Gold Level L2 ratio of the column abundance of thermospheric O relative to N2
The GOLD daytime disk scan measurements are used to derive the TDISK data product, which is the effective disk neutral temperature at a height of approximately 150 km. TDISK is derived for each valid dayside Level 1C pixel for approximately 68 disk scan measurements performed per day by GOLD in nominal operation.\n\nAlgorithm heritage\n\nThe retrieval algorithm is an extension of those previously used to derive temperature from limb measurements of LBH intensity from the HITS instrument (Aksnes et al., [2006]; Krywonos et al. [2012]).\n\nAlgorithm theoretical basis\n\nGOLD measurements have a higher signal-to-noise ratio than HITS and a spectral range that includes more of the total N2 LBH emission (132 - 162 nm). Effective neutral temperatures near ~150 km altitude are retrieved by fitting the observed rotational structure of the N2 LBH bands using an optimal estimation routine. Retrieved parameters also include the upper vibrational level (v'=0-6) relative intensities (i.e. populations), a constant background, wavelength shift, and wavelength dispersion (constant term).\n\nReferences\n\nAksnes, A., R. Eastes, S. Budzien, and K. Dymond (2006), Neutral temperatures in the lower thermosphere from N2 Lyman-Birge-Hopfield (LBH) band profiles, Geophys. Res. Lett., 33, L15103, doi:10.1029/2006GL026255.\n\nKrywonos, A., D. J. Murray, R. W. Eastes, A. Aksnes, S. A. Budzien, and R. E. Daniell (2012), Remote sensing of neutral temperatures in the Earth's thermosphere using the Lyman-Birge-Hopfield bands of N2: Comparisons with satellite drag data, J. Geophys. Res., 117, A09311, doi:10.1029/2011JA017226.
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| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "026:00" ] |
| contactPoint |
{ "fn": "NASA Space Physics Data Facility", "@type": "vcard:Contact", "hasEmail": "mailto:NASA-SPDF-Support@nasa.onmicrosoft.com" } |
| description | The GOLD daytime disk scan measurements are used to derive the TDISK data product, which is the effective disk neutral temperature at a height of approximately 150 km. TDISK is derived for each valid dayside Level 1C pixel for approximately 68 disk scan measurements performed per day by GOLD in nominal operation.\n\nAlgorithm heritage\n\nThe retrieval algorithm is an extension of those previously used to derive temperature from limb measurements of LBH intensity from the HITS instrument (Aksnes et al., [2006]; Krywonos et al. [2012]).\n\nAlgorithm theoretical basis\n\nGOLD measurements have a higher signal-to-noise ratio than HITS and a spectral range that includes more of the total N2 LBH emission (132 - 162 nm). Effective neutral temperatures near ~150 km altitude are retrieved by fitting the observed rotational structure of the N2 LBH bands using an optimal estimation routine. Retrieved parameters also include the upper vibrational level (v'=0-6) relative intensities (i.e. populations), a constant background, wavelength shift, and wavelength dispersion (constant term).\n\nReferences\n\nAksnes, A., R. Eastes, S. Budzien, and K. Dymond (2006), Neutral temperatures in the lower thermosphere from N2 Lyman-Birge-Hopfield (LBH) band profiles, Geophys. Res. Lett., 33, L15103, doi:10.1029/2006GL026255.\n\nKrywonos, A., D. J. Murray, R. W. Eastes, A. Aksnes, S. A. Budzien, and R. E. Daniell (2012), Remote sensing of neutral temperatures in the Earth's thermosphere using the Lyman-Birge-Hopfield bands of N2: Comparisons with satellite drag data, J. Geophys. Res., 117, A09311, doi:10.1029/2011JA017226. |
| distribution |
[ { "@type": "dcat:Distribution", "format": "HTML", "mediaType": "text/html", "downloadURL": "https://doi.org/10.1007/s11214-017-0392-2" }, { "@type": "dcat:Distribution", "format": "BIN", "mediaType": "application/octet-stream", "downloadURL": "https://gold.cs.ucf.edu/" } ] |
| identifier | /SDE/SPASE_JSON/|deca73b3e6cd0bffec6e5042ee6026eb |
| keyword |
[ "gold", "imageintensity-o-relative-to-n2", "ses-14" ] |
| license | https://www.usa.gov/government-works |
| modified | 2026-06-22 |
| programCode |
[ "026:000" ] |
| publisher |
{ "name": "NASA Space Physics Data Facility (SPDF) Coordinated Data Analysis Web (CDAWeb) Data Services", "@type": "org:Organization" } |
| theme |
[ "Heliophysics" ] |
| title | Gold Level L2 ratio of the column abundance of thermospheric O relative to N2 |
