Joint Research Centre

1
Joint Research Centre GLC2000 First Results
Workshop Ispra 18th to 22nd March 2002 Project
overview
2
Review of GLC 2000 objectives

• Provide Global Land Cover for 2000
• Serve a broad user community
• Science programmes (IGBP,)
• Global Observing Systems (GOFC GOLD)
• Environmental Conventions (MA, IPCC)
• UN Organisations (UNEP, FAO, UNFF)
• Regional development assistance programmes
• National needs

3
Implementation strategy

• VEGA 2000
• VEGETATION data are a sound base for land cover
  mapping
• Centralised processing ensures consistency of
  basic data across regions
• provides observations throughout year 2000
• Scaleable legend
• Regionally detailed globally applicable through
  aggregation
• LCCS ensures traceability between the two

4
Implementation strategy cont.

• Implementation by regional experts
• optimises image classification methods
• supports regionally appropriate map legend
  definition
• validation by regional experts
• international ownership
• spreads the workload

5
GLC 2000 Project Status

• The VEGA 2000 S1 data set covers the period 1st
  November 1999 to 31st December 2000
• 55 regional windows have been extracted and
  distributed by GVM to 30 GLC 2000 partners
• The Global legend has been agreed upon
• A range of methods have been used to generate
  first-draft data classifications for regions
  including Eurasia, Africa, South America, North
  America, SE Asia and Europe

6
Workshop objectives

• Review GLC2000 production status
• Review image classification methods
• Review global and regional legends
• Review database design implementation
• Review product validation strategy
• Review product distribution / publication policy

7
Validation strategy

• Regional responsibility for regional products
• Everyone can go as far as they want
• A uniform systematic QA adopted by all
• Global product
• Single approach to give statistically valid
  measures of global products performance
• International involvement and consensus
• Special side session on Wednesday morning

8
Product distribution / publication policy

• Regional maps should be published by the lead
  scientists and their teams
• Regional databases (maps, supporting metadata)
  will be collected by GVM, aggregated to give the
  global product and made available to all partners
  the wider community via Web
• All partners fully acknowledged
• Mirror sites established within the Partnership

9
continued

• Published workshop report based on a written
  version of the presentations. All submissions by
  10th May
• GVM to co-ordinate production of GLC GBA 2000
  Atlas
• Project summary
• List of partners
• Region by region description of map legend
• classification method summary
• the regional map (at reduced scale)
• full scale sub-sets to illustrate the thematic /
  spatial detail of the product and to illustrate
  applicationsfocus is on processes with high
  regional relevance
• CD ROM Version of the Atlas

10
Workshop regional group objectives

• Harmonize regional products
• Compare map outputs within regions (Class
  boundaries, area covered)
• Finalise regional map legends
• Finalise regional aggregations to the global
  product legend
• Regional product quality assessment
• Structured validation process to be tested at the
  workshop

11
Summary

• Agreement on regional legends
• Agreement on a final QA strategy
• Agreement on Global Validation strategy
• Identify all remaining gaps
• Agree on a product and publication strategy
• Agree on data format and metadata structure
• Finalise the remainder of the project calendar