draft of course work moving platform for helsinki testbed
DESCRIPTION
Draft of Course Work Moving Platform for Helsinki Testbed. Fixed HTB site (Orrengrund). Mr. Paavo J. Airaksinen VIMS/HydroMet Vaisala Solutions [email protected]. Example of a moving platform (Virolahti-Helsinki). Ship station for HTB?. unit price accuracy performance. - PowerPoint PPT PresentationTRANSCRIPT
Draft of Course Work
Moving Platform for Helsinki Testbed
Mr. Paavo J. Airaksinen
VIMS/HydroMet
Vaisala Solutions
Fixed HTB site (Orrengrund)
Example of a moving platform
(Virolahti-Helsinki)
©Vaisala | date | Ref. code | Page 2
Ship station for HTB?
1. Could we add frequent data gathering from marine environment?
2. Requirements of mesoscale observing network vs. operational practices.
3. Is WXT510 good enough for marine environment, which is "hostile"? If so, maintenance needs in long run?
4. Limiting the work task, so that ther'll be stuff before Easter/ early April 2007
research &professional meteorology
weather sensitivebusinesses
Weatherenthusiasts
WXT510 focus
unit priceaccuracyperformance
Customer base
I work for this group (HydroMet/ Vaisala Solutions with some 60 other people)
©Vaisala | date | Ref. code | Page 3
Solution some years ago – example MilosS520
m/s Aranda/ FIMR
Example of PC display
©Vaisala | date | Ref. code | Page 4
Solution some years ago - MilosS520 VOS AWS
ORMILOS 500
STATUS
RESET
RESET
STATUS
STATUS
ERROR
FULL
CHARGING
AC ON
MILOS 520Data Collectionand ProcessingSystemwith DPA501Pressure sensorINSIDEEquipmentEnclosure
Wind VaneWAV 151
AnemometerWAA 151
Cross Arm
QMT102TemperatureendHumidity probe INSIDEDTR 13 RadiationShield
BRIGHTNESS
NMEA 0183Compass data
Inmarsat C terminal
Bridge Console
Bridge
WAS425
Ultrasonic anemometer
System Layout/ Small system
DTS12WSoil TemperatureSensor
Replaced by New HydroMet Station
©Vaisala | date | Ref. code | Page 5
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!
©Vaisala | date | Ref. code | Page 6
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.php
©Vaisala | date | Ref. code | Page 7
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 => huge phone with Sonera bill due to roaming costs=> use was limited after first technical tests.
- pack with gps+ electric compass was installated erroneously (vertically and not horizonttaly). Data went crazy.
=> System was not taken into routine HTB use.
- Another compass was pre-tested. Installation crew had busy time => 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.
©Vaisala | date | Ref. code | Page 8
On the Platform vs.
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
Not all year
Not heavy weatherSchedule / Tallink ships
Note: m/s Meloodia is not here!
©Vaisala | date | Ref. code | Page 9
Platform possibility 2: Oppurtunity to learn
Tasks/ Galaxy:
+ Discussions with Vaisala people involved
- Discussion with FIMR people about the FerryBox/ Alg@line
- Discussion with the Tallink people
=> agreement of task
If m/s Galaxy is selected Site Survey is needed: planning of wiring + installation…
©Vaisala | date | Ref. code | Page 10
Site Survey – Not just the Ship
Port of Tallin. Courtesy of Google Earth Plus.
Route Tallinn- Helsinki
Cruise 13.30 16.45
Port of Helsinki 16:45 18:30
Route Helsinki- Tallin
Cruise 18.30 22.00
Port of Tallinn 22:00 13:30
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).
=> Find as representative measurement site as possible. Be prepared to flag some data bad if QC criteria not filled.
Winter Schedule for m/s Galaxy:
©Vaisala | date | Ref. code | Page 11
UV-B - additional measurement (test+campaign)
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 Kipp&Zonen 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.
©Vaisala | date | Ref. code | Page 12
FerryBox/ Alg@line installation at some line ships
Current situation?
• check once per week
• data through disk
©Vaisala | date | Ref. code | Page 13
Limiting Work in this Task, perhaps so:To be added:
+ location/orientation
+ powering, wiring, installation
+ communication to HTB
+ WebCamera: due to QC?
=> 2-3 weeks of work, with testing?
Later, if funding/ HTB Phase II:
+ hourly SHIP reporting (+support to Helideck) with enh. coordinates
+ Alg@line data integration
+ PWD22 pres. weather and visibility
+ CL31 Ceilometer