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Radar rainfall: separating signal and noise fields to generate meaningful ensembles
dc.contributor.author | Pegram, Geoffrey |
dc.contributor.author | Llort Pavon, Xavier |
dc.contributor.author | Sempere Torres, Daniel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Hidràulica, Marítima i Ambiental |
dc.date.accessioned | 2011-08-23T08:47:03Z |
dc.date.available | 2011-08-23T08:47:03Z |
dc.date.created | 2011-05 |
dc.date.issued | 2011-05 |
dc.identifier.citation | Pegram, G.; Llort, X.; Sempere, D. Radar rainfall: separating signal and noise fields to generate meaningful ensembles. "Atmospheric research", Maig 2011, vol. 100, núm. 2-3, p. 226-236. |
dc.identifier.issn | 0169-8095 |
dc.identifier.uri | http://hdl.handle.net/2117/13090 |
dc.description.abstract | For the purpose of generating meaningful stochastic ensembles of radar estimates of rainfall, a relatively simple and objective method of separating a radar rainfall image into signal and noise is described. An alternative noise field, with the same spectrum as the original noise, can then be simulated and combined with the signal field of each successive image, to generate an ensemble member for performing sensitivity studies. The method is based on identifying the appropriate wavelength in the power spectrum which defines the variance threshold used to separate noise from signal. The algorithm is explained and figures illustrate the efficacy of the procedure. |
dc.format.extent | 11 p. |
dc.language.iso | eng |
dc.subject.lcsh | Probabilistic QPE |
dc.subject.lcsh | Radar ensamble |
dc.subject.lcsh | Radar QPE |
dc.subject.lcsh | Radar rainfall images |
dc.subject.lcsh | Variance inflation |
dc.title | Radar rainfall: separating signal and noise fields to generate meaningful ensembles |
dc.type | Article |
dc.subject.lemac | Radar en la meteorologia |
dc.contributor.group | Universitat Politècnica de Catalunya. CRAHI - Centre de Recerca Aplicada en Hidrometeorologia |
dc.identifier.doi | 10.1016/j.atmosres.2010.11.018 |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 5797283 |
dc.description.version | Postprint (published version) |
dc.relation.projectid | info:eu-repo/grantAgreement/EC/FP7/226555/EU/IMproving Preparedness and RIsk maNagemenT for flash floods and debriS flow events/IMPRINTS |
local.citation.author | Pegram, G.; Llort, X.; Sempere, D. |
local.citation.publicationName | Atmospheric research |
local.citation.volume | 100 |
local.citation.number | 2-3 |
local.citation.startingPage | 226 |
local.citation.endingPage | 236 |
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