Summertime total OH reactivity measurements from boreal forest during HUMPPA-COPEC 2010

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • AC Nölscher
  • J Williams
  • V Sinha
  • T Custer
  • W Song
  • AM Johnson
  • R Axinte
  • H Bozem
  • H Fischer
  • N Pouvesle
  • G Phillips
  • JN Crowley
  • P Rantala
  • J Rinne
  • M Kulmala
  • D Gonzales
  • J Valverde-Canossa
  • Alexander Vogel
  • Thorsten Hoffmann
  • HG Ouwersloot
  • J Vilà-Guerau de Arellano
  • J Lelieveld
Sammlungen
  • metadata
ISSN
1680-7324
Ausgabe der Veröffentlichung
17
Zeitschrift
Atmospheric chemistry and physics
Schlüsselwörter
  • 540 Chemie
  • 540 Chemistry and allied sciences
Sprache
eng
Paginierung
Seiten: 8257 - 8270
Datum der Veröffentlichung
2012
Herausgeber
EGU
Herausgeber URL
http://dx.doi.org/10.5194/acp-12-8257-2012
Datum der Datenerfassung
2020
Datum, an dem der Datensatz öffentlich gemacht wurde
2020
Zugang
Public
Titel
Summertime total OH reactivity measurements from boreal forest during HUMPPA-COPEC 2010
Ausgabe der Zeitschrift
12

Datenquelle: METADATA.UB

Andere Metadatenquellen:
Autoren
  • AC Noelscher
  • J Williams
  • V Sinha
  • T Custer
  • W Song
  • AM Johnson
  • R Axinte
  • H Bozem
  • H Fischer
  • N Pouvesle
  • G Phillips
  • JN Crowley
  • P Rantala
  • J Rinne
  • M Kulmala
  • D Gonzales
  • J Valverde-Canossa
  • A Vogel
  • T Hoffmann
  • HG Ouwersloot
  • J Vila-Guerau de Arellano
  • J Lelieveld
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000308753800024&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.5194/acp-12-8257-2012
Externe Identifier
  • Clarivate Analytics Document Solution ID: 005MF
ISSN
1680-7316
Ausgabe der Veröffentlichung
17
Zeitschrift
ATMOSPHERIC CHEMISTRY AND PHYSICS
Paginierung
8257 - 8270
Datum der Veröffentlichung
2012
Status
Published
Titel
Summertime total OH reactivity measurements from boreal forest during HUMPPA-COPEC 2010
Sub types
  • Article
Ausgabe der Zeitschrift
12

Datenquelle: Web of Science (Lite)

Abstract
<jats:p>Abstract. Ambient total OH reactivity was measured at the Finnish boreal forest station SMEAR II in Hyytiälä (Latitude 61°51' N; Longitude 24°17' E) in July and August 2010 using the Comparative Reactivity Method (CRM). The CRM – total OH reactivity method – is a direct, in-situ determination of the total loss rate of hydroxyl radicals (OH) caused by all reactive species in air. During the intensive field campaign HUMPPA-COPEC 2010 (Hyytiälä United Measurements of Photochemistry and Particles in Air – Comprehensive Organic Precursor Emission and Concentration study) the total OH reactivity was monitored both inside (18 m) and directly above the forest canopy (24 m) for the first time. The comparison between these two total OH reactivity measurements, absolute values and the temporal variation have been analyzed here. Stable boundary layer conditions during night and turbulent mixing in the daytime induced low and high short-term variability, respectively. The impact on total OH reactivity from biogenic emissions and associated photochemical products was measured under "normal" and "stressed" (i.e. prolonged high temperature) conditions. The advection of biomass burning emissions to the site caused a marked change in the total OH reactivity vertical profile. By comparing the OH reactivity contribution from individually measured compounds and the directly measured total OH reactivity, the size of any unaccounted for or "missing" sink can be deduced for various atmospheric influences. For "normal" boreal conditions a missing OH reactivity of 58%, whereas for "stressed" boreal conditions a missing OH reactivity of 89% was determined. Various sources of not quantified OH reactive species are proposed as possible explanation for the high missing OH reactivity. </jats:p>
Autoren
  • AC Nölscher
  • J Williams
  • V Sinha
  • T Custer
  • W Song
  • AM Johnson
  • R Axinte
  • H Bozem
  • H Fischer
  • N Pouvesle
  • G Phillips
  • JN Crowley
  • P Rantala
  • J Rinne
  • M Kulmala
  • D Gonzales
  • J Valverde-Canossa
  • A Vogel
  • T Hoffmann
  • HG Ouwersloot
  • J Vilà-Guerau de Arellano
  • J Lelieveld
DOI
10.5194/acp-12-8257-2012
eISSN
1680-7324
Ausgabe der Veröffentlichung
17
Zeitschrift
Atmospheric Chemistry and Physics
Sprache
en
Online publication date
2012
Paginierung
8257 - 8270
Status
Published online
Herausgeber
Copernicus GmbH
Herausgeber URL
http://dx.doi.org/10.5194/acp-12-8257-2012
Datum der Datenerfassung
2021
Titel
Summertime total OH reactivity measurements from boreal forest during HUMPPA-COPEC 2010
Ausgabe der Zeitschrift
12

Datenquelle: Crossref

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