GOES Data Collection System (DCS) in the GOES R Era William E. Brockman Short & 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 – –Internet / Intranet –NAV / Safety / Security –Quality of Life / Entertainment In support of Marine Sanctuaries –Telepresence

Numbers of Platforms CategoriesThresholdObjective Under Water16,20030,400 On Surface of the Water20,10039,500 On Land50,10079,500 In the Atmosphere2,6008,500 Other Services<100 Total89,000158,000

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%