https://doi.pangaea.de/10.1594/PANGAEA.993656Schlundt, MichaelMichaelSchlundt0000-0003-4462-8230GEOMAR - Helmholtz Centre for Ocean Research KielFrank, MartinMartinFrank0000-0002-8606-4421GEOMAR - Helmholtz Centre for Ocean Research KielKopp, HeidrunHeidrunKopp0000-0002-6898-1568GEOMAR - Helmholtz Centre for Ocean Research KielPANGAEA2026DATE/TIMELATITUDELONGITUDEDEPTH, waterTemperature, waterQuality flag, water temperatureConductivityTemperature, water, internalSalinityQuality flag, salinityMeasurement containerThermosalinographDigital oceanographic thermometer, Sea-Bird, SBE 38Seadatanet flag: Data quality control procedures according to SeaDataNet (2010)Thermosalinograph, Sea-Bird, SBE 45Calculated from internal temperature and conductivitySO314Sonne_2DAM Underway Research Data (DAM_Underway)DataHub Earth and Environment of the Helmholtz Association (DataHub)2025-08-18T00:59:00/2025-10-03T10:59:00Dataset10.5281/zenodo.7535559391228 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalUnderway temperature and salinity data was collected along the cruise track with two autonomous measurement systems, called self-cleaning monitoring boxes (SMBs). Usually, the SMBs are changed after a predefined period, ~24 hours on this cruise. While temperature is taken at the water inlet in about 4 m depth, salinity is estimated within the SMB from conductivity and interior temperature. No temperature and salinity validation was performed. For details to all processing steps see Data Processing Report.-132.8349273-74.41319650000003-23.2354925-13.8254206