e-soter at scale 1: for the Danube Basin Vincent van Engelen

Transcription

1 e-soter at scale 1: for the Danube Basin Vincent van Engelen

2 Underlying the SOTER methodology is the identification of areas of land with a distinctive, often repetitive, pattern of landform, lithology, surface form, slope, parent material, and soil.

3 landform SOTER units parent material soil

4

5 The project had two major research thrusts: Improvement of the SOTER methodology at scale 1:1 million by using moderateresolution optical remote sensing systems to delineate geo-botanical units and to associate them statistically with existing parent material/geology and soil information Advanced methodologies applied at scale 1: using geomorphic landscape analysis ( natural breaks ), geological re-classified remote sensing, and a remote sensing approach of soil Top-down approach (from broad landscapes to finer classes) Bottom-up approach (from landform parameters to landform units) New parent material classification Use of various RS and PS data (gamma-ray, multispectral)

6 Conventional/ manual Partly automated (scale 1:1 million) SOTER Landform: Parent material: Soils: e-soter Landform: Parent material: Soils: manual interpretation of topography from legacy geological maps from legacy soil maps and soil profiles SOTER algorithm using DEM (a) from legacy geological maps (b) RS (a) from legacy soil maps and soil profiles (b) RS New approaches (scale 1: ) Landform: Parent material: Soils: (a) geomorphological (b) hill-shed analysis (c) object oriented classification from legacy geological/soil maps supported by gamma-ray/rs data from soil observation points/soil maps

7 Landform analysis (top-down): Hill slope analysis Object oriented approach Object oriented approach

8 Best results: Based on physical entities peak sheds intersected with several versions of slope breaks (Line A of slope break extraction). Characterized with minimum, maximum, mean, and range values of elevation and slope. Upper slopes are hatched, lower slopes dotted, and mid-slopes are transparent

9 Landform analysis (bottom-up) (BGR & SciLands GmbH) Enhanced geomorphometric terrain parameters: Skeleton lines (channel lines, ridge lines, breaks in slopes) Slope gradient Convergence-divergence Index Flow ascumulation Vertical distance to channel lines Modified Soil Moisture Index Terrain Classification Index for Lowlands (TCIlow ) Summit Index Relative Altitude Roughness

10 'Modified Soil Moisture Index' for part of the Chemnitz pilot area

11 'Terrain Classification Index for Lowlands' (TCIlow) for part of the Hungarian pilot area

12 Geomorphographic Map of Chemnitz pilot area

13 Geomorphographic Map of Hungary pilot area

14 Geomorphographic Map of UK pilot area

15 Geomorphographic Map of Moroccan pilot area

16 Revised parent material classification (BGR)witk top hierarchical level

17 Integration of terrain, parent material and soil component in a data-rich environment

18 Integration of terrain, parent material and soil component Enhanced SOTER database based on the terrain classification obtained with physical entities at scale of s 1: Image A SOIL 1 component; Image B SOIL 2 component; Image C SOIL 3 component; Image D WRB legend