Data

Scanning Radiometer observations of hydroxyl airglow over Davis, Antarctica from 2017-2021

Australian Antarctic Division
French, J. and Murphy, D.J. ; FRENCH, JOHN ; MURPHY, DAMIAN J.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.aad.gov.au/metadata/AAS_4157_Davis_UWOSCR_from_2017&rft.title=Scanning Radiometer observations of hydroxyl airglow over Davis, Antarctica from 2017-2021&rft.identifier=http://data.aad.gov.au/metadata/AAS_4157_Davis_UWOSCR_from_2017&rft.publisher=Australian Antarctic Data Centre&rft.description=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).Data collection was completed in 2021 and the instrument was returned to Australia.Progress Code: completedStatement: 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.&rft.creator=French, J. and Murphy, D.J. &rft.creator=FRENCH, JOHN &rft.creator=MURPHY, DAMIAN J. &rft.date=2021&rft.coverage=westlimit=77.652; southlimit=-68.694; eastlimit=78.294; northlimit=-68.459&rft.coverage=westlimit=77.652; southlimit=-68.694; eastlimit=78.294; northlimit=-68.459&rft.coverage=uplimit=90000; downlimit=83000&rft.coverage=uplimit=90000; downlimit=83000&rft_rights=This dataset is publicly available for download from the provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=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_Davis_UWOSCR_from_2017 when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > GRAVITY WAVE&rft_subject=EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HYDROGEN COMPOUNDS > HYDROXYL&rft_subject=EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > AIRGLOW&rft_subject=HYDROXYL AIRGLOW&rft_subject=SR > Scanning Radiometer&rft_subject=FIXED OBSERVATION STATIONS&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=AMD&rft_subject=CONTINENT > ANTARCTICA > Davis Station&rft_subject=VERTICAL LOCATION > MESOSPHERE&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
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CC-BY

Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

This dataset is publicly available for download from the provided URL.

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_Davis_UWOSCR_from_2017 when using these data.

This metadata record is publicly available.

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Full description

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).

Data collection was completed in 2021 and the instrument was returned to Australia.

Lineage

Progress Code: completed
Statement: 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.

Notes

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 time period: 2017-02-06 to 2021-10-27

This dataset is part of a larger collection

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78.294,-68.459 78.294,-68.694 77.652,-68.694 77.652,-68.459 78.294,-68.459

77.973,-68.5765

text: westlimit=77.652; southlimit=-68.694; eastlimit=78.294; northlimit=-68.459

text: uplimit=90000; downlimit=83000

Subjects
AMD | AMD/AU | CEOS | CONTINENT > ANTARCTICA > Davis Station | EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HYDROGEN COMPOUNDS > HYDROXYL | EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > GRAVITY WAVE | EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > AIRGLOW | FIXED OBSERVATION STATIONS | GEOGRAPHIC REGION > POLAR | HYDROXYL AIRGLOW | SR > Scanning Radiometer | VERTICAL LOCATION > MESOSPHERE | climatologyMeteorologyAtmosphere |

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Other Information
Download the dataset. (GET DATA > DIRECT DOWNLOAD)

uri : https://data.aad.gov.au/eds/5495/download

Public information for AAS project 4157 (PROJECT HOME PAGE)

uri : https://projects.aad.gov.au/search_projects_results.cfm?project_no=4157

Citation reference for this metadata record and dataset. (VIEW RELATED INFORMATION)

uri : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4157_Davis_UWOSCR_from_2017

Identifiers
  • global : AAS_4157_Davis_UWOSCR_from_2017