NERC Data Catalogue Service
NCAVEO: Leaf Area Index measurements collected using a Delta-T SunScan at the Brockley, Rickyard and Fairpiece field sites near Chilbolton
Leaf Area Index (LAI) measurements were collected using a Delta-T SunScan as part of the Network for Calibration and Validation of Earth Observation data (NCAVEO) 2006 Field Campaign. Data were collected from the following experiment fields: Rickyard (winter wheat), Fairpiece (winter oats) and Brockley (spring barley). The parameters required by the SunData program were set as follows:
• Leaf Angle Distribution Parameter = 1.0
• Leaf Absorption Parameter = 0.85
Five sample points were located within tramlines in each field and their position determined using dGPS. Five 10 metre long transects were set-up, centred on each of these points and marked with coloured flags, marking the longitudinal extent of each Elementary Sampling Unit (ESU). The ‘width’ of the area sampled within the crop was determined by the reach of the instrument, around 1 metre. The geographic co-ordinates in the data file have been calculated to allow for the offset of sample measurements from the tramlines, and these should be taken as the definitive locations of the individual samples. SunScan measurements were made every metre along a 30 m transect, the central 10 m length of which coincided with the area between the coloured flags. Each of the extended ESUs was sampled in the same order in each field: Red, Green, Blue, Yellow, White flag, following a path along the tramlines shown in Figure 1. This gave a total of 165 LAI measurements per field. The geographic co-ordinates of each measurement were recorded and represented alongside the measured variables.
For further details see the dataset's metadata document in linked documentation.
Default
Identification info
- Metadata Language
- English (en)
- Dataset Reference Date ()
- 2007-10-17T15:10:13
- Dataset Reference Date ()
- 2007-10-17T15:10:13
- Identifier
- NERC Earth Observation Data Centre (NEODC) / 09e5a226db8df3dd0ddb83ee45b967cb
- Maintenance and update frequency
- notPlanned
- Update scope
- dataset
- Keywords
-
- NCAVEO
- LAI
- DELTA-T SUNSCAN
- CHILBOLTON
- GEMET - INSPIRE themes, version 1.0 ()
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- orthoimagery
- Limitations on Public Access
- otherRestrictions
- Other constraints
- Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
- Use constraints
- otherRestrictions
- Spatial representation type
- grid
- Topic category
-
- Imagery base maps earth cover
))
- Begin date
- 2006-06-16T23:00:00
- End date
- 2006-06-16T23:00:00
- Code
- WGS 84
Distribution Information
- Data format
-
-
Data are NASA-Ames formatted
()
-
Data are NASA-Ames formatted
()
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
DOWNLOAD
Download Data
- Resource Locator
-
Metadata PDF
No further details.
- Resource Locator
-
CEDA Data Catalogue Page
Detail and access information for the resource
- Resource Locator
-
DOWNLOAD
Download Data
- Resource Locator
-
Metadata PDF
No further details.
- Quality Scope
- dataset
Report
- Dataset Reference Date ()
- 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
- 09e5a226db8df3dd0ddb83ee45b967cb XML
- Metadata Language
- English (en)
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646
- Parent identifier
- NCAVEO: Calibration and Validation Field Experiment: Aircraft and Ground Spectral Measurements, Atmospheric and Biophysical Data Collection 3013f5fdcb544848bb028cb1a31178e9
- Resource type
- dataset
- Metadata Date
- 2023-02-03T00:49:27
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
