6_buoy_data

Wave measurements were carried out with Spotter buoy designed by Spoondrift (https://www.sofarocean.com/products/spotter). The buoy registers motion in 3 directions: x(easting) y(northing) and z(vertical) with 2.5 Hz frequency using GPS and Inertial Measurement Unit. After each 30 min of measurements wave statistics (including significant wave height and peak wave period that will be used for the comparison) is calculated. Wave frequency range of the buoy is 0.03 – 1 Hz, stated accuracy – 2 cm. Field measurements took place on July 11 – 27, 2019, at 20 m depth, 5.3 km distance from the Vistula Spit, Kaliningrad Region of Russia, the Baltic Sea coast (54.63 N 19.77 E). For the map of the site please check buoy_map.png figure.<br>In supplementary buoy_baltic_2019.csv file first column is epoch time, second – significant wave height in meters, third – peak period of wave spectrum in seconds, forth – mean wave period in seconds, fifth – wean wave direction in degrees. Wave parameters are plotted in the figure wave_data_buoy_balt.jpg