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GLC2000 First Results Workshop: Overview, Objectives, and Status

This workshop provides an overview of the GLC2000 project, its objectives, and current status. It covers topics such as global land cover mapping, regional map legends, image classification methods, product validation strategy, and product distribution/publication policy.

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GLC2000 First Results Workshop: Overview, Objectives, and Status

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  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 product’s 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 applications…focus 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

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