Transcript Drafting ideas for Course Work: Movable weather station(s

Draft of Course Work
Moving Platform
for Helsinki
Testbed
Mr. Paavo J. Airaksinen
Fixed HTB site (Orrengrund)
VIMS/HydroMet
Vaisala Solutions
[email protected]
Example of a moving platform
(Virolahti-Helsinki)
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
unit price
accuracy
performance
research &
professional meteorology
WXT510
focus
Customer base
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weather sensitive
businesses
Weather
enthusiasts
I work for this group
(HydroMet/ Vaisala Solutions
with some 60 other people)
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
MILOS 520
STATUS
STATUS
RESET
MILOS 500
STATUS
RESET
ERROR
FULL
CHARGING
AC ON
Data Collection
and Processing
System
with
DPA501
Pressure sensor
INSIDE
Equipment
Enclosure
OR
Wind Vane
WAV 151
Anemometer
WAA 151
QMT102
Temperature
end
Humidity probe
INSIDE
WAS425
Ultrasonic
anemometer
Cross Arm
DTR 13
Radiation
Shield
Inmarsat C
terminal
DTS12W
Soil
Temperature
Sensor
Bridge
NMEA 0183
Compass data
Bridge Console
BRIGHTNESS
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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.php
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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 => 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!
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m/s Meloodia was build 1979, is
139 m long and 24 m wide. It has
a cruising speed of 20 knots.
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@line
- Discussion with the Tallink
people
=> 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
Route
Tallinn-
Helsinki
- who is paying (their needs)
Cruise
13.30
16.45
- who are the operational data users
(their needs),
Port of Helsinki
16:45
18:30
Route
Helsinki-
Tallin
- the international recommendations
like WMO, IOC and IMO
Cruise
18.30
22.00
Port of Tallinn
22:00
13:30
- 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.
Port of Tallin.
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Courtesy of Google Earth Plus.
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.
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FerryBox/ Alg@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?
=> 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
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