内部比较WISP-3和其他的辐射计(TriOS Ramses, ASD FieldSpec, and TACCS)

文献资料出处：Journal of Applied Remote Sensing, Vol 6, 2012

Optical close-range instruments can be applied to derive water quality parameters for monitoring purposes and for validation of optical satellite data. In situ radiometers are often difficult to deploy, especially from a small boat or a remote location. The water insight spectrometer (WISP-3) is a new hand-held radiometer for monitoring water quality, which automatically performs measurements with three radiometers (Lsky, Lu , Ed ) and does not need to be connected with cables and electrical power during measurements. The instrument is described and its performance is assessed by an intercomparison to well-known radiometers, under real fieldwork conditions using a small boat and with sometimes windy and cloudy weather. Root mean squared percentage errors relative to those of the TriOS system were generally between 20% and 30% for remote sensing reflection, which was comparable to those of the other instruments included in this study. From this assessment, it can be stated that for the tested conditions, the WISP-3 can be used to obtain reflection spectra with accuracies in the same range as well-known instruments. When tuned with suitable regional algorithms, it can be used for quick scans for water quality monitoring of Chl, SPM, and aCDOM. © 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.JRS.6.063615]

WISP-3是荷兰Water Insight公司生产的一款手持式的水质光谱仪，它具有快速、简便、精确的特点。WISP-3安装了两个辐亮度传感器和一个辐照度传感器，可测量天空和水体表面的辐照度与辐亮度，并使用内置标准算法，直接计算得到水体叶绿素、悬浮颗粒物、蓝藻、有色溶解有机物的浓度以及水表面遥感反射率。同时，WISP-3光谱仪内置SD卡用以存储辐照度和辐亮度值，以便导出使用。由于WISP-3的速度性、灵活性以及瞬时数据的可用性，使用WISP-3可对水体环境管理机构在藻华等环境污染方面的管理决策提供参考支持。（叶绿素、蓝藻、悬浮颗粒物的标准算法参考Gons 2005，Simis 2006，Rijkeboer 2000）