1. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 GLC 2000 land cover map of the desert locust recession area First results E. Bartholomé, JRC Ispra M. Cherlet, FAO Rome

2. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 The desert locust recession area 19°W – 80°30’E, 46°N – 4°N Main focus on drylands

3. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Input data S10 NDVI for 2000 Re-scaled in vegetation cover percentage Soil effect removed (per-pixel method) Temporal profile smoothed (see ad hoc presentation)

4. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Based on temporal profiles Rigid tresholds on: Max vegetation cover in 2000 Season duration Classification procedure cover time 1/3 Seasonality: max in summer or winter, or double seasonality

5. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Rationale Cover max –corresponds to max development of vegetation –Best correlates with above-ground biomass duration Duration close to phenological definition, but time lag

6. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Classes Max cover Growth duration 1 BARE AREAS 2 SPARSE HERBACEOUS VEGETATION - NOT ANNUAL - TBC 3 SPARSE HERBACEOUS VEG 4 CLOSED-OPEN HERBACEOUS VEG 5 SPARSE DECIDUOUS SHRUB AND SPARSE HERBACEOUS VEGETATION 6 OPEN DECIDUOUS SHRUB AND OPEN HERBACEOUS VEGETATION 7 SPARSE DECIDUOUS SHRUB AND SPARSE HERBACEOUS VEGETATION AND SPARSE TREE LAYER 8 OPEN DECIDUOUS SHRUB AND OPEN HERBACEOUS VEGETATION AND SPARSE TREE LAYER 9 CLOSED-OPEN DECIDUOUS SHRUB AND CLOSED- OPEN HERBACEOUS VEGETATION AND OPEN TREE LAYER 10 NOT DEFINED 100% 5% 75% 50% 25% 10% 136912 months 10 1 2 3 9 8 8 7 4 6 6 5 The same applies for winter vegetation and double season growth

7. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Result

8. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Close-up (1) Sarir (Libya) Irrigated agriculture

9. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Close-up (2) Luxor (Egypt) double growing season

10. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Close-up (3) Senegal - Mauritania

11. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Observation 1 Noise in the 3-5% cover range Haruj es Sawda Volcano (Libya)

12. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Observation 2 Specific year 2000 situation 1999-20002000-2001 Land cover map

13. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 Observation 3 Cropland not detected per se: low % of surface

14. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002 conclusions The method seems efficient for dryland vegetation (bare soil correctly mapped!) The method is sensitive to the specific year for very sparse vegetation Some “soil contamination” Need for regional analysis to label the land cover classes