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Quantifying the uncertainty of soil colour measurements with Munsell charts using a modified attribute agreement analysis

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Quantifying the uncertainty of soil colour measurements with Munsell charts using a modified attribute agreement analysis

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dc.contributor.author Marqués-Mateu, Ángel es_ES
dc.contributor.author Moreno-Ramón, Héctor es_ES
dc.contributor.author Balasch Parisi, Sebastià es_ES
dc.contributor.author Ibañez Asensio, Sara es_ES
dc.date.accessioned 2019-09-05T20:04:41Z
dc.date.available 2019-09-05T20:04:41Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0341-8162 es_ES
dc.identifier.uri http://hdl.handle.net/10251/125108
dc.description.abstract [EN] The use of Munsell colour charts is the classical way of determining colour information in soil science. The procedure is well-known and consists of visually comparing soil samples with colour chips ontained in the charts. This visual approach has several drawbacks and although the chart-based procedure is routinely used, it is not easy to find systematic studies on the accuracy of this methodology. In this paper, we seek to gain insight into the strengths and weaknesses of using soil colour charts as a colour measurement device. The tool used to conduct our study is a modification to the attribute agreement analysis (AAA) method which consists of finding matches between colour standards and colour designations obtained by several appraisers. In the experiment, standards were obtained using a trichromatic colorimeter coupled to a computer program that implements the k nearest neighbour (k-NN) classification algorithm. In order to do the experiment, 276 soil samples were observed twice by four trained appraisers (2208 data records). The naïve count of matches across all the records in the dataset gave <5% of agreement for all three colour components Hue, Value and Chroma. The modified AAA criterion implemented in the study gave a clear increase in all indicators with values ranging from 82.2% to 100% in the agreement within appraisers, 39.5% in the agreement between appraisers, and 42.8% in the agreement of appraisers vs. standards. Results also show that users of the Munsell charts tend to mostly report correct Hues but higher Values and Chromas than true soil colours. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof CATENA es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Soil colour es_ES
dc.subject Munsell charts es_ES
dc.subject K-NN algorithm es_ES
dc.subject Attribute agreement analysis es_ES
dc.subject Colorimetry es_ES
dc.subject.classification ESTADISTICA E INVESTIGACION OPERATIVA es_ES
dc.subject.classification INGENIERIA CARTOGRAFICA, GEODESIA Y FOTOGRAMETRIA es_ES
dc.subject.classification PRODUCCION VEGETAL es_ES
dc.title Quantifying the uncertainty of soil colour measurements with Munsell charts using a modified attribute agreement analysis es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.catena.2018.06.027 es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Cartográfica Geodesia y Fotogrametría - Departament d'Enginyeria Cartogràfica, Geodèsia i Fotogrametria es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Estadística e Investigación Operativa Aplicadas y Calidad - Departament d'Estadística i Investigació Operativa Aplicades i Qualitat es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Producción Vegetal - Departament de Producció Vegetal es_ES
dc.description.bibliographicCitation Marqués-Mateu, Á.; Moreno-Ramón, H.; Balasch Parisi, S.; Ibañez Asensio, S. (2018). Quantifying the uncertainty of soil colour measurements with Munsell charts using a modified attribute agreement analysis. CATENA. 171:44-53. https://doi.org/10.1016/j.catena.2018.06.027 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.catena.2018.06.027 es_ES
dc.description.upvformatpinicio 44 es_ES
dc.description.upvformatpfin 53 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 171 es_ES
dc.relation.pasarela S\366093 es_ES


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