Sakowska Karolina, Gianelle Damiano, Zaldei Alessandro, MacArthur Alasdair, Carotenuto Federico, Miglietta Franco, Zampedri Roberto, Cavagna Mauro, Vescovo Loris
Sustainable Agro-Ecosystems and Bioresources Department, Research and Innovation Centre-Fondazione Edmund Mach, Via E. Mach 1, 38010 S. Michele all'Adige (TN), Italy.
Institute of Biometeorology, CNR, 50145 Firenze, Italy.
Sensors (Basel). 2015 Jan 8;15(1):1088-105. doi: 10.3390/s150101088.
Proximal sensing is fundamental to monitor the spatial and seasonal dynamics of ecosystems and can be considered as a crucial validation tool to upscale in situ observations to the satellite level. Linking hyperspectral remote sensing with carbon fluxes and biophysical parameters is critical to allow the exploitation of spatial and temporal extensive information for validating model simulations at different scales. In this study, we present the WhiteRef, a new hyperspectral system designed as a direct result of the needs identified during the EUROSPEC ES0903 Cost Action, and developed by Fondazione Edmund Mach and the Institute of Biometeorology, CNR, Italy. The system is based on the ASD FieldSpec Pro spectroradiometer and was designed to acquire continuous radiometric measurements at the Eddy Covariance (EC) towers and to fill a gap in the scientific community: in fact, no system for continuous spectral measurements in the Short Wave Infrared was tested before at the EC sites. The paper illustrates the functioning of the WhiteRef and describes its main advantages and disadvantages. The WhiteRef system, being based on a robust and high quality commercially available instrument, has a clear potential for unattended continuous measurements aiming at the validation of satellites' vegetation products.
近端传感对于监测生态系统的空间和季节动态至关重要，并且可被视为将原位观测数据向上扩展到卫星层面的关键验证工具。将高光谱遥感与碳通量和生物物理参数相联系，对于利用时空广泛信息来验证不同尺度的模型模拟至关重要。在本研究中，我们展示了WhiteRef，这是一种新型高光谱系统，它是欧盟光谱学（EUROSPEC）ES0903成本行动期间所确定需求的直接成果，由意大利埃德蒙·马赫基金会（Fondazione Edmund Mach）和意大利国家研究委员会（CNR）生物气象研究所开发。该系统基于ASD FieldSpec Pro光谱辐射仪设计，旨在在涡度协方差（EC）塔处获取连续的辐射测量数据，并填补科学界的一项空白：实际上，此前在EC站点尚未测试过用于短波红外连续光谱测量的系统。本文阐述了WhiteRef的运行情况，并描述了其主要优缺点。WhiteRef系统基于一款坚固且高质量的商用仪器，在旨在验证卫星植被产品的无人值守连续测量方面具有明显潜力。
