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Multibeam bathymetry processed data (Atlas Hydrosweep DS 3 echo sounder entire dataset) of RV POLARSTERN during cruise PS151, Atlantic Ocean

Multibeam data were collected during RV Polarstern cruise PS151 (2025-11-13 to 2025-12-12). Multibeam sonar system was Atlas Hydrographic Hydrosweep DS 3 multibeam echo sounder. Data are processed with Caris HIPS, including sound velocity correction with SV data from CTDs and World Ocean Atlas 23 (https://www.ncei.noaa.gov/archive/accession/NCEI-WOA23), tidal correction with TPXO9_atlas_v5 (https://www.tpxo.net), and manual cleaning. The soundings are combined in daily files, the format is XYZ ASCII (<Lon> <Lat> <Depth in meters, positive up, relative to mean sea level>). Additional grids have been computed with depth dependent cell size to visualize the data. These grids are not meant for scientific analysis or navigation, but for overview purposes only.

Untersuchung des Transfers von nordatlantischem Tiefenwasser durch den Südatlantik unter Verwendung des kompletten WOCE-Tracerdatensatzes

Der Südatlantik stellt für die Rolle des Nordatlantischen Tiefenwassers (NADW) in der globalen Tiefenwasserzirkulation ('convoy belt') eine Schlüsselregion dar. In dem Vorhaben soll der komplette südatlantische WOCE-Tracerdatensatz zusammen mit weiteren Daten (insbesondere US Programm SAVE) im Bereich des NADW analysiert werden mit dem Ziel, aufbauend auf dem vorliegenden Wissen die Wege und Raten des NADW vom Eintritt am Äquator bis zum Übertritt in den Antarktischen Zirkumpolarstrom weiter aufzuklären. Hierbei soll zwischen den verschiedenen Stockwerken des NADW differenziert werden. Wichtige Teilfragen sind der Austausch des Westlichen Randstroms mit den Wässern östlich hiervon bis hin zum afrikanischen Kontinentalabhang, wobei dem Mittelatlantischen Rücken vermutlich eine besondere Rolle zukommt, sowie der Grad der Rezirkulation des westlichen Randstroms. Die Untersuchung wird sich ausschließlich auf vorhandene Datensätze stützen, Feldarbeiten sind nicht vorgesehen. Ein Vergleich mit Strömungs- und Tracerfeldern eines hochauflösenden Zirkulationsmodells (C. Böning) soll die Untersuchung unterstützen und gleichzeitig den Realitätsgrad der Modellfelder überprüfen.

Integrative Kartierung und Priorisierung von Schutzgebieten im Atlantik - Leitlinien für die Abwägung von Naturschutzprioritäten mit wirtschaftlichen und rechtlichen Interessen auf Hoher See, Vorhaben: Leitlinienentwicklung für die Abwägung zwischen Schutz und Nutzung des Atlantiks

Das CO2-System im Ozean: CO2-Verteilung und Analysenvergleich bei der Messung der Alkalinitaet, des gesamten geloesten anorganischen Kohlenstoffs und des pH im Nordatlantik auf der RSS DISCOVERY vom 10.-27. Juni 1990

Column water vapour (CWV) measurements in NetCDF format retrieved from GNSS antenna gathered during Polarstern cruise PS147

The ship campaign PS147 (Atlantic Transit) with the German research vessel Polarstern took place from 12 March to 14 April 2025. The transit proceeded from Stanley, Falkland Islands, to Bremerhaven, Germany, with a stopover in Mindelo, Cape Verde, dividing the campaign into two sections, PS147/1 and PS147/2. During the voyage, several climate zones were crossed, including the Intertropical Convergence Zone (ITCZ). Here, we present the column water vapour retrieved from GNSS data. These data form part of a series of standardized datasets of atmospheric observations collected during the PS147 campaign.

Modeled environmental data-layers and changes predicted under RCP2.6, 4.5 and 8.5 for the deep Atlantic Ocean

The data layers provided show current values for seawater temperature, pH, calcite and aragonite saturation (%), oxygen concentration, and particulate organic carbon (POC) flux to the seafloor at different depths (500, 1000, 2000, 3000, and 4000m) at the present day (1951-2000) and changes in these variables expected between 2041-2060 and 2081-2100 under different RCP scenarios. The data layers were generated following the methods described in Levin et al. (2020). In short, in 2019, we obtained the present day and future ocean projections for the different years which were compiled from all available data generated by Earth Systems Models as part of the Coupled Model Inter-comparison Project Phase 5 (CMIP5) to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Three Earth System Models, including GFDL‐ESM‐2G, IPSL‐CM5A‐MR, and MPI‐ESM‐MR were collected and multi-model averages of temperature, pH, O2 , export production at 100-m depth (epc100), carbonate ion concentration (co3), and carbonate ion concentration for seawater in equilibrium with aragonite (co3satarg) and calcite (co3satcalc) were calculated. The epc100 was converted to export POC flux at the seafloor using the Martin curve (Martin et al., 1987) following the equation: POC flux = export production*(depth/export depth)0.858. The export depth was set to 100 m, and the water depth using the ETOPO1 Global Relief Model (Amante and Eakins, 2008). Seafloor aragonite and calcite saturation were computed by dividing co3 by co3satarg and co3satcalc. All variableswere reported as the inter-annual mean projections between 1951-2000, 2041-2060, and 2081-2100. The data for calcite and aragonite saturation can be found in Morato et al. (2020).

Multibeam bathymetry processed data (Atlas Hydrosweep DS 3 echo sounder entire dataset) of RV POLARSTERN during cruise PS145/1, Atlantic Ocean

Multibeam data were collected during RV Polarstern cruise PS145/1 (2024-11-25 to 2024-12-07). Multibeam sonar system was Atlas Hydrographic Hydrosweep DS 3 multibeam echo sounder. Data are processed with Caris HIPS, including sound velocity correction with SV data from SVPs, CTDs and World Ocean Atlas 18 (https://www.ncei.noaa.gov/archive/accession/NCEI-WOA18), tidal correction with TPXO9_atlas_v5 (https://www.tpxo.net), and manual cleaning. The soundings are combined in daily files, the format is XYZ ASCII (<Lon> <Lat> <Depth in meters, positive up, relative to mean sea level>). Additional grids have been computed with depth dependent cell size to visualize the data. These grids are not meant for scientific analysis or navigation, but for overview purposes only.

GTS Bulletin: FEAE75 EDZW - Forecast (details are described in the abstract)

The FEAE75 TTAAii Data Designators decode as: T1 (F): Forecast T1T2 (FE): Extended A1A2 (AE): South-East Asia (Remarks from Volume-C: FORECAST (5 DAYS) FOR THE EASTERN ATLANTIC (IN ENGLISH))

GTS Bulletin: FEAE55 EDZW - Forecast (details are described in the abstract)

The FEAE55 TTAAii Data Designators decode as: T1 (F): Forecast T1T2 (FE): Extended A1A2 (AE): South-East Asia (Remarks from Volume-C: FORECAST (5 DAYS) FOR THE EASTERN ATLANTIC (IN GERMAN))

Model Output Statistics for ATLANTIC CITY (INT. AIRP.) (72407)

DWD’s fully automatic MOSMIX product optimizes and interprets the forecast calculations of the NWP models ICON (DWD) and IFS (ECMWF), combines these and calculates statistically optimized weather forecasts in terms of point forecasts (PFCs). Thus, statistically corrected, updated forecasts for the next ten days are calculated for about 5400 locations around the world. Most forecasting locations are spread over Germany and Europe. MOSMIX forecasts (PFCs) include nearly all common meteorological parameters measured by weather stations. For further information please refer to: [in German: https://www.dwd.de/DE/leistungen/met_verfahren_mosmix/met_verfahren_mosmix.html ] [in English: https://www.dwd.de/EN/ourservices/met_application_mosmix/met_application_mosmix.html ]

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