julie fletcher manager marine observations, nz chair, vos panel pmo-iii, 23-24 march 2006, hamburg,...

Julie FletcherManager Marine Observations, NZChair, VOS Panel

PMO-III, 23-24 March 2006,

Hamburg, Germany.

Ship Inspections

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PMO-III, 23-24 March 2006, Hamburg.

Making the best inspections Improving inspections of Foreign VOS Differences in National Practices Generic Foreign VOS Inspection Form

Ship Inspections - Outline

Aim: To get all PMOs conversant with the available VOS

Monitoring Tools and differing national practices so they

can carry out the most effective Inspection Visits

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Making the Best Inspections

Being prepared is the key to making a good inspection• Identify the ship?• Is it reporting?• Use monitoring tools to check Ob quality• Date of last inspection, problems since?

Having knowledge of ship to be inspected• National VOS• Foreign VOS

To visit a ship unprepared means the opportunity to provide feedback on Obs and improve reporting practices is lost

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PMO-III, 23-24 March 2006, Hamburg.P

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Ship Name DISCOVERER Callsign V2EU Date 14/2/06

Last visit 15/12/05 Capt Onin C/O Alexandre 3/O Mario

Last Baro cal 15/12/05 0.3L at 1013.0hPa

Obs record 47 in Dec 26 in J an

Quality StatsAP AT WS WD RH SST

J an -0.2 -0.7 -2.1 -12.7 0.2 0.6Dec -0.3 0.7 0.1 2.4 -1.8 0.3Nov -0.2 1.1 1.4 -3.8 -1.4 0.5

Note AP SD J an 1.7, Dec 0.9Print AP QC Graphs Done

Collect logsheets since December

Stationery Request for barograms

Instruments Last visit barograph clock replaced

Last TW Download Dates N/A

Other issues Charter renewal - change to route?

Print latest Obs Done

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http://www.meteo.shom.fr/vos-monitoring/

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nObs from V2EU 1 Jan 06 to 14 Feb 06

V2EU 30124 99013 31519 41495 83019 10265 20236 40116 52016 75262 888// 22234 00310 20303 327// 40403 80245=V2EU 30184 99025 31528 41/98 83013 10270 20241 40069 56047 75262 8//// 22233 00310 80250=V2EU 31004 99041 31533 41498 83013 10300 20251 40076 52004 70322 882// 22234 00310 20201 334// 40302 80265=V2EU 31064 99055 31538 41498 83013 10315 20244 40012 56064 70322 885// 222// =V2EU 31124 99069 31545 41497 73219 10300 20258 40066 52016 70322 876// 22234 00310 20202 327// 40402 80270=V2EU 31184 99081 31551 41/97 82112 10265 20244 40057 54003 71722 8//// 22234 00310 80250=V2EU 01004 99095 31561 41598 72913 10280 20252 40070 52004 70322 878// 22234 00310 20302 322// 40403 80260=V2EU 01064 99105 31569 41598 72713 10295 20260 40002 56005 70322 878// 22233 00310 20303 328// 40503 80270=V2EU 01124 99117 31576 41494 82924 10265 20236 40066 52046 78122 888// 22233 00300 20505 323// 40506 80245=V2EU 01184 99129 31585 41498 12713 10280 20244 40005 56030 70122 81/// 22233 00300 80255=V2EU 02004 99141 31593 41498 52313 10295 20245 40051 52039 70322 8566/ 22233 00300 20201 330// 40602 80260=

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PMOs know inspection process on their national VOS• do it regularly• know the instrumentation• know the NMS documentation requirements

But less familiar with Foreign VOS, and need to:• use Pub 47 to identify country of recruitment• know the procedures & instrumentation of that country• document the inspection visit• advise VOS FP in country of recruitment of inspection details

Inspections of Foreign VOS

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Individual countries have differing practices in:• instrumentation• paper and electronic logbooks• reporting practices - designated areas and times to report

PMOs need to be familiar with these practices to do a good inspection, i.e. know the barometer setting etc

SOT Task Team on Instrument Standards to document national instrument practices:• August 05, request to VOS FPs to provide details of barometer

setting on VOS ships

Different National Practices

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Barometer Types & Settings

National VOSBarometer TypeBarometer setting 1

Type of Correction Tables used(if Nil state Nil)Type of Transfer StandardBarometer used by PMOFrequency of barometercomparisonBarograph TypeBarograph setting 1

1. Barometer/barograph setting: Station Level or Mean Sea Level

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PMO-III, 23-24 March 2006, Hamburg.T

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PMO-III, 23-24 March 2006, Hamburg.T

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Using the Information

Knowing the Foreign VOS barometer type and setting allows PMO to make an accurate barometer comparison and inform the observer of the correct procedure for obtaining MSL for the OB.

For example, a UKVOS precision aneroid outputs station level pressure and a correction for barometer height above sea level must be applied from a Correction Table to obtain MSL for the OB

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Using the Information (2)

Knowing the Foreign VOS barometer type and setting means PMO will know how the electronic logbook software should be configured eg. TurboWin.

For example a UKVOS precision aneroid outputs station level pressure so the TurboWin barometer screen must read “NO” to question ‘barometer reading indicates pressure at mean sea level’. TurboWin will then add the correction for height to sea level.

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TW Configuration details

Australia developed a TurboWin Configuration sheet which is now used by Australia & NZ PMOs

The sheet records details of the station settings entered when TurboWin is set up

A copy is left on board ship, so same values can be entered if TurboWin has to be reinstalled, eg after a computer crash

Use of this sheet ensures consistency in the metadata and makes it easy for a ship to set up TW again

TurboWin Configuration sheet

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Foreign VOS Inspection

Request received from agent for met supplies for MV STATENDAM

Ship identified from MeteoFrance VOS monitoring site as KNMI VOS

Lots of recent Obs filed for PHSG MeteoFrance monitoring stats showed AP 2.5 to 3.0

hPa high Visit made 14 Feb 2006. Supplies issued, thanked

observers for Obs Advised MSL pressure was too high, located reason for

error

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MV Statendam pressure plot

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MV Statendam pressure errors

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Foreign VOS Inspection (2)

MV Statendam has a Fuess Aneriod barometer with a correction label ‘ Nil to MSL’

A comparison with PMO Transfer Standard (corrected to MSL) confirmed Fuess MSL was accurate

The observers were reading the Fuess Aneroid So why are the Obs pressures 2 to 3 hPa high? Asked observer what they do with the reading It is input to the TurboWin programme TurboWin barometer screen was set to ‘NO’ so TW

was adding correction to MSL to a reading that was MSL, hence the reason for the high pressure readings!

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Statendam Inspection was successful because:• Ship got supplies needed for programme• Ship was thanked for the Obs• Visit identified and resolved problem causing the high APs

If PMO had not looked at the Monitoring Stats as part of pre-inspection preparation, the AP problem would not have been identified and thus the opportunity to fix it lost

PMO reported inspection outcome to KNMI. KNMI advised ship now under US VOS programme

Successful Inspection Outcome

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Generic Inspection Form

Inspection visits to Foreign VOS should be reported back to Country of Recruitment

This allows the country to update ship details, metadata etc

A Generic Inspection Form for Foreign VOS is proposed

This form could be downloaded from VOS website, completed and sent by email to VOS FP in Country of Recruitment

Feedback on format of Generic Inspection Form is sought from PMOs

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Actions required

Request PMO/NMS to provide details of VOS Barometer Settings for publication on web

Urge PMOs to become familiar with practices and instrumentation on Foreign VOS

Urge PMOs to use the excellent VOS monitoring tools, provided by UKMO & Meteo France in visit preparation

Request feedback on proposed Generic Foreign VOS Inspection Form

Post completed Form on VOS website PMOs to use Generic Form to advise Country of

Recruitment of inspections undertaken

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Ship Inspections Summary

A well prepared Inspection Visit provides:• useful feedback to shipboard observers• is successful in detecting and correcting problems• is accurately recorded

so that the NMS has confidence in what has been done.

PMO Inspection Visits can have a significant impact on data quality and done well can produce significant results

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Any Questions ?

julie fletcher manager marine observations, nz chair, vos panel pmo-iii, 23-24 march 2006, hamburg,...

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