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GLC2000 Baltic Sea Basin Metria: First Results Workshop

Examination of SPOT VGT composites and ancillary data in the Baltic Sea Basin, with focus on land cover classification using advanced processing techniques. Results reveal 22 classes including artificial surfaces, agricultural crops, water, snow, and more.

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GLC2000 Baltic Sea Basin Metria: First Results Workshop

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  1. GLC2000 - Baltic Sea BasinMetria • Indata: SPOT VGT 10-day composites from 01-04-2000 to 21-10-2000 and several SPOT VGT S-1 composite data for June and September. • Channels: 2 visible (blue/red), NIR, MIR, NDVI, Status Map, Viewing Zenith Angle. • Ancillary Data: CORINE LC, BALANS LC/LU, Sverigeklassning data, 1:250 000 Rasterdata for Norway, DCW vector data, 200m EuropeDEM. GLC 2000 – “FIRST RESULTS” WORKSHOP JRC – Ispra, 18-22 March 2002

  2. Area of Study

  3. Pre-processing of Indata • Remove bad MIR data • Remove water ”ring” around coast • Remove pixels with a VZA > 50º • Remove clouds • Remove snow • Remove urban areas (based on ancillary data)

  4. Bad MIR Data

  5. Water Pixel/ Cloud Problem

  6. Speckled Composite Data

  7. Processing • Unsupervised classification (40 classes) • Majority clustering • Masking of clusters which correspond exactly to reference data • Second unsupervised classification (40 classes) • Automatic and manual comparison od clusters with reference data • Labelling of clusters

  8. Results • 22 Classes in final legend • 11 pure and 11 mixed classes • Countries include: Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Norway, Poland, Sweden. • Additional coverage: Austria, Belarus, Belgium, Czech, France, Hungary, Luxembourg, Moldova, Netherlands, Rumania, Russia, Slovakia, Switzerland,

  9. 1 Artificial Surfaces 2 Agricultural Crops 3 Closed Woody 4 Closed Needleleaved 5 Closed Broadleaved 6 Herbaceous 7 Mixed Op/Cl Woody 8 Waterlogged Herbaceous 9 Bare Rock 10 Loose & Shifting Sands 11 Ice (Snow) 12 Water 13 Mixed 1 & Unconsolidated 14 Mixed 4 & 5 15 Mixed 6 & Shrubs 16 Mixed 6 & Unconsolidated 17 Mixed 8 & Lichen & Soil 18 Mixed 2 & 4 19 Mixed 2 & 5 20 Mixed 2 & 4 & 5 21 Mixed 4 & 5 & 12 22 Mixed 4 & 5 & 8 Legend

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