Characterizing and Implementing the Hamamatsu C12880MA Mini-Spectrometer for Near-Surface Reflectance Measurements of Inland Waters

In recent decades, inland water remote sensing has seen growing interest and very strong development. This includes improved spatial resolution, increased revisiting times, advanced multispectral sensors and recently even hyperspectral sensors. However, inland waters are more challenging than oceani...

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Published in:Sensors (Basel, Switzerland) Switzerland), 2024-10, Vol.24 (19), p.6445
Main Authors: Jechow, Andreas, Bumberger, Jan, Palm, Bert, Remmler, Paul, Schreck, Günter, Ogashawara, Igor, Kiel, Christine, Kohnert, Katrin, Grossart, Hans-Peter, Singer, Gabriel A, Nejstgaard, Jens C, Wollrab, Sabine, Berger, Stella A, Hölker, Franz
Format: Article
Language:English
Subjects:
Energy consumption
environmental photonics
freshwater monitoring
Lakes
Measurement
mini-spectrometers
proximity sensing
Radiation
Remote sensing
sensor networks
Sensors
Software
Technical Note
Water quality
water-leaving reflectance
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Summary:In recent decades, inland water remote sensing has seen growing interest and very strong development. This includes improved spatial resolution, increased revisiting times, advanced multispectral sensors and recently even hyperspectral sensors. However, inland waters are more challenging than oceanic waters due to their higher complexity of optically active constituents and stronger adjacency effects due to their small size and nearby vegetation and built structures. Thus, bio-optical modeling of inland waters requires higher ground-truthing efforts. Large-scale ground-based sensor networks that are robust, self-sufficient, non-maintenance-intensive and low-cost could assist this otherwise labor-intensive task. Furthermore, most existing sensor systems are rather expensive, precluding their employability. Recently, low-cost mini-spectrometers have become widely available, which could potentially solve this issue. In this study, we analyze the characteristics of such a mini-spectrometer, the Hamamatsu C12880MA, and test it regarding its application in measuring water-leaving radiance near the surface. Overall, the measurements performed in the laboratory and in the field show that the system is very suitable for the targeted application.
ISSN:1424-8220
1424-8220
DOI:10.3390/s24196445