How to extract river networks and catchment boundaries from DEM: a review of digital terrain analysis techniques

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F09%3A31458" target="_blank" >RIV/60460709:41330/09:31458 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

How to extract river networks and catchment boundaries from DEM: a review of digital terrain analysis techniques

Original language description

Raster digital elevation models (DEMs) are a source of data with rapidly increasing quality and availability. A review of hydrologicallyoriented digital terrain analysis (DTA) techniques is provided. Apart from computation of basic terrain attributes, the main tasks are extraction of the automated river network and catchment boundaries. The basic approach is overland flow simulation using the predetermined flow directions from each cell to one or several of its neighbours. Such an approach requires treatment of the problematic parts of DEM, where the flow directions cannot be determined due to the absence of any lower neighbour (i.e. closed depressions and flat areas). Except in the case of two recently developed computer programs (DEMETERR and TAS), the available GIS software does not offer a satisfactory range of usable methods. Further development of programs like ArcGIS or GRASS is therefore necessary to fill this gap.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DE - Earth magnetism, geodesy, geography

OECD FORD branch

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Project

<a href="/en/project/GA103%2F07%2F1620" target="_blank" >GA103/07/1620: Prediction and simulation models in the water resources control</a><br>

Continuities

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

Publication year

2009

Confidentiality

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

Name of the periodical

Journal of Landscape Studies - online version

ISSN

1802-4416

e-ISSN

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Volume of the periodical

2

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

12

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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