Polarised multiangular reflectance measurements using the finnish geodetic institute field goniospectrometer

The design, operation, and properties of the Finnish Geodetic Institute Field Goniospectrometer (FIGIFIGO) are presented. FIGIFIGO is a portable instrument for the measurement of surface Bidirectional Reflectance Factor (BRF) for samples with diameters of 10 - 50 cm. A set of polarising optics enabl...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2009-05, Vol.9 (5), p.3891-3907
Main Authors: Suomalainen, Juha, Hakala, Teemu, Peltoniemi, Jouni, Puttonen, Eetu
Format: Article
Language:English
Subjects:
BRDF
BRF
Design
FIGIFIGO
Finnish Geodetic Institute Field Goniospectrometer
HDRF
Laboratories
Light
reflectance
Remote sensing
Satellites
Sensors
spectrodirectional remote sensing
spectrum
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Summary:The design, operation, and properties of the Finnish Geodetic Institute Field Goniospectrometer (FIGIFIGO) are presented. FIGIFIGO is a portable instrument for the measurement of surface Bidirectional Reflectance Factor (BRF) for samples with diameters of 10 - 50 cm. A set of polarising optics enable the measurement of linearly polarised BRF over the full solar spectrum (350 - 2,500 nm). FIGIFIGO is designed mainly for field operation using sunlight, but operation in a laboratory environment is also possible. The acquired BRF have an accuracy of 1 - 5% depending on wavelength, sample properties, and measurement conditions. The angles are registered at accuracies better than 2°. During 2004 - 2008, FIGIFIGO has been used in the measurement of over 150 samples, all around northern Europe. The samples concentrate mostly on boreal forest understorey, snow, urban surfaces, and reflectance calibration surfaces.
ISSN:1424-8220
1424-8220
DOI:10.3390/s90503891