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2003/04/07 DM 04-03.01 - NOAAPORT EVOLUTION NOXX10KWBC 012246 DATA MGT MESSAGE 04-03.01 TO AWIPS/NOAAPORT USERS.. FAMILY OF SERVICES/FOS/SUBSCRIBERS... EMERGENCY MANAGERS WEATHER INFORMATION NETWORK /EMWIN/ NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS... WAFS USERS... GTS USERS... NWS FAX CHART USERS FROM RTH WASHINGTON DATA MANAGEMENT SUBJECT NOAAPORT EVOLUTION Background In order to enhance NWS operations, new sciences are being developed in the areas of atmospheric modeling, satellite imagery, radar processing, and interactive collaborative forecasting. The NWS currently uses a satellite broadcasting network (NOAAPort) using T1 circuit technology to fill the demand for delivering this data, at the existing science level, to the field. It is expected that the demand for the new sciences in the field could increase the broadcast communications requirements by more than 20 times by 2010. The current method for delivering this data to the field uses past industry standards that have become obsolete, and is inadequate for filling these future demands. An investigative study has determined that the current NOAAPort T1 circuit technology needs to be replaced with an open standard, open source, scalable design, specifically Digital Video Broadcast- Satellite (DVB-S). After the deployment of DVB-S, the NOAAPort network may be easily upscaled to meet the demand when new science data becomes available and delivery to the field is required. Approach The transition from the current T1 technology to the new DVB-S technology will be accomplished in phases: Phase 1: Provide a technical report to NOAAPort users that describes the open source (zlib) compression algorithm and a method on how to decompress zlib compressed data. zlib is already used to compress NEXRAD radar data over NOAAPort. In conjunction with the technical report, sample zlib compressed products will be transmitted over both GOES East and West for NOAAPort users to test with. Phase 2: Compress all products on both GOES East and GOES West using and open source (zlib) compression algorithm. Phase 3: Combine both GOES East and GOES West data feeds on both GOES East and GOES West channels. Phase 4: Cease transmission of GOES data on either the former GOES East or former GOES West channel (specific channel to be determined at a later date). Phase 5: Use the satellite space from the vacated GOES channel to test the DVB-S technology over the NOAAPort link. Phase 6: Begin operational use of DVB-S technology over the vacated GOES channel, and begin compressing the NWSTG channel. Phase 7: Migrate the NWSTG and OCONUS (Non-GOES Imagery/DCP « T1 channel) channels onto a single DVB-S channel. Phase 8: Scale the DVB-S NOAAPort channel to handle the demands of new sciences. Tentative Schedule (Based on successful completion of each earlier phase). Phase 1 4/7/03 Phase 2 8/4/03 Phase 3 8/25/03 Phase 4 9/1/03 Phase 5 9/2/03 Phase 6 9/2/04 Phase 7 1/2/05 Phase 8 9/1/05 IF YOU HAVE ANY QUESTIONS REGARDING THIS NOTICE... PLEASE CONTACT PHIL CRAGG E-MAIL: Phil.Cragg@xxxxxxxx PHONE NUMBER: (301) 713-1570 x134 THIS INFORMATION IS ALSO POSTED ON THE NWS DATA MANAGEMENT NOTICES WEB PAGE. THE URL IS LISTED BELOW. http://www.nws.noaa.gov/datamgmt/notices.shtml DATA MANAGEMENT TELECOMMUNICATION OPERATIONS CENTER RTH WASHINGTON SENDS ---------- End Forwarded Message ----------
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