This website uses cookies. By continuing to use this website you are agreeing to our use of cookies. 



Polluted Troposphere TORCH1: University of Leeds OH and H2O Fluorecence Assay Gas Expansion (FAGE) measurments at Writtle College

Update Frequency: Not Planned
Latest Data Update: 2004-09-07
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2007-03-15
Download Stats: last 12 months
Dataset Size: 1 Files | 909KB


Tropospheric ORganic CHemistry Experiment (TORCH) was a Natural Environment Research Council (NERC) Polluted Troposphere Research Programme project (Round 1 - NER/T/S/2002/00145. Duration 2002 - 2005) led by A. Lewis, University of York. TORCH 1 took place in July and August 2003 at Writtle College, near Chelmsford, Essex.

This dataset contains OH and HO2 measurement by the Fluorecence Assay Gas Expansion (FAGE) at Writtle College.

Citable as:  Bloss, W.; Heard, D.E.; Lee, J.D.; Smith, S. (2007): Polluted Troposphere TORCH1: University of Leeds OH and H2O Fluorecence Assay Gas Expansion (FAGE) measurments at Writtle College. NCAS British Atmospheric Data Centre, date of citation.
Abbreviation: Not defined
Keywords: Polluted Troposphere, TORCH1, OH, H20, FAGE


Previous Info:
No news update for this record
Previously used record identifiers:
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data were collected at Writtle College, near Chelmsford, Essex between 27th July - 30th August 2003 and in April and May 2004 at Weybourne Atmospheric Observatory. Data files supplied as is to the BADC by the campaign participants.

Data Quality:
Some information may be available in the data files.
File Format:
Data are NASA Ames formatted

Related Documents

No documents related to this record were found.

Process overview

This dataset was generated by instruments deployed on platforms as listed below.
Output Description


  • units: molecule cm-3
  • names: HO2 concentration
  • units: HO2 concentration
  • names: HO2 error flag
  • long_name: OH
  • alt_names: ['Hydroxide']
  • names: Hydroxide
  • units: molecule cm-3
  • names: OH concentration
  • units: OH concentration
  • names: OH error flag

Co-ordinate Variables

Temporal Range
Start time:
End time:
Geographic Extent