GOES Data Collection System (DCS) in the GOES R Era

William E. BrockmanShort & Associates, Inc.

What is GOES DCS

Data Relay System Used for Transmission from Ground-Based Sensors through Satellite to Receiving Station.

Carried on board NOAA Geostationary satellites since 1970’s.

Current Performance

• Number of Platforms - 20,000

• Observation Period – 6 hours

• Message Size – 200 bytes

• Data Throughput – 100/300/1200 selectable

Current Users

• Domestic and international government agency users exclusively. Principal users are:– NOAA line Offices– U.S. Geologic Survey– Army Corps of Engineers– USDA Forestry Service– National, State, and Canadian Fire Agencies– Bureau of Land Management– National, State, and local water resource agencies– International Hydromet Services

Requirements Process

• Surveyed current and potential users requesting statements of requirements for GOES R era

• Organized requirements into spreadsheet and database

• Validated of requirements by interview and formal review process

Requirement Parameters

• DCP Type• DCP Owner• DCP User & Priority • Level• Geographic Coverage • Number of Platforms• Transmissions/platform

• Message Size• Data Throughput Rate• Data Latency• Accuracy

(Transmission Timing)• Accuracy (error rate)• Notes• Source

Observation Categories

• In the Water

• On the Surface of the Water

• On Land

• In the Atmosphere

• Other Services

Observing in the Water

• Fish Counting Platforms

• Stream/River Gauges

• Water Quality Monitors

Observing on the Water

• CMAN Stations: self-timed

• Drifting Buoys • Dynamics of Earth and

Ocean Project (DEOP) • Flood Gauges

(Stream/River Gauges)

• Moored Buoys: interrogate

• Moored Buoys: self-timed

• Shipboard Wx Obs Platforms

• Tide Gauges• Tsunami Warning

Stations• Tsunami Warning

Stations (moored buoys)

Observing on Land

• Fire Monitoring Stations

• International Climate Reference Network

• Rain Gauges

• Seismic Monitors

• U.S. Climate Reference Network

• Volcano Monitors

• Weather Observing Platforms

Atmosphere Observing

• Aircraft RADAR

• Aircraft Observations

• Air Quality Monitors

• GPS Met

• Rawinsonde

Other Services

• In support of NOAA Ships– E-mail– Internet / Intranet– NAV / Safety / Security– Quality of Life / Entertainment

• In support of Marine Sanctuaries– Telepresence

Numbers of Platforms

Categories Threshold Objective

Under Water 16,200 30,400

On Surface of the Water 20,100 39,500

On Land 50,100 79,500

In the Atmosphere 2,600 8,500

Other Services <100 <100

Total 89,000 158,000

Typical Performance Requirements

• Threshold– Message Size

• =>200B 72%

• =>300B 21%

– Transmission Frequency

• 15min 67%

• 60min 30%

– Data Throughput Rate• 100/300/1200b 96%

• Objective– Message Size

• =>1000B 31%

• =>2000B 64%

– Transmission Frequency

• 5min 38%

• 15min 58%

– Data Throughput Rate• 100/300/1200b – 51%

• 9600b – 47%