Scanning Radiometer observations of hydroxyl airglow over Davis, Antarctica, 1999-2016Entry ID: AAS_4157_Davis_UWOSCR_1999-2016
Abstract: These are 1 minute sampled low resolution 'images' of the hydroxyl airglow layer over Davis station, Antarctica (68 degrees S,78 degrees E) derived using a scanning radiometer developed at the University of Western Ontario, Canada. The scans are a 16x16 pixel array and represent hydroxyl airglow variations in a small region (24x24 km) of the night sky in the zenith, approximately 87km above Davis. ... The instantaneous field-of-view of the 12cm aperture catadioptric telescope is 1 degrees, or a 1.5km radius field at the airglow layer height. Dwell time per 'pixel' is 0.22 sec. The instrument is sensitive in the 1.0 - 1.6 micron infrared region, which encompasses the bright hydroxyl (2-0), (3-1), (4-2) and (5-3) ro-vibrational bands. Observations are made in all cloud conditions between civil twilight (Sun less than 6 degrees below horizon) each year (between about the 6-Feb and 5-Nov at Davis).
Purpose: Its purpose is to measure the wavelengths, phase speeds, periods and propagation direction of small scale gravity waves passing through the hydroxyl airglow layer.
Data Set Citation
Dataset Originator/Creator: French, J. and Mulligan, F.J.
Dataset Title: Scanning Radiometer observations of hydroxyl airglow over Davis, Antarctica, 1999-2016
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2017-05-09
Dataset Publisher: Australian Antarctic Data Centre
Dataset DOI: doi:10.4225/15/59114b64b057fOnline Resource: https://data.aad.gov.au/metadata/records/AAS_4157_Davis_UWOSCR_1999...
Start Date: 1999-02-06Stop Date: 2016-11-08
Latitude Resolution: 1.5 Kilometre(s)
Longitude Resolution: 1.5 Kilometre(s)
Vertical Resolution: 7 Kilometre(s)
Temporal Resolution: 1 Minute(s)
Quality Data files are stored as nightly scan records in a frame-by-frame sequence. There are known problems with data from several nights being combined into one file. There are filename issues which occur each year when the start or stop time (determined by and almanac lookup) crosses the 0UT boundary (0UT is 7am local time at Davis). This boundary crossing occurs ~24-Mar and ~17-Sep each year. There are some significant data gaps due to instrument malfunction and a minor problem identified with the pointing direction of the telescope due to 'slop' in the x-y stage controller.
Access Constraints This dataset is publicly available.
Use Constraints Use of this data requires citation as AAS project 4157
This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4157... when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 922 MB
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 6232 3480
Fax: +61 3 6232 3496
Email: John.French at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Role: TECHNICAL CONTACT
Email: frank.mulligan at nuim.ie
National University of Ireland Maynooth, Co. Kildare, Ireland
Province or State: Co. Kildare
Extended Metadata Properties
(Click to view more)
Creation and Review Dates
DIF Creation Date: 2017-05-09
Last DIF Revision Date: 2019-04-02