WOCE Global Data V3

WOCE-DPC Report

Nathan Bindoff and David M. Legler

Co-Chairs, WOCE DPC

WOCE ConferenceNovember 2002

All of it

WOCE Data System 2001

12 Streams, 22 Elements + Data Information Unit

Towards Quantitative Oceanography

1. 1995-1997 DAC web sites established

2. 1998 V1 CD-ROM Set (A first for oceanography!)

3. 2000 V2 CD-ROM Set

4. 2002 V3 DVD-ROM Set1. Complete integrated WOCE data

5. 2002 WOCE Data Server1. Online 1-stop node for WOCE data

Complete collection of data within DACs

An estimated 10% of WOCE data collected will never be subitted...

WOCE GLOBAL DATA V3

1. Goals-Continue emphasis on data assembly & QC

-Complete collection of data within DACs

-Include data orphans PALACE DATA

-Integrate the data

Integration

1. Features- Increased consistency in conventions

Time and space coordinates Variable labeling and attributes File structure and formatting

- Ease of access (netCDF and ASCII)- Data retrieval to include QC flags and metadata- Search tool

2. Product Strategy- Off-line (DVD’S)- On-line (DODS, DVD Mirrors)

Other Interfaces

1. Netcdf and DOD's compatible- Languages Fortran, C, C++, Java, Perl

- Packages Matlab, IDL, Ferret, ncTools

- Automatic methods for writing code

2. Platforms (accessible)- Windows

- Linux, Unix

- Mac OS

Searching

1. Query users for search criteria: Latitude range, longitude range, depth range Time range Presence of (some) variables Expo-code Observation platform (data stream)

2. Search results List of DVD-ROM files (for off-line extraction) List of DODS URL (for on-line extraction)

WOCE V3 Search Tool

On-Line Home for WOCE Data

1. Goal is to keep WOCE data alive: - Established 3 mirror sites of V3- Established an update site at NODC- Established DODS servers (expect 3)- Want to exploit powerful capabilities of

DODS to search, subset, and extract to efficiently obtain data they want (extend capabilities of the V3 search tool.)

The WOCE archive at WDC-Oceanography (NODC)

1. All DACs providing data archive to NODC

2. DACs are submitting entire holdings to NODC

3. Each archive will be assigned an NODC accession identifier that reflects WOCE; e.g

WOCE Global Data: Current Meter Data, Version 3.0”

4. WHPO, UOT and cm data (and flags) are to be preserved in NODC databases.

Summary

1. We are continuing evolution towards a complete integrated archive of WOCE data and data products.

2. WOCE Global Data V3 has been delivered.

3. Delivery of data, products in both offline and online, and archive insures legacy of WOCE data.