The ASOS Operations and Monitoring Center (AOMC), located at National Weather Service Headquarters in Silver Spring, MD, is a vital part of the Automated Surface Observing System (ASOS). It began life with the activation of the first ASOS sites. Operational monitoring and maintenance dispatch began in June 1992, and then became fully operational on September 1, 1992, when the first ASOS sites were commissioned.
Monitoring and Maintenance Dispatch
In addition to constantly monitoring the weather elements, the ASOS also performs self tests on system status. When a problem is detected, ASOS appends a "maintenance flag" on the next observation. This flag serves as a trigger to alert the AOMC of a possible system malfunction. The AOMC can then dial into the site and diagnose the cause of the trouble. When maintenance is needed, the AOMC notifies the appropriate maintenance point of contact for action.
Site System Support
The AOMC maintains the master database of ASOS site configuration information. This database of 11 files for each site contains about 4000 specific items which define everything about the site from sensor configuration to the digitized voice identification of its airport name. These files are transferred to and from the AOMC automatically as changes occur at each individual site. In addition, the AOMC provides access to a precision time source linked to the National Institute of Standards and Technology (NIST) in Boulder, CO, which keeps all ASOS system clocks synchronized.
Technical Services
The AOMC employs a fully trained team to assist users in the day-to-day operations of ASOS. This service includes a wide variety of support, from archiving high resolution data for aircraft incidents, to answering technical, as well as meteorological, questions regarding ASOS from our customers.
AOMC, Silver Spring, MD
Our Customers
Our customers include a wide variety of individuals and organizations:
The aviation community as well as the public and private meteorological communities
are the prime users of ASOS information. Timely and accurate ASOS weather
information is critical for up-to-date weather forecasts and is essential for safe
air travel. The staff of the AOMC is dedicated to ensuring that ASOS
is disseminating quality information and this information is routinely available
to all our customers.
A paper on
the AOMC that was presented to the American Meteorological Society on January 29, 1996, is provided for your information.
A current table
containing commissioned ASOS sites.
A table
containing monitored ASOS sites.
For questions or comments about the AOMC use our Feedback page, or
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E-mail to: aomc@noaa.gov or call:1-800-242-8194
Page Author: J. Matusiewicz