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The ASD instrument attached with
the Li-Cor 1800 integrating sphere
The portable field spectroradiatometer FieldSpec Pro FR (Analytical
Spectral Devices, Inc. Boulder, USA) is designed to collect
solar reflectance, radiance and irradiance measurements. High
spectral resolution (1nm interval) with a 350 nm - 2500 nm
spectral range is ideal for applications in mining optical
remote sensing.
The ASD instrument is used in the field to measure the reflectance
of forest background, soil, rock etc. ground targets. The
ASD instrument can be attached to an integrating sphere to
measure the leaf reflectance and transmittance, which can
be used for estimating leaf biochemical contents and thus
vegetation physiology status.
The high resolution spectrum measurements are important inputs
of the leaf-level model (modified PROSPECT) and geometric
optical model (5-scale) for retrieving leaf biochemical contents
from hyperspectral remote sensing images.
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