Unstructured triangular cellular automata for modeling geographic spread

Ortigoza, Gerardo

doi:10.1016/j.amc.2015.01.116

Cited by 8 publications

(4 citation statements)

References 21 publications

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“…Nevertheless, this does not remove the gridinduced bias [278], but only changes the pattern of the bias [282]. Irregular grids have been suggested as a solution [278,283,284], and have been used (for example in a CA of landuse change [285]), but their wider application is still rare. In light of this, [23] suggest the use of multiple landscape geometries to account for this potential source of modelling bias.…”

Section: Discussionmentioning

confidence: 99%

Emerging Opportunities for Landscape Ecological Modelling

Synes

Brown

Watts

et al. 2016

Curr Landscape Ecol Rep

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Landscape ecological modelling provides a vital means for understanding the interactions between geographical, climatic, and socio-economic drivers of land-use and the dynamics of ecological systems. This growing field is playing an increasing role in informing landscape spatial planning and management. Here, we review the key modelling approaches that are used in landscape modelling and in ecological modelling. We identify an emerging theme of increasingly detailed representation of process in both landscape and ecological modelling, with complementary suites of modelling approaches ranging from correlative, through aggregated process based approaches to models with much greater structural realism that often represent behaviours at the level of agents or individuals. We provide examples of the considerable progress that has been made at the intersection of landscape modelling and ecological modelling, while also highlighting that the majority of this work has to date exploited a relatively small number of the possible combinations of model types from each discipline. We use this review to identify key gaps in existing landscape ecological modelling effort and highlight emerging opportunities, in particular for future work to progress in novel directions by combining classes of landscape models and ecological models that have rarely been used together.

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Section: Discussionmentioning

confidence: 99%

Emerging Opportunities for Landscape Ecological Modelling

Synes

Brown

Watts

et al. 2016

Curr Landscape Ecol Rep

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“…An important adverse characteristic of Cellular Automaton algorithms with simple evolution rules is the fact that their results are strongly affected by the geometry of the underlying grid (Schönfisch 1995), because plane front waves appear where isotropic propagation is expected. For example, the binary spread on a rectangular grid with Neumann neighbourhood produces a diamond shape front while structured triangular grids produce a hexagonal shape (Ortigoza 2015). This means that Cellular Automata with simple rules are anisotropic at local scale, i.e.…”

Section: A Remark On the Equivalence By Cellular Automata And Finite ...mentioning

confidence: 99%

Friction decoupling and loss of rotational invariance in 2D flooding models

Cozzolino

Varra

Cimorelli

et al. 2021

Advances in Water Resources

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“…The triangular tiling of a plane was first considered by Bays [3] at the end of the last century. Triangular CAs regularly appear in different contexts (see, for instance, [1,25,19,33]). Here, we focus on the simplest triangular CAs: automata that update the states of the cells on the basis of the states of the adjacent cells only.…”

Section: Introductionmentioning

confidence: 99%