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APHH: Fluorescence Assay Gas Expansion measurements of OH, HO2 and RO2 made at the IAP-Beijing site during the winter and summer campaigns.

This dataset contains Fluorescence Assay Gas Expansion measurements of OH, HO2 and RO2 made at the Institute of Atmospheric Physics land station (IAP), Beijing site during the winter and summer APHH-Beijing campaigns for the Atmospheric Pollution & Human Health in a Chinese Megacity (APHH) programme.

The measurements were taken using the FAGE (Fluorescence Assay by Gas Expansion) technique which is a LIF (laser induced fluorescence) that measures on-resonance fluorescence at 308 nm. HO2 and RO2 are converted to OH via reaction with NO and NO + CO respectively.

The instrument is calibrated by photolysis of known concentration of water vapour at 185 nm to generate know concentrations of OH and HO2, same method used for HO2 but NO is injected into the flow to convert HO2 to OH. RO2 is calibrated by photolysing water vapur at 185 nm to generate OH but CH4 is added to convert OH to CH3O2, then CH3O2 is converted to OH using CO and NO. The calibration was preform every three days on campaign, and from this we can convert counts measured into concentration. The units for OH, HO2 and RO2 and there associated errors is molecules cm-3. The data has been filtered for instabilities in data collection including unstable pressure, unstable online, low laser power and not going online correctly. The data has been flagged for when the values were below limit of detection.

Simple

Date (Publication)
2018-07-26T15:52:44
Date (Creation)
2018-07-26T15:52:44
Identifier
https://catalogue.ceda.ac.uk/uuid/bb339ff791814fc6a8b9a93d339f5bc1
Identifier
Centre for Environmental Data Analysis (CEDA) / bb339ff791814fc6a8b9a93d339f5bc1
Author
  Unavailable - Slater, Eloise ( author )
Author
  Unavailable - Whalley, Lisa ( author )
Custodian
  Centre for Environmental Data Analysis (CEDA) - custodian
Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom
01235446432
Owner
  Centre for Environmental Data Analysis (CEDA) - data_owner
Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom
01235446432
Distributor
  Centre for Environmental Data Analysis (CEDA) - distributor
Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom
01235446432
Principal investigator
  Unavailable - Bloss, William ( principal_investigator )
Principal investigator
  Unavailable - Harrison, Roy ( principal_investigator )
Principal investigator
  Unavailable - Kelly, FJ ( principal_investigator )
Principal investigator
  Unavailable - Lewis, Alastair C. ( principal_investigator )
Principal investigator
  Unavailable - Loh, M ( principal_investigator )
Principal investigator
  Unavailable - Nemitz, E. ( principal_investigator )
Principal investigator
  Unavailable - Sokhi, R. ( principal_investigator )
pointofContact
  Centre for Environmental Data Analysis (CEDA) - point_of_contact
Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom
01235446432
Publisher
  Centre for Environmental Data Analysis (CEDA) - publisher
Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom
01235446432
Maintenance and update frequency
unknown Unknown
Update scope
dataset Dataset
Keywords
  • OH
  • HO2
  • RO2
  • China
  • pollution
  • APHH
GEMET - INSPIRE themes, version 1.0
  • atmospheric conditions
Access constraints
otherRestrictions Other restrictions
Other constraints
Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.
Use constraints
otherRestrictions Other restrictions
Other constraints
Under the following licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Spatial representation type
grid Grid
Metadata language
EnglishEnglish
Topic category
  • Climatology, meteorology, atmosphere
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Begin date
2016-11-08T00:00:00
End date
2017-06-25T22:59:59
Unique resource identifier
WGS 84
Distribution format
  • Data are NASA Ames formatted ()

Distributor
  Centre for Environmental Data Analysis (CEDA) - Data Center Contact
Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom
01235446432
OnLine resource
CEDA Data Catalogue Page

Detail and access information for the resource

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Project Webpage at University of Birmingham

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dataset Dataset

Conformance result

Date (Publication)
2010-12-08
Statement
Data produced by Atmospheric Pollution & Human Health (APHH) project participants at University of Leeds and uploaded to Centre for Environmental Data Anaylsis (CEDA) archive.
File identifier
bb339ff791814fc6a8b9a93d339f5bc1 XML
Metadata language
EnglishEnglish
Character set
8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8
Parent identifier
APHH: Atmospheric measurements and model results for the Atmospheric Pollution & Human Health in a Chinese Megacity 648246d2bdc7460b8159a8f9daee7844
Hierarchy level
dataset Dataset
Date stamp
2025-11-15T03:15:57
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  Centre for Environmental Data Analysis (CEDA)
Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom
01235446432
 
 

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Spatial extent

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Keywords

GEMET - INSPIRE themes, version 1.0
atmospheric conditions

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