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
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