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McIDAS -XCD Future

McIDAS -XCD Future. 2010 MUG Meeting Jerrold Robaidek. What is McIDAS -XCD?. M cIDAS - XCD. McIDAS X C onventional data D ecoder. McIDAS-XCD files, decodes and indexes the NOAAPORT data stream (or other data streams) into formats that can be served by McIDAS-X ADDE servers.

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McIDAS -XCD Future

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  1. McIDAS-XCD Future 2010 MUG Meeting Jerrold Robaidek

  2. What is McIDAS-XCD? McIDAS-XCD McIDAS X Conventional data Decoder McIDAS-XCD files, decodes and indexes the NOAAPORT data stream (or otherdata streams) into formats that can be served by McIDAS-X ADDE servers. Output formats include McIDAS MD files, text files, McIDAS GRID files, GRIB and GRIB2 files, NEXRAD files, and GINI files.

  3. McIDAS-XCD History • Before 1994, conventional data was decoded on IBM mainframe (Whittaker) • Early 1990s moved to a distributed system. Prototypes developed for McIDAS-OS2 (PC McIDAS) Called McIDAS-OCD (Pyeatt) • 1994 first version on Unix. Required McIDAS-X. Named McIDAS-XCD (Pyeatt) • Data came in on a Central Data Card via the Familyof Services. • NOAAPORT certified operational on November 25, 1998 data broadcast over L-Band ingested by SSEC SDI

  4. NOAAPORT Channels • GOES Channel • GOES East visible, infrared, and water vapor for the Eastern Conterminous United States (CONUS), Puerto Rico, supernational composites, and Northern Hemisphere (NH) composites • GOES West. visible, infrared, water vapor for CONUS, Alaska, and Hawaii; supernational composites, and NH composites. • *NCEP/NWSTG Channel (NWSTelecommunications Gateway) • model output from the National Centers for Environmental Prediction (NCEP) • observations, forecasts, watches and warnings produced by NWS Forecast Offices • WSR-88D radar products • most observational data over North America. • *NCEP/NWSTG2 Channel • supplements the NWSTG channel. • Non-GOES Imagery/DCP Data Channel • GOES DCP data • MTSAT/GOES-West/GOES-East/METEOSAT-7/METOSAT-9 composites for visible, IR, and water vapor products (every 3 hours) • OCONUS grids.

  5. XCD Data Volumes TDWR RADAR products added Model GRIB volume steadily increasing No significant volume increases 2003-2005 Introduction of NEXRAD (operational January 1, 2001) Mostly text, point some Grids 170 MB in 1998 – 300 MB in 2000 NOAAPORT DVB-S begins 10.24 Mb/s (1/2005) NOAAPORT DVB-S2 begins 30 Mb/s (March-April 2011) NOAAPORT Operational 1.6 Mb/s (11/25/1998)

  6. NOAAPORT Data flow into SSEC Currently we get NOAAPORT data in two ways • Directly from DOMSAT via DBS using NOVRA S75 • Over the Internet via LDM

  7. NOAAPORT Data Flow into SSEC Internet

  8. Local NOAAPORT Reception LDM

  9. What McIDAS-XCD does well • Filing and indexing text data • Filing and indexing point/MDXX • Data management for NEXRAD • Can incorporate local data feeds

  10. McIDAS-XCD Criticisms • Installation/upgrades are difficult (many steps, prone to user error) • System is complex, large learning curve for operators, and very large learning curve for new programmer • Performance can be an issue • Data stored in format different than incoming format • Can’t handle BUFR (except for filing)

  11. What’s next for McIDAS-XCD • McIDAS-XCD Survey (sent out immediately following this meeting) • Find out what users like/don’t like • Find out what parts of McIDAS-XCD are used • Solicit input on the future directions • Does McIDAS-XCD need to change? • If yes, how? • Stand alone decoders? • LDM decoders? • ADDE servers? • Other server model? THREDDS? RAMADDA?

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