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Registering MD File Schemas

The Unidata McIDAS-X distribution contains the following MD file schemas in the ~mcidas/data directory:

SCHEMA Name Purpose
DCASTA AREA statistics
DCBPRO FSL wind profiler antenna data
DCETAMOS NOAAPORT ETA MOS
DCFO14 FOUS14 data
DCGFSMOS NOAAPORT GFS MOS
DCGRET GOES satellite retrieval data
DCIHGT Upper air data interpolated by height
DCIRAB Mandatory and significant level upper air data
DCISEN Upper air data in isentropic coordinates
DCISFC Surface SAO/METAR data
DCISHP Ship/buoy data
DCNAMMOS NOAAPORT NAM MOS
DCNGMMOS NOAAPORT NGM MOS
DCNLDN NLDN lightning data
DCPIRP Pilot report data
DCRAOB Mandatory level upper air data (archaic)
DCRAWI Rawinsonde data (archaic)
DCSVCA Surface SAO/METAR data (archaic)
DCSYN Surface synoptic data
DCUPPR Upper air data, mandatory & significant levels
DCWPR6 FSL six-minute wind profiler wind data
DCWPRO FSL hourly summary wind profiler wind data

When you register a schema using the McIDAS-X command SCHE, the file is read and the schema's internal form is copied into the file SCHEMA (the location of SCHEMA should be defined by a file redirection; it should be located in the directory containing ingested McIDAS data files). Command SCHE can also add locally developed schemas to the workstation.

Commands that read data in an MD file (for example, PTDISP, SFCLIST, XSECT) or edit a preexisting MD file (for example, MDE) do not require the MD file's schema type to be registered. However, commands that create an MD file (for example, ISENT or MDU MAKE) do not work unless the schema is registered. Therefore, you should register the supplied schemas using the SCHE command after installing McIDAS-X for the first time.

Once a schema is registered on the workstation, you don't have to register it each time you install a new version of McIDAS-X. When a schema is updated, it is noted in the Release Notes document.

To register the MD file schemas, first complete the software installation procedure. Then start McIDAS-X and use the McIDAS-X command SCHE to register each schema.

For example, to register the schema ISFC,

To register the schemas IRAB and IRSG,

Use the list schema command, LSCHE, to verify the registered schema types and ve rsion numbers or to search the schemas for a specific key.


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