2nd international Conference for GODAR-WESTPAC

JODC, Japan Coast Guard, Tokyo 2004

2GOSUDNovember 2004

Context and Overall Objectives

The Global Ocean Surface Underway Data (GOSUD) Project is an IOC programme designed as an end to end system for data collected by ships at sea.

The goal of the GOSUD Project is to develop and implement a data system for surface ocean data,

to acquire and manage these data

to provide a mechanism to integrate these data with other types of data collected in the world oceans.

For the purposes of this Project, the data concerned are those collected as a platform is underway and from the ocean surface down to about 15m depth.

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Project Objectives

To organize the data that are presently collected and to work with data collectors to improve practices to meet the sampling and data accuracy set forth by GOOSto build a comprehensive archive containing sufficient meta-data that users will have clear information about accuracy and instrumentationto add value to the archive by refining and standardizing existing QA procedures on RT and DM data to provide data and information to users in timely fashionto return information to data collectors about the data they provideto work with scientific organizations interested in surace data to provide products to a broader community

The initial project plan is available from the web site:www.ifremer.fr/sismer/program/gosud/documentation.htm

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GOSUD Project Data Flow

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GOSUD Data In WESTPAC Region received in RT since 1989

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GOSUD Real Time Quality Checks

Test 1 : platform identification

Test 2 : impossible date

Test 3 : impossible location

Test 4 : Position on Land Test

Test 5 : impossible speed

Test 6 : global ranges

Test 7 : regional ranges

Test 8 : spike test

Test 9 : gradient

Test 10 : climatology

Test 11 : instrument comparison

the result is a quality flag according to GTSPP flag scale

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GODAR Data received in DM

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Climatologies from the ECOP project http://www.ird.nc/ECOP

& CDrom

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JODChttp://jdoss1.jodc.go.jp/cgi-bin/1997/bss

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GOSUD Project Data Flow

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Links and CooperationARGO:Constant coopération. When combining TSG with surface data from profiles, better statistical computations and climatological analysis can be doneSatellite Community: presentation of GOSUD to the Aquarius/SMOS/Hydros joint meeting, April 2004. There is a strong interest in the GOSUD project, both from NASA and ESA, for calibration/validation of a sensor they are designing that can measure ocean surface salinity from space:

http://aquarius.gsfc.nasa.govhttp://www.esa.int/essal_P/smos.html

CLIVAR : presentation of GOSUD to CLIVAR Ocean Observation Workshop, March 2004– cooperation developpingGOSUD offer to operate as an SSS DAC for CLIVARSAMOS (Shipboard Automated Meteorological and Oceanographical Systems), CLIVAR sub-project with similar objectives, prioritary on meteorological data. cooperation in development to standardize QA and optimize the data circulation WESTPAC, November 2004: Cooperation hoped – GOSUD Steering Committee would very much welcome a WESTPAC representative in the Committee.

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Visit GOSUD:

www.ifremer.fr/sismer/program/gosud

Thanks for your attention