Show simple item record

dc.contributor.authorvan Rheineck Leyssius HJ
dc.contributor.authorde Leeuw FAAM
dc.date.accessioned2013-06-13T23:24:18
dc.date.issued1990-05-31
dc.identifier222106001
dc.description.abstractA description of two procedures which are used at RIVM in forecasting photochemical smog episodes is presented. Both procedures lead to the estimation of daily average oxidant (O3 + NO2) concentrations. The procedure OXPRO provides prognoses for the concentrations of "today" and procedure ZOMEREPI for the concentrations of "today", "tomorrow" and "the day after tomorrow". The overall performance of both forecasting procedures is described for the summer of 1989 (May- October), as well as the performance of predicting exceedances of threshold values (exceedence of the pre-warnbing level, 63 ppb and of the warning level, 75 ppb daily average oxidant). Recommendations to improve both procedures are given. Changes in the procedures, necessary for the planned revision in the smog alarm system in The Nehterlands (from daily average oxidant concentrations to maximum hourly average O3 concentrations), are mentioned. The procedure versions which are operational in the summer of 1990 are described.<br>
dc.description.sponsorshipDGM/L
dc.format.extent60 p
dc.language.isonl
dc.publisherRijksinstituut voor Volksgezondheid en Milieu RIVM
dc.relation.ispartofRIVM Rapport 222106001
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/222106001.html
dc.subject15nl
dc.subjectozonnl
dc.subjectoxidantnl
dc.subjectzomersmognl
dc.subjectfotochemische smognl
dc.subjectepisodenl
dc.subjectsmogepisodenl
dc.titlePrognose van luchtkwaliteit: signalering van fotochemische smogepisodennl
dc.title.alternativeAn air quality forecast system for photochemical smog episodes.en
dc.typeReport
dc.date.updated2013-06-13T21:24:21Z
html.description.abstractA description of two procedures which are used at RIVM in forecasting photochemical smog episodes is presented. Both procedures lead to the estimation of daily average oxidant (O3 + NO2) concentrations. The procedure OXPRO provides prognoses for the concentrations of &quot;today&quot; and procedure ZOMEREPI for the concentrations of &quot;today&quot;, &quot;tomorrow&quot; and &quot;the day after tomorrow&quot;. The overall performance of both forecasting procedures is described for the summer of 1989 (May- October), as well as the performance of predicting exceedances of threshold values (exceedence of the pre-warnbing level, 63 ppb and of the warning level, 75 ppb daily average oxidant). Recommendations to improve both procedures are given. Changes in the procedures, necessary for the planned revision in the smog alarm system in The Nehterlands (from daily average oxidant concentrations to maximum hourly average O3 concentrations), are mentioned. The procedure versions which are operational in the summer of 1990 are described.&lt;br&gt;


This item appears in the following Collection(s)

Show simple item record