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Data · collection · 2020

Davis Utah State University infrared camera gravity wave parameters - 2012-2013

Listed in NASA Earthdata CMR

This dataset contains atmospheric gravity-wave parameters obtained from images of the infrared emissions from the Meinel band from the night sky above Davis, Antarctica.

Description

The camera that provides the images runs continuously during darkness, over intervals set by a yearly almanac of start and stop times. Images are collected and stored approximately every ten seconds.

They record the emission intensity over much of the sky. Continuous daylight through summer limits the observation interval to between February and October. The camera was first installed in the summer of 2011/12 and started operation 2012.

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The gravity wave parameters described here were obtained with the following procedure: - manual identification of clear sky intervals in the image data, - star removal, flat fielding, and projection of the images onto a linear-scale geographic grid, - application of a two dimensional FFT algorithm to extract the parameters of wavelike features from image sequences. More information on this can be obtained from Garcia et al. (1997) and the project investigators.

The gravity wave parameters obtained are horizontal wavelength, wave propagation direction and wave horizontal phase velocity. Currently only two years worth of processed data are available - 2012, 2013. References: Garcia, Taylor and Kelley, Two dimensional spectral analysis of mesospheric airglow image data, Applied Optics, 36, 7374-7385 (1997)

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Topics

Inferred from text
Image 75%
Provenance · 1 source records, 13 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC1929062040-AU_AADC8 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:camerassource · 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[modality].local:modality:imageenrichment · NASA CMRkeyword-concept-rules@1.0.0title+description (75%)
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