2f3b6b38b25d408db4cb8e6fd06d8aeb
English
8-bit variable size UCS Transfer Format, based on ISO/IEC 10646
7ca95b35d9e378c10343f2730a880549
dataset
NCAS British Atmospheric Data Centre (NCAS BADC)
+44(0)1235 446432
British Atmospheric Data Centre
STFC Rutherford Appleton Laboratory
Harwell Oxford
OX11 0QX
UK
badc@rl.ac.uk
pointOfContact
2024-03-29T00:38:53
UK GEMINI
2.3
WGS 84
MRF A751 ACTO flight: Airborne atmospheric and chemistry measurements taken on board the Met Office C-130 Hercules aircraft
2006-12-10T03:09:18
publication
2006-12-10T03:09:18
creation
http://catalogue.ceda.ac.uk/uuid/2f3b6b38b25d408db4cb8e6fd06d8aeb
2f3b6b38b25d408db4cb8e6fd06d8aeb
NCAS British Atmospheric Data Centre (NCAS BADC)
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 A751 for the Atmospheric Chemistry and Transport of Ozone in the upper troposphere-lower stratosphere (UTLS) (ACTO) campaign. The flight was a transit from Boscombe to Prestwick.
The main purpose was to investigate a filament of air (with UTLS origins), which had been apparent on the PV forecasts from ECMWF (interpretation by John Methven). The flight was very successful. In particular, the filament of air was located with relative ease. The filament was initially traversed during the ascent to the first level run. The filament position was then confirmed from the water vapour image, details of which were sent to the aircraft via satcom. A rectangular flight plan was carried out at FL230, with legs approximately along the axis of the filament, across the filament and along the outside of the filament. A triangular pattern was flown at the subsequent level, with the final leg running at a slight angle across the filament, such that the edge of the filament was crossed slowly.
The filament was apparent in many of the measurements: low humidity, low CN, high ozone (up to around 100ppb), higher PCASP aerosol and high NOy. Other features were apparent near the filament region including air parcels having some evidence of more recent pollution (higher NO and NO2). Hence, further investigation will be required to understand the origins of these parcels. A number of flask samples (37) were also collected for subsequent analysis,
There were a few instrument errors prior to flight. The CO and the HCHO were both unserviceable and the FWVS was not fitted. It is hoped that some of the other parameters may be used as tropospheric tracers instead of CO (aerosols, Leeds GC hydrocarbons, bottle sample-hydrocarbons (including methane), bottle sample GC-MS analysis and possible bottle sample CO).
Meteorology
The meteorological situation was dominated by a large ridge of high pressure, stretching from the Azores to Scandinavia. A weak warm front was analysed on the midday Met. Office Chart, oriented from SW to NE, stretching from 50N, 15W to Scandinavia. There was little cloud associated with the front: mainly a line of stratocumulus with some embedded cumulus (the largest having tops at 25,000ft). The main features appeared to be marked by a gradient in humidity, which was apparent on the water vapour satellite image. "
Met Office
author
0370 900 0100
Met Office
FitzRoy Road
Exeter
EX1 3PB
enquiries@metoffice.gov.uk
author
Barjat, Hannah
Unavailable
author
Unavailable
author
Brough, Neil
Unavailable
author
Unavailable
author
Penkett, Stuart A.
Unavailable
author
Unavailable
author
Carney, R.
Unavailable
author
Unavailable
author
Lewis, Alastair C.
Unavailable
author
Unavailable
author
Methven, John
Unavailable
author
Unavailable
author
McQuaid, Jim
Unavailable
author
Unavailable
author
Phillips, G.J.
Unavailable
author
Unavailable
author
Purvis, Ruth Mary
Unavailable
author
Unavailable
author
Reeves, Claire E.
Unavailable
author
Unavailable
author
NCAS British Atmospheric Data Centre (NCAS BADC)
custodian
+44(0)1235 446432
British Atmospheric Data Centre
STFC Rutherford Appleton Laboratory
Harwell Oxford
OX11 0QX
UK
badc@rl.ac.uk
custodian
NCAS British Atmospheric Data Centre (NCAS BADC)
distributor
+44(0)1235 446432
British Atmospheric Data Centre
STFC Rutherford Appleton Laboratory
Harwell Oxford
OX11 0QX
UK
badc@rl.ac.uk
distributor
Penkett, Stuart A.
Unavailable
principal_investigator
Unavailable
principalInvestigator
NCAS British Atmospheric Data Centre (NCAS BADC)
point_of_contact
+44(0)1235 446432
British Atmospheric Data Centre
STFC Rutherford Appleton Laboratory
Harwell Oxford
OX11 0QX
UK
badc@rl.ac.uk
pointofContact
NCAS British Atmospheric Data Centre (NCAS BADC)
publisher
+44(0)1235 446432
British Atmospheric Data Centre
STFC Rutherford Appleton Laboratory
Harwell Oxford
OX11 0QX
UK
badc@rl.ac.uk
publisher
notPlanned
dataset
UTLS
ACTO
Chemistry
temperature
pressure
wind
atmospheric conditions
theme
GEMET - INSPIRE themes, version 1.0
2008-06-01
publication
otherRestrictions
Public data: access to these data is available to both registered and non-registered users.
otherRestrictions
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ . When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
grid
English
climatologyMeteorologyAtmosphere
-4.6142
-1.837
50.7247
55.508
2000-05-07T10:41:30
2000-05-07T15:00:00
Data are ASCII formatted
NCAS British Atmospheric Data Centre (NCAS BADC)
Data Center Contact
+44(0)1235 446432
British Atmospheric Data Centre
STFC Rutherford Appleton Laboratory
Harwell Oxford
OX11 0QX
UK
badc@rl.ac.uk
distributor
http://catalogue.ceda.ac.uk/uuid/2f3b6b38b25d408db4cb8e6fd06d8aeb
CEDA Data Catalogue Page
Detail and access information for the resource
information
http://data.ceda.ac.uk/badc/ukmo-mrf/data/a751
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dataset
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
2010-12-08
Data collected by instruments on-board the MRF C-130 during flight A751. Data acquired by BADC for archiving during the ACTO project.