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  • 1
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    Unknown
    Raw data of GPS position and sea-surface temperature recorded by 44 Southtek NOMAD drifting buoys in the marginal ice zone north of Svalbard in 2022 (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-25
    Description: 44 Southtek Iridium GPS drifters of types Offshore NOMAD-T V3 (33) and Offshore NOMAD V2 (11) were deployed in the marginal ice zone northwest of Svalbard as part of RV Polarstern expedition PS131 (ATWAICE) in July-August 2022. In addition to GPS position and time, the 33 NOMAD-T buoys also measured sea-surface temperatures. The 44 buoys were used for a total of 48 individual deployments, including 4 redeployments of recovered instruments, to either mark and track non-iridium instruments (6), to mark important sites (2), to track individual ice floes (1), or to elucidate the surface ocean currents as a complement to measurements obtained by the towed Triaxus system (31) or the ship-based CTD (8). The buoys were either thrown over board into open water, placed on sea ice, or attached to instruments. The measurement and transmission intervals were between 1 hour and 15 minutes, and were also partly reconfigured during operation. The drifter data were downloaded directly on board and displayed in the ship's Mapviewer software in near-real time, to facilitate navigation and to support the scientific program in decision-making. The attached .zip archive contains the original data files obtained from the Southtek server, which were partially modified to account for the 4 redeployments (indicated by "redeployed" in the filename), and to fill a data gap caused by an iridium data provider issue (indicated by "merged" in the filename). The files still include the deck test data, which needs to be removed according to the attached table with deployment metadata (including deployment time and position).
    Keywords: 2022P10004; 2022P10006; 2022P10007; 2022P10009; 2022P10010; 2022P10011; 2022P10012; 2022P10013; 2022P10014; 2022P10015; 2022P10016; 2022P10017; 2022P10018; 2022P10019; 2022P10020; 2022P10021; 2022P10022; 2022P10024; 2022P10025; 2022P10026; 2022P10027; 2022P10028; 2022P10029; 2022P10030; 2022P10031; 2022P10032; 2022P10033; 2022P10035; 2022P10036; 2022P10037; 2022P10038; 2022P10039; 2022P10040; 2022P10041; 2022P10042; 2022P10043; 2022P10044; 2022P10045; 2022P10046; 2022P10047; 2022P10048; 2022P10049; 2022P10050; 2022P10051; ATWAICE; AWI_PhyOce; Binary Object; Binary Object (File Size); Buoy; BUOY; File content; GPS buoy; mesoscale; ocean currents; Physical Oceanography @ AWI; Polarstern; PS131; PS131_100-2; PS131_101-2; PS131_102-2; PS131_47-1_10; PS131_47-1_11; PS131_47-1_12; PS131_47-1_9; PS131_48-1_15; PS131_48-1_16; PS131_49-1_15; PS131_55-10; PS131_55-11; PS131_55-2; PS131_55-3; PS131_55-4; PS131_55-5; PS131_55-6; PS131_55-7; PS131_55-8; PS131_55-9; PS131_59-3; PS131_59-4; PS131_61-9; PS131_64-2; PS131_64-3; PS131_64-4; PS131_64-5; PS131_64-6; PS131_64-7; PS131_66-2; PS131_66-3; PS131_67-1_9; PS131_70-2; PS131_90-3; PS131_90-4; PS131_90-5; PS131_95-10; PS131_95-2; PS131_95-3; PS131_95-4; PS131_95-5; PS131_95-6; PS131_95-7; PS131_95-8; PS131_95-9; PS131_96-2; PS131_97-2; PS131_98-2; sea ice drift; sea-surface temperature; trajectories
    Type: Dataset
    Format: text/tab-separated-values, 2 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Raw data from Triaxus topAWI (towed ocean profiler of the AWI) during MERIAN cruise MSM93 (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-25
    Description: The MacArtney Triaxus extended version is a remotely operated towed vehicle (ROTV). It is towed behind the ship between 2 and 10 knots and can undulate in a saw tooth pattern between a few meters below the surface and 350m depth. The umbilical provides power and a fiber optic link to sensors that are mounted on the Triaxus (see SensorWeb). The data collected by the sensors were recorded on separate computers, one computer per sensor (including the flight information from the Triaxus itself). Thus, there are 7 separate data streams saved in separate folders plus a folder with metadata information about the different dives. During long Triaxus operations, new data files would be started approximately every 4 hours, because some of the employed software programs do not allow for backing up of the files while they are still being written to. A front in the open ocean region in the vicinity of the ice edge in Fram Strait was searched for with a ~100km long constant depth Triaxus transect on July 8. When a front had been found, it was surveyed in 3D by parallel UCTD sections and drifters were deployed. The front was followed until July 16 with the repeat of parallel UCTD and Triaxus sections. In total 17 sections were occupied with the Triaxus.
    Keywords: AC3; Arctic Amplification; AWI_PhyOce; Binary Object; Binary Object (File Size); File content; FRAM; Fram Strait; FRontiers in Arctic marine Monitoring; GPF 18-1_33; Iceland Sea; Maria S. Merian; MSM93; MSM93_103-1; MSM93_103-2; MSM93_105-1; MSM93_105-2; MSM93_106-1; MSM93_21-1; MSM93_49-1; MSM93_71-1; MSM93_97-1; MSM93_97-2; North Greenland Sea; Physical Oceanography @ AWI; TOPR; Towed Ocean Profiler; Triaxus
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Unknown
    Raw data from Triaxus topAWI (towed ocean profiler of the AWI) during RV POLARSTERN cruise PS131 (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-25
    Description: The MacArtney Triaxus extended version is a remotely operated towed vehicle (ROTV). It is towed behind the ship between 2 and 10 knots and can undulate in a saw tooth pattern between a few meters below the surface and 350m depth. The umbilical provides power and a fiber optic link to sensors that are mounted on the Triaxus (see SensorWeb). The data collected by the sensors were recorded on separate computers, one computer per sensor (including the flight information from the Triaxus itself). Thus, there are 7 separate data streams saved in separate folders plus a folder with metadata information about the different dives. During long Triaxus operations, new data files would be started approximately every 4 hours, because some of the employed software programs do not allow for backing up of the files while they are still being written to. A heavy weight (depressor) was employed directly behind the ship to pull the umbilical below the water line before sea ice can close in behind the ship. In addition to a few test dives, three transects across the marginal ice zone north of Svalbard (Yermak Plateau) were collected on PS131 in July/August 2022.
    Keywords: Arctic Ocean; ATWAICE; AWI_PhyOce; Binary Object; Binary Object (File Size); File content; FRAM; Fram Strait; FRontiers in Arctic marine Monitoring; Physical Oceanography @ AWI; Polarstern; PS131; PS131_117-1; PS131_18-1; PS131_36-2; PS131_52-1; PS131_55-1; PS131_64-1; PS131_86-1; PS131_90-1; PS131_95-1; TOPR; Towed Ocean Profiler; Triaxus
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 4
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    Unknown
    Physical Oceanography measured with CTD on Triaxus topAWI (towed ocean profiler of the AWI) during MERIAN cruise MSM93 (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-25
    Description: The MacArtney Triaxus extended version is a remotely operated towed vehicle (ROTV). It is towed behind the ship between 2 and 10 knots and can undulate in a saw tooth pattern between a few meters below the surface and 350m depth. The umbilical provides power and a fiber optic link to sensors that are mounted on the Triaxus (see SensorWeb). The different data streams require separate processing. Here we report the data from the Seabird 911+ dual pumped CTD system mounted on the Triaxus. The provided data are 0.5 second or 0.5 meter averages. The operations included profiling mode and constant depth mode. Depth data comes from the CTD's pressure sensor. Position data (latitude, longitude) comes from the ship's GPS system and is corrected for the length of the umbilical behind the ship. Standard Seabird Data processing (SBE Data Processing) were applied. A front in the open ocean region in the vicinity of the ice edge in Fram Strait was searched for with a ~100km long constant depth Triaxus transect on July 8. When a front had been found, it was surveyed in 3D by parallel UCTD sections and drifters were deployed. The front was followed until July 16 with the repeat of parallel UCTD and Triaxus sections. In total 17 sections were occupied with the Triaxus.
    Keywords: AC3; Arctic Amplification; Attenuation, optical beam transmission; AWI_PhyOce; CTD-TRIAXUS; DATE/TIME; Density, sigma-theta (0); DEPTH, water; Event label; Fluorometer; FRAM; Fram Strait; FRontiers in Arctic marine Monitoring; GPF 18-1_33; Iceland Sea; LATITUDE; LONGITUDE; Maria S. Merian; MSM93; MSM93_103-1; MSM93_103-2; MSM93_105-1; MSM93_105-2; MSM93_106-1; MSM93_21-1; MSM93_49-1; MSM93_71-1; MSM93_97-1; MSM93_97-2; North Greenland Sea; Number of observations; Oxygen; Oxygen saturation; Physical Oceanography @ AWI; Pressure, water; Radiation, photosynthetically active; Salinity; Temperature, water; Temperature, water, potential; TOPR; Towed Ocean Profiler; Triaxus
    Type: Dataset
    Format: text/tab-separated-values, 9056033 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 5
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    Unknown
    Raw data from UCTD (Underway CTD) during RV POLARSTERN cruise PS133/1 (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: The Teledyne Underway CTD was operated in tow-yo mode: the winch brake is disengaged and the probe is in approximate free-fall at 4m/s to 1m/s vertical speed collecting data for a cast. Then the brake is engaged and the probe is hauled in until it is within 10m horizontal behind the vessel at the sea surface. The winch is then disengaged and the next cast starts. A straight section is collected with the same probe in the water. At the end of the section, the probe is recovered. The data is recorded internally on the probe and only read out once the probe is back on deck. In addition to a test deployment, one long transect across the Georgia Basin northwest of the island of South Georgia was collected on PS133.1 in November 2022.
    Keywords: Antarctic Circumpolar Current; AWI_PhyOce; Binary Object; Binary Object (File Size); CTD, underway; CTD-UW; File content; Island Impact; Physical Oceanography @ AWI; Polarstern; PS133/1; PS133/1_10-10; PS133/1_12-2; PS133/1_2-1; PS133/1_8-9; PS133/1_9-24; Southern Ocean; underway CTD
    Type: Dataset
    Format: text/tab-separated-values, 2 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 6
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    Unknown
    Raw data from Triaxus topAWI (towed ocean profiler of the AWI) during RV POLARSTERN cruise PS133/1 (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: The MacArtney Triaxus extended version is a remotely operated towed vehicle (ROTV). It is towed behind the ship between 2 and 10 knots and can undulate in a saw tooth pattern between a few meters below the surface and 350m depth. The umbilical provides power and a fiber optic link to sensors that are mounted on the Triaxus (see SensorWeb). The data collected by the sensors were recorded on separate computers, one computer per sensor (including the flight information from the Triaxus itself). Thus, there are 7 separate data streams saved in separate folders plus a folder with metadata information about the different dives. During long Triaxus operations, new data files would be started approximately every 4 hours, because some of the employed software programs do not allow for backing up of the files while they are still being written to. In addition to a test dive, one long transect across the ACC at 25°W was collected on PS133.1 in October 2022.
    Keywords: Antarctic Circumpolar Current; AWI_PhyOce; Binary Object; Binary Object (File Size); File content; Island Impact; Physical Oceanography @ AWI; Polarstern; PS133/1; PS133/1_1-3; PS133/1_4-1; Southern Ocean; topAWI; TOPR; Towed Ocean Profiler; Triaxus
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 7
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    Unknown
    Raw data from Triaxus topAWI tows during POLARSTERN cruise PS113 (2019)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Keywords: ACS; ADCP; ANT-XXXIII/4; AWI_PhyOce; CT; CTD; Deep_SUNA; File content; File format; File name; File size; Physical Oceanography @ AWI; Polarstern; PS113; PS113-track; radiometer; Triaxus; Underway cruise track measurements; Uniform resource locator/link to file; USBL
    Type: Dataset
    Format: text/tab-separated-values, 40 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
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