Estimating the Underwater Diffuse Attenuation Coefficient with a Low-Cost Instrument: The KdUINO DIY Buoy
| Autor: | Jaume Piera, Marcel Robert Wernand, Raúl Bardají, Carine Simon, Albert-Miquel Sánchez |
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| Přispěvatelé: | European Commission, Consejo Superior de Investigaciones Científicas (España) |
| Rok vydání: | 2016 |
| Předmět: |
Engineering
diffuse attenuation coefficient 010504 meteorology & atmospheric sciences Light Instrumentation buoy Irradiance Citizen science Oceanography lcsh:Chemical technology 01 natural sciences Biochemistry Article Analytical Chemistry Arduino citizen science do-it-yourself KdUINO light low-cost sensor oceanography Data acquisition Buoy lcsh:TP1-1185 14. Life underwater Electrical and Electronic Engineering Underwater Low-cost sensor 0105 earth and related environmental sciences Remote sensing business.industry Attenuation 010401 analytical chemistry Atomic and Molecular Physics and Optics 0104 chemical sciences Do it yourself Attenuation coefficient Diffuse attenuation coefficient Water quality business |
| Zdroj: | Sensors (Basel, Switzerland) Sensors, Vol 16, Iss 3, p 373 (2016) Digital.CSIC. Repositorio Institucional del CSIC instname Sensors; Volume 16; Issue 3; Pages: 373 |
| ISSN: | 1424-8220 2011-3048 |
| Popis: | 15 pages, 15 figures, 1 table, supplementary material https://doi.org/10.3390/s16030373 A critical parameter to assess the environmental status of water bodies is the transparency of the water, as it is strongly affected by different water quality related components (such as the presence of phytoplankton, organic matter and sediment concentrations). One parameter to assess the water transparency is the diffuse attenuation coefficient. However, the number of subsurface irradiance measurements obtained with conventional instrumentation is relatively low, due to instrument costs and the logistic requirements to provide regular and autonomous observations. In recent years, the citizen science concept has increased the number of environmental observations, both in time and space. The recent technological advances in embedded systems and sensors also enable volunteers (citizens) to create their own devices (known as Do-It-Yourself or DIY technologies). In this paper, a DIY instrument to measure irradiance at different depths and automatically calculate the diffuse attenuation Kd coefficient is presented. The instrument, named KdUINO, is based on an encapsulated low-cost photonic sensor and Arduino (an open-hardware platform for the data acquisition). The whole instrument has been successfully operated and the data validated comparing the KdUINO measurements with the commercial instruments. Workshops have been organized with high school students to validate its feasibility This work was supported by the Spanish National Research Council (CSIC) under the EU Citclops Project (FP7-ENV-308469), the MARduino project (FCT-13-6911) and the Mestral Project CTM2011-30489-C02-01. Carine Simon is currently funded by the Ramon y Cajal program |
| Databáze: | OpenAIRE |
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