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A new dual-beam technique for precise measurements of spectral reflectance in the field

Milton, E.J., Emery, D.R. and Lawrance, D.J. (2000) A new dual-beam technique for precise measurements of spectral reflectance in the field At 28th International Symposium on Remote Sensing of Environment. 27 - 31 Mar 2000.

Record type: Conference or Workshop Item (Paper)


Field spectral measurements made using the single - beam method often include errors due to variation in illumination between measurement of the target and the reference (panel or cosine -corrected receptor). Although the dual-beam method avoids these errors, it introduces greater complexity due to the need to intercalibrate the two sensor heads used, and it is significantly more expensive. This paper describes an alternative dual-beam method which uses a neural network to estimate the complete irradiance spectrum from measurements made in 7 narrow bands. These narrow band measurements of irradiance may be made with a simple filter-based radiometer, thus avoiding the expense and complexity of a second spectroradiometer. The new technique has been tested using irradiance spectra from both continental and maritime locations.

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Published date: 2000
Additional Information: CD ROM
Venue - Dates: 28th International Symposium on Remote Sensing of Environment, 2000-03-27 - 2000-03-31


Local EPrints ID: 5935
PURE UUID: b4a412cb-8e12-4e0c-833c-0c7f5b929e4e

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Date deposited: 21 May 2004
Last modified: 17 Jul 2017 17:15

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Author: E.J. Milton
Author: D.R. Emery
Author: D.J. Lawrance

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