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The boundary layer and its effects on canopy-level ozone and NOx mixing ratios.

dc.contributor.authorSeaman, Curtisen_US
dc.coverage.spatialUMBS Prophet Toweren_US
dc.coverage.spatialUMBS UV Siteen_US
dc.date.accessioned2007-06-14T23:12:38Z
dc.date.available2007-06-14T23:12:38Z
dc.date.issued2000en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/54905
dc.description.abstractPROPHET held a measurement intensive during the summer of 2000 at a forested site in rural northern Michigan whose purpose was to better understand the transport and fate of bith anthropogenic and biogenic emissions on atmospheric chemistry. as part of PROPHET, measurements of both the convective and nocturnal boundary layers were taken to determine the influence of each on the observed ozone and NOx mixing ratios. Backward transport trajectories at heights based on the maximum height of the convective boundary layer (CBL) were compared with trajectories produced by the method of Cooper et al, [2000] to determine if a difference in transport source region between air within the CBL and air in the free troposphere existed. The two methods were compared to determine which could better explain the observed ozone and NOx mixing ratios for two case studies. An exercise bike was used to launch tethered balloons that measured the nocturnal boundary layer (NBL) and showed that observed morning peaks in NOx appear to be correlated with the entrainment of polluted layers into the growing CBL. Ozone was found to depend on transport, NOx, sunlight and boundary layer dynamics.en_US
dc.format.extent3415969 bytes
dc.format.extent3144 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.relation.haspartGraphen_US
dc.relation.haspartMapen_US
dc.relation.haspartPhotographen_US
dc.subjectUndergraduate Research Exper.en_US
dc.subject.otherATMOSPHEREen_US
dc.subject.otherCHEMISTYRen_US
dc.subject.otherOXIDATIONen_US
dc.subject.otherAIRen_US
dc.subject.otherQUALITYen_US
dc.subject.otherNITROGENen_US
dc.subject.otherOXIDESen_US
dc.subject.otherPOLLUTIONen_US
dc.titleThe boundary layer and its effects on canopy-level ozone and NOx mixing ratios.en_US
dc.typeWorking Paperen_US
dc.subject.hlbsecondlevelNatural Resource and Environmenten_US
dc.subject.hlbtoplevelScienceen_US
dc.contributor.affiliationumBiological Station, University of Michiganen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/54905/1/3346.pdfen_US
dc.description.filedescriptionDescription of 3346.pdf : Access restricted to on-site users at the U-M Biological Station.en_US
dc.owningcollnameBiological Station, University of Michigan (UMBS)


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