NCAVEO: Multi-angle sky spectra collected using a sky irradiance scanner
This dataset compromises measurements of the angular distribution of spectral sky radiance (400-1000nm), collected as part of the Network for Calibration and Validation of Earth Observation (NCAVEO) 2006 Field Campaign. Measurements were taken at frequent intervals on the 17th June 2006 using a new instrument designed by Andrew McGonigle. The instrument is based on a temperature-stabilised miniature spectroradiometer interfaced to a telescope that can be programmed to make zenithal scans of sky irradiance. Azimuthal motion of the whole instrument was provided by manual adjustment. A sampling interval of 18° in zenith and 30° in azimuth was used. All data were collected when the spectrometer was thermally stabilised to the same temperature (approximately 7.5°C).
Each sample of the sky irradiance distribution comprised two scans: one of the whole sky, and then a
second low-gain scan shortly afterwards, concentrating just on the region around the Sun. Scans were repeated twice, with different integration times to allow for the extreme differences in brightness of the Sun and the sky. For further information and details on the structure of the files see the dataset's metadata PDF in linked documentation.
Simple
- Date (Publication)
- 2008-10-07T15:23:26
- Date (Creation)
- 2008-10-07T15:23:26
- Identifier
- NERC Earth Observation Data Centre (NEODC) / d1880f3e928c223596160940f9b14582
- Maintenance and update frequency
- notPlanned Not planned
- Update scope
- dataset Dataset
- Keywords
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- NCAVEO
- SKY SPECTRA
- CHILBOLTON
- GEMET - INSPIRE themes, version 1.0
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- orthoimagery
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.
- Use constraints
- otherRestrictions Other restrictions
- Spatial representation type
- grid Grid
- Metadata language
- EnglishEnglish
- Topic category
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- Imagery base maps earth cover
- Begin date
- 2006-06-16T23:00:00
- End date
- 2006-06-16T23:00:00
- Unique resource identifier
- WGS 84
- Distribution format
-
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Images are in HDR format
()
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Images are in HDR format
()
- OnLine resource
-
CEDA Data Catalogue Page
Detail and access information for the resource
- OnLine resource
-
DOWNLOAD
Download Data
- OnLine resource
-
Metadata PDF
No further details.
- Hierarchy level
- dataset Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
- These data were provided to NEODC by university of Southampton, who carried out work to convert formats to NASA-Ames, and write metadata documents. The metadata documents describing the processing are archived alongside the data as PDF files.
- File identifier
- d1880f3e928c223596160940f9b14582 XML
- Metadata language
- EnglishEnglish
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8
- Parent identifier
- NCAVEO: Calibration and Validation Field Experiment: Aircraft and Ground Spectral Measurements, Atmospheric and Biophysical Data Collection 3013f5fdcb544848bb028cb1a31178e9
- Hierarchy level
- dataset Dataset
- Date stamp
- 2025-11-15T03:02:49
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
Overviews
Spatial extent
Provided by
NERC Data Catalogue Service