{"dp_type": "Dataset", "free_text": "Bubble Number Density"}
[{"awards": "2149518 Fudge, Tyler; 2019719 Brook, Edward", "bounds_geometry": ["POINT(159.356 -76.73)"], "date_created": "Fri, 19 Dec 2025 00:00:00 GMT", "description": "These data cover several depth regimes from the ALHIC1901 core from the Allan Hills Blue Ice Area, Antarctica. We derived several bubble characteristics from 3D Computer Tomography analysis, such as bubble size, elongation (aspect ratio), number density and porosity. These data are useful for understanding the current deformation at the ALHIC1901 site impacting the preserved climate record.", "east": 159.356, "geometry": ["POINT(159.356 -76.73)"], "keywords": "Air Bubbles; Allan Hills; Antarctica; Bubble Number Density; Cryosphere; Ice Deformation; Microstructure; Porosity", "locations": "Allan Hills; Antarctica", "north": -76.73, "nsf_funding_programs": "Antarctic Glaciology; Antarctic Glaciology", "persons": "Stoll, Nicolas; Freitag, Johannes", "project_titles": "Center for Oldest Ice Exploration; Collaborative Research: Testing Next Generation Measurement Techniques for Reconstruction of Paleoclimate Archives from Thin or Disturbed Ice Cores Sections", "projects": [{"proj_uid": "p0010365", "repository": "USAP-DC", "title": "Collaborative Research: Testing Next Generation Measurement Techniques for Reconstruction of Paleoclimate Archives from Thin or Disturbed Ice Cores Sections"}, {"proj_uid": "p0010321", "repository": "USAP-DC", "title": "Center for Oldest Ice Exploration"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "COLDEX", "south": -76.73, "title": "Allan Hills ALHIC1901 ice core 3D bubble parameters", "uid": "602009", "west": 159.356}, {"awards": "2019719 Brook, Edward; 2149518 Fudge, Tyler", "bounds_geometry": ["POINT(159.356 -76.73)"], "date_created": "Fri, 19 Dec 2025 00:00:00 GMT", "description": "These data cover four depth regimes from the ALHIC1901 core from the Allan Hills Blue Ice Area, Antarctica. We derived several 2D bubble characteristics from analysing stinted images of ice sample thin sections, such as bubble size and elongation (aspect ratio) These data are useful for understanding the current deformation at the ALHIC1901 site impacting the preserved climate record.", "east": 159.356, "geometry": ["POINT(159.356 -76.73)"], "keywords": "Air Bubbles; Allan Hills; Antarctica; Bubble Number Density; Cryosphere; Ice Deformation; Microstructure; Porosity", "locations": "Antarctica; Allan Hills", "north": -76.73, "nsf_funding_programs": "Antarctic Glaciology; Antarctic Glaciology", "persons": "Stoll, Nicolas; Fudge, T. J.", "project_titles": "Center for Oldest Ice Exploration; Collaborative Research: Testing Next Generation Measurement Techniques for Reconstruction of Paleoclimate Archives from Thin or Disturbed Ice Cores Sections", "projects": [{"proj_uid": "p0010365", "repository": "USAP-DC", "title": "Collaborative Research: Testing Next Generation Measurement Techniques for Reconstruction of Paleoclimate Archives from Thin or Disturbed Ice Cores Sections"}, {"proj_uid": "p0010321", "repository": "USAP-DC", "title": "Center for Oldest Ice Exploration"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "COLDEX", "south": -76.73, "title": "Allan Hills ALHIC1901 ice core 2D bubble parameters", "uid": "602010", "west": 159.356}, {"awards": "2149518 Fudge, Tyler; 2019719 Brook, Edward", "bounds_geometry": ["POINT(159.356 -76.73)"], "date_created": "Fri, 19 Dec 2025 00:00:00 GMT", "description": "These data cover four depth regimes from the ALHIC1901 core from the Allan Hills Blue Ice Area, Antarctica. We derived crystal properties such as grain size and preferred orientation of the c-axis (fabric) via an Automated Fabric Analyser (G50 by Russelhead Instruments). These data are useful for understanding the current deformation at the ALHIC1901 site impacting the preserved climate record.", "east": 159.356, "geometry": ["POINT(159.356 -76.73)"], "keywords": "Air Bubbles; Allan Hills; Antarctica; Bubble Number Density; Cryosphere; Ice Deformation; Microstructure; Porosity", "locations": "Allan Hills; Antarctica", "north": -76.73, "nsf_funding_programs": "Antarctic Glaciology; Antarctic Glaciology", "persons": "Stoll, Nicolas", "project_titles": "Center for Oldest Ice Exploration; Collaborative Research: Testing Next Generation Measurement Techniques for Reconstruction of Paleoclimate Archives from Thin or Disturbed Ice Cores Sections", "projects": [{"proj_uid": "p0010365", "repository": "USAP-DC", "title": "Collaborative Research: Testing Next Generation Measurement Techniques for Reconstruction of Paleoclimate Archives from Thin or Disturbed Ice Cores Sections"}, {"proj_uid": "p0010321", "repository": "USAP-DC", "title": "Center for Oldest Ice Exploration"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "COLDEX", "south": -76.73, "title": "Allan Hills ALHIC1901 ice core fabric data", "uid": "602011", "west": 159.356}, {"awards": "1542778 Alley, Richard", "bounds_geometry": ["POLYGON((-180 -89,-144 -89,-108 -89,-72 -89,-36 -89,0 -89,36 -89,72 -89,108 -89,144 -89,180 -89,180 -89.1,180 -89.2,180 -89.3,180 -89.4,180 -89.5,180 -89.6,180 -89.7,180 -89.8,180 -89.9,180 -90,144 -90,108 -90,72 -90,36 -90,0 -90,-36 -90,-72 -90,-108 -90,-144 -90,-180 -90,-180 -89.9,-180 -89.8,-180 -89.7,-180 -89.6,-180 -89.5,-180 -89.4,-180 -89.3,-180 -89.2,-180 -89.1,-180 -89))"], "date_created": "Wed, 15 Jan 2025 00:00:00 GMT", "description": "This data set includes the bubble number-density data measured in the SPC14 South Pole Ice Core from depths of 160 m to 1200 m. Traditional bubble-section data are included measured from 53 samples taken at 20 m intervals (tab 1). Additionally, we include new micro-CT data from 11 new samples taken at 100 m intervals (tab 2). The data set also includes modeled temperature reconstructions based on the model developed by Spencer and others (2006) and Fegyveresi and others (2011). This data set also includes a tab for bubble sizes measured in the traditional bubble-sections.", "east": 180.0, "geometry": ["POINT(0 -89.999)"], "keywords": "Antarctic; Antarctica; Bubble Number Density; Cryosphere; Glaciers; Glaciology; Ice; Ice Core Data; Ice Core Records; NSF-ICF Microtome and Photography Stage; Paleoclimate; Physical Properties; Snow; South Pole", "locations": "Antarctic; Antarctica; South Pole; Antarctica", "north": -89.0, "nsf_funding_programs": "Antarctic Glaciology", "persons": "Fegyveresi, John", "project_titles": "Climate History and Flow Processes from Physical Analyses of the SPICECORE South Pole Ice Core", "projects": [{"proj_uid": "p0000141", "repository": "USAP-DC", "title": "Climate History and Flow Processes from Physical Analyses of the SPICECORE South Pole Ice Core"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "SPICEcore", "south": -90.0, "title": "South Pole Ice Core (SPC14) Bubble Number-Density Data", "uid": "601880", "west": -180.0}, {"awards": "1043528 Alley, Richard; 0539578 Alley, Richard", "bounds_geometry": ["POINT(-112.3 -79.43333333)"], "date_created": "Tue, 12 Nov 2019 00:00:00 GMT", "description": "This data set includes the fully updated (2017) bubble number-density measured at depths from 120 meters down to 1600 meters at 20-meter intervals in both horizontal and vertical samples. The data set also includes modeled temperature reconstructions based on the model developed by Spencer and others (2006) and Fegyveresi and others (2011). Data also includes tabs for bubble size and shape data.", "east": -112.3, "geometry": ["POINT(-112.3 -79.43333333)"], "keywords": "Antarctic; Antarctica; Bubble Number Density; Glaciers/ice Sheet; Glaciers/Ice Sheet; Glaciology; Ice; Ice Core Data; Ice Core Records; NSF-ICF Microtome and Photography Stage; Paleoclimate; Physical Properties; Snow/ice; Snow/Ice; WAIS Divide Ice Core; West Antarctic Ice Sheet", "locations": "Antarctic; West Antarctic Ice Sheet; Antarctica", "north": -79.43333333, "nsf_funding_programs": "Antarctic Earth Sciences; Antarctic Glaciology", "persons": "Fegyveresi, John; Alley, Richard; Spencer, Matthew; Fitzpatrick, Joan; Voigt, Donald E.", "project_titles": "Collaborative Research: Continued Study of Physical Properties of the WAIS Divide Deep Core; Collaborative Research: Physical Properties of the WAIS Divide Deep Core", "projects": [{"proj_uid": "p0000038", "repository": "USAP-DC", "title": "Collaborative Research: Physical Properties of the WAIS Divide Deep Core"}, {"proj_uid": "p0000027", "repository": "USAP-DC", "title": "Collaborative Research: Continued Study of Physical Properties of the WAIS Divide Deep Core"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "WAIS Divide Ice Core", "south": -79.43333333, "title": "Updated (2017) bubble number-density, size, shape, and modeled paleoclimate data", "uid": "601224", "west": -112.3}]
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| Dataset Title/Abstract/Map | NSF Award(s) | Date Created | PIs / Scientists | Project Links | Abstract | Bounds Geometry | Geometry | Selected | Visible |
|---|---|---|---|---|---|---|---|---|---|
|
Allan Hills ALHIC1901 ice core 3D bubble parameters
|
2149518 2019719 |
2025-12-19 | Stoll, Nicolas; Freitag, Johannes |
Collaborative Research: Testing Next Generation Measurement Techniques for Reconstruction of Paleoclimate Archives from Thin or Disturbed Ice Cores Sections Center for Oldest Ice Exploration |
These data cover several depth regimes from the ALHIC1901 core from the Allan Hills Blue Ice Area, Antarctica. We derived several bubble characteristics from 3D Computer Tomography analysis, such as bubble size, elongation (aspect ratio), number density and porosity. These data are useful for understanding the current deformation at the ALHIC1901 site impacting the preserved climate record. | ["POINT(159.356 -76.73)"] | ["POINT(159.356 -76.73)"] | false | false |
|
Allan Hills ALHIC1901 ice core 2D bubble parameters
|
2019719 2149518 |
2025-12-19 | Stoll, Nicolas; Fudge, T. J. |
Collaborative Research: Testing Next Generation Measurement Techniques for Reconstruction of Paleoclimate Archives from Thin or Disturbed Ice Cores Sections Center for Oldest Ice Exploration |
These data cover four depth regimes from the ALHIC1901 core from the Allan Hills Blue Ice Area, Antarctica. We derived several 2D bubble characteristics from analysing stinted images of ice sample thin sections, such as bubble size and elongation (aspect ratio) These data are useful for understanding the current deformation at the ALHIC1901 site impacting the preserved climate record. | ["POINT(159.356 -76.73)"] | ["POINT(159.356 -76.73)"] | false | false |
|
Allan Hills ALHIC1901 ice core fabric data
|
2149518 2019719 |
2025-12-19 | Stoll, Nicolas |
Collaborative Research: Testing Next Generation Measurement Techniques for Reconstruction of Paleoclimate Archives from Thin or Disturbed Ice Cores Sections Center for Oldest Ice Exploration |
These data cover four depth regimes from the ALHIC1901 core from the Allan Hills Blue Ice Area, Antarctica. We derived crystal properties such as grain size and preferred orientation of the c-axis (fabric) via an Automated Fabric Analyser (G50 by Russelhead Instruments). These data are useful for understanding the current deformation at the ALHIC1901 site impacting the preserved climate record. | ["POINT(159.356 -76.73)"] | ["POINT(159.356 -76.73)"] | false | false |
|
South Pole Ice Core (SPC14) Bubble Number-Density Data
|
1542778 |
2025-01-15 | Fegyveresi, John |
Climate History and Flow Processes from Physical Analyses of the SPICECORE South Pole Ice Core |
This data set includes the bubble number-density data measured in the SPC14 South Pole Ice Core from depths of 160 m to 1200 m. Traditional bubble-section data are included measured from 53 samples taken at 20 m intervals (tab 1). Additionally, we include new micro-CT data from 11 new samples taken at 100 m intervals (tab 2). The data set also includes modeled temperature reconstructions based on the model developed by Spencer and others (2006) and Fegyveresi and others (2011). This data set also includes a tab for bubble sizes measured in the traditional bubble-sections. | ["POLYGON((-180 -89,-144 -89,-108 -89,-72 -89,-36 -89,0 -89,36 -89,72 -89,108 -89,144 -89,180 -89,180 -89.1,180 -89.2,180 -89.3,180 -89.4,180 -89.5,180 -89.6,180 -89.7,180 -89.8,180 -89.9,180 -90,144 -90,108 -90,72 -90,36 -90,0 -90,-36 -90,-72 -90,-108 -90,-144 -90,-180 -90,-180 -89.9,-180 -89.8,-180 -89.7,-180 -89.6,-180 -89.5,-180 -89.4,-180 -89.3,-180 -89.2,-180 -89.1,-180 -89))"] | ["POINT(0 -89.999)"] | false | false |
|
Updated (2017) bubble number-density, size, shape, and modeled paleoclimate data
|
1043528 0539578 |
2019-11-12 | Fegyveresi, John; Alley, Richard; Spencer, Matthew; Fitzpatrick, Joan; Voigt, Donald E. |
Collaborative Research: Physical Properties of the WAIS Divide Deep Core Collaborative Research: Continued Study of Physical Properties of the WAIS Divide Deep Core |
This data set includes the fully updated (2017) bubble number-density measured at depths from 120 meters down to 1600 meters at 20-meter intervals in both horizontal and vertical samples. The data set also includes modeled temperature reconstructions based on the model developed by Spencer and others (2006) and Fegyveresi and others (2011). Data also includes tabs for bubble size and shape data. | ["POINT(-112.3 -79.43333333)"] | ["POINT(-112.3 -79.43333333)"] | false | false |
