River Bathymetry Model Based on Floodplain Topography

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027049%3A_____%2F19%3AN0000013" target="_blank" >RIV/00027049:_____/19:N0000013 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41330/19:79285

Result on the web

<a href="https://doi.org/10.3390/w11061287" target="_blank" >https://doi.org/10.3390/w11061287</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/w11061287" target="_blank" >10.3390/w11061287</a>

Result language

angličtina

Original language name

River Bathymetry Model Based on Floodplain Topography

Original language description

An appropriate digital elevation model (DEM) is required for purposes of hydrodynamic modelling of floods. Such a DEM describes a river’s bathymetry (bed topography) as well as its surrounding area. Extensive measurements for creating accurate bathymetry are time-consuming and expensive. Mathematical modelling can provide an alternative way for representing river bathymetry. This study explores new possibilities in mathematical depiction of river bathymetry. A new bathymetric model (Bathy-supp) is proposed, and the model’s ability to represent actual bathymetry is assessed. Three statistical methods for the determination of model parameters were evaluated. The best results were achieved by the random forest (RF) method. A two-dimensional (2D) hydrodynamic model was used to evaluate the influence of the Bathy-supp model on the hydrodynamic modelling results. Also presented is a comparison of the proposed model with another state-of-the-art bathymetric model. The study was carried out on a reach of the Otava River in the Czech Republic. The results show that the proposed model’s ability to represent river bathymetry exceeds that of his current competitor. Use of the bathymetric model may have a significant impact on improving the hydrodynamic model results.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10501 - Hydrology

Project

<a href="/en/project/UH0842" target="_blank" >UH0842: Tools for effective and safe management of rainwater in Prague city - RainPRAGUE</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

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

Name of the periodical

Water

ISSN

2073-4441

e-ISSN

—

Volume of the periodical

11

Issue of the periodical within the volume

6

Country of publishing house

CH - SWITZERLAND

Number of pages

18

Pages from-to

1287

UT code for WoS article

000475346300175

EID of the result in the Scopus database

2-s2.0-85068878188