This report covers various items from the meeting considered of
particular interest to the HMEI Membership and is not intended to be
definitive.
The WMO Final Report of the
meeting is available here.
As a result of this meeting HMEI has been accepted as an
advisor to the Task Team on Instrument Standards, and will be involved
in future work of this Task Team.
Attendees
For the full attendees list
please see the Participants List here
HMEI was represented by:
Rémy Pepin -
MODEM
Bruce Sumner - HMEI Executive Secretary
Christine Charstone - HMEI Administrator
Opening at
9.30
The Deputy Secretary-General Dr. Hong Yan opened
the meeting at 9.30 on behalf of the Secretary General, He stressed the
important or sharing information between oceanographic and
meteorological activities, particularly in the area of climate change.
Technical
Workshop
SOT (Ship Observation Team) consists of
three components – VOS (Voluntary Observing Ship) Scheme consisting of
5000 ships making surface observations, the SOOP (Ship of Opportunity
Programme consisting of 60 ships making 24,000 sub-surface thermal
profiles each year and ASAP (Automated Shipboard Aerological Programme)
consisting of 16 ships performing about 4500 Radiosonde profiles each
year.
Technical Workshop presentations were made to show
new techniques and instrumentation for the collection of shipboard
observations:
- A test of XBT vs CTD profiles has been performed of six instrument systems. Temp
errors are within manufacturer’s specifications (0.1C), therefore no
bias. There is a fall rate error. Two instruments are a little worse
than the other four instruments.
- Summary of the Devil XBT acquisition system developed by CSIRO, teamed
up with Sippican launcher and Sippican probe. 29 Devil systems have been
delivered worldwide. Turo Technology Pty Ltd in Hobart has been licensed
to make the systems (5800 dollars each).
- Mquest is a quality control program to check subsurface profiles,
developed by the CSIRO. It is a multi-platform system to replace an old
1990 program.
- BluLink – an ocean forecasting tactility around Australia, using a
partnership between BoM, CSIRO and Australian Navy. Uses a coupled
ocean-atmosphere model. That goes down to 200m at every 10m.
- TurboWin version 4. This is KNMI software that is an electronic logbook
for shipboard lodgement of data.. Redesign of sea level pressure e.g.
surface or ship level.
NATIONAL REPORTS
General items of interest:
- Manual shipboard weather observations are declining, and to rectify this
many services are starting to install shipboard Automatic Weather
Stations (AWS). Some countries are very advanced, such as Canada, who no
longer accept manual ship observations, and have replaced all their
recruited weather ships with AVOS, an automated systems developed for
Canada by AXYS Technologies. France are trialling shipboard AWS that they
have developed, called BATOS and MILOS. The United Kingdom is trialing
AWS on ships, such as MINOS from Martec, BATOS from Meteo-France and
Automet by UKMet.. The UK also have AWS on offshore platforms, mostly in
the North Sea. These are generally instrumentation from Muir Matherson.
- There was a suggestion from Scripps Institute and AML in Miami to
arrange bulk purchasing of XBT’s. Smaller institutes are disadvantaged
in that they have to pay a lot more for a few XBT’s, whereas Scripps and
AMOL purchase about 12,000 XBT’s per year, mainly from Sippican, and may
be able to assist smaller institutes to be able to more easily purchase
more XBT’s.
- Transference from Inmarsat to Iridium satellite communications is
generally happening in the oceanographic/marine community. This is to
reduce costs. Costs drop from about $15.00 per observation to about
$1.00 per observation. (Reference – all services performing ship, XBT
and other shipboard observations).
- Greenhouse gas sampling from ships consists of approximately weekly
sampling on various routes, such as New Zealand to Japan and New Zealand
to Long Beach California. Samplers are usually located on the ships
bridge. Bridge officers start the sampling, load new sampling flasks and
press start. At the end of the sampling process, reloaded for next
sampling in about 18 hours. New routes are planned, and there is a need
to automate the sampler. (Reference – Atmospheric modelling laboratory,
Boulder, Colorado)
- Private sector meeting held in Paris in March 2006. The results and
actions from this meeting will be implemented shortly. A meeting in
Exeter in 2008 will also involve the public sector.
Report by the SOT
Coordinator
JCOMMOPS webpage has a new section on instrumentation:
http://wo.jcommops.org/cgi-bin/WebObjects/JCOMMOPS
(Reference – Hester Viola, JCOMMOPS, Toulouse)
Report from OOPC
A meeting on oceanographic sensors and new technologies will be held in
2008 near Hamburg, Germany.The meeting is to
identify new instruments and technologies for sub-surface observations.
Instrument manufacturers will be invited through HMEI.
(Reference – Albert Fischer, OOPC, Paris)
Requirements for ship-based observations
This report highlighted that
adequacy requirements need to be set for VOS observations, both for NWP
and for climate purposes. Also need to ensure continuing observations of
sea surface temperature (SST).
(Reference – Liz Kent, UK)
FerryBox as Operational Tool for Ocean Observing
Tasks
FerryBox, built by Jena in Germany,
is installed on ferries to measure flow through parameters, such as
chlorophyll, turbidity, temperature, salinity, etc. Cost is about
$50,000 per unit, depending on the seniors installed. System developed
in Germany, with funding EuroGOOS, and used in northern Europe on
trans-country ferries. However different countries require different
sensors in the instrument, which means the data from different countries
is difficult to compare.
(Reference – Franciscus Colijn, GKSS, Geesthacht, Germany)
Task Team Reports and Recommendations
There are six Task Teams:
-
Task Team on VOS Recruitment
and Programme Promotion
-
Task Team on Satellite
Communication System Costs
-
Task Team on Metadata for
WMO Publication No. 47
-
Task Team on VOSClim
-
Task Team on Coding
-
Task Team on Instrument
Standards
The only Task Team of relevance to HMEI is the Task Team on
Instrument Standards, with a possible interest in Task Team on
Coding. However the coding group mainly is involved in defining BUFR
descriptors if they are not currently available. Instrument
manufacturers should thus be aware that SOT (and JCOMM) is committed
to the use of BUFR as the new code form. HMEI has been accepted as
an advisor to the Task Team on Instrument Standards, and will be
involved in future work of this Task Team.
Reference - Robert Luke, leader
of Task Team on Instrument Standards.
VOS automation and electronic logbook
The first VOS automation report
was in 2003, and stated there was a requirement to increase AWS
installation on ships. There have been a number of fully automated
shipboard AWS on ships from many countries
since then. There are currently 204 VOS ships with AWS installations in
2006, and there is a plan for 42 more installations in 2007. However
there is now a requirement to be able to add visual observations to the
automatic observations from the AWS.
There is also a growing requirement
for electronic logbook software to be integrated into the front-end of
the observation system. Migration should be made to BUFR coding,
collection of metadata enabled and linking to WMO Publication No. 47
(ship catalogue, similar to WMO Vol A Station Catalogue). The VOS Terms
of Reference (ToR) has an item on generic pre-installation standards for
installation of equipment.
(Reference – Julie Fletcher,
JCOMM VOS panel chair)
E-SURFMAR VOS Component
A program to coordinate and
optimize the surface marine observations component of EUCOS (EUMETNET
Composite Observing System). E-SURFMAR participants are operating
different shipboard AWS: France has 50 Batos stations and 8 Minos AWS,
Germany has 20 Minos AWS operating through Meteosat, UK has seven
stations – either Automet, Batos or Minos, Norway has one QLS-50 AWS,
Ireland and Spain have one Milos station each and Denmark has one Batos
AWS. A new simple AWS is under development by Meteo France, called Baros.
Currently in pre-production, with final production expected in about two
years time, when a tender will be issued to potential manufacturers.
(Reference – Pierre Blouch, E-SURFMAR
Programme Manager)
XBT fall Rate Equation
366 profiles with 6 instrument systems were
obtained in the Atlantic in 2006 to investigate the fall rate equation
for XBT’s. Current fall rate equation was developed by IGOSS in 1994.
HMEI recommends a full scientific Intercomparison, over all ocean basins
and with input from all manufacturers of probes (generally Sippican and
TSK), so that the fall rate equation can investigated and a refined fall
rate determined.
(Reference – Derrick Snowden, AOML, Miami, USA)
Automated Shipboard Aerological Programme (ASAP)
18 ships perform automated
Radiosonde observations, mainly in the north Atlantic. Plan for 2007 is
add additional ships to the programme. Also plan to make regional
groupings to minimize costs. 4238 soundings were performed by E-ASAP
(European ASAP group) in 2005. Simpler, safer launching systems should
be developed, especially for launches in cold extreme latitudes. Failure
rates for launches are too high at about 20%. The development of a
simple auto-launcher for ship launches would be a good idea for a
manufacturers to consider. 200g balloon reach 21 km, 350g balloons reach
on average 22 km. However a 350g balloons required 30% more helium.
Decision made that 200g balloons are satisfactory for E-ASAP. There is a
problem with getting a reliable helium supply for the ships.
(Reference – Rudolph Krockauer, E-ASAP Programme
Manager)
JCOMMOPS
^There is a website
http://wo.jcommops.org/cgi-bin/WebObjects/JCOMMOPS with lots of
information on JCOMM activities, including instrumentation, monitoring,
programmes, meetings, contacts, etc.
(Reference – Hester Viola, JCOMM Technical Coordinator)
SUMMARY
The meeting identified the need to:
- Development of a small,
compact, expandable marine AWS, with easy installation and able to
be moved from ship to ship.
- Development of a simple
auto-launcher for automated launches of helium-based Radiosonde
releases from ships.
- Development of a simplified
hand launcher and multiple launcher for XBT probes from ships.
- Investigation of the fall
rate equation of XBT instruments from different manufacturers.
- Update of manufacturers'
information on JCOMMOPS website.
HMEI was accepted as a member of the Task Team on Instrument Standards and the new ASAP Task Team.
Closing of the conference
The
conference closed on Saturday 21st April 2007