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Enhanced Environmental Monitoring Development: Lessons Learned Demonstrations

Explore recent developments and lessons learned on environmental monitoring demonstrations, featuring IMAGE2000 and CORINE Land Cover datasets for land cover changes analysis. Discover ways to optimize reduction activities and flood forecasting through modeling.

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Enhanced Environmental Monitoring Development: Lessons Learned Demonstrations

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  1. Enhanced environmental monitoringRecent development & lessons learned on demonstrations (task 6) • IMAGE2000 & CORINE Land Cover 2000 • Land cover changes 1990-2000 Markus Törmä & Elise Järvenpää Envifacilitate project meeting, Helsinki 3.- 4.10.2005

  2. IMAGE2000 • LANDSAT 7 ETM+ mosaic, v. 2000 (+/-1 year) • Can be downloaded from JRCs website • http://image2000.jrc.it/ • Individual orthorectified scenes in national map projection system • European mosaic • Finnish image mosaic from SYKE • Delivered as DVD • Delivery costs are charged • Yearly licence • E-mail to clc2000@ymparisto.fi

  3. Finnish CORINE Land Cover 2000-dataset • www.ymparisto.fi (Information services Data systemsGIS datasets)http://www.ymparisto.fi/default.asp?contentid=151717&lan=fi • User agreement must be filled in and send to clc2000@ymparisto.fi • User name, password and detailed downloading instructions as a response • Datasets (GEOTIFF, Esri Shape-file): • CLC2000 dataset descriptions • CLC2000 LC/LU 25 m raster • CLC2000 LC/LU 25 m source element raster • CLC2000 LC/LU 25 m age element raster • CLC2000 LC/LU 25 ha vector • National CLC2000 LC/LU 25 ha vector can be downloaded also from EEAs website (http://dataservice.eea.eu.int/dataservice/)

  4. End users • Usage of standard CLC2000 data (25 ha) • Nationwide thematic maps and statistics in EU-reporting (WFD etc.) • Usage of national CLC2000 data (25 m) • Hydrological modeling • runoff ->flood forecasting etc (operative at SYKE) • soil moisture and evapotranspiration modeling • Nutrient loss modeling in agricultural areas and forests • optimization of reduction activities • Planning of buffer zones along water cources • Evaluation of pressures and impacts within drainage basins for Water framework directive • Ancillary data for remote sensing applications (e.g. transmissivity of forests  snow cover mapping) • Modeling of biodiversity together with map data (research phase)

  5. Landcover changes 1990-2000 • Corine 1990 and Corine 2000 • Change areas • Pilot area in S-W Finland

  6. Classes – CORINE2000 main classes • Urban areas (+ immediate surroundings) • Agricultural areas • Forests, h>5m & cc > 30% • Deciduous forest • Coniferous forest • Mixed forest • Open bogs (cc<10%) • Waterbodies • Transitional woodland (sparse forest), h<5m or cc < 30% (contains also un-built urban areas, electric transmission lines, roads) • Interpretation of TM-images using statistics of ETM-images in forest classes

  7. Source of information • Urban environment (site area calculated using SLICES method) • BDR 2003 (points selected according to a construction year 1990 and 2003) • Agricultural land • BasicCD field mask (<1992) and SLICES 1999 • Forests • LANDSAT 5 TM (appr. 1990) and LANDSAT 7 ETM+ (2000) satellite images • Open bogs • CLC2000; NO CHANGE MASK • Waterbodies • CLC2000; NO CHANGE MASK • Transitional woodlands • LANDSAT 5 TM and LANDSAT 7 ETM+ satellite images (approx. 1990 and 2000)

  8. LC changes Processing: • Changed areas from Landsat-images using Autochange-program • The type of change is defined using the existing map data (CLC 1990 & CLC2000) Possible results: • Change matrix 1990-2000 • Propotion of forests (>90%) in 25m, 100m, 250m, 500m, 1000m grids • Changes in built-up areas (=sites) in 250 m grid

  9. Change matrix S-W Finland Information for end users…. Detected changes as km2 and % of the total land area

  10. Information for end users…. Forest changes S-W Finland Propotion of forests (>90%) in 25m, 100m, 250m, 500m, 1000m grids

  11. Information for end users…. Changes in built-up areas • 1990-2000 • 250 m grid cell

  12. Problems in change detection analysis • Rectification and calibration inaccurancies > small changes are not detected, all changes are not real changes • No reference data 1990 > uncertainty of forest interpretation 1990 • Lack of source and age elements of the BasicCD (agricultural areas) 1990 > false changes in agricultural areas 1990-2000 • Shortages in the content of BDR > definition of built-up area • Lack of validation data • Results are preliminary!

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