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A new, automated, multiangular radiometer instrument for tower-based observations of canopy reflectance (AMSPEC II)

A new, automated, multiangular radiometer instrument for tower-based observations of canopy reflectance (AMSPEC II)
A new, automated, multiangular radiometer instrument for tower-based observations of canopy reflectance (AMSPEC II)
Plant photosynthesis is critical for understanding carbon cycling at landscape and global scales. While tower-based measurements of CO2 have enhanced our knowledge of ecosystem fluxes, scaling these measurements globally is difficult. Satellite observations provide full, global coverage and hold the potential of spatially continuous measurements of ecosystem fluxes, but the requirements for modeling these fluxes from satellite-derived surface parameters are not well understood. This article describes the further development of a tower-mounted, automated, multiangular spectroradiometer system (AMSPEC II) used to study the relationships between canopy-reflectance and plant-physiological processes from multiangular observations, thereby facilitating a comprehensive modeling of the bidirectional reflectance distribution of the canopy. A Webcam permits simultaneous monitoring of phenological changes over time. Plant photosynthesis is critical for understanding carbon cycling at landscape and global scales. While tower-based measurements of CO2 have enhanced our knowledge of ecosystem fluxes, scaling these measurements globally is difficult. Satellite observations provide full, global coverage and hold the potential of spatially continuous measurements of ecosystem fluxes, but the requirements for modeling these fluxes from satellite-derived surface parameters are not well understood. This article describes the further development of a tower-mounted, automated, multiangular spectroradiometer system (AMSPEC II) used to study the relationships between canopy-reflectance and plant-physiological processes from multiangular observations, thereby facilitating a comprehensive modeling of the bidirectional reflectance distribution of the canopy. A Webcam permits simultaneous monitoring of phenological changes over time.
1073-9149
319-340
Hilker, Thomas
c7fb75b8-320d-49df-84ba-96c9ee523d40
Nesic, Zoran
a1581cdb-fcce-497b-ab4d-41d63e70bca2
Coops, Nicholas C.
5511e778-fec2-4f54-8708-de65ba5a0992
Lessard, Dominic
d13d478c-29d2-4ac9-a3ae-3631679da03e
Hilker, Thomas
c7fb75b8-320d-49df-84ba-96c9ee523d40
Nesic, Zoran
a1581cdb-fcce-497b-ab4d-41d63e70bca2
Coops, Nicholas C.
5511e778-fec2-4f54-8708-de65ba5a0992
Lessard, Dominic
d13d478c-29d2-4ac9-a3ae-3631679da03e

Hilker, Thomas, Nesic, Zoran, Coops, Nicholas C. and Lessard, Dominic (2010) A new, automated, multiangular radiometer instrument for tower-based observations of canopy reflectance (AMSPEC II). Instrumentation Science Technology, 38 (5), 319-340. (doi:10.1080/10739149.2010.508357).

Record type: Article

Abstract

Plant photosynthesis is critical for understanding carbon cycling at landscape and global scales. While tower-based measurements of CO2 have enhanced our knowledge of ecosystem fluxes, scaling these measurements globally is difficult. Satellite observations provide full, global coverage and hold the potential of spatially continuous measurements of ecosystem fluxes, but the requirements for modeling these fluxes from satellite-derived surface parameters are not well understood. This article describes the further development of a tower-mounted, automated, multiangular spectroradiometer system (AMSPEC II) used to study the relationships between canopy-reflectance and plant-physiological processes from multiangular observations, thereby facilitating a comprehensive modeling of the bidirectional reflectance distribution of the canopy. A Webcam permits simultaneous monitoring of phenological changes over time. Plant photosynthesis is critical for understanding carbon cycling at landscape and global scales. While tower-based measurements of CO2 have enhanced our knowledge of ecosystem fluxes, scaling these measurements globally is difficult. Satellite observations provide full, global coverage and hold the potential of spatially continuous measurements of ecosystem fluxes, but the requirements for modeling these fluxes from satellite-derived surface parameters are not well understood. This article describes the further development of a tower-mounted, automated, multiangular spectroradiometer system (AMSPEC II) used to study the relationships between canopy-reflectance and plant-physiological processes from multiangular observations, thereby facilitating a comprehensive modeling of the bidirectional reflectance distribution of the canopy. A Webcam permits simultaneous monitoring of phenological changes over time.

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More information

Published date: August 2010
Organisations: Earth Surface Dynamics

Identifiers

Local EPrints ID: 384716
URI: http://eprints.soton.ac.uk/id/eprint/384716
ISSN: 1073-9149
PURE UUID: 2d34dace-43bd-4cd2-ac7f-3a456fc20c8e

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Date deposited: 18 Apr 2016 15:16
Last modified: 14 Mar 2024 22:03

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Contributors

Author: Thomas Hilker
Author: Zoran Nesic
Author: Nicholas C. Coops
Author: Dominic Lessard

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