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Data · collection · 2021

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

Listed in NASA Earthdata CMR

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.

Description

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).

Links

Topics

Inferred from text
Atmospheric sciences 72% · Image 65%
Provenance · 1 source records, 15 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC2102891802-AU_AADC8 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[field].anzsrc:group:3701enrichment · NASA CMRtaxonomy-embedding@1.1.0title+keywords+description (72%)
concepts[instrument].gcmd_instrument:srsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/hydrogen-compounds/hydroxylsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-pressure/gravity-wavesource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-radiation/airglowsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[modality].local:modality:imageenrichment · NASA CMRkeyword-concept-rules@1.0.0title+description (65%)
concepts[platform].gcmd_platform:fixed-observation-stationssource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
license_textsource · NASA CMRconnector:nasa_cmr@1.0.0
publication_datesource · NASA CMRconnector:nasa_cmr@1.0.0
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0