Draft of Course Work Moving Platform for Helsinki Testbed

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Draft of Course WorkMoving Platform for Helsinki
Testbed
Fixed HTB site (Orrengrund)

• Mr. Paavo J. Airaksinen
• VIMS/HydroMet
• Vaisala Solutions
• paavo.airaksinen_at_vaisala.com

Example of a moving platform (Virolahti-Helsinki)
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Ship station for HTB?

• Could we add frequent data gathering from marine
  environment?
• Requirements of mesoscale observing network vs.
  operational practices.
• Is WXT510 good enough for marine environment,
  which is "hostile"? If so, maintenance needs in
  long run?
• Limiting the work task, so that ther'll be stuff
  before Easter/ early April 2007

I work for this group (HydroMet/ Vaisala
Solutions with some 60 other people)
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Solution some years ago example MilosS520
m/s Aranda/ FIMR
Example of PC display
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Solution some years ago - MilosS520 VOS AWS
System Layout/ Small system
Replaced by New HydroMet Station
OR
DTS12W Soil Temperature Sensor
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Issues to be dealed with

1. Selection of observing platform
2. Some words of ship observations
3. Met observations WXT510 vs. WMO recommendations
   (marine obs)
4. Additional observations
5. Location and orientation
6. Reporting contents and formats
7. Communications Data gathering (HTB and
   GTS/WMO?)
8. Powering, data storing
9. Validation and QC
10. Summarizing - Course work plan
11. Documentation
12. Reseach with the data comparisons with land
    data anybody?
13. Comments, Suggestions!

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Discussion of the Platform

• Platform vs. different conditions
• is the platform operating also in near gale,
  gale and storm situations,
• these are typically interesting to many data
  users - but not for all.

Near gale
(Violent) storm, courtesy of NOAA photo
available via www.wrh.noaa.gov/pqr/info/beaufort.p
hp
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Case of m/s Meloodia Possibility 1

• m/s Meloodia / Tallink (1979, renovated 1998)
• In the early HTB phase, system with two
  WXT510, location equipment, data logger and GPRS
  was installed.
• GPRS data collection ship mostly on Estonian
  waters gt huge phone with Sonera bill due to
  roaming costsgt use was limited after first
  technical tests.
• pack with gps electric compass was installated
  erroneously (vertically and not horizonttaly).
  Data went crazy.
• gt System was not taken into routine HTB use.
• Another compass was pre-tested. Installation
  crew had busy time gt Instruments are still
  waiting
• System is not used currently in HTB!

m/s Meloodia was build 1979, is 139 m long and 24
m wide. It has a cruising speed of 20 knots.
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On the Platform vs.
Not all year Not heavy weather
Schedule / Tallink ships
 Schedule Helsinki- Tallinna
Superfast 08.30 11.00
Vana Tallinn 10.00 13.45
Galaxy 18.30 22.00
Vana Tallinn 20.15 23.30
  Tallinna- Helsinki
Galaxy 13.30 16.45
Vana Tallinn 16.00 19.15
Superfast 16.30 19.00
Vana Tallinn 23.55 08.30
Note m/s Meloodia is not here!
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Platform possibility 2 Oppurtunity to learn

• Tasks/ Galaxy
• Discussions with Vaisala people involved
• - Discussion with FIMR people about the FerryBox/
  Alg_at_line
• Discussion with the Tallink people
• gt agreement of task
• If m/s Galaxy is selected Site Survey is needed
  planning of wiring installation

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Site Survey Not just the Ship
Winter Schedule for m/s Galaxy

• Take into account/ Find balance
• - who is paying (their needs)
• - who are the operational data users (their
  needs),
• the international recommendations like WMO, IOC
  and IMO
• - Ship structure (see later).
• - Ship location, route, operational practices and
  objects around (schedule).
• gt Find as representative measurement site as
  possible. Be prepared to flag some data bad if QC
  criteria not filled.

Route Tallinn- Helsinki
Cruise 13.30 16.45
Port of Helsinki 1645 1830
Route Helsinki- Tallin
Cruise 18.30 22.00
Port of Tallinn 2200 1330
Port of Tallin. Courtesy of Google Earth Plus.
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UV-B - additional measurement (testcampaign)

• Sunshine
• Pros cosmetic, psychological, vitaminD.
• - Cons Skin cancer, reduced immunlogical
  status, skin ageing, erythema, keratitis,
  cataract.
• Motivation
• - Very limited if any measurements on UV-B
  irradiation on passager ships (marine)
  environment.
• - Need of special maintenance instructions in
  ship environment?
• Sensor
• - model UVS-E-T by KippZonen has been selected
• - spectral response adapted to the erythemal
  (sunburn) action spectrum of the human skin.
• - produces information of medical and public
  concern UV Index, UV Erythemal dose and dose
  rate.
• - Data can be related to existing monitoring
  network data.

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FerryBox/ Alg_at_line installation at some line ships

• Current situation?
• check once per week
• data through disk

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Limiting Work in this Task, perhaps so

• To be added
• location/orientation
• powering, wiring, installation
• communication to HTB
• WebCamera due to QC?
• gt 2-3 weeks of work, with testing?

Later, if funding/ HTB Phase II hourly SHIP
reporting (support to Helideck) with enh.
coordinates Alg_at_line data integration PWD22
pres. weather and visibility CL31 Ceilometer