The data comprises processed active-source seismic data acquired with ocean bottom seismometer (OBS). The data were collected at the Copiapó Ridge during expedition SO297 with the research vessel RV SONNE (doi:10.48433/cr_so297) offshore Copiapó, north-central Chile (map for further details). The entire data set consists of 26 OBS stations. Seismic data were shot across the OBS along one profile. Each OBS consists of 4 channels (channel 1: hydrophone; channel 2: horizontal component 1; channel 3: horizontal component 2; channel 4: vertical component).

The data are provided in SEG-Y format.Each uploaded file (104 files in total) consists of the airgun shots recorded with the individual Ocean-Bottom-Seismometers (OBS).The naming convention is as follows using p200.obs201.1.sgy as an example:p200: Sub-survey name (from the entire SO297 cruise).obs201: OBS-station number .1: channel number (1, 2, 3, 4).sgy: data typeEach segy-data file has header-information set that can be used for plotting and analyses:trace-count (tracr, byte : 1) shotpoint number (byte: 17-20), as defined for the entire cruise SO297 (see cruise report for local shot-point and survey association)shot X coordinate (sx, byte :73-76, coordinate in UTM, WGS84, zone 19S; value given in centimeter) shot Y coordinate (sy, byte: 77-80, coordinate in UTM, WGS84, zone 19S; value given in centimeter)OBS X coordinate (gx, byte: 81-84, coordinate in UTM, WGS84, zone 19S; value given in centimeter)OBS Y coordinate (gy, byte: 85-88, coordinate in UTM, WGS84, zone 19S; value given in centimeter)