Elevation model (Water Overlay): Difference between revisions
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The process of adjusting the original surface elevation is called ''piecewise linear reconstruction of the bottom''. | The process of adjusting the original surface elevation is called ''piecewise linear reconstruction of the bottom''. | ||
<ul> | <ul> | ||
<li style="display:inline-block">[[File:piecewisereconstruction_1d.png|thumb|x400px]]</li> | <li style="display:inline-block">[[File:piecewisereconstruction_1d.png|thumb|x400px|1D linear piecewise reconstruction.Source: Kurganov and Petrova (2007)<ref name="Kurganov2"]]</li> | ||
<li style="display:inline-block">[[File:Inundation overlay 04 HWP( | <li style="display:inline-block">[[File:Inundation overlay 04 HWP(2).PNG|thumb|x400px|2D linear piecewise reconstruction. Source: Horváth et al. (2014)<ref name="Horvath"/>]]</li> | ||
<li style="display:inline-block">[[File:Inundation overlay 04 HWP( | <li style="display:inline-block">[[File:Inundation overlay 04 HWP(1).PNG|thumb|x400px|Application of reconstructed elevation Source: Horváth et al. (2014)<ref name="Horvath"/>]]</li> | ||
</ul> | </ul> | ||
<br style="clear:both;"> | <br style="clear:both;"> | ||
Revision as of 12:35, 12 April 2019
Two aspects are described on this page: Rasterization of the height sectors Piecewise linear reconstruction of the bottom.
Piecewise linear reconstruction of the bottom
The implementation of the Water Module is based on second-order semi-discrete central-upwind scheme by Kurganov and Petrova (2007)[1]. The surface elevation, also named bottom in the paper, is slightly adjusted to support the scheme to become well balanced and positivity preserving. The process of adjusting the original surface elevation is called piecewise linear reconstruction of the bottom.
- [[File:piecewisereconstruction_1d.png|thumb|x400px|1D linear piecewise reconstruction.Source: Kurganov and Petrova (2007)Cite error: Invalid
<ref>tag; invalid names, e.g. too many [2] </references>- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedKurganov2 - ↑ Zsolt Horváth, Jürgen Waser, Rui A. P. Perdigão, Artem Konev and Günter Blöschl (2014) ∙ A two-dimensional numerical scheme of dry/wet fronts for the Saint-Venant system of shallow water equations ∙ found at: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.700.7977&rep=rep1&type=pdf ∙ http://visdom.at/media/pdf/publications/Poster.pdf ∙ (last visited 2018-06-29)
- ↑ Cite error: Invalid