SOT-4 – Geneva – 16-21 April 2007 Pierre Blouch E-SURFMAR Programme Manager.

SOT-4 – Geneva – 16-21 April 2007

Pierre BlouchE-SURFMAR Programme Manager

Introduction

VOS-TAG4 – Geneva – 12-13 April 2007

E-SURFMAR

Surface Marine Observation Programme EUMETNET

E-SURFMAR is an optional programme of the ground based EUMETNET Composite Observing System (EUCOS)

EUMETNET is the Conference of European National Meteorological Services (21 members in Jan. 2007)

16 countries are participating in E-SURFMAR: Belgium, Cyprus, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden and United Kingdom

E-SURFMAR includes Voluntary Observing Ships (VOS) and Data Buoys activities

E-SURFMAR represents ~45% of the "active" VOS in the World but 54% of the VOS observations (Sea Level Pressure)


Objectives and funding

Present main objectives

E-SURFMAR: to co-ordinate, optimise and progressively integrate the surface marine observation activities within the operational EUCOS framework

EUCOS: to optimise the ground observing system to improve short range forecasts over Europe (NWP)

Although the improving of short range forecasts over Europe is the main objective,VOS observations carried out by EUMETNET VOS outside the North Atlantic

and its adjacent seas are also supported by the E-SURFMAR Programme(e.g. as a contribution to the WWW)


Funding E-SURFMAR: is funded through contributions from participants The share is based on the respective GNI of each participating country

VOS Technical Advisory Group (1)

Established in 2003

4th meeting last week : Geneva, 12-13 April 2007

Chair: Sara North (UK Met Office)

Vice-Chair: Volker Weidner (DWD)


VOS Technical Advisory Group (2)


Terms of Reference (extracts)

Develop strategies to optimise the receipt of observations from VOS

Develop strategies to optimise and co-ordinate the ship recruitment and inspection regimes

Evaluate and develop future strategies for the use of automatic observing systems and electronic coding software

Investigate the possibility of establishing a more equitable means of distributing transmission costs

Discuss and agree on financial arrangements to enable equitable funding

Optimise method of collection of metadata in accordance with WMO document n°47

Liase closely with JCOMM activities

Data Availability


Network Overview


Surface MarineObservations inthe EUCOS area

Feb. 2007

Automated VOSNumber of ships operating in the EUCOS area

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EUMETNET

Manned VOSNumber of ships operating in the EUCOS area

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EUMETNET

VOS Ships

Conventional VOS Automated VOS (AWS)

E-SURFMAR E-SURFMAR

Number of active shipsinto the EUCOS area


In 2006, EUMETENET VOS represented 48% of the world fleet (55% of the shipborne AWS)

EUMETNET manned VOS - Data availability in the EUCOS areaAverage number of observations per day

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EUMETNET automated VOS - Data availability in the EUCOS areaAverage number of observations per day

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VOS Observations


E-SURFMAR E-SURFMAR

Data AvailabilityAverage number of daily reports

from the EUCOS area


In 2006, EUMETENET ships data represented 55% of the whole GTS reports (76% into the EUCOS area of interest)

Automation


AWS in operation


CMRAutoMet

SerpeMINOS

AxysAVOS

M-FBATOS

VaisalaMILOS

M-FMini-

BATOSOthers Total

Denmark 1 1

France 7 47 2 56

Germany 17 3 20

Ireland 1 1

Norway 3 3

Spain 1 1

UK 1 5 1 1 8

EUCOS 4 4

Total 1 12 1 53 19 2 6 94

Developments


New basic AWS

Baros station (under development)

New simple AWS almost ready to be tested aboard a ship Based on a barometer, a GPS and an Iridium SBD transmitter Autonomous and easy to install


External look - a 0.40 x 0.40 x 0.40 box - with 4 solar panels and - topped with a barometer port (air intake)

Pre-production should be allocated toE-ASAP ships not yet equipped with AWS(put on the roof of the container)

Ship Masking Scheme

E-SURFMAR supports the MASK method which consists in replacing ITU call signs by unique identifiers for GTS purposes

E-SURFMAR supports the idea of using a more secured method (ENCODE) when BUFR is fully operational

A trial is performed further to Resolution 3.4.4/2 (WMO EC-58)

A normalized format (TTTCCnn) is used to mask the call signs

True (ITU) call signs are given in Pub No47.

Suggestion: a repository of the cross-reference list of ship masks vs IMO Ids at JCOMMOPS (available through a restricted access)

Presently tested on Danish, French and UK ship borne AWS (48 units)

Also tested on manned ships reporting half compressed data (6 units)

Makes VOS management easier (e.g. for monitoring, for compensations…)


Metadata Database (1)


E-SURFMAR Management Team needs the most recent metadata To monitor the EUMETNET VOS data on a day-to-day basis To evaluate the performances of the VOS network To provide WMO with consolidated metadata To compute compensations for observations and communications…

Present situation National databases (or files) exist WMO Pub 47 is not often updated although it is probably the lone available on the Web

Constraints Exchange of XML files (since 1st July 2007) Expensiveness of the DWD database

Metadata Database (2)


The development of a metadata database is planned. Characteristics:

Simple: management of the Pub 47 metadata only + a few additional parameters if necessary

Available on the Web to VOS operators (in reading and writing)

Based on open source softwares (e.g. MySQL and PHP)

Able to manage XML files: import/export from/to other databases (national and WMO)

Developped through the present E-SURFMAR Management Budget (no extra fund required)

Used later to build FM96 BUFR reports from the raw VOS data (half compressed Inmarsat reports, Inmarsat Data Reports, Iridium…)

Communications


Communications for conventional VOS

Half Compression Technique

Implemented on TurboWin v4 by KNMI

Data processing developed and operating at Météo-France

Communications are 60% cheaper than through SAC 41 (0.40 €/report)

Six ships (two Dutch and 4 French) are participating in a successful trial

Deployments onboard ships may continue now

Deployment of the processing software to other NMSs than Météo-France should be possible soon


Communications for AWS


Full data compression

Full data compression and use of Inmarsat-C Data Reporting => 0.15 €/report (0.17 €/report) - 34 BATOS operating

Full data compression and use of Iridium SBD => 0.07 €/report (0.08 €/report) - 2 BAROS under development

Geostationnary Met. Satellites

DCP (Geostationnary Meteorological Satellites) => 0.00 €/report (0.07 €/report) - 18 MILOS operating

Cost figures include monthly fees if applicableFigures in brackets include an amortization of the transmitter over 10 years

Compensations


Compensations for observations


Compensations for communications


Data Quality and Data Monitoring


Automated EUMETNET VOS - Data quality in the EUCOS areaRMS of differences with the French model outputs

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Manned EUMETNET VOS - Data quality in the EUCOS areaRMS of differences with the French model outputs

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Quality of SLP measurements


Data QualityRMS of differences between

observations and model outputs


Quality of SLP reported by conventional VOS is still worse than this from shipborne AWS but improvements are expected

Blacklist of dubious ships data


E-SURFMAR VOS Monitoring


Conclusion


E-SURFMAR benefits

Increased level of co-operation between participating EUMETNET Members

leading to…

Reduced duplication of effort and optimisation of resources

resulting in…

A more efficient and cost effective European VOS network, that meets EUCOS requirements


http://www.eucos.net/

http://www.eucos.net/

Questions ?


SOT-4 – Geneva – 16-21 April 2007 Pierre Blouch E-SURFMAR Programme Manager.

Documents

Transcript of SOT-4 – Geneva – 16-21 April 2007 Pierre Blouch E-SURFMAR Programme Manager.