University of Bath: Ascension Island Skiymet Meteor Radar data (2005-2012)
The University of Bath's Ascension Island meteor radar (7.9 S, 14.4 W) is an all-sky VHF (Very High Frequency) meteor radar commercially produced Skiymet system. The system was operational from October 2001 to June 2011, albeit with some gaps in the data coverage, in support of a number of research projects - see linked Project records for further details. Meteor detection and derived wind data from this instrument were collected in support of a number of research projects - see linked Project records for further details.
The radar detects radio scatter from the ionised trails of individual meteors drifting with the winds of the upper mesosphere, mesopause and lower thermosphere. A low-gain transmitter antenna is used to provide broad illumination of the sky. An array of five receiver antennas act as an interferometer to determine the azimuth and zenith angles of individual meteor echoes. Doppler measurements from each meteor determine the radial drift velocity and the meteor is assumed to be a passive tracer of atmospheric flow. The radar typically detects of order a few thousand meteors per day. These observations can be used to determine zonal and meridional winds in the mesosphere, mesopause and lower thermosphere at heights of about 80 – 100 km and with height and time resolutions of ~ 3 km and 2 hours.
The radar produces daily “meteor position data” data files (mpd files) recording the details of each individual meteor echo. In normal operation a few thousand individual meteors are detected per day. See parameter list for details of available data.
Recordings are made for each individual meteor detected allowing measurements of zonal and meridional wind speeds in the mesosphere and lower thermosphere to be obtained. Meteor count rates vary diurnally and with season, but are usually up to a few thousand meteors per day.
INSPIRE
Identification
- File identifier
- 0d05cf74e17f49c2b7c5cd02faa59291 XML
- Resource type
- dataset
Online resource
Resource identifier
- Metadata Language
- English (en)
- Spatial representation type
- grid
Encoding
- Format
- Data are ASCII formatted. See documentation for details.
Projection
- code
- WGS 84
Classification of data and services
- Topic category
-
- Climatology, meteorology, atmosphere
Classification of data and services
Coupled resource
Coupled resource
Classification of data and services
Coupled resource
Coupled resource
Keywords
- GEMET - INSPIRE themes, version 1.0 ()
-
- atmospheric conditions
Other keywords
- Keywords
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- meteor radar
- mesosphere
Geographic coverage
Temporal reference
Temporal extent
Temporal extent
- Dataset Reference Date ()
- 2019-06-03T13:21:23
- Dataset Reference Date ()
- 2019-06-03T13:21:23
Quality and validity
- Lineage
- Data from the instrument are produced by the instrument's SKiYCORR analysis programme before being collected by Genesis Software, the instrument manufacturer, who then supplied the data to the Centre for Environmental Data Analysis (CEDA) for long-term archiving.
Conformity
Conformity
Conformity
Conformity
Conformity
Conformity
Restrictions on access and use
Responsible organization (s)
Contact for the resource
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Centre for Environmental Data Analysis (CEDA)
- support@ceda.ac.uk
- Organisation name
- Natural Environment Research Council (NERC)
- unknown
- Organisation name
- Centre for Environmental Data Analysis (CEDA)
- support@ceda.ac.uk
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Centre for Environmental Data Analysis (CEDA)
- support@ceda.ac.uk
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Centre for Environmental Data Analysis (CEDA)
- support@ceda.ac.uk
Responsible organization (s)
Contact for the resource
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Centre for Environmental Data Analysis (CEDA)
- support@ceda.ac.uk
- Organisation name
- Natural Environment Research Council (NERC)
- unknown
- Organisation name
- Centre for Environmental Data Analysis (CEDA)
- support@ceda.ac.uk
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Centre for Environmental Data Analysis (CEDA)
- support@ceda.ac.uk
- Organisation name
- Unavailable
- Unavailable
- Organisation name
- Centre for Environmental Data Analysis (CEDA)
- support@ceda.ac.uk
Metadata information
Contact for the metadata
- Organisation name
- Centre for Environmental Data Analysis (CEDA)
- support@ceda.ac.uk
- Metadata Date
- 2024-03-29T00:57:03
- Metadata Language
- English (en)