Proposal to upgrade infrastructure and radars and stream data

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					    Proposal to upgrade
 infrastructure and radars
 and stream data through
 UNIDATA back to NCAR.

R. T Bruintjes, M. Moncrieff, A Laing and others

                 Africa meeting
                   July 2006
Africa Programs
Burkina Faso infrastructure

  Radar installation on top of control tower and King Air B-200 and hangar
                   facilities at the airport in Ouagadougou
Weather radar and project
        Radar locations

  Burkina Faso and Mali radar locations.
     Local weather services and universities
                     Recent Work
•   Unstable and unreliable internet and local area network at the
    Programme SAAGA offices in Ouagadougou. The network and
    internet connections went down several times during the day and once
    for a period of 24 hours. The problems were associated with wiring
    problems, router and firewall problems and not necessarily with the
    internet connection as such. The network and internet connections in
    Bobo Dialloso were found to be highly reliable and working fine. The
    problems in Ouagadougou could also be associated with frequent
    power outages at the Programme SAAGA office during my one-week
•   Unstable power supply and frequent power outages at the
    Programme SAAGA offices in Ouagadougou. Although a standby
    generator is available for power supply when normal electrical power
    outages occur it always took 30 seconds to a minute to change from
    normal to standby power. The UPS units that supply power to the radar
    and TITAN/CIDD computers during this transition are small and on
    days when several of these power outages occurred the UPS batteries
    were drained and were not able to continue to provide power to the
    computers and equipment. This resulted in systems losing power and
    rebooting after power was reinstated. This also resulted in loss of data.
              Recent Work (cont.)
•   Incomplete installation of Bobo Dialloso radar. Unfortunately, the
    EEC radar engineer conducting the installation of the new radar in
    Bobo Dialloso got sick and had to return to the U.S. before the
    installation of the radar was complete. We were thus not able to feed
    data from the new radar to the TITAN/CIDD computer in Bobo Dialloso
    and to Ouagadougou. We should be able to test this remotely from the
    U.S. when the installation is complete.
•   Problems with the radar in Ouagadougou. The radar in
    Ouagadougou is not well calibrated and maintained. The reflectivity
    levels on the EDGE and therefore on TITAN/CIDD are underestimating
    reflectivity levels by somewhere between 10 to 20dBz according to our
    observations. In addition, no Doppler velocity data is received. A full
    calibration and evaluation of the radar is needed. It is essential that the
    radars are well maintained and calibrated in the future if they will be
    used for guiding operations and in the evaluation of the Programme
    cloud seeding experiments. The same applies for the new radar in
    Bobo Dialloso. Accurate time synchronization between the radars and
    all associated computers are also essential.
            Proposed changes
•   Re-design and upgrade network and internet infrastructure at
    Programme SAAGA offices in Ouagadougou. We would suggest
    obtaining the services of a qualified expert to assess and evaluate
    the current and future network and internet requirements of the
    Programme SAAGA offices in Ouagadougou and to re-design the
    network. I would suggest that the buildings are also re-wired
    because many of the current network connectors and some of the
    equipment are unreliable.
•   Upgrade UPS units and electrical power infrastructure at the
    Programme SAAGA offices in Ouagadougou. In the short-term it
    is important to upgrade the UPS power units to able to provide
    sufficient power to the computers during frequent power failures. In
    the long-term we would suggest that the infrastructure be upgraded
    to provide a more reliable and stable electrical power environment
    for the Programme SAAGA offices in Ouagadougou.
•   Maintenance and calibration of radars and computer equipment.
    It is essential that the radars are well calibrated and maintained to
    support the operations of Programme SAAGA. The current
    Ouagadougou radar is not well calibrated and seems to have
    problems with the Doppler velocities. It is recommended that a plan
    is developed for the maintenance and calibration of the radars and
    computers. This is extremely important for the operations of
    Programme SAAGA.
      Africa Initiative Proposal
• Finalize implementation of radars and
  software (Current funding)
• Provide expert in networking to evaluate and
  help design reliable network (New funding,
  travel and support, 1 month)
• Network Mali and Burkina Faso radars and
  potentially MIT Niger radar (new funding,
  software engineer, 1month)
• Stream data to UNIDATA (new funding, 1
  month per year software engineer, UNIDATA)
       Proposal Activities (cont.)

• Burkina Faso has recently purchased two EEC C-band
  radars. As part of a sub-contract with EEC, NCAR is
  already working with Burkina Faso to provide upgraded
  software for one of the radars.
• Propose to upgrade the two C-band weather radars by
  providing a new receiver with Doppler capability including
  analysis software (1 month radar engineer, 1 month
  software engineer, hardware (~50k).
• Education and training (3 people from Burkina Faso and
  Mali will visit NCAR for training, current funding; GLOBE,
• Workshop in Fall or early winter in West Africa (Sahel other
  west African countries using existing networks).
Water resources, Severe weather, agriculture, air quality, health

 • Water resource management
 • Air Quality and health impacts
 • Flash and local flooding and human impacts
 • Seasonal (agriculture)
 • Infrastructure building
 • Low-tech approach
 • Education
 • Africa Initiative
 • UCAR capabilities