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The WWW interface to the CODIAC management system (Brazille, 1993 and 1996) provides users with access to the COMET case study data. CODIAC provides two methods for finding data of interest. First, the user can browse a list of all the projects and case studies in CODIAC. In addition to the COMET case study data, CODIAC contains data from field projects supported by JOSS including VORTEX, GCIP, STORM-FEST, ACE, and TOGA COARE. From the list of projects and case studies, users can select a case study or project and advance to a list of all the datasets available for that case study or project. Clicking on a particular dataset allows the user to view a variety of data about that dataset including a sentence or two describing the data, the type of data and its format, the latitude/longitude range of the data, and the time range of the data.
The second method for finding data through CODIAC allows users to search all the data in the CODIAC system by latitude/longitude range, time range, type of data, and key word. This gives the user an easy method for checking to see if any of the data in CODIAC fits their needs.
Tools are being developed to make the case study data easier to use. One tool already available is a GRIB to GEMPAK translator that allows users to order data that is stored in CODIAC as GRIB data and receive GEMPAK files. Another tool allows users to visually browse data stored on CODIAC as GEMPAK surface files.
The CODIAC system continues to evolve. The future will bring a new interface using Java and CORBA technologies. This will mean a more interactive and responsive interface with capabilities to perform advanced data browsing, such as interactively overlaying data from multiple datasets. The current HTML/CGI interface will remain operational as well in order to continue to support users that cannot or choose not to run Java. The developers of CODIAC are also involved in the NOAAServer project ( http://www.joss.ucar.edu/NOAAServer/) which will provide interactive access to data in other NOAA data archives utilizing the same Java and CORBA interface technologies.
Data in the CODIAC system can be ordered by three different methods depending upon the way the data is stored. Data on removable media can only be delivered by mail (for instance, complete case studies are available on 8mm tapes). If the data is on-line, the data can be delivered by FTP. There are two options for FTP delivery. First, the data can be placed on the CODIAC anonymous FTP site for the user to pick up. When the data is ready, the user is sent e-mail letting them know where to get the data. The second FTP option is to have the data automatically delivered to the user's machine. Again, once the data has been delivered, the user is notified by an e-mail message.
To access COMET case study data, go to
This page provides links to the CODIAC pages for each of the COMET case studies available. The page also links to a page listing all the projects available in CODIAC and to a page that allows for searching all datasets in CODIAC.
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