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Random checking of ECRINS vs. terrain accuracy in flat areas

Random checking of ECRINS vs. terrain accuracy in flat areas. Philippe Crouzet EEA. Principles:. A subset of rivers from ECRINS has been selected in the part of Germany The set has been exported to KML at the 1:250000 to be superimposed to GoogleEarth

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Random checking of ECRINS vs. terrain accuracy in flat areas

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  1. Random checking of ECRINS vs. terrain accuracy in flat areas Philippe Crouzet EEA

  2. Principles: • A subset of rivers from ECRINS has been selected in the part of Germany • The set has been exported to KML at the 1:250000 to be superimposed to GoogleEarth • Visual examination, with measurement of distance are screen captured and reported. • This assessment aims to capture very small to larger river and has no statistical represnetativeness; despite random selection was carried out according to terrain knowledge.

  3. Area selected

  4. Denmark, Jutland

  5. Denmark, Sjaeland

  6. Schleswig DE-DK

  7. Germany, Mecklenburg Artificial ditch; some inaccuracy in final placement

  8. Germany - Poland River dead arm, not taken Correct small tributary Defluence, one only to select sea Rather accurate set of managed river between ponds

  9. Germany. Canal issue Non existing river segment, hydrological coinsistency nevertheless kept Müllrose city Oder-Spree canal

  10. Germany Frankfurt Oder Partly inaccurate headwater segment (river partly canalised) Artificial canal leading to misplaced river segment Misplaced river segment, hydrological coinsistency nevertheless kept

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