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dc.contributor.authorGregorio, Eduard
dc.contributor.authorRosell-Polo, Joan R.
dc.contributor.authorSanz Cortiella, Ricardo
dc.contributor.authorRocadenbosch Burillo, Francisco
dc.contributor.authorSolanelles, Francesc
dc.contributor.authorGarcerá, Cruz
dc.contributor.authorChueca, Patricia
dc.contributor.authorArnó, Jaume
dc.contributor.authorDel Moral, Ignacio
dc.contributor.authorMasip, Joan
dc.contributor.authorCamp, Ferran
dc.contributor.authorViana, Rafarl
dc.contributor.authorEscolà, Alexandre
dc.contributor.authorGràcia, Felip
dc.contributor.authorPlanas, Santiago
dc.contributor.authorMoltó, Enrique
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2014-03-06T18:30:56Z
dc.date.created2014-01
dc.date.issued2014-01
dc.identifier.citationGregorio, E. [et al.]. LIDAR as an alternative to passive collectors to measure pesticide spray drift. "Atmospheric environment", Gener 2014, vol. 82, p. 83-93.
dc.identifier.issn1352-2310
dc.identifier.urihttp://hdl.handle.net/2117/21902
dc.description.abstractPesticide spray drift entails a series of risks and costs in terms of human, animal and environmental well-being. A proper understanding of this phenomenon is essential to minimise these risks. However, most conventional methods used in drift measurement are based on point collectors which are unable to obtain information concerning the temporal or spatial evolution of the pesticide cloud. Such methods are also costly, labour-intensive, and require a considerable amount of time. The aim of this paper is to propose a method to measure the spray drift based on lidar (LIght Detection And Ranging) and to prove that it can be an alternative to passive collectors. An analytical model is proposed to relate the measurements obtained through passive collectors and those obtained with lidar systems considering several spray application and meteorological parameters. The model was tested through an experimental campaign involving multiple ground spray tests. A lidar system and two types of passive collectors (nylon strings and water-sensitive paper) were used simultaneously to measure the drift. The results showed for each test a high coefficient of determination (R2˜0.90) between the lidar signal and the tracer mass captured by the nylon strings. This coefficient decreased (R2=0.77) when all tests were considered together. Lidar measurements were also used to study the evolution of the pesticide cloud with high range (1.5m) and temporal resolution (1s) and to estimate its velocity. Furthermore, a very satisfactory adjustment (R2=0.89) was observed between the tracer mass collected by the nylon lines and the coverage on water-sensitive paper sheets. These results are in accordance with the proposed analytical model and allow the conclusion that the application and meteorological parameters can be considered spatially invariant for a given test but are not invariant for different tests.
dc.format.extent11 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Química del medi ambient
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica::Optoelectrònica::Làser
dc.subject.lcshPesticides
dc.subject.lcshOptoelectronics
dc.subject.otherAgriculture
dc.subject.otherDroplet
dc.subject.otherLight detection and ranging
dc.subject.otherRemote sensing
dc.subject.otherSprayer
dc.subject.otherTracer
dc.titleLIDAR as an alternative to passive collectors to measure pesticide spray drift
dc.typeArticle
dc.subject.lemacPlaguicides
dc.subject.lemacOptoelectrònica
dc.contributor.groupUniversitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
dc.identifier.doi10.1016/j.atmosenv.2013.09.028
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S1352231013007164#
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac13075890
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorGregorio, E.; Rosell-Polo, J.; Sanz, R.; Rocadenbosch, F.; Solanelles, F.; Garcerá, C.; Chueca, P.; Arnó, J.; Del Moral, I.; Masip, J.; Camp, F.; Viana, R.; Escolà, A.; Gràcia, F.; Planas, S.; Moltó, E.
local.citation.publicationNameAtmospheric environment
local.citation.volume82
local.citation.startingPage83
local.citation.endingPage93


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