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Empirical study of variation in lidar point density over different land covers

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Empirical study of variation in lidar point density over different land covers

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dc.contributor.author Balsa Barreiro, José es_ES
dc.contributor.author Lerma García, José Luis es_ES
dc.date.accessioned 2015-12-30T09:19:47Z
dc.date.available 2015-12-30T09:19:47Z
dc.date.issued 2014-04
dc.identifier.issn 0143-1161
dc.identifier.uri http://hdl.handle.net/10251/59299
dc.description This is an author's accepted manuscript of an article published in International Journal of Remote Sensing; Volume 35, Issue 9, 2014 ; copyright Taylor & Francis, available online at: http://www.tandfonline.com/doi/abs/10.1080/01431161.2014.903355 es_ES
dc.description.abstract Point density in airborne lidar surveys is one of the key parameters that influence not only the accuracy of generated DSM/DEM but also processing and costs. Point density variations occur (independently of keeping constant flight parameters) throughout the survey depending on the topography, the land cover, and the laser scanning mechanism. In this article, variations in point density across different land covers are analysed with an airborne oscillating mirror laser scanner. A wide group of samples from the different land covers is taken from single flight strips over level ground in order to minimize the effect of topography. The influence of the oscillating mirror laser scanner system is also minimized considering points along the central swath area. Mean values for each land cover are established regarding ground point density and first pulse returns. Significant differences in both raw points as well as on-the-ground points are registered, mainly due to the presence of features over the ground and the degree of opacity thereof. Regarding ground points, the relative differences between the two software packages used are 5% approximately. Significant point density differences can be found among the six analysed land covers. Furthermore, extrapolated pulse rate increments are presented to fulfil lidar specifications that neglect land cover as an input parameter to satisfy ground point density values, namely in non-overlapping areas. es_ES
dc.language Inglés es_ES
dc.publisher Taylor & Francis: STM, Behavioural Science and Public Health Titles es_ES
dc.relation.ispartof International Journal of Remote Sensing es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject LIDAR es_ES
dc.subject Point density es_ES
dc.subject Land covers es_ES
dc.subject.classification INGENIERIA CARTOGRAFICA, GEODESIA Y FOTOGRAMETRIA es_ES
dc.title Empirical study of variation in lidar point density over different land covers es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1080/01431161.2014.903355
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.description.bibliographicCitation Balsa Barreiro, J.; Lerma García, JL. (2014). Empirical study of variation in lidar point density over different land covers. International Journal of Remote Sensing. 35(9):3372-3383. doi:10.1080/01431161.2014.903355 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1080/01431161.2014.903355 es_ES
dc.description.upvformatpinicio 3372 es_ES
dc.description.upvformatpfin 3383 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 35 es_ES
dc.description.issue 9 es_ES
dc.relation.senia 281320 es_ES
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