{"metadata": {"columns": ["date", "datetimeiso", "dec_lat", "dec_lon", "chl_ugl", "turb_ntu", "water_temperature_degree_c", "conductivity_sm", "salinity_psu", "heading", "heading_type", "roll_deg", "pitch_deg", "heave_m", "speed_kt", "speed_km", "qsr_s_n_10367"], "num_columns": 17}, "data": null}