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