# Presentation: 247958

## An Overview of the NWS Telecommunication Gateway

**NOAA GOES DCS LATIN AMERICAN****USER’S CONFERENCE**

**Richard  A. Robinson Data Manager**

## National Weather Service Telecommunication Operations Center (TOC)

- Overview
- System
- Data Exchange

## National Weather Service Telecommunication Gateway

**Serves the U.S. Public, Government Agencies ,**
**International Community and the Commercial**
**Meteorological Industry**

## National Weather Service Telecommunication Gateway

**The Primary Data Communications Switching Facility of the NWS**
**Operated 24 X 7 by the Telecommunication Operations Center **
**TOC is Aggressively Planning an Backup Facility**

## NWSTG Facilities

- 9600 square feet (890 meters) of floor space
- Raised floor (grounded grid system)
- Uninterruptible power system (UPS)
- Isolating power distribution Units (PDU)
- Diesel generator
- Independent HVAC system
- Site Scan facility monitoring system

## Major Components of NWSTG

**NWSTG**

**   ****NCF / AWIPS**

**       ****NCEP**
**   ****Camp Spring**

**     ****DOD / FAA**

**   ****NESDIS**

## Observations

-  • Over 400,000 Observations Distributed Daily
-  • 152,000 Surface Observations
-  • 3,100 Upper Air Observations
-  • 4,700 Ship Reports
-  • 15,000 Aircraft Reports
-  • 48,000 DCP Reports
-  • 200,000 Satellite Reports
-  • Observations from 33,000 Places

## NWSTG Resources

**Processors - 6 systems**
**Disk storage - over 400 gigabytes**
**Communication controllers - over 10 units**
**File servers - 2 systems**
**Web servers - 2 systems**
**Communication lines - over 140**
**LANS & Routers - 10 networks, 6 units**

**Components**

## NWSTG Server Systems Interactive Dissemination 

- 2 FTP Servers
- Andrew File System (AFS) Clients
- 3 WEB Data Servers
- FTP and HTTP
- 1 HTTP Web Page Servers

## National Weather Service Communications Identifier

**A Heading for the Future!!!**
**1997 - NWS Communications ID Policy Working Group develops an implementation plan**
**Road map developed**
**Full WMO compliancy**
**Over 26,000 WMO headings added to NWSTG Switching Directory**
**To date approximately 78,000 changes have been made to the NWSTG Switching Directory**
**Approximately 80 percent fully compliant**

## Communications Identifiers

## DCP Data Flow

**SBN Uplink**

**SBN Downlink**

**HADS 1**

**HADS 2**
**FTP  to RFC**

**CADAS**

**NCF**

**NWSTG**

**Wallops Island/DAPS**

**AWIPS**

**DCP**

**9.6 Kbs line with Dial Backup**

**Notes:**
Received at the NWSTG, sent to HADS and other user of data.

## DCP Formatting

- SXFR40 KWAL 031705
- &333084DC 337170504
- AAXX 03174
- 91925 36/// /1014 10286 20219 30069 40128 51009=
-     34+0NN  84W!
- The general format of the WMO abbreviated heading is:
**TTAAii CCCC YYGGgg**; where,TT is the data type,AA is a country or geographical area code,ii defines the content list,CCCC is the identification of the country generating the bulletin. *RTH Washington is ****KWBC***YYGGgg is the day, hour, and minute of the month.

## Your Data and Products

**Current location of Wallops Data:**
- _[ftp://140.90.88.142/](ftp://140.90.88.142/)_
-   WAL051.SRVR     14 Kb    Fri Dec 07 00:00:00 2001
-   WAL052.SRVR     17 Kb    Fri Dec 07 00:01:00 2001
-   WAL053.SRVR     34 Kb    Fri Dec 07 00:02:00 2001
-   WAL054.SRVR     18 Kb    Fri Dec 07 00:04:00 2001
-   WAL055.SRVR     23 Kb    Fri Dec 07 00:05:00 2001
-   WAL056.SRVR     32 Kb    Fri Dec 07 00:06:00 2001
- 	Migration of Wallops data on servers TGFTP and PTGFTP
- Data Management Home Page: http://www.nws.noaa.gov/datamgmt/index.html
- Change Notices Page:  http://www.nws.noaa.gov/datamgmt/notices.shtml

## Your Data and Product Advocates

- Fred Branski - Team Leader, Data Management
- Fred.Branski@noaa.gov             (301) 713-0864 ext 146
- Walter Smith - Senior Data Manager
- Walter.Smith@noaa.gov             (301) 713-0864 ext 139
- Richard Robinson - Data Manager
- Richard.Robinson@noaa.gov    (301) 713-0864 ext 179
- Julie Hayes - Family of Services Manager
- Julie.Hayes@noaa.gov               (301) 713-0864 ext 120
- KWBC Communications Control Center (CCC) - Tech Control
- Point of contact 24 hours every day
- Phone:    (301) 713-0902
- Fax:        (301) 587-1773