, and the date of the next calibration or calibration check. Advanced search functionality allows users to search on any of those fields. The database also allows users to upload supporting documentation, such as calibration procedures or a calibration certificate.
Previously, instrument calibration information was stored in a variety of formats in many different locations. The lack of a centralized storage system made it difficult for users to access the data they needed. The information provided in the new database will be used by instrument mentors, Site Scientists, the Data Quality Office, and others to ensure that instruments are properly maintained and calibrated.