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

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10500 - Earth and related environmental sciences

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

GIS Ostrava 2018 : GIS for Safety &amp; 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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Počet stran výsledku

10

Strana od-do

32-42

Název nakladatele

VŠB - Technical University of Ostrava

Místo vydání

Ostrava

Místo konání akce

Ostrava

Datum konání akce

21. 3. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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