Publikation:
Regional and intercontinental pollution signatures on modeled and measured PAN at northern mid-latitude mountain sites

Kurzanzeige
dc.contributor.authorFiore, Arlene M.
dc.contributor.authorFischer, Emily V.
dc.contributor.authorDeola, Shubha Pandey
dc.contributor.authorFischer, Bernd
dc.contributor.authorRies, Ludwig
dc.date.accessioned2024-06-16T14:53:52Z
dc.date.available2024-06-16T14:53:52Z
dc.date.issued2018
dc.description.abstractPeroxy acetyl nitrate (PAN) is the most important reservoir species for nitrogen oxides (NOx) in the remote troposphere. Upon decomposition in remote regions, PAN promotes efficient ozone production. We evaluate monthly mean PAN abundances from global chemical transport model 48 simulations (HTAP1) for 2001 with measurements from five northern mid-latitude mountain sites (four European and one North American). The multi-model mean generally captures the observed monthly mean PAN but individual models simulate a factor of ~4-8 range in monthly abundances. We quantify PAN source-receptor relationships at the measurement sites with sensitivity simulations that decrease regional anthropogenic emissions of PAN (and ozone) precursors by 20% from North America (NA), Europe (EU), and East Asia (EA). The HTAP1 models attribute more of the observed PAN at Jungfraujoch (Switzerland) to emissions in NA and EA, and less to EU, than a prior trajectory-based estimate. The trajectory-based and modeling approaches agree that EU emissions play a role in the observed springtime PAN maximum at Jungfraujoch. The signal from anthropogenic emissions on PAN is strongest at Jungfraujoch and Mount Bachelor (Oregon, U.S.A.) during April. In this month, PAN source-receptor relationships correlate both with model differences in regional anthropogenic volatile organic compound (AVOC) emissions and with ozone source-receptor relationships. PAN observations at mountaintop sites can thus provide key information for evaluating models, including links between PAN and ozone production and source-receptor relationships. Establishing routine, long-term, mountaintop measurements is essential given the large observed interannual variability in PAN. © 2018 Author(s).en
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-65
dc.identifier.urihttps://openumwelt.de/handle/123456789/5553
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleRegional and intercontinental pollution signatures on modeled and measured PAN at northern mid-latitude mountain sites
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleAtmospheric Chemistry and Physics Discussions
local.bibliographicCitation.originalDOI10.5194/acp-2018-90
local.bibliographicCitation.volume(2018), 1 Onlineressource (38 Seiten)
local.collectionAufsätze
local.contributor.authorId(DE-588)1141159287
local.contributor.authorId02181740
local.contributor.authorId02181741
local.contributor.authorId02181779
local.contributor.authorId00373071
local.identifier.catalogId02463903
local.ingest.leader05693naa a2200000uu 4500
local.jointTitleREGIONAL AND INTERCONTINENTAL POLLUTION SIGNATURES ON MODELED AND MEASURED PAN AT NORTHERN MIDLATITUDE MOUNTAIN SITES
local.sourcecatalog
local.staffPublicationtrue
relation.isAuthorOfPublication648318e1-2475-4ddd-90a4-0efbf6992e33
relation.isAuthorOfPublication.latestForDiscovery648318e1-2475-4ddd-90a4-0efbf6992e33
Dateien
Sammlungen
Aufsätze