Quality of flood extents delineated by a non-hydrodynamic GIS tool
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020711%3A_____%2F19%3A00004698" target="_blank" >RIV/00020711:_____/19:00004698 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/19:00108976
Result on the web
<a href="http://dx.doi.org/10.1016/j.catena.2018.12.032" target="_blank" >http://dx.doi.org/10.1016/j.catena.2018.12.032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.catena.2018.12.032" target="_blank" >10.1016/j.catena.2018.12.032</a>
Alternative languages
Result language
angličtina
Original language name
Quality of flood extents delineated by a non-hydrodynamic GIS tool
Original language description
Delineation of flood extents is an important task in various disciplines. Traditional sophisticated hydrodynamic or alternative non-hydrodynamic approaches can be used depending on the availability and quality of input data and, in particular, the purpose of the delineation. This work focuses on testing the accuracy of flooded areas computed by GIS-based non-hydrodynamic AIZM tool, which is undemanding in terms of input data and technological requirements. The flood delineation is carried out on the basis of flood height at a single point and its spreading along a stream line over a digital elevation model (DEM). In order to assess the tool's performance, flood inundations have been computed along 60 river reaches in the Czech Republic and compared with benchmarks inundations: (1) real flood events that occurred in 1997, 2002 and 2006, as mapped from aerial and satellite imagery and (2) flood hazard maps designed for flood events of 5-, 20- and 100-year return periods. The accuracy of the outputs is examined and interpreted in the context of the river reaches' specificities to identify generally favourable conditions as well as the key limitations of the model. The results outline that under certain conditions, the AIZM tool can be used as a reliable tool for flood extent delineation in data scarce areas (e.g. lacking hydrodynamic constants and channel bathymetry), for reconstruction of past flood events or for preliminary estimation of flooded areas.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10508 - Physical geography
Result continuities
Project
—
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Catena
ISSN
0341-8162
e-ISSN
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Volume of the periodical
175
Issue of the periodical within the volume
April
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
21
Pages from-to
367-387
UT code for WoS article
000459358500034
EID of the result in the Scopus database
2-s2.0-85059464713