Title: SISMER Syst
1SISMER Systèmes dInformations Scientifiques
pour la Mer F-NODC
Contribution to GODAR-WESTPACfrom
FRANCE Catherine Maillard, Michèle Fichaut,
Loic Petit de la Villeon, Vincent Bernard
SISMER, IFREMER Centre de Brest, BP 70, 29280
Brest Cedex, France www.ifremer.fr/sismer Interna
tional Workshop for GODAR-WESTPAC Tokyo, 5-7
March 2002
2Data available at SISMER
- 174 Data sets from French cruises have been
transmitted to GODAR - 50 CTD cruises 2850 stations from1982-1999
- 124 bottle cruises 4037 stations from 1957 -
1996 - total 6887 stations
- International real time data archived at
ARGO/CORIOLIS data centre in 2001 - whole Pacific Ocean 77 431 profiles from GTS
- West Pacific (60N -30 S W120 E 150) 54591
profiles
32850 CTD Stations
44037 Bottle Stations in WestPAC
577 431 ARGO Profiles (54591 in WestPAC)
6Quality Assurance
- QC0 Check of format and completeness of
information - QC1 Check of location, Date, Duplicates
- QC2 Check of the data points
- Results Elimination or Quality Flag GTSPP
Flag Scale -
- References
- ICES -GETADE Formatting Guidelines for
Oceanographic Data Exchange (http//www.ices.dk/oc
ean/) - ICES -MDM QA Guidelines - CTD - Marine Data
Management working Group (CIEM) Reports - UNESCO/COI/IODE Manual of Quality Control
Procedures for validation of Oceanographic Data -
Manuals and Guides 26 - UNESCO/IOC/IODE GF3 A General Formattin System
for Geo-Referenced Data - Manual and Guides 17
7Sea Surface Salinity Project
- Following OOPC and IOC/IODE XVI Conference
(IODE-XVI-10) recommendation, an Underway Sea
Surface Salinity Data Archiving Project has been
initiated with the objective of - Swift assembly and distribution of data, ready
availability and free access. - Data sets and products are comprehensive in terms
of the variables - Encourage exploration of historical and paleo
data sets. - Encourage processing methods that eliminate or
minimize the production of spurious signals. - Ensure that adequate and timely data are
available for the initialization and validation
of climate forecast systems. - Maximize the utility of the sustained observing
system for various process or intensive studies. - Work with GOOS/GCOS, World Weather Watch and
Global Atmosphere Watch in development and
implementation of the strategy. - The JCOMM-1 meeting supported such a project
urging that integration with other data collected
at the same time be properly considered.
8SSSAL Preliminary Workplan
- Working Groups
- Data Collection
- Transfer, Archiving, Processing
- Products
- Second Meeting Announcement
- September 2002, 16-17
- MEDS
- Ottawa, Canada
- Review of available products and Information
- http//www.ifremer.fr/sismer/program/sssal/
9QC1 Control of the location and Date - Data
collected in station
Automatic Checks Results - Flag Duplicate data
sets Elimination Date Elimination or 5
Ship/Platform velocity Elimination or
5 Location/shoreline Elimination or 5 Bottom
sounding (ETOPO5) Elimination or 3 5
Correction/Interpolation 3 doubtfull
depth
10QC1 Control of the location and Date VISUAL
CHECKS - Data collected in station
11QC2 - Control of the Data points
12QC2 - Control of the Data pointsVisual Checks
13QC2 - Control of the Data pointsRegional
Adjustment for Broad Range Checks
14QC2 - Control of the Data pointsMinimum
Maximum - Broad Range Check
0
200
2000
6000
15QC1 Control of the location and Date - Time
series on fixed mooring
16QC2- Stabilité Verticale
- Seuil de détection de l instabilité
- 0.03 en sigma-t pour stations profondes haute
résolution - à.05 à 0.1 pour stations cotières
- 4 points incriminés 2 niveaux, T, S
- Recherche d autres anomalies sur chacun de ces
4 points - si oui --gt flag4 à ce point
- si non --gt flag4 aux 4 points et validation
manuelle
17QC2 - TESTS DE PIC
- Test de gradient sur 2 points en début et fin de
profil - Test de pic sur 3 points en cours de profil
- seuil de gradient ajusté sur chaque zone
géographique et niveau vertical
18QC2- Test de la climatologie
- Plusieurs climatologies disponibles Levitus 94,
98, Reynaud, Medatlas, MODB - par défaut Levitus 98 1x1 degré
- Définition de l enveloppe de variabilité
- Station du plateau continental fond lt 100 m 5
écarts-type - Station du talus 200lt fond lt 500 4 écarts-type
- station profonde fond gt 500 m 3 écarts-type
19Tests Visuels Subjectifs
- Test de la cohérence interne
- QC1 test de la route
- QC2 coherence interne des valeurs - décalages
- Test de la cohérence externe
- QC1 rappel des positions d un autre fichier si
au moins une position est dans le voisinage au
même moment - QC2 superposition des profils d un autre
fichier - Levers de doute
- stabilité verticale
- pics
- enveloppe climatologique mal définie
20FORMATS
- Meta-Données RDBS - ORACLE
- Données - Observations
- autodescriptive ASCII (MEDATLAS/CORIOLIS ASCII)
- NetCDF
- ? incluent le meta-données sous forme de
mots-clé, obligatoire ou optionnels, également
copiés dans la BD ORACLE - Données - données maillées
- MODB/MEDMEX
- ARGO