{"dp_type": "Dataset", "free_text": "Borehole Logging"}
[{"awards": "1142167 Pettit, Erin", "bounds_geometry": ["POINT(-180 -90)"], "date_created": "Mon, 04 May 2020 00:00:00 GMT", "description": "Acoustic Televiewer measures borehole shape and tilt. These data were collected to study detailed borehole deformation with respect to ice properties to expand our understanding of the flow law for ice. ", "east": -180.0, "geometry": ["POINT(-180 -90)"], "keywords": "Acoustic Televiewer; Anisotropy; Antarctica; Borehole Logging; Deformation; Glaciers/ice Sheet; Glaciers/Ice Sheet; Glaciology; Ice Core Records; Ice Flow; Snow/ice; Snow/Ice; South Pole; SPICEcore", "locations": "Antarctica; South Pole", "north": -90.0, "nsf_funding_programs": "Antarctic Glaciology", "persons": "Pettit, Erin", "project_titles": "Collaborative Research: VeLveT Ice - eVoLution of Fabric and Texture in Ice at WAIS Divide, West Antarctica", "projects": [{"proj_uid": "p0010098", "repository": "USAP-DC", "title": "Collaborative Research: VeLveT Ice - eVoLution of Fabric and Texture in Ice at WAIS Divide, West Antarctica"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "SPICEcore", "south": -90.0, "title": "South Pole (SPICEcore) Borehole Deformation", "uid": "601315", "west": -180.0}, {"awards": "1144192 Tulaczyk, Slawek", "bounds_geometry": ["POINT(162.2673 -77.722528)"], "date_created": "Wed, 28 Nov 2018 00:00:00 GMT", "description": "", "east": 162.2673, "geometry": ["POINT(162.2673 -77.722528)"], "keywords": "Antarctica; Borehole; Borehole Logging; Glaciers/ice Sheet; Glaciers/Ice Sheet; Glaciology; Ice Temperature; Snow/ice; Snow/Ice; Temperature; Temperature Profiles", "locations": "Antarctica", "north": -77.722528, "nsf_funding_programs": "Antarctic Integrated System Science", "persons": "Tulaczyk, Slawek", "project_titles": "Collaborative Research: MIDGE: Minimally Invasive Direct Glacial Exploration of Biogeochemistry, Hydrology and Glaciology of Blood Falls, McMurdo Dry Valleys", "projects": [{"proj_uid": "p0000002", "repository": "USAP-DC", "title": "Collaborative Research: MIDGE: Minimally Invasive Direct Glacial Exploration of Biogeochemistry, Hydrology and Glaciology of Blood Falls, McMurdo Dry Valleys"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -77.722528, "title": "Ice Temperature in Shallow Boreholes Near Blood Falls at the Terminus of Taylor Glacier, McMurdo Dry Valleys, Antarctica", "uid": "601139", "west": 162.2673}, {"awards": "1142085 Alley, Richard", "bounds_geometry": ["POLYGON((0 -75,5.489 -75,10.978 -75,16.467 -75,21.956 -75,27.445 -75,32.934 -75,38.423 -75,43.912 -75,49.401 -75,54.89 -75,54.89 -75.763,54.89 -76.526,54.89 -77.289,54.89 -78.052,54.89 -78.815,54.89 -79.578,54.89 -80.341,54.89 -81.104,54.89 -81.867,54.89 -82.63,49.401 -82.63,43.912 -82.63,38.423 -82.63,32.934 -82.63,27.445 -82.63,21.956 -82.63,16.467 -82.63,10.978 -82.63,5.489 -82.63,0 -82.63,0 -81.867,0 -81.104,0 -80.341,0 -79.578,0 -78.815,0 -78.052,0 -77.289,0 -76.526,0 -75.763,0 -75))"], "date_created": "Tue, 05 Sep 2017 00:00:00 GMT", "description": "", "east": 54.89, "geometry": ["POINT(27.445 -78.815)"], "keywords": "Antarctica; Borehole Logging; Dronning Maud Land; Firn; Glaciers/ice Sheet; Glaciers/Ice Sheet; Glaciology; Physical Properties; Snow; Temperature", "locations": "Antarctica; Dronning Maud Land", "north": -75.0, "nsf_funding_programs": "Antarctic Glaciology", "persons": "Muto, Atsu", "project_titles": "Revealing Late Holocence Climate Variability in Antarctica from Borehole Paleothermometry", "projects": [{"proj_uid": "p0000440", "repository": "USAP-DC", "title": "Revealing Late Holocence Climate Variability in Antarctica from Borehole Paleothermometry"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -82.63, "title": "Firn-temperature time series in Dronning Maud Land, East Antarctica", "uid": "601050", "west": 0.0}, {"awards": "1043167 White, James", "bounds_geometry": ["POINT(-112.08 -79.47)"], "date_created": "Fri, 01 Jan 2016 00:00:00 GMT", "description": "This award supports a project to contribute one of the cornerstone analyses, stable isotopes of ice (Delta-D, Delta-O18) to the ongoing West Antarctic Ice Sheet Divide (WAIS) deep ice core. The WAIS Divide drilling project, a multi-institution project to obtain a continuous high resolution ice core record from central West Antarctica, reached a depth of 2560 m in early 2010; it is expected to take one or two more field seasons to reach the ice sheet bed (~3300 m), plus an additional four seasons for borehole logging and other activities including proposed replicate coring. The current proposal requests support to complete analyses on the WAIS Divide core to the base, where the age will be ~100,000 years or more. These analyses will form the basis for the investigation of a number of outstanding questions in climate and glaciology during the last glacial period, focused on the dynamics of the West Antarctic Ice Sheet and the relationship of West Antarctic climate to that of the Northern polar regions, the tropical Pacific, and the rest of the globe, on time scales ranging from years to tens of thousands of years. One new aspect of this work is the growing expertise at the University of Washington in climate modeling with isotope-tracer-enabled general circulation models, which will aid in the interpretation of the data. Another major new aspect is the completion and use of a high-resolution, semi-automated sampling system at the University of Colorado, which will permit the continuous analysis of isotope ratios via laser spectroscopy, at an effective resolution of ~2 cm or less, providing inter-annual time resolution for most of the core. Because continuous flow analyses of stable ice isotopes is a relatively new measurement, we will complement them with parallel measurements, every ~10-20 m, using traditional discrete sampling and analysis by mass spectrometry at the University of Washington. The intellectual merit and the overarching goal of the work are to see Inland WAIS become the reference ice isotope record for West Antarctica. The broader impacts of the work are that the data generated in this project pertain directly to policy-relevant and immediate questions of the stability of the West Antarctic ice sheet, and thus past and future changes in sea level, as well as the nature of climate change in the high southern latitudes. The project will also contribute to the development of modern isotope analysis techniques using laser spectroscopy, with applications well beyond ice cores. The project will involve a graduate student and postdoc who will work with both P.I.s, and spend time at both institutions. Data will be made available rapidly through the Antarctic Glaciological Data Center, for use by other researchers and the public.", "east": -112.08, "geometry": ["POINT(-112.08 -79.47)"], "keywords": "Antarctica; Geochemistry; Glaciers/ice Sheet; Glaciers/Ice Sheet; Glaciology; Ice Core Records; Isotope; Paleoclimate; Snow Accumulation; WAIS Divide; WAIS Divide Ice Core", "locations": "Antarctica; WAIS Divide", "north": -79.47, "nsf_funding_programs": null, "persons": "White, James; Morris, Valerie; Vaughn, Bruce; Jones, Tyler R.", "project_titles": "Collaborative Research: Stable Isotopes of Ice in the Transition and Glacial Sections of the WAIS Divide Deep Ice Core", "projects": [{"proj_uid": "p0000078", "repository": "USAP-DC", "title": "Collaborative Research: Stable Isotopes of Ice in the Transition and Glacial Sections of the WAIS Divide Deep Ice Core"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "WAIS Divide Ice Core", "south": -79.47, "title": "Stable Isotopes of Ice in the Transition and Glacial Sections of the WAIS Divide Deep Ice Core", "uid": "600169", "west": -112.08}]
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| Dataset Title/Abstract/Map | NSF Award(s) | Date Created | PIs / Scientists | Project Links | Abstract | Bounds Geometry | Geometry | Selected | Visible |
|---|---|---|---|---|---|---|---|---|---|
|
South Pole (SPICEcore) Borehole Deformation
|
1142167 |
2020-05-04 | Pettit, Erin |
Collaborative Research: VeLveT Ice - eVoLution of Fabric and Texture in Ice at WAIS Divide, West Antarctica |
Acoustic Televiewer measures borehole shape and tilt. These data were collected to study detailed borehole deformation with respect to ice properties to expand our understanding of the flow law for ice. | ["POINT(-180 -90)"] | ["POINT(-180 -90)"] | false | false |
|
Ice Temperature in Shallow Boreholes Near Blood Falls at the Terminus of Taylor Glacier, McMurdo Dry Valleys, Antarctica
|
1144192 |
2018-11-28 | Tulaczyk, Slawek |
Collaborative Research: MIDGE: Minimally Invasive Direct Glacial Exploration of Biogeochemistry, Hydrology and Glaciology of Blood Falls, McMurdo Dry Valleys |
["POINT(162.2673 -77.722528)"] | ["POINT(162.2673 -77.722528)"] | false | false | |
|
Firn-temperature time series in Dronning Maud Land, East Antarctica
|
1142085 |
2017-09-05 | Muto, Atsu |
Revealing Late Holocence Climate Variability in Antarctica from Borehole Paleothermometry |
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|
Stable Isotopes of Ice in the Transition and Glacial Sections of the WAIS Divide Deep Ice Core
|
1043167 |
2016-01-01 | White, James; Morris, Valerie; Vaughn, Bruce; Jones, Tyler R. |
Collaborative Research: Stable Isotopes of Ice in the Transition and Glacial Sections of the WAIS Divide Deep Ice Core |
This award supports a project to contribute one of the cornerstone analyses, stable isotopes of ice (Delta-D, Delta-O18) to the ongoing West Antarctic Ice Sheet Divide (WAIS) deep ice core. The WAIS Divide drilling project, a multi-institution project to obtain a continuous high resolution ice core record from central West Antarctica, reached a depth of 2560 m in early 2010; it is expected to take one or two more field seasons to reach the ice sheet bed (~3300 m), plus an additional four seasons for borehole logging and other activities including proposed replicate coring. The current proposal requests support to complete analyses on the WAIS Divide core to the base, where the age will be ~100,000 years or more. These analyses will form the basis for the investigation of a number of outstanding questions in climate and glaciology during the last glacial period, focused on the dynamics of the West Antarctic Ice Sheet and the relationship of West Antarctic climate to that of the Northern polar regions, the tropical Pacific, and the rest of the globe, on time scales ranging from years to tens of thousands of years. One new aspect of this work is the growing expertise at the University of Washington in climate modeling with isotope-tracer-enabled general circulation models, which will aid in the interpretation of the data. Another major new aspect is the completion and use of a high-resolution, semi-automated sampling system at the University of Colorado, which will permit the continuous analysis of isotope ratios via laser spectroscopy, at an effective resolution of ~2 cm or less, providing inter-annual time resolution for most of the core. Because continuous flow analyses of stable ice isotopes is a relatively new measurement, we will complement them with parallel measurements, every ~10-20 m, using traditional discrete sampling and analysis by mass spectrometry at the University of Washington. The intellectual merit and the overarching goal of the work are to see Inland WAIS become the reference ice isotope record for West Antarctica. The broader impacts of the work are that the data generated in this project pertain directly to policy-relevant and immediate questions of the stability of the West Antarctic ice sheet, and thus past and future changes in sea level, as well as the nature of climate change in the high southern latitudes. The project will also contribute to the development of modern isotope analysis techniques using laser spectroscopy, with applications well beyond ice cores. The project will involve a graduate student and postdoc who will work with both P.I.s, and spend time at both institutions. Data will be made available rapidly through the Antarctic Glaciological Data Center, for use by other researchers and the public. | ["POINT(-112.08 -79.47)"] | ["POINT(-112.08 -79.47)"] | false | false |
