BGS Hosted Metadata
MRF A753 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 A753 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 further the various filaments of air that were sampled in flight A752. That is polluted air, having origins in the Mediterranean region; clean marine boundary layer air; ozone-rich, dry upper tropospheric air (from upper tropospheric jet) and also polluted boundary layer air, which has been uplifted from N. America. The region should be very structured having many different characteristics. The filaments of air were expected to be aligned zonally, sloping downwards to the North.
The flight was successful in that some of the filaments were found. However, the filaments were not found in the expected area. During a level hold at FL160 (for air traffic) and at the beginning of the first run at FL170 (NOxy calibrations), a dry ozone-rich filament was sampled. Later during the same run, air with moderately high ozone (around 70 ppb), high relative humidity and elevated peroxide was observed. At the subsequent level (FL240) ozone mixing ratios were generally lower (around 45-50 ppb) and the CN count was elevated (2500). However, during the turn at ca. 12:10 on FL240 (SE corner of the flight), another dry, ozone-rich filament was found. A further filament was expected to the North but this was not found. Towards the end of the flight further investigations were made at FL170, in order to try to find the first area of high ozone air (i.e. the air that was sampled during the first NOxy cal run). This air was found but interestingly, the ozone-rich dry air also correlated with high PAN and black carbon.
The instruments generally worked well. The FWVS was adjusted in flight and then found to maintain a good correlation with the GE. Neither the CO nor the HCHO were flown due to previously existing faults. There was a problem with the peroxide pump but this was not until the end of the flight.
Meteorology
The meteorological situation was dominated by high pressure, centred to the north of Scotland. The south of the country was in a more showery regime. However, not much cloud was observed during flight: small cumulus, broken stratocumulus and some cirrus, were observed at times.
Simple
- Date (Publication)
- 2006-12-10T03:09:18
- Date (Creation)
- 2006-12-10T03:09:18
- Citation identifier
- https://catalogue.ceda.ac.uk/uuid/1f7483bf05e843cc94ccdacc004ffe51
- Citation identifier
- NCAS British Atmospheric Data Centre (NCAS BADC) / 1f7483bf05e843cc94ccdacc004ffe51
- Point of contact
-
Organisation name Individual name Electronic mail address Role Met Office
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)
Custodian NCAS British Atmospheric Data Centre (NCAS BADC)
Distributor Unavailable
Penkett, Stuart A.
Unavailable
Principal investigator NCAS British Atmospheric Data Centre (NCAS BADC)
pointofContact NCAS British Atmospheric Data Centre (NCAS BADC)
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
- Spatial representation type
- Grid
- Language
- English
- Topic category
-
- Climatology, meteorology, atmosphere
))
- Begin date
- 2000-05-10T09:01:30
- End date
- 2000-05-10T14:57:00
- 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)
Distributor
- OnLine resource
-
Protocol Linkage Name https://catalogue.ceda.ac.uk/uuid/1f7483bf05e843cc94ccdacc004ffe51 CEDA Data Catalogue Page
- OnLine resource
-
Protocol Linkage Name http://data.ceda.ac.uk/badc/ukmo-mrf/data/a753 DOWNLOAD
- 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 A753. Data acquired by BADC for archiving during the ACTO project.
Metadata
- File identifier
- 1f7483bf05e843cc94ccdacc004ffe51 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
- 2026-03-01T03:10:18
- 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)
Point of contact
)))
