Installation and Setting Up of GLOSS OTT Radar Tide Gauges with DCP Telemetry for ODINAFRICA and Future Developments

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Installation and Setting Up of GLOSS OTT Radar
Tide Gauges with DCP Telemetry for ODINAFRICAand
Future Developments

• Peter Foden and Jeff Pugh
• UNESCO/IOC Oostende 2006

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ODINAFRICA - Ocean Data and Information for
Africa Current, In Progress and Proposed GLOSS
Tide Gauges
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OTT Tide Gauge Kit of Parts
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Main Sea Level Sensors Radar and Pressure
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ODINAFRICA - Meteosat DCP Tide Gauge
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• The Component Parts of the OTT Gauge

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OTT Logosens2 Data Logger
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OTT DCP/HDR Transmitter - Connections
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OTT Power Supply PCU 12
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Kalesto Radar Sensor Connections
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Pressure Sensor - Cable Connections
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Radar Sensor Support Arm Designs
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Simplified Radar Support Arm Design
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Pressure Sensor mounting support bracket example
- Needed to keep the Sensors in a stable and
repeatable datum positions
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• The Proposed Tide Gauge Sites

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Proposed OTT TG site Karachi, Pakistan
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Proposed TG site Nouakchott, Mauritania
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Tide Gauge Hut, Takoradi,Ghana Proposed
sitefor OTT Radar Gauge
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Proposed OTT TG site Port Sonara, Limbe,
Cameroon
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Proposed new OTT TG Site Pointe Noire, Congo
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Summary of TG Site requirements

• A weather proof tide gauge hut for electronics
• 24 hour security
• Electricity and if possible Telephone
• Tools for installation (I have a list)
• A mounting arm for the radar gauge
• Mountings for the pressure sensors (one below low
  tide and one at approximately MSL)
• A pole for antennas
• A simple stilling well for calibration checks
• Regular Dipper and Tide Staff Measurements

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Staff Gauges and Dippers Regular Checks
Available in 1 metre lengths that can be
joined Plastic or metal, graduated in centimetres
Dipper gives audio and visual indication of
height from a reference point to Sea Level
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• Antenna Alignment and Data Checking

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Antenna Pointing Utility Eumetsat Website
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DCP Data Checking and Download Eumetsat Webpage
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ODINAFRICA Telemetry issues

• Meteosat DCP is low cost and conforms to
  standards of Pacific TWS. Automatic data flow to
  GTS.
• Limited bandwidth, cannot report faster than
  every 15 minutes. The new minimum recommended
  data reporting rate is every 6 minutes.
• Alternative to DCP is required for
• tsunami monitoring and faster data delivery
  BGAN Broadband and SMS

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BGAN Terminals
True Global Wi-Fi Data rate up to 492 kb/s Data
messages by SMS or Internet
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Liverpool BGAN Tide Gauge
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BGAN Pricing Standard Economy Rate

• BGAN Terminal 2800
• Activation charge 35
• Monthly subscription 49
• IP Data rate/Mb 8.23
• Static IP/Month 30
• SMS per Message 0.57
• 5 Mb/Month of data 120.15

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Summary

• For the first time high speed, low-cost real-time
  data telemetry from remote areas is possible
  using BGAN, addressing the poor latency issues of
  earlier telemetry systems
• Number of technical issues for BGAN
• Long term reliability, Up time, Latency of SMS
  messages and interfacing to the GTS
• Adoption of broadband will have implications for
  IT infrastructures. In particular the high
  volume of data produced, how to store it and keep
  it secure

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Possible Tsunami Monitoring System using
BGANData Telemetry and SMS
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ODINAFRICA Ocean Data and Information for Africa
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New development - BGAN

• True global Wi-Fi
• Data rate of up to 492 kb/s
• Suitable for Tsunami monitoring
• Portable and will work outside UK