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” WORKSHOPJRC – Ispra, 18-22 March 2002

• Area of Study

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)

Bad MIR Data

Water Pixel/ Cloud Problem

Speckled Composite Data

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

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,

Legend

• 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