[
    {
        "dataset_uid": "602000",
        "doi": "10.15784/602000",
        "landing_page": "https://www.usap-dc.org/view/dataset/602000",
        "title": "Quantitative Foraminiferal Assemblage Data from Barilari Bay, Antarctic Peninsula acquired during expedition NBP1001",
        "creator": "Ishman, Scott",
        "abstract": "The foraminiferal data presented here are from marine sediment core samples collected on the 2010 LARISSA cruise \u2013 NBP1001. The location of the 2 cores, NBP1001 JKC55 and JPC127, is outer Barilari Bay, western Antarctic Peninsula. The cores were paired, a shorter jumbo kasten core and a longer jumbo piston core. These data were generated by Ilona Matulaitis, under the direction of Scott Ishman (sishman@ku.edu), Kansas Geological Survey. All questions regarding the specifics of these data should be directed to Scott Ishman.\r\n<br/>\r\n<br/>Name Latitude Longitude Water depth (m) Core length (m)\r\n<br/>NBP1001 JKC55 65\u00ba45.38\u00baS 64\u00ba45.64\u00baW 652 4.26\r\n<br/>NBP1001 JPC127 65\u00ba45.36\u00baS 64\u00ba45.64\u00baW 653 8.68\r\n<br/>\r\n<br/>Two published papers describe these cores and present the radiocarbon-based chronology:\r\n<br/>\r\n<br/>Christ, A., Talaia-Murray, M., Domack, E., Leventer, A., Lavoie, C., Brachfeld, S., Yoo, K.-C., Gilbert, R., Jeong, S.-M., Wellner, J., 2014. Late Holocene glacial advance and ice shelf growth in Barilari Bay, Graham Land, West Antarctic Peninsula, Geological Society of America Bulletin, doi:10.1130/B31035.1.\r\n<br/>\r\n<br/>Reilly, B.T., Natter, C.J., Brachfeld, S.A., 2016. Holocene glacial activity in Barilari Bay, west Antarctic Peninsula, tracked by magnetic mineral assemblages: Linking ice, ocean, and atmosphere, Geochem. Geophys. Geosyst., 17, 4553\u20134565, doi:10.1002/2016GC006627.\r\n<br/>\r\n<br/>The marine sediment samples collected for assemblage analysis were washed through a\r\n<br/>63 micron sieve in order to retain foraminifera. The >63 micron sample residue was dried then picked through for foraminifera using a reflected light binocular stereomicroscope, to obtain at least 300 specimens per sample to ensure that full diversity within each sample was accounted for (Dennison and Hay, 1967). The picked foraminifera were identified to the species level, using the taxonomic concepts of Igarashi et al., 2001 and Echols, 1971.\r\n<br/>\r\n<br/>Dennison J.M., and Hay W.W., 1967, Estimating the needed sampling area for subaquatic ecologic studies. Journal of Paleontology, v. 41, p. 706-708.\r\n<br/>Echols, R.J., 1971, Distribution of foraminifera in sediments of the Scotia Sea area, Antarctic Waters, Antarctic Oceanology I, Antarctic Research Series, v. 15, p. 93-168.\r\n<br/>Igarashi, A., Numanami, H., Tsuchiya, Y., and Fukuchi, M., 2001, Bathymetric distribution of fossil foraminifera within marine sediment cores from the eastern part of L\u00fctzow-Holm Bay, East Antarctica, and its paleoceanographic implications, Marine Micropaleontology, v. 42, p. 125-162.\r\n<br/>\r\n<br/>\r\n<br/>\r\n<br/>",
        "release_date": null,
        "keywords": "Antarctica; Antarctic Peninsula; Cryosphere; Foraminifera; Holocene; NBP1001; Paleoclimate; Sediment Corer; Sedimentology",
        "locations": "Antarctic Peninsula; Antarctica",
        "persons": "Ishman, Scott",
        "projects": [
            {
                "proj_uid": "p0010135",
                "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine Ecosystems.",
                "landing_page": "https://www.usap-dc.org/view/project/p0010135"
            }
        ],
        "awards": "0732554 Ishman, Scott",
        "north": "-65.75",
        "south": "-65.76",
        "east": "-64.75",
        "west": "-64.76",
        "science_programs": "LARISSA",
        "nsf_funding_programs": "Antarctic Integrated System Science",
        "replaces": null,
        "replaced_by": null,
        "language_id": "English",
        "version": "1",
        "date_created": "Fri, 12 Dec 2025 00:00:00 -0000",
        "date_modified": "Fri, 19 Dec 2025 00:00:00 -0000"
    },
    {
        "dataset_uid": "601345",
        "doi": "10.1594/IEDA/321463",
        "landing_page": "https://www.usap-dc.org/view/dataset/601345",
        "title": "Processed CTD Data from the Larsen Ice Shelf in Antarctica acquired during the Nathaniel B. Palmer expedition NBP1001",
        "creator": "Huber, Bruce; Gordon, Arnold",
        "abstract": "This data set was acquired with a Sea-Bird SBE 9Plus CTD during Nathaniel B. Palmer expedition NBP1001 conducted in 2010 (Chief Scientist: Dr. Eugene Domack; Investigator(s): Dr. Bruce Huber and Dr. Arnold Gordon). These data files are of Matlab Binary format and include Temperature, Current Measurement, and Salinity data and were processed after data collection. Data were acquired as part of the project(s): Collaborative Research in IPY: Abrupt Environmental Change in the LARsen Ice Shelf System, Antarctica (LARISSA), and funding was provided by NSF grant(s): ANT07-32467.",
        "release_date": null,
        "keywords": "Antarctica; Antarctic Peninsula; CTD; CTD Data; LARISSA; Larsen Ice Shelf; NBP1001; Oceans; Physical Oceanography; R/v Nathaniel B. Palmer; Salinity; Temperature",
        "locations": "Antarctica; Antarctic Peninsula; Larsen Ice Shelf",
        "persons": "Huber, Bruce; Gordon, Arnold",
        "projects": [
            {
                "proj_uid": "p0000101",
                "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach -- Cryosphere and Oceans",
                "landing_page": "https://www.usap-dc.org/view/project/p0000101"
            },
            {
                "proj_uid": "p0000841",
                "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine and Quaternary Geosciences",
                "landing_page": "https://www.usap-dc.org/view/project/p0000841"
            }
        ],
        "awards": "0732467 Domack, Eugene; 0732651 Gordon, Arnold",
        "north": "-60.0",
        "south": "-66.0",
        "east": "-55.0",
        "west": "-68.0",
        "science_programs": "LARISSA",
        "nsf_funding_programs": "Antarctic Integrated System Science; Antarctic Integrated System Science",
        "replaces": null,
        "replaced_by": null,
        "language_id": "English",
        "version": "1",
        "date_created": "Thu, 25 Jun 2020 00:00:00 -0000",
        "date_modified": "Thu, 25 Jun 2020 00:00:00 -0000"
    },
    {
        "dataset_uid": "601346",
        "doi": "10.1594/IEDA/321464",
        "landing_page": "https://www.usap-dc.org/view/dataset/601346",
        "title": "Processed ship-based LADCP Sonar Data from the Larsen Ice Shelf in Antarctica acquired during the Nathaniel B. Palmer expedition NBP1001",
        "creator": "Huber, Bruce; Gordon, Arnold",
        "abstract": "This data set was acquired with a ship-based LDEO LADCP Sonar during Nathaniel B. Palmer expedition NBP1001 conducted in 2010 (Chief Scientist: Dr. Eugene Domack; Investigator(s): Dr. Bruce Huber and Dr. Arnold Gordon). These data files are of Matlab Binary format and include Current Measurement data and were processed after data collection. Data were acquired as part of the project(s): Collaborative Research in IPY: Abrupt Environmental Change in the LARsen Ice Shelf System, Antarctica (LARISSA), and funding was provided by NSF grant(s): ANT07-32467.",
        "release_date": null,
        "keywords": "Antarctica; Antarctic Peninsula; Current Measurements; LADCP; Larsen Ice Shelf; NBP1001; Oceans; Physical Oceanography; R/v Nathaniel B. Palmer",
        "locations": "Antarctic Peninsula; Antarctica; Larsen Ice Shelf",
        "persons": "Huber, Bruce; Gordon, Arnold",
        "projects": [
            {
                "proj_uid": "p0000101",
                "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach -- Cryosphere and Oceans",
                "landing_page": "https://www.usap-dc.org/view/project/p0000101"
            },
            {
                "proj_uid": "p0000841",
                "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine and Quaternary Geosciences",
                "landing_page": "https://www.usap-dc.org/view/project/p0000841"
            }
        ],
        "awards": "0732467 Domack, Eugene; 0732651 Gordon, Arnold",
        "north": "-60.0",
        "south": "-66.0",
        "east": "-55.0",
        "west": "-68.0",
        "science_programs": "LARISSA",
        "nsf_funding_programs": "Antarctic Integrated System Science; Antarctic Integrated System Science",
        "replaces": null,
        "replaced_by": null,
        "language_id": "English",
        "version": "1",
        "date_created": "Thu, 25 Jun 2020 00:00:00 -0000",
        "date_modified": "Thu, 25 Jun 2020 00:00:00 -0000"
    },
    {
        "dataset_uid": "601306",
        "doi": "10.1594/IEDA/320821",
        "landing_page": "https://www.usap-dc.org/view/dataset/601306",
        "title": "Macrofauna Species Abundance Raw Data from the Larsen Ice Shelf acquired during the Nathaniel B. Palmer expedition NBP1001",
        "creator": "Smith, Craig",
        "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; Antarctic Peninsula; Biota; Box Corer; LARISSA; Larsen Ice Shelf; Macrofauna; NBP1001; Oceans; R/v Nathaniel B. Palmer; Seafloor Sampling; Species Abundance",
        "locations": "Larsen Ice Shelf; Antarctica; Antarctic Peninsula; Larsen Ice Shelf",
        "persons": "Smith, Craig",
        "projects": [
            {
                "proj_uid": "p0000101",
                "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach -- Cryosphere and Oceans",
                "landing_page": "https://www.usap-dc.org/view/project/p0000101"
            }
        ],
        "awards": "0732711 Smith, Craig",
        "north": "-61.0",
        "south": "-67.8",
        "east": "-55.0",
        "west": "-69.0",
        "science_programs": "LARISSA",
        "nsf_funding_programs": "Antarctic Organisms and Ecosystems",
        "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": "601305",
        "doi": "10.1594/IEDA/320825",
        "landing_page": "https://www.usap-dc.org/view/dataset/601305",
        "title": "Megafauna Species Abundance Raw Data from the Larsen Ice Shelf acquired during the Nathaniel B. Palmer expedition NBP1001",
        "creator": "Smith, Craig",
        "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; Antarctic Peninsula; Biota; Box Corer; LARISSA; Larsen Ice Shelf; Macrofauna; Megafauna; NBP1001; Oceans; R/v Nathaniel B. Palmer; Seafloor Sampling; Species Abundance",
        "locations": "Antarctic Peninsula; Antarctica; Larsen Ice Shelf",
        "persons": "Smith, Craig",
        "projects": [
            {
                "proj_uid": "p0000101",
                "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach -- Cryosphere and Oceans",
                "landing_page": "https://www.usap-dc.org/view/project/p0000101"
            }
        ],
        "awards": "0732711 Smith, Craig",
        "north": "-61.0",
        "south": "-67.8",
        "east": "-55.0",
        "west": "-69.0",
        "science_programs": "LARISSA",
        "nsf_funding_programs": "Antarctic Organisms and Ecosystems",
        "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": "600073",
        "doi": "10.15784/600073",
        "landing_page": "https://www.usap-dc.org/view/dataset/600073",
        "title": "Abrupt Environmental Change in the Larsen Ice Shelf System (LARISSA) - Marine Ecosystems",
        "creator": "Vernet, Maria",
        "abstract": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine Ecosystems. A profound transformation in ecosystem structure and function is occurring in coastal waters of the western Weddell Sea, with the collapse of the Larsen B ice shelf. This transformation appears to be yielding a redistribution of energy flow between chemoautotrophic and photosynthetic production, and to be causing the rapid demise of the extraordinary seep ecosystem discovered beneath the ice shelf. This event provides an ideal opportunity to examine fundamental aspects of ecosystem transition associated with climate change. We propose to test the following hypotheses to elucidate the transformations occurring in marine ecosystems as a consequence of the Larsen B collapse: (1) The biogeographic isolation and sub-ice shelf setting of the Larsen B seep has led to novel habitat characteristics, chemoautotrophically dependent taxa and functional adaptations. (2) Benthic communities beneath the former Larsen B ice shelf are fundamentally different from assemblages at similar depths in the Weddell sea-ice zone, and resemble oligotrophic deep-sea communities. Larsen B assemblages are undergoing rapid change. (3) The previously dark, oligotrophic waters of the Larsen B embayment now support a thriving phototrophic community, with production rates and phytoplankton composition similar to other productive areas of the Weddell Sea. To document rapid changes occurring in the Larsen B ecosystem, we will use a remotely operated vehicle, shipboard samplers, and moored sediment traps. We will characterize microbial, macrofaunal and megafaunal components of the seep community; evaluate patterns of surface productivity, export flux, and benthic faunal composition in areas previously covered by the ice shelf, and compare these areas to the open sea-ice zone. These changes will be placed within the geological, glaciological and climatological context that led to ice-shelf retreat, through companion research projects funded in concert with this effort. Together these projects will help predict the likely consequences of ice-shelf collapse to marine ecosystems in other regions of Antarctica vulnerable to climate change. The research features international collaborators from Argentina, Belgium, Canada, Germany, Spain and the United Kingdom. The broader impacts include participation of a science writer; broadcast of science segments by members of the Jim Lehrer News Hour (Public Broadcasting System); material for summer courses in environmental change; mentoring of graduate students and postdoctoral fellows; and showcasing scientific activities and findings to students and public through podcasts.\n",
        "release_date": null,
        "keywords": "Antarctica; Antarctic Peninsula; Araon1304; Biota; LARISSA; Larsen B Ice Shelf; NBP1001; NBP1203; Oceans; Physical Oceanography; Southern Ocean; Weddell Sea",
        "locations": "Southern Ocean; Weddell Sea; Antarctica; Antarctic Peninsula; Larsen B Ice Shelf",
        "persons": "Vernet, Maria",
        "projects": [
            {
                "proj_uid": "p0010135",
                "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine Ecosystems.",
                "landing_page": "https://www.usap-dc.org/view/project/p0010135"
            }
        ],
        "awards": "0732983 Vernet, Maria",
        "north": "-62.0",
        "south": "-70.0",
        "east": "-59.0",
        "west": "-66.0",
        "science_programs": "LARISSA",
        "nsf_funding_programs": null,
        "replaces": null,
        "replaced_by": null,
        "language_id": "English",
        "version": "1",
        "date_created": "Wed, 01 Jan 2014 00:00:00 -0000",
        "date_modified": "Wed, 01 Jan 2014 00:00:00 -0000"
    }
]