ERROR PROPAGATION IN WATERSHED ASSESMENT. A CASE STUDY OF DELINEATION POLLUTION CONTRIBUTION AREA

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F18%3A10239553" target="_blank" >RIV/61989100:27350/18:10239553 - isvavai.cz</a>
Result on the web
<a href="https://gisak.vsb.cz/GIS_Ostrava/GIS_Ova_2018/proceedings/proceedings.pdf" target="_blank" >https://gisak.vsb.cz/GIS_Ostrava/GIS_Ova_2018/proceedings/proceedings.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
ERROR PROPAGATION IN WATERSHED ASSESMENT. A CASE STUDY OF DELINEATION POLLUTION CONTRIBUTION AREA
Original language description
Solving of an environmental pollution is one of our primary effort. It is important to find the source of the pollution to stop this demotion in a case that it is not self-evident. Dripping water chemicals are usually invisible so we use hydrological analysis in GIS to clarify invisible processes. These analyses are very sensitive to a digital terrain model accuracy. The paper describes the evaluation of a watershed assessment with a respect to uncertainty of a digital terrain model (DTM) and its precision. There is used sequential Gaussian geostatistical simulation to simulate probable variations of a DTM and the Monte Carlo simulation to delineate a watershed area. Elevation data from LiDAR scanning were used and two levels of terrain accuracy were set. The result showed, that high errors can leads to less stable solution a can significantly devaluate watershed delineation.
Czech name
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Czech description
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Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
GIS Ostrava 2018 : GIS for Safety & Security Management : March 21st – 23rd 2018, Ostrava, Czech Republic
ISBN
978-80-248-4235-6
ISSN
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e-ISSN
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Number of pages
10
Pages from-to
32-42
Publisher name
VŠB - Technical University of Ostrava
Place of publication
Ostrava
Event location
Ostrava
Event date
Mar 21, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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