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Pontius Jr. Methods Based on a Cross-Tabulation Matrix to Validate Land Use Cover Maps

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dc.contributor.authorPaegelow, Martin
dc.contributor.authorMas, Jean François
dc.contributor.authorGallardo Beltrán, Marta
dc.contributor.authorCamacho Olmedo, María Teresa
dc.contributor.authorGarcía Álvarez, David
dc.contributor.editorGarcía Álvarez, D.
dc.contributor.editorCamacho Olmedo, MT
dc.contributor.editorPaegelow, M
dc.contributor.editorMas , JF
dc.contributor.orcidhttp://orcid.org/0000-0001-9254-5312
dc.contributor.orcidhttp://orcid.org/0000-0002-6138-9879
dc.contributor.orcidhttps://orcid.org/0000-0003-3178-1543
dc.contributor.orcidhttps://orcid.org/0000-0003-3611-8003
dc.date.accessioned2024-07-17T07:51:12Z
dc.date.available2024-07-17T07:51:12Z
dc.date.issued2022
dc.description.abstractSeveral validation techniques based on the cross-tabulation matrix can be applied to validate Land Use Cover (LUC) maps. The exercises in this chapter focus, in particular, on the cross-tabulation techniques proposed by Robert Gilmore Pontius Jr., who has developed many indices and techniques in this field. Given his major contribution to this family of validation techniques, we have associated his name here with cross-tabulation techniques without this in any way implying that his scientific activity is limited to this field. The null model (Sect. 1) is especially useful for validating simulations, comparing the modelled map to a reference map with full persistence. LUCC budget (Sect. 2) only focusses on changes, which it splits into different components. This method can be used to compare the changes we want to validate with a reference set of changes, so providing interesting information as to how well our maps capture the dynamics of the landscape. Quantity and allocation disagreement (Sect. 3) analyse the differences between the reference map and the map being validated using two indices: disagreement in quantity and disagreement in allocation. The Figure of Merit (FoM) (Sect. 4) technique is used to validate a set of LUC changes by comparing them with a reference, distinguishing between different components of agreement: correctly simulated change, wrongly simulated or missing change. Incidents and States (Sect. 5) allows us to identify illogical transitions in a time series of maps by providing the number of states and transitions that a cell undergoes over the course of the series. Intensity analysis (Sect. 6) and Flow matrix (Sect. 7) also enable us to validate the logic of LUC changes in a time series of maps. Intensity analysis provides information on the speed of changes, identifying those transitions or changes that do not follow a logical trend, while the flow matrix enables us to spot unstable changes in a series of maps. In this chapter, we present examples of how these techniques can be used in different cases: to validate single LUC maps, to validate a series of maps with two or more time points, to validate simulated changes against a reference map of changes and to validate changes simulated by various models. All these techniques are illustrated by exercises using datasets from the Asturias Central Area and the Ariège Valley.en
dc.identifier.citationPaegelow, M., Mas, JF., Gallardo, M., Camacho Olmedo, M.T., García-Álvarez, D. (2022). Pontius Jr. Methods Based on a Cross-Tabulation Matrix to Validate Land Use Cover Maps. In: García-Álvarez, D., Camacho Olmedo, M.T., Paegelow, M., Mas, J.F. (eds) Land Use Cover Datasets and Validation Tools. Springer, Cham. https://doi.org/10.1007/978-3-030-90998-7_9
dc.identifier.doihttps://doi.org/10.1007/978-3-030-90998-7_9
dc.identifier.isbn9783030909970, 9783030909987
dc.identifier.urihttps://hdl.handle.net/20.500.14468/22979
dc.language.isoen
dc.page.final187
dc.page.initial153
dc.publisherSpringer
dc.relation.centerFacultades y escuelas::Facultad de Geografía e Historia
dc.relation.departmentGeografía
dc.relation.ispartofLand Use Cover Datasets and Validation Tools
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject54 Geografía
dc.subject.keywordsLUCC budgeten
dc.subject.keywordsChange matricesen
dc.subject.keywordsCross-tabulationen
dc.subject.keywordsError Analysisen
dc.subject.keywordsFigure of Meriten
dc.subject.keywordsIntensity Analysisen
dc.subject.keywordsFlow matrixen
dc.titlePontius Jr. Methods Based on a Cross-Tabulation Matrix to Validate Land Use Cover Mapses
dc.typecapítulo de libroes
dc.typebook parten
dspace.entity.typePublication
relation.isAuthorOfPublication825b4b7b-503b-44d1-92cd-f23b0beeea2c
relation.isAuthorOfPublication.latestForDiscovery825b4b7b-503b-44d1-92cd-f23b0beeea2c
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