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MRF A752 ACTO flight: Airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft

The Meteorological Research Flight (MRF) was a Met Office facility, which flew a well-instrumented C-130 Hercules aircraft for atmospheric research purposes.



This dataset contains airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft flight A752 for the Atmospheric Chemistry and Transport of Ozone in the upper troposphere-lower stratosphere (UTLS) (ACTO) campaign. The flight was located over the Irish sea.



The purpose of the flight was to investigate various filaments of air in the upper troposphere. These were to include uplifted, polluted air from Europe; dry ozone-rich air of stratospheric / upper tropospheric origins and high relative humidity air from the marine boundary layer.



The different filaments did appear to be found but further post-flight analysis will be required to confirm the origins. Polluted air was noted with higher NOx mixing ratios. A filament of dry ozone-rich air was also found but at a more southerly position than forecast: it was not investigated in detail but flown through on an approximately Northward leg (i.e. an across-filament run). High relative humidity air was observed at the northern end of the flight track, as forecast. This air had ozone mixing ratios, which were lower than those observed on any of the earlier flights (down to a minimum of around 35 ppb), quite consistent with air of clean marine origins.



One interesting feature that was observed, between the high-ozone/low relative humidity air and the low ozone/high relative humidity air, was an area of high relative humidity and relatively high ozone (around 65 ppb). This was clearly correlated with a small but notable increase in peroxide and a good peroxy radical signal: i.e. a region indicating notable ozone loss. This was not one of the regions forecast to be of particular interest but nevertheless it may be very interesting.

Simple

Date (Publication)
2006-12-10T03:09:18
Date (Creation)
2006-12-10T03:09:18
Citation identifier
https://catalogue.ceda.ac.uk/uuid/f944afec17bf493e92e347b26f35d477
Citation identifier
NCAS British Atmospheric Data Centre (NCAS BADC) / f944afec17bf493e92e347b26f35d477
Point of contact
Organisation name Individual name Electronic mail address Role

Met Office

enquiries@metoffice.gov.uk

Author

Unavailable

Barjat, Hannah

Unavailable

Author

Unavailable

Brough, Neil

Unavailable

Author

Unavailable

Penkett, Stuart A.

Unavailable

Author

Unavailable

Carney, R.

Unavailable

Author

Unavailable

Lewis, Alastair C.

Unavailable

Author

Unavailable

Methven, John

Unavailable

Author

Unavailable

McQuaid, Jim

Unavailable

Author

Unavailable

Phillips, G.J.

Unavailable

Author

Unavailable

Purvis, Ruth Mary

Unavailable

Author

Unavailable

Reeves, Claire E.

Unavailable

Author

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Custodian

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Distributor

Unavailable

Penkett, Stuart A.

Unavailable

Principal investigator

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

pointofContact

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Publisher
Maintenance and update frequency
Not planned
Update scope
Dataset
Keywords
  • UTLS

  • ACTO

  • Chemistry

  • temperature

  • pressure

  • wind

GEMET - INSPIRE themes, version 1.0

  • atmospheric conditions

Access constraints
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
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
Language
English
Topic category
  • Climatology, meteorology, atmosphere
N
S
E
W
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Begin date
2000-05-09T08:59:00
End date
2000-05-09T14:52:22
Unique resource identifier
WGS 84
Distribution format
Name Version

Data are ASCII formatted

Distributor contact
Organisation name Individual name Electronic mail address Role

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Distributor
OnLine resource
Protocol Linkage Name
https://catalogue.ceda.ac.uk/uuid/f944afec17bf493e92e347b26f35d477

CEDA Data Catalogue Page

OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/badc/ukmo-mrf/data/a752

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Hierarchy level
Dataset

Conformance result

Title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication)
2010-12-08
Statement

Data collected by instruments on-board the MRF C-130 during flight A752. Data acquired by BADC for archiving during the ACTO project.

Metadata

File identifier
f944afec17bf493e92e347b26f35d477 XML
Metadata language
English
Character set
UTF8
Parent identifier
UTLS-Ozone ACTO: Met Research Flight (MRF) C-130 Hercules aircraft atmospheric chemistry measurements and model output collection

7ca95b35d9e378c10343f2730a880549

Hierarchy level
Dataset
Date stamp
2026-02-16T03:10:12
Metadata standard name
UK GEMINI
Metadata standard version

2.3

Metadata author
Organisation name Individual name Electronic mail address Role

NCAS British Atmospheric Data Centre (NCAS BADC)

badc@rl.ac.uk

Point of contact
 
 

Overviews

Spatial extent

thumbnail

Keywords

GEMET - INSPIRE themes, version 1.0

atmospheric conditions


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