Articles | Volume 13, issue 1
https://doi.org/10.5194/gi-13-163-2024
https://doi.org/10.5194/gi-13-163-2024
Research article
 | 
06 Jun 2024
Research article |  | 06 Jun 2024

Calibrating low-cost rain gauge sensors for their applications in Internet of Things (IoT) infrastructures to densify environmental monitoring networks

Robert Krüger, Pierre Karrasch, and Anette Eltner

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Cited articles

Adla, S., Rai, N. K., Karumanchi, S. H., Tripathi, S., Disse, M., and Pande, S.: Laboratory Calibration and Performance Evaluation of Low-Cost Capacitive and Very Low-Cost Resistive Soil Moisture Sensors, Sensors, 20, 363, https://doi.org/10.3390/s20020363, 2020. 
Blanch, X., Abellan, A., and Guinau, M.: Point Cloud Stacking: A Workflow to Enhance 3D Monitoring Capabilities Using Time-Lapse Cameras, Remote Sens., 12, 1240, https://doi.org/10.3390/rs12081240, 2020. 
Brown, S. L., Goulsbra, C. S., Evans, M. G., Heath, T., and Shuttleworth, E.: Low cost CO2 sensing: A simple microcontroller approach with calibration and field use, HardwareX, 8, e00136, https://doi.org/10.1016/j.ohx.2020.e00136, 2020. 
Burt, S.: The Davis Instruments Vantage Pro2 wireless AWS – an independent evaluation against UK-standard meteorological instruments, https://www.weatherstations.co.uk/wp-content/uploads/Prodata-Expert-Guide-No.-1-Davis-VP2-AWS-c-Stephen-Burt-2009.pdf (last access: 4 June 2024), 2009. 
Chair of Meteorology: Tharandt Klimastation, https://tu-dresden.de/bu/umwelt/hydro/ihm/meteorologie/forschung/mess-und-versuchsstationen/tharandt-klimastation?set_language=de (last access: 10 May 2023), 2023. 
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Short summary
Low-cost sensors could fill gaps in existing observation networks. To ensure data quality, the quality of the factory calibration of a given sensor has to be evaluated if the sensor is used out of the box. Here, the factory calibration of a widely used low-cost rain gauge type has been tested both in the lab (66) and in the field (20). The results of the study suggest that the calibration of this particular type should at least be checked for every sensor before being used.
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