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

Andreas Jechow^1,2,3, Jan Bumberger^4,5,6, Bert Palm^4,5

¹Department of Engineering, Brandenburg University of Applied Sciences, 14770 Brandenburg an der Havel, Germany.

Sensors (Basel, Switzerland)

|October 16, 2024

Summary

Low-cost mini-spectrometers show promise for inland water remote sensing. This study found the Hamamatsu C12880MA suitable for measuring water-leaving radiance, aiding complex bio-optical modeling efforts.

Keywords:

compact spectro-radiometers environmental photonics freshwater monitoring mini-spectrometers proximity sensing sensor networks water-leaving reflectance

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Area of Science:

Environmental science
Remote sensing technology
Optical oceanography

Background:

Inland water remote sensing is increasingly important but faces challenges due to complex constituents and adjacency effects.
Accurate bio-optical modeling of inland waters requires extensive ground-truthing, which is often labor-intensive and costly.
Existing sensor systems are expensive, limiting widespread adoption for ground-based monitoring.

Purpose of the Study:

To evaluate the suitability of a low-cost mini-spectrometer, the Hamamatsu C12880MA, for inland water remote sensing.
To assess the potential of affordable sensor networks for improving ground-truthing efforts in inland aquatic environments.
To determine if this mini-spectrometer can effectively measure water-leaving radiance near the surface.

Main Methods:

Laboratory analysis of the Hamamatsu C12880MA mini-spectrometer's characteristics.
Field testing of the mini-spectrometer for measuring water-leaving radiance in inland waters.
Comparison of performance against requirements for robust, self-sufficient, and low-cost sensor networks.

Main Results:

The Hamamatsu C12880MA demonstrated suitability for measuring water-leaving radiance.
Laboratory and field measurements confirmed the system's performance for the intended application.
The mini-spectrometer shows potential as a cost-effective component for ground-based sensor networks.

Conclusions:

Low-cost mini-spectrometers like the Hamamatsu C12880MA are viable tools for inland water remote sensing.
This technology can significantly reduce the cost and labor associated with ground-truthing for bio-optical modeling.
The study supports the development of affordable, large-scale sensor networks for monitoring inland aquatic ecosystems.