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.

Date (Publication): 2008-10-07T15:23:26

Date (Creation): 2008-10-07T15:23:26

Citation identifier: https://catalogue.ceda.ac.uk/uuid/d1880f3e928c223596160940f9b14582

Citation identifier: NERC Earth Observation Data Centre (NEODC) / d1880f3e928c223596160940f9b14582

Point of contact

Organisation name	Electronic mail address	Role
Network for Calibration and Validation of EO data (NCAVEO)	unknown	Author
NERC Earth Observation Data Centre (NEODC)	neodc@rl.ac.uk	Custodian
NERC Earth Observation Data Centre (NEODC)	neodc@rl.ac.uk	Distributor
unknown	unknown	Principal investigator
NERC Earth Observation Data Centre (NEODC)	neodc@rl.ac.uk	pointofContact
NERC Earth Observation Data Centre (NEODC)	neodc@rl.ac.uk	Publisher

Maintenance and update frequency: Not planned

Update scope: Dataset

Keywords

NCAVEO
SKY SPECTRA
CHILBOLTON

GEMET - INSPIRE themes, version 1.0

orthoimagery

Access constraints: 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: Other restrictions

Other constraints: Under the following licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

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

Name	Version
Images are in HDR format

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC Earth Observation Data Centre (NEODC)		neodc@rl.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/d1880f3e928c223596160940f9b14582	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/neodc/ncaveo_field/data/Sky_spectra/	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/neodc/ncaveo_field/data/Sky_spectra/ncaveo_mcgonigle_metadata_10.pdf	Metadata PDF

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

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.

Metadata

File identifier: d1880f3e928c223596160940f9b14582 XML

Metadata language: English

Character set: UTF8

Parent identifier: NCAVEO: Calibration and Validation Field Experiment: Aircraft and Ground Spectral Measurements, Atmospheric and Biophysical Data Collection
3013f5fdcb544848bb028cb1a31178e9

Hierarchy level: Dataset

Date stamp: 2026-02-05T03:02:58

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC Earth Observation Data Centre (NEODC)		neodc@rl.ac.uk	Point of contact

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Metadata

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