a quality control system for biological oceanographic data in the northern indian ocean p.m.a....
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A Quality control system for Biological Oceanographic data in the Northern Indian Ocean
J. S. Sarupria and P.M.A. bhattadiriP.M.A. bhattadiri
Indian Oceanographic Data Centre
National Institute of Oceanography,
Dona Paula, Goa, India.
Data Flow Structure
RNODC - INDO
NMDC (Ocean.)
NationalUsers
IOC / IODE
IOCINDIO
International
Users
Biological Databases for Indian Ocean at IODC
Primary Productivity
Chlorophyll a
Zooplankton Biomass and Species
Zoo-benthos Biomass and Density
Microbiological Parameters (Bacterial Analysis)
Major Sources of Biological Data Set
International Indian Ocean Expedition (1960-65)
National Oceanographic Programmes (1973 – cont.) INS Darshak Cruises (1973 –78) RV Gaveshini Cruises (1976 –93) FORV Sagar Sampada Cruises (1985 –cont.) ORV Sagar Kanya Cruises (1983 –cont.)
QCS for Biological Parameters
PP measured by14C uptake rate in PP by G – M Counter Gas Flow Counters Liquid Scintillation System (LSS)
Chl measured bySpectrophotometer Fluorometer
Primary Productivity (PP)Chlorophyll a (chl )
QCS Checks
M - Meta Data Information V - Visual Inspection R - Maximum value of specific
Production T - Tailend Increase S - Statistical Check
M – Metadata Information
• Inventory level information,
• Validate date, time, latitude, longitude, sounding (depth),
• Duplicates, etc.
V – Visual Inspection
Chlorophyll (chl ) Primary Productivity (PP)
T – Tailend Increase
S – Statistical check
• Mean + 5 SD
( Coastal and Observed Depth < 50 m)
• Mean + 3 SD
( All Others)
R – Maximum Value of Specific Production
Thank You
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