<?xml version="1.0" encoding="UTF-8"?><!--*** Generated from internal PANGAEA metadata schema by dif.xslt ***--><DIF xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.4.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/">
<Entry_ID>PANGAEA_995922</Entry_ID>
<Entry_Title>Multibeam bathymetry raw data (Atlas Hydrosweep DS 3 echo sounder entire dataset) of RV POLARSTERN during cruise PS154/2</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Cornish, Natalie; Baumbusch, Clara; Dreutter, Simon; Dorschel, Boris</Dataset_Creator>
<Dataset_Title>Multibeam bathymetry raw data (Atlas Hydrosweep DS 3 echo sounder entire dataset) of RV POLARSTERN during cruise PS154/2</Dataset_Title>
<Dataset_Release_Date>2026-08-24</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.995922</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Natalie</First_Name>
<Last_Name>Cornish</Last_Name>
<Email>natalie.cornish@awi.de</Email>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>Event label</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Binary Object</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Binary Object (Media Type)</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Binary Object (File Size)</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>File content</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Data file recording duration</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Data file recording distance</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Ship speed</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Number of pings</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Start of data file recording, date/time</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Start of data file recording, latitude</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Start of data file recording, longitude</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Start of data file, heading</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Start of data file, depth</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Stop of data file recording, date/time</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Stop of data file recording, latitude</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Stop of data file recording, longitude</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Stop of data file, heading</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Stop of data file, depth</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>DATE/TIME</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>LATITUDE</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>LONGITUDE</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>ELEVATION</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Comment</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>Atlantic Ocean</Keyword>
<Keyword>Bathymetry</Keyword>
<Keyword>CTD/Rosette</Keyword>
<Keyword>Hydrosweep DS3</Keyword>
<Keyword>Multibeam</Keyword>
<Keyword>Multibeam Echosounder</Keyword>
<Keyword>Polarstern</Keyword>
<Keyword>PS154/2</Keyword>
<Keyword>PS154/2_0_Underway-2</Keyword>
<Keyword>PS154/2_11-2</Keyword>
<Keyword>PS154/2_12-1</Keyword>
<Keyword>PS154/2_1-3</Keyword>
<Keyword>PS154/2_13-1</Keyword>
<Keyword>PS154/2_2-2</Keyword>
<Keyword>PS154/2_3-2</Keyword>
<Keyword>PS154/2_4-1</Keyword>
<Keyword>PS154/2_5-1</Keyword>
<Keyword>PS154/2_6-2</Keyword>
<Keyword>PS154/2_6-4</Keyword>
<Keyword>PS154/2_7-2</Keyword>
<Keyword>PS154/2_8-1</Keyword>
<Keyword>PS154/2_9-2</Keyword>
<Keyword>Swath-mapping system Atlas Hydrosweep DS-3</Keyword>
<Sensor_Name>
<Long_Name>Extracted with MB-System</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>Polarstern</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>2026-05-01</Start_Date>
<Stop_Date>2026-05-13</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>16.908665802</Southernmost_Latitude>
<Northernmost_Latitude>50.058167</Northernmost_Latitude>
<Westernmost_Longitude>-25.022550231</Westernmost_Longitude>
<Easternmost_Longitude>-0.889833</Easternmost_Longitude>
<Minimum_Altitude>-5147.1216 m a.s.l. (ELEVATION)</Minimum_Altitude>
<Maximum_Altitude>-62.8605 m a.s.l. (ELEVATION)</Maximum_Altitude>
</Spatial_Coverage>
<Project>
<Short_Name>AI_BaseCamp</Short_Name>
<Long_Name>AI BaseCamp - Helmholtz DataHub Earth &amp; Environment</Long_Name>
</Project>
<Project>
<Short_Name>BATHY-LTO</Short_Name>
<Long_Name>BATHYmetric Long-Term Observations during Expeditions with RV Polarstern</Long_Name>
</Project>
<Access_Constraints>unrestricted</Access_Constraints>
<Use_Constraints>CC-BY-4.0: Creative Commons Attribution 4.0 International</Use_Constraints>
<Data_Set_Language>English</Data_Set_Language>
<Data_Center>
<Data_Center_Name>
<Short_Name>PANGAEA</Short_Name>
<Long_Name>Data Publisher for Earth &amp; Environmental Science</Long_Name>
</Data_Center_Name>
<Data_Center_URL>https://www.pangaea.de/</Data_Center_URL>
<Personnel>
<Role>Data Center Contact</Role>
<First_Name>Michael</First_Name>
<Last_Name>Diepenbroek</Last_Name>
<Email>info@pangaea.de</Email>
<Contact_Address>
<Address>Leobener Str.</Address>
<City>Bremen</City>
<Province_or_State>Bremen</Province_or_State>
<Postal_Code>28359</Postal_Code>
<Country>Germany</Country>
</Contact_Address>
</Personnel>
</Data_Center>
<Distribution>
<Distribution_Media>online</Distribution_Media>
<Distribution_Size>2770 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Cornish, Natalie; Baumbusch, Clara; Dreutter, Simon; Dorschel, Boris (2026): Multibeam bathymetry processed data (Atlas Hydrosweep DS 3 echo sounder entire dataset) of RV POLARSTERN during cruise PS154/2, Atlantic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.995441</Reference>
<Reference>Cornish, Natalie; Fiedler, Björn (2026): The Expeditions PS154/1 und PS154/2 of the Research Vessel POLARSTERN to the Atlantic Ocean in 2026. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 811, 90 pp, https://doi.org/10.57738/BZPM_0811_2026</Reference>
<Reference>Information on sensor and vessel configuration (URI: https://registry.o2a-data.de/items/1393#Resources)</Reference>
<Reference>Reagan, James R; Boyer, Tim P; García, Hernán E; Locarnini, Ricardo A; Baranova, Olga K; Bouchard, Courtney; Cross, Scott L; Mishonov, Alexey V; Paver, Christopher R; Seidov, Dan; Wang, Zhankun; Dukhovskoy, Dmitry (2023): World Ocean Atlas 2023 [dataset]. NOAA National Centers for Environmental Information, https://doi.org/10.25921/VA26-HV25</Reference>
<Summary>Multibeam data were collected with RV Polarstern along the route of cruise PS154/2 and data acquisition was almost continuously monitored during the survey. Multibeam sonar system was Teledyne/Atlas Hydrosweep DS3. SVPs were retrieved from CTD data and synthetic profiles from World Ocean Atlas 23. SVPs were processed with HydrOffice SoundSpeedManager (https://www.hydroffice.org/soundspeed/main) and extended with World Ocean Atlas 23 (https://www.ncei.noaa.gov/archive/accession/NCEI-WOA23). SVP data were applied during acquisition. Multibeam data are unprocessed and may contain outliers and blunders and should not be used for grid calculations and charting projects without further editing. The raw multibeam sonar data in Teledyne Reson multibeam processing format (.s7k) were recorded with Teledyne PDS software. Raw data files can be processed using software packages like CARIS HIPS/SIPS. For updated vessel configuration files check further details. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995922"! ** These data should not be used for navigational purposes.</Summary>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/Elevation</URL>
<Description>ELEVATION</Description>
</Related_URL>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_6709</URL>
<Description>LATITUDE</Description>
</Related_URL>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_6709</URL>
<Description>LONGITUDE</Description>
</Related_URL>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_6709</URL>
<Description>Start of data file recording, latitude</Description>
</Related_URL>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_6709</URL>
<Description>Start of data file recording, longitude</Description>
</Related_URL>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_6709</URL>
<Description>Stop of data file recording, latitude</Description>
</Related_URL>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_6709</URL>
<Description>Stop of data file recording, longitude</Description>
</Related_URL>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/ISO_8601</URL>
<Description>DATE/TIME</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.17815/jlsrf-3-163</URL>
<Description>Polarstern</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.25921/VA26-HV25</URL>
<Description>World Ocean Atlas 2023</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.5281/zenodo.6302801</URL>
<Description>Extracted with MB-System</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.57738/BZPM_0811_2026</URL>
<Description>The Expeditions PS154/1 und PS154/2 of the Research Vessel POLARSTERN to the Atlantic Ocean in 2026</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.pangaea.de/10.1594/PANGAEA.995441</URL>
<Description>Multibeam bathymetry processed data (Atlas Hydrosweep DS 3 echo sounder entire dataset) of RV POLARSTERN during cruise PS154/2, Atlantic Ocean</Description>
</Related_URL>
<Related_URL>
<URL>https://earth-data.de/about</URL>
<Description>AI_BaseCamp</Description>
</Related_URL>
<Related_URL>
<URL>https://en.m.wikipedia.org/wiki/Heading_(navigation)</URL>
<Description>Start of data file, heading</Description>
</Related_URL>
<Related_URL>
<URL>https://en.m.wikipedia.org/wiki/Heading_(navigation)</URL>
<Description>Stop of data file, heading</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/ISO_8601</URL>
<Description>Start of data file recording, date/time</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/ISO_8601</URL>
<Description>Stop of data file recording, date/time</Description>
</Related_URL>
<Related_URL>
<URL>https://registry.o2a-data.de/items/1393#Resources</URL>
<Description>Information on sensor and vessel configuration</Description>
</Related_URL>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2026-08-24</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-09-22</Last_DIF_Revision_Date>
</DIF>
