Concept information
Preferred term
CEDAR
Definition
- Coupling, Energetics and Dynamics of Atmospheric Regions (CEDAR) is a focused Global Change program sponsored by the National Science Foundation (NSF) to enhance the capability of ground-based instruments to measure the upper atmosphere and to coordinate instrument and model data for the benefit of the scientific community. The CEDAR Data Base (formerly the Incoherent Scatter Radar Data Base) is a cooperative project between the National Center for Atmospheric Research (NCAR) and several institutions that provide upper atmosphere data and model output for community use. There are 10 GB of data on the cedar.hao.ucar.edu computer in the High Altitude Observatory (HAO) division of NCAR. The CEDAR Data Base, Data Base Catalog, ftp site, and model output data are located at the HAO: "http://cedarweb.hao.ucar.edu/index.html" The CEDAR concept originated in the mid-1980's and was developed over several years through workshops, symposia, and committee deliberations by nearly 100 scientists involved in aeronomical studies. These activities led to a comprehensive report that provided a framework for developing upper atmospheric research in the United States through an evolutionary strategy of instrument development and deployment coordinated with campaign activities related to the globalscale, coupled, nearearth environment. The program has attracted a large number of graduate students and many international collaborators. Guidance is provided by a science steering committee appointed by the NSF Aeronomy and Upper Atmospheric Facilities program directors; scientific feedback to the community is provided by newsletters and an annual summer workshop. Three broad categories embrace the scientific goals of the CEDAR program: (1) dynamics and energetics of the upper atmosphere, with particular emphasis on the hard to observe region between 80 and 150 km; (2) coupling between the mesosphere, ionosphere, thermosphere, exosphere, and magnetosphere; and (3) horizontal coupling between adjacent geographic regions. CEDAR has provided the community with improved spectrometers, interferometers, and imagers; allowed upgrades of existing facilities; and supported the development of lidars and small radars. Several facilities have been established containing a broad array of state of the art tools to provide a solid infrastructure with which to attack outstanding aeronomy problems well into the future. An Interim Review, 1988-1992 Prepared by the CEDAR Science Steering Committee is available at: "http://www.nsf.gov/geo/egch/" Contacts: Barbara Emery High Altitude Observatory National Center for Atmospheric Research P.O. Box 3000 Boulder, CO 80307 Phone: 303-497-1596 FAX: 303-497-1589 Email: emery@ucar.edu Roy Barnes Scientific Computing Division National Center for Atmospheric Research P.O. Box 3000 Boulder, CO 80307 Phone: 303-497-1230 FAX: 303-497-1137 Email: bozo@ucar.edu Mailing address: CEDAR Data Base High Altitude Observatory (HAO) National Center for Atmospheric Research (NCAR) Post Office Box 3000 Boulder, CO 80307-3000, USA (en)
Broader concept
- A - C (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/5fa77dc4-21c6-4cd8-a433-c6cb5af2f650
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