WOCE Global Data V3

1
WOCE Global Data V3
All of it
WOCE-DPC Report Nathan Bindoff and David M.
Legler Co-Chairs, WOCE DPC WOCE
Conference November 2002
2
WOCE Data System 2001
12 Streams, 22 Elements Data Information Unit
3
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 Set
5. Complete integrated WOCE data
6. 2002 WOCE Data Server
7. Online 1-stop node for WOCE data

4
Complete collection of data within DACs

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

5
WOCE GLOBAL DATA V3

• Goals
• -Continue emphasis on data assembly QC
• -Complete collection of data within DACs
• -Include data orphans
• PALACE DATA
• -Integrate the data

6
Integration

• 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
• Product Strategy
• - Off-line (DVDS)
• - On-line (DODS, DVD Mirrors)

7
Other Interfaces

• Netcdf and DOD's compatible
• - Languages Fortran, C, C, Java, Perl
• - Packages Matlab, IDL, Ferret, ncTools
• - Automatic methods for writing code
• Platforms (accessible)
• - Windows
• - Linux, Unix
• - Mac OS

8
Searching

• Query users for search criteria
• Latitude range, longitude range, depth range
• Time range
• Presence of (some) variables
• Expo-code
• Observation platform (data stream)
• Search results
• List of DVD-ROM files (for off-line extraction)
• List of DODS URL (for on-line extraction)

9
WOCE V3 Search Tool
10
On-Line Home for WOCE Data

• 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.)

11
The WOCE archive at WDC-Oceanography (NODC)

• All DACs providing data archive to NODC
• DACs are submitting entire holdings to NODC
• Each archive will be assigned an NODC accession
  identifier that reflects WOCE e.g
• WOCE Global Data Current Meter Data, Version
  3.0?
• WHPO, UOT and cm data (and flags) are to be
  preserved in NODC databases.

12
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.