Raw water column data were collected aboard RV SONNE during cruise SO288 COMBO using a 12kHz Kongsberg EM 122 multibeam echosounder. The expedition took place during 15.01.2022 - 15.02.2022 from Guayaquil (Ecuador) to Valparaiso (Ecuador) in the Pacific Ocean along the Chilean coast. The main objective of SO288 COMBO (Cojoint Monitoring of the Ocean Bottom Offshore Chile) was to de-install and recover the GeoSEA array off northern Chile. Data were recorded within the Chilean EEZ. Sound velocity profiles (SVP) were applied on the data for calibration. Please see environmental data and the cruise report for details. The data are unprocessed and can therefore contain incorrect depth measurements (artifacts) if not further processed. Note that refraction errors may occur when no proper SVP is applied. Data acquisition was done by GEOMAR Helmholtz Centre for Ocean Research, provision of the data is supported by the DAM Underway Project and published according to the FAIR principles.

These data should not be used for navigational purposes.