[ { "dataset_uid": "601845", "doi": "10.15784/601845", "landing_page": "https://www.usap-dc.org/view/dataset/601845", "title": "NBP1402 diatom data", "creator": "Leventer, Amy; NBP1402 science party, ", "abstract": "Totten Glacier is the termination of the largest marine-based portion of the East Antarctic Ice Sheet, the Aurora Subglacial Basin. Yet little is known about the glacial evolution of the catchment and the factors influencing its present and past behavior. Due its remote location and heavy sea ice, the continental shelf in front of the Totten Glacier had not been comprehensively surveyed prior to this study. Satellite observations indicate that the Totten ice drainage system is thinning, and it has been hypothesized that this thinning is in response to undermelting by warm ocean waters over the continental shelf. While this process is observed elsewhere in Antarctica (e.g. the rapidly retreating Pine Island Glacier in West Antarctica), the Totten Glacier system is potentially Antarcticas most important glacial drainage system due to its large size; it is three times larger than any system in West Antarctica.
The main goals of this proposal were:
To generate multibeam bathymetric maps of the continental shelf proximal to the Totten Glacier system to understand the recent regional glacial history and to document the pathways, if any, for circumpolar deep water to move onto the shelf.
To conduct a physical oceanographic survey of the region proximal to the Totten Glacier system, to determine the presence, if any, of warm ocean waters over the continental shelf.
To conduct a seismic survey of the continental shelf to assess the long-term evolution of the glacial system in the Aurora Subglacial Basin.
To collect marine sediment cores to determine the regional deglacial to Holocene climate history and the influence of warm circumpolar deep water.", "release_date": null, "keywords": "Antarctica; Cryosphere; Diatom; NBP1402; Totten Glacier", "locations": "Antarctica; Totten Glacier; Antarctica", "persons": "Leventer, Amy; NBP1402 science party, ", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143836 Leventer, Amy", "north": "-66.0", "south": "-67.0", "east": "146.0", "west": "117.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": "601258", "replaced_by": null, "language_id": "English", "version": "3", "date_created": "Mon, 21 Oct 2024 00:00:00 -0000", "date_modified": "Tue, 29 Oct 2024 00:00:00 -0000" }, { "dataset_uid": "601440", "doi": "10.15784/601440", "landing_page": "https://www.usap-dc.org/view/dataset/601440", "title": "NBP1402 JPC43 Diatom Data", "creator": "Leventer, Amy", "abstract": "This dataset includes diatom data, both absolute abundance and relative contribution, for NBP1402 JPC43. ", "release_date": null, "keywords": "Antarctica; Diatom; Holocene; Jumbo Piston Corer; NBP1402; R/v Nathaniel B. Palmer; Sabrina Coast; Sediment Core Data; Species Abundance; Totten Glacier", "locations": "Totten Glacier; Sabrina Coast; Antarctica", "persons": "Leventer, Amy", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143836 Leventer, Amy", "north": "-66.0", "south": "-67.0", "east": "121.0", "west": "120.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Tue, 27 Apr 2021 00:00:00 -0000", "date_modified": "Tue, 27 Apr 2021 00:00:00 -0000" }, { "dataset_uid": "601308", "doi": "10.1594/IEDA/323565", "landing_page": "https://www.usap-dc.org/view/dataset/601308", "title": "Eddy covariance air-sea momentum, heat, and carbon dioxide fluxes in the Southern Ocean from the N.B. Palmer cruise NBP1402", "creator": "Miller, Scott; Butterworth, Brian", "abstract": "This dataset contains meteorological and air-sea flux data (momentum, heat, and CO2 fluxes; CO2 gas transfer velocity) collected during the the Nathaniel B. Palmer expedition NBP1402 conducted in 2014. The files are of XLS format.", "release_date": null, "keywords": "Air-Sea Flux; Air Temperature; Antarctica; Atmosphere; CO2; CO2 Concentrations; East Antarctica; Flux; Meteorology; NBP1402; Oceans; Relative Humidity; Salinity; Totten Glacier; Water Measurements; Water Temperature; Weather Station Data; Wind Direction; Wind Speed", "locations": "East Antarctica; Totten Glacier; Antarctica", "persons": "Miller, Scott; Butterworth, Brian", "projects": [ { "proj_uid": "p0010137", "title": "Air-Sea Fluxes of Momentum, Heat, and Carbon Dioxide at High Wind Speeds in the Southern Ocean", "landing_page": "https://www.usap-dc.org/view/project/p0010137" } ], "awards": "1043623 Miller, Scott", "north": "-47.0", "south": "-67.4", "east": "146.0", "west": "117.5", "science_programs": null, "nsf_funding_programs": "Antarctic Ocean and Atmospheric Sciences", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Fri, 01 May 2020 00:00:00 -0000", "date_modified": "Fri, 01 May 2020 00:00:00 -0000" }, { "dataset_uid": "601312", "doi": "10.1594/IEDA/324210", "landing_page": "https://www.usap-dc.org/view/dataset/601312", "title": "Near-bottom Videos from the Southern Ocean acquired during R/V Nathaniel B. Palmer expedition NBP1402", "creator": "Leventer, Amy; Post, Alexandra; Blankenship, Donald D.; Domack, Eugene Walter; Gulick, Sean; Huber, Bruce; Orsi, Alejandro; Shevenell, Amelia", "abstract": "This Biology Species Abundance data set was acquired with a ship-based Camera during Nathaniel B. Palmer expedition NBP1001 conducted in 2010 (Chief Scientist: Dr. Eugene Domack; Investigator: Dr. Craig Smith). The data file is in XLS format and includes Biology Species Abundance Biology data that has not been processed. The data was acquired as part of the project called Collaborative Research in IPY: Abrupt Environmental Change in the LARsen Ice Shelf System, Antarctica (LARISSA).", "release_date": null, "keywords": "Antarctica; Benthic Images; Camera; East Antarctica; Marine Geoscience; NBP1402; Photo/video; Photo/Video; R/v Nathaniel B. Palmer; Sabrina Coast; Totten Glacier; Video Data; Yoyo Camera", "locations": "East Antarctica; Totten Glacier; Antarctica; Sabrina Coast", "persons": "Leventer, Amy; Post, Alexandra; Blankenship, Donald D.; Domack, Eugene Walter; Gulick, Sean; Huber, Bruce; Orsi, Alejandro; Shevenell, Amelia", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143836 Leventer, Amy", "north": "-65.5", "south": "-67.0", "east": "121.0", "west": "118.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Fri, 01 May 2020 00:00:00 -0000", "date_modified": "Fri, 01 May 2020 00:00:00 -0000" }, { "dataset_uid": "601310", "doi": "10.1594/IEDA/324208", "landing_page": "https://www.usap-dc.org/view/dataset/601310", "title": "Bottom photos from the Southern Ocean acquired during R/V Nathaniel B. Palmer expedition NBP1402 ", "creator": "Leventer, Amy; Post, Alexandra; Domack, Eugene Walter; Gulick, Sean; Huber, Bruce; Orsi, Alejandro; Shevenell, Amelia", "abstract": "This data set was acquired with a Nikon D80 Digital Camera on a towed Yoyo camera system during R/V Nathaniel B. Palmer expedition NBP1402 conducted in 2014. These data files are of JPEG Image format and include Photograph data that have not been processed.", "release_date": null, "keywords": "Antarctica; Benthic Images; Benthos; East Antarctica; Marine Geoscience; NBP1402; Photo; Photo/video; Photo/Video; R/v Nathaniel B. Palmer; Totten Glacier; Yoyo Camera", "locations": "Totten Glacier; East Antarctica; Antarctica", "persons": "Leventer, Amy; Post, Alexandra; Domack, Eugene Walter; Gulick, Sean; Huber, Bruce; Orsi, Alejandro; Shevenell, Amelia", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143836 Leventer, Amy", "north": "-65.5", "south": "-67.0", "east": "121.0", "west": "118.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Fri, 01 May 2020 00:00:00 -0000", "date_modified": "Fri, 01 May 2020 00:00:00 -0000" }, { "dataset_uid": "601148", "doi": "10.15784/601148", "landing_page": "https://www.usap-dc.org/view/dataset/601148", "title": "AU1402 mooring data", "creator": "Orsi, Alejandro", "abstract": "An array of three moorings (M1-M3) with current meters, temperature, conductivity, and pressure (TCP) recorders were deployed along the eastern flank of the continental shelf off Sabrina Coast, at the main path of the Antarctic Coastal Current indicated by the uCTD data collected earlier during the cruise.\r\n\r\nThese three US mooring were deployed at the 625-m (M1), 620-m (M2) and 1051-m (M3) isobaths.\r\n M1 was recovered on 25 February 2014, with a full data return from all of its instruments; whereas M2 and M3 were recovered in early 2015 on board of the Australian RVI Aurora Australis next year (cruise AU1402).\r\n\r\nThe location and schematics of the mooring array design is described below, and also provided among the uploaded files.\r\n", "release_date": null, "keywords": "Antarctica; Au1402; Mooring; NBP1402; Oceans; Ocean Temperature; Physical Oceanography; R/v Aurora Australis; R/v Nathaniel B. Palmer; Sabrina Coast; Salinity; Southern Ocean; Temperature", "locations": "Antarctica; Sabrina Coast; Southern Ocean", "persons": "Orsi, Alejandro", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1313826 Orsi, Alejandro", "north": "-66.0", "south": "-67.0", "east": "122.0", "west": "119.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Mon, 24 Dec 2018 00:00:00 -0000", "date_modified": "Mon, 24 Dec 2018 00:00:00 -0000" }, { "dataset_uid": "601147", "doi": "10.15784/601147", "landing_page": "https://www.usap-dc.org/view/dataset/601147", "title": "AU1402 Final UCTD data", "creator": "Orsi, Alejandro", "abstract": "Underway Salinity (Conductivity), Temperature, Depth (Pressure) profiles from AU1402, final, reduced, quality control version. Data are reported as an ascii table suitable for import to Ocean Data View. ", "release_date": null, "keywords": "Antarctica; CTD Data; NBP1402; Ocean Temperature; Physical Oceanography; Sabrina Coast; Salinity; Southern Ocean; Temperature; Underway CTD", "locations": "Sabrina Coast; Southern Ocean; Antarctica", "persons": "Orsi, Alejandro", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143833 Orsi, Alejandro", "north": "-66.0", "south": "-67.0", "east": "122.0", "west": "119.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Mon, 24 Dec 2018 00:00:00 -0000", "date_modified": "Mon, 24 Dec 2018 00:00:00 -0000" }, { "dataset_uid": "601146", "doi": "10.15784/601146", "landing_page": "https://www.usap-dc.org/view/dataset/601146", "title": "NBP1402 Final UCTD data", "creator": "Orsi, Alejandro", "abstract": "Underway Salinity (Conductivity), Temperature, Depth (Pressure) profiles from NBP1402, final, reduced, quality control version. Data are reported as an ascii table suitable for import to Ocean Data View. ", "release_date": null, "keywords": "Antarctica; CTD Data; NBP1402; Oceans; Ocean Temperature; Physical Oceanography; R/v Nathaniel B. Palmer; Sabrina Coast; Salinity; Southern Ocean; Temperature", "locations": "Southern Ocean; Sabrina Coast; Antarctica", "persons": "Orsi, Alejandro", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143833 Orsi, Alejandro", "north": "-64.0", "south": "-68.0", "east": "146.0", "west": "117.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Sun, 23 Dec 2018 00:00:00 -0000", "date_modified": "Sun, 23 Dec 2018 00:00:00 -0000" }, { "dataset_uid": "601068", "doi": "10.15784/601068", "landing_page": "https://www.usap-dc.org/view/dataset/601068", "title": "NBP1402 Lowered ADCP data", "creator": "Huber, Bruce; NBP1402 science party, ", "abstract": "Lowered Acoustic Doppler Current Profiler (LADCP) data collected concurrently with 15 CTD profiles during NBP1402. The LADCP acquires profiles of water current, expressed as U and V components (E-W and N-S).", "release_date": null, "keywords": "ADCP Acoustic Doppler Current Profiler; Antarctica; NBP1402; Oceans; Physical Oceanography; Sabrina Coast; Sample/collection Description; Sample/Collection Description; Southern Ocean", "locations": "Southern Ocean; Antarctica; Sabrina Coast", "persons": "Huber, Bruce", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143834 Huber, Bruce", "north": "-66.0", "south": "-67.0", "east": "146.0", "west": "117.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Wed, 15 Nov 2017 00:00:00 -0000", "date_modified": "Wed, 15 Nov 2017 00:00:00 -0000" }, { "dataset_uid": "601069", "doi": "10.15784/601069", "landing_page": "https://www.usap-dc.org/view/dataset/601069", "title": "Sabrina Coast mooring data - sediment trap mooring 2014", "creator": "Huber, Bruce; NBP1402 science party, ", "abstract": "Time series of temperature and salinity from a sediment trap mooring deployed during NBP1402 on 04 March 2014 at 66S 11, 122 E 30.2, depth 547 m. The mooring was recovered from Aurora Australis on 26 December 2014 ", "release_date": null, "keywords": "Antarctica; Mooring; NBP1402; Oceans; Physical Oceanography; Sabrina Coast; Sample/collection Description; Sample/Collection Description; Southern Ocean", "locations": "Southern Ocean; Antarctica; Sabrina Coast", "persons": "Huber, Bruce", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143834 Huber, Bruce", "north": "-66.2", "south": "-66.2", "east": "120.5", "west": "120.5", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Wed, 15 Nov 2017 00:00:00 -0000", "date_modified": "Wed, 15 Nov 2017 00:00:00 -0000" }, { "dataset_uid": "601067", "doi": "10.15784/601067", "landing_page": "https://www.usap-dc.org/view/dataset/601067", "title": "NBP1402 Final CTD data", "creator": "Huber, Bruce; NBP1402 science party, ", "abstract": "Conductivity, Temperature, Depth (CTD) profiles from NBP1402, final, calibrated version. Data are reported as an ascii table suitable for import to Ocean Data View.", "release_date": null, "keywords": "Antarctica; CTD Data; NBP1402; Oceans; Physical Oceanography; Sabrina Coast; Sample/collection Description; Sample/Collection Description; Southern Ocean", "locations": "Sabrina Coast; Antarctica; Southern Ocean", "persons": "Huber, Bruce", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143834 Huber, Bruce", "north": "-66.0", "south": "-67.0", "east": "146.0", "west": "117.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Fri, 10 Nov 2017 00:00:00 -0000", "date_modified": "Fri, 10 Nov 2017 00:00:00 -0000" }, { "dataset_uid": "601046", "doi": "10.15784/601046", "landing_page": "https://www.usap-dc.org/view/dataset/601046", "title": "NBP14-02 JPC-54 and JPC-55 Pollen Assemblage data", "creator": "Smith, Catherine", "abstract": "Pollen assemblage data for Paleocene to early to middle Eocene sediments collected on Totten continental shelf, East Antarctica. ", "release_date": null, "keywords": "Antarctica; Biota; Marine Sediments; NBP1402; Oceans; Paleoclimate; Pollen; Sabrina Coast; Sediment Core; Southern Ocean; Totten Glacier", "locations": "Antarctica; Sabrina Coast; Totten Glacier; Southern Ocean", "persons": "Shevenell, Amelia; Smith, Catherine; Domack, Eugene Walter", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1430550 Domack, Eugene", "north": "-66.0", "south": "-70.0", "east": "121.0", "west": "120.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Fri, 18 Aug 2017 00:00:00 -0000", "date_modified": "Fri, 18 Aug 2017 00:00:00 -0000" }, { "dataset_uid": "601044", "doi": "10.15784/601044", "landing_page": "https://www.usap-dc.org/view/dataset/601044", "title": "NBP14-02 JPC-55 Bulk Sediment Carbon and Nitrogen data", "creator": "Smith, Catherine", "abstract": "Bulk sediment carbon and nitrogen data data for Paleocene sediments collected on Totten continental shelf, East Antarctica. ", "release_date": null, "keywords": "Antarctica; Carbon; Chemistry:sediment; Chemistry:Sediment; Geochemistry; Marine Sediments; NBP1402; Nitrogen; Oceans; Sabrina Coast; Sediment Core; Southern Ocean; Totten Glacier", "locations": "Antarctica; Totten Glacier; Southern Ocean; Sabrina Coast", "persons": "Smith, Catherine; Shevenell, Amelia; Domack, Eugene Walter", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1430550 Domack, Eugene", "north": "-66.0", "south": "-70.0", "east": "121.0", "west": "120.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Fri, 18 Aug 2017 00:00:00 -0000", "date_modified": "Fri, 18 Aug 2017 00:00:00 -0000" }, { "dataset_uid": "601042", "doi": "10.15784/601042", "landing_page": "https://www.usap-dc.org/view/dataset/601042", "title": "NBP14-02 JPC-55 foraminifer assemblage data", "creator": "Shevenell, Amelia", "abstract": "Foraminifer assemblage data for Paleocene sediments collected on Totten continental shelf, East Antarctica.", "release_date": null, "keywords": "Antarctica; Biota; Continental Margin; Foraminifera; NBP1402; Oceans; Paleoclimate; Sabrina Coast; Sample/collection Description; Sample/Collection Description; Southern Ocean; Totten Glacier", "locations": "Totten Glacier; Sabrina Coast; Southern Ocean; Antarctica", "persons": "Shevenell, Amelia; Leventer, Amy", "projects": [ { "proj_uid": "p0000008", "title": "Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics", "landing_page": "https://www.usap-dc.org/view/project/p0000008" } ], "awards": "1143836 Leventer, Amy", "north": "-66.0", "south": "-70.0", "east": "121.0", "west": "120.0", "science_programs": null, "nsf_funding_programs": "Antarctic Integrated System Science", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Fri, 18 Aug 2017 00:00:00 -0000", "date_modified": "Fri, 18 Aug 2017 00:00:00 -0000" } ]