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Time series 2D simulation for narrow field of view LW radiometers in order to optimize sampling frequency and zenith angle

dc.contributor.authorBesnard, T.
dc.contributor.authorPavlaud, M.
dc.contributor.authorCollet, M.
dc.contributor.authorLong, C.N.
dc.contributor.authorGillotay, D.
dc.contributor.authorBerger, L.
dc.contributor.authorZanghi, F.
dc.contributor.authorFerreira Da Silva, T.
dc.contributor.authorDupont, J.C.
dc.date2005
dc.date.accessioned2016-12-07T10:36:07Z
dc.date.available2016-12-07T10:36:07Z
dc.identifier.isbn9780819459992
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/4648
dc.descriptionSince more than a decade, several instruments using narrow field of view radiometers and applying time series, snapshots and scanning techniques have been developed to monitor down welling long wave radiations and by consequence cloud cover intensity. For regular monitoring of cloud cover, in atmospheric measurement networks the time series technique has already been used with ceilometric data and now with narrow field of view (NFOV) radiometers. In order to determine the best set of data for sampling frequency, zenith angle and also field of view, we built a numerical simulator calculating interactions between a measurement grid in the approximation of the parallel plan model and binarized cloud fields generated by the "Larges Eddies Simulation" method. We will present results obtained with various sets of radiometers with different geometries facing to cloud fields simulating a wide range of broken clouds conditions. As a conclusion, we provide recommendations for positioning and feature of NFOV radiometers and finally we will discuss potential improvements of these simulation techniques.
dc.languageeng
dc.titleTime series 2D simulation for narrow field of view LW radiometers in order to optimize sampling frequency and zenith angle
dc.typeConference
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeClouds
dc.subject.freeEarth atmosphere
dc.subject.freeNatural frequencies
dc.subject.freeRadiometers
dc.subject.freeSampling
dc.subject.freeBrightness temperature
dc.subject.freeCeiling
dc.subject.freeCloud fields
dc.subject.freeTime series
dc.subject.freeTime series analysis
dc.source.titleProceedings of SPIE: Remote Sensing of Clouds and the Atmosphere X
dc.source.volume5979
dc.source.page59791J
Orfeo.peerreviewedNo
dc.identifier.doi10.1117/12.633343
dc.identifier.scopus2-s2.0-33244493595
dc.source.editorSchäfer, K.
dc.source.editorComerón, A.T.
dc.source.editorSlusser, J.R.
dc.source.editorPicard, R.H.
dc.source.editorCarleer, M.R.
dc.source.editorSifakis, N.


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