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dcterms:title "Development and calibration data of the B4+ Mini Buoy design" ;
dcterms:identifier <https://catalogue.ceh.ac.uk/id/bdd3b831-0f66-4593-a141-dee0784145e1> ;
adms:identifier <https://doi.org/10.5285/bdd3b831-0f66-4593-a141-dee0784145e1> ;
dcterms:bibliographicCitation "Ladd, C., Balke, T., Vovides, A., Christin-Wimmler, M., Schwarz, C. (2026). Development and calibration data of the B4+ Mini Buoy design. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/bdd3b831-0f66-4593-a141-dee0784145e1" ;
dcterms:description "This dataset contains acceleration data for seven 'Mini Buoys' (low-cost open-source bottom-mounted float sensors for measuring inundation duration, current velocity, and wave orbital velocity from acceleration data) and local water levels used in a pilot study to determine the effect of weight and tether length on the sensitivity of the B4+ Mini Buoy to detecting hydrodynamics. Additional datasets provided are used for deriving near-bottom wave orbital velocities using two methods: linear wave theory and direct velocity measurements. Both methods were then used to compare calibrations between velocity and acceleration data gathered by low-cost and open-source bottom-mounted floats called 'Mini Buoys'. The dataset contains water velocity data gathered by Acoustic Doppler Velocimeters, and acceleration data gathered from the B4+ Mini Buoy design. Furthermore, a dataset is provided for Mini Buoy calibration, which uses the drag-tilt principle to infer hydrodynamics from acceleration data. The dataset contains acceleration data gathered from three 'Mini Buoy' designs ('B4', 'B4+', and 'Pendant'), alongside water level, current velocity, and wave orbital velocity measured from a range of commercially-available sensors, in order to build calibration curves for inferring hydrodynamics from acceleration data." ;
dcterms:provenance [
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rdfs:label "Nine B4+ Mini Buoys, each sampling acceleration values along the y-axis at 1 Hz, were deployed adjacent to a water level (pressure) logger (In-Situ Rugged TROLL 100) on the tidal flat in front of Caerlaverock saltmarsh, Solway Firth, Scotland (54°58'05'N, 3°31'58'W) between the 15th and 24th of September 2020. Prior to deployment and after retrieving them, the loggers were inserted into a bucket of water for 1 minute to determine logger position in the tube. Each logger was fitted with different weights of ballast and different tether lengths. The pressure logger was set to sample at 1-minute intervals. Unfortunately, two loggers were lost during the deployment. Data to build a calibration between wave orbital velocity and acceleration was gathered at Caerlaverock, Scotland (54°58′05′′ N, 3°31′58′′ W) and Black Scar, Wales (51°45′54′′ N, 4°26′12′′ W). Data to build a calibration between hydrodynamics (inundation duration, current velocity, and wave orbital velocity) and acceleration was gathered at Percut Sei Tuan, Indonesia (3°43′22′′ N, 98°46′15′′ E), Caerlaverock, Scotland (54°58′05′′ N, 3°31′58′′ W), Black Scar, Wales (51°45′54′′ N, 4°26′12′′ W), and Skinflats, Scotland (56°03′22′′ N, 3°43′60′′ W) for three designs: the 'B4', 'B4+', and 'Pendant'. Please refer to the metadata sheet for further details of data collection and processing."
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