[{"awards": "2019719 Brook, Edward", "bounds_geometry": ["POLYGON((0 -84,12 -84,24 -84,36 -84,48 -84,60 -84,72 -84,84 -84,96 -84,108 -84,120 -84,120 -84.6,120 -85.2,120 -85.8,120 -86.4,120 -87,120 -87.6,120 -88.2,120 -88.8,120 -89.4,120 -90,108 -90,96 -90,84 -90,72 -90,60 -90,48 -90,36 -90,24 -90,12 -90,0 -90,0 -89.4,0 -88.8,0 -88.2,0 -87.6,0 -87,0 -86.4,0 -85.8,0 -85.2,0 -84.6,0 -84))"], "date_created": "Mon, 01 Dec 2025 00:00:00 GMT", "description": "These data comprise the RINEX formatted GNSS observations for flights in the 2023-2024 COLDEX field campaign, as well as the raw Novatel SPAN logs with rotation and acceleration information. The survey aircraft, Basler C-FMKB, had three GPS antennas (MKB2, MKB3, and MKB4) mounted on each wing and on the tail, and a single GNSS antenna (MKB1) mounted on roof near the center of gravity of the aircraft. Multiple receivers can be on each antenna. Data was recorded by a Javad Quattro-G3D (JVD) on all four antennas at 1 Hz, and on the wing antennas at 10 Hz, the Novatel SPAN OEM4 (NVT) on MKB1 at 1 Hz, and two Topcon NET-G3A (TG3) on the tail and one wing at 10 Hz. A 2 Hz Trimble Net R5 on the ground was operated for most flights (ZWD1 at Williams Field, or ZSP1 at South Pole), along with high rate Earthscope data from South Pole Station (AMU2).\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eData is organized in a hierarchy with the following levels:\r\n\u003cbr/\u003e*Instrument type\r\n\u003cbr/\u003e*Flight\r\n\u003cbr/\u003e*Season\r\n\u003cbr/\u003e*Receiver (designated by antenna)\r\n\u003cbr/\u003e*Flight\r\n\u003cbr/\u003e*UTIG Stream name\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eASCII RINEX data are generated by UNAVCO\u2019s teqc program and include:\r\n\u003cbr/\u003e*nav - GPS Nav Data\r\n\u003cbr/\u003e*rnv - GLONASS Nav Data\r\n\u003cbr/\u003e*obs - GPS Observation data\r\n\u003cbr/\u003e\r\n\u003cbr/\u003e_________________________________________________________________________\r\n\u003cbr/\u003e\r\n\u003cbr/\u003eSPAN data are binary files containing both the NVT GPS data that is reformatted as RINEX above, but also IMU messages. Formats for these OEM4 data can be found at Novatel\u2019s website: https://hexagondownloads.blob.core.windows.net/public/Novatel/assets/Documents/Manuals/om-20000047/om-20000047.pdf", "east": 120.0, "geometry": ["POINT(60 -87)"], "keywords": "Aerogeophysics; Allan Hills; Antarctica; Beardmore Glacier; Cryosphere; David Glacier; Dome A; GPS Data; South Pole; South Pole Basin", "locations": "Antarctica; South Pole; Allan Hills; Beardmore Glacier; South Pole Basin; David Glacier; Dome A", "north": -84.0, "nsf_funding_programs": "Antarctic Glaciology", "persons": "Young, Duncan A.; Singh, Shivangini; Kerr, Megan E.; Buhl, Dillon P.; Ng, Gregory; Kempf, Scott D.; Blankenship, Donald D.; Young, Duncan", "project_titles": "Center for Oldest Ice Exploration", "projects": [{"proj_uid": "p0010321", "repository": "USAP-DC", "title": "Center for Oldest Ice Exploration"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -90.0, "title": "NSF COLDEX 2023-24 GNSS/IMU Level 1 instrument measurements from Dome A, East Antarctica", "uid": "601999", "west": 0.0}, {"awards": "1443690 Young, Duncan", "bounds_geometry": ["POLYGON((110 -68,113 -68,116 -68,119 -68,122 -68,125 -68,128 -68,131 -68,134 -68,137 -68,140 -68,140 -68.7,140 -69.4,140 -70.1,140 -70.8,140 -71.5,140 -72.2,140 -72.9,140 -73.6,140 -74.3,140 -75,137 -75,134 -75,131 -75,128 -75,125 -75,122 -75,119 -75,116 -75,113 -75,110 -75,110 -74.3,110 -73.6,110 -72.9,110 -72.2,110 -71.5,110 -70.8,110 -70.1,110 -69.4,110 -68.7,110 -68))"], "date_created": "Tue, 07 Jul 2020 00:00:00 GMT", "description": "These aerogeophysical data were collected during the seventh ICECAP field season in 2015-16, and interpreted as part of the SPICECAP project. They consist of 7 survey flights using a BT-67 Basler and the ICECAP aergeophysical suite. The flights were based out of Australia\u0027s Casey Station and France/Italy\u0027s Concordia Station in East Antarctica, as part of a focused survey of the \u0027Little Dome C\u0027, a region with a suspected 1.5 Ma ice core record. The Level 2 data here consist of ice thickness, bed elevation and surface and bed reflectivity data, bed specularity content data, unleveled magnetic anomaly data, unleveled gravity anomaly data, and laser altimetry. Formats are self documented text files parallel those used by ICECAP (found in the Operation IceBridge archive at the National Snow and Ice Data Center), GIMBLE (found at USAP-DC), EAGLE-ICECAPII (found at the Australian Antarctic Data Center) and David Glacier (found on Zenodo.org), with summary maps of included data in PNG format.", "east": 140.0, "geometry": ["POINT(125 -71.5)"], "keywords": "Aerogeophysics; Antarctica; Bed Elevation; Bed Reflectivity; Epica Dome C; Ice Thickness", "locations": "Antarctica; Epica Dome C", "north": -68.0, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "Young, Duncan A.; Roberts, Jason; Blankenship, Donald D.; van Ommen, Tas; Richter, Thomas; Greenbaum, Jamin; Cavitte, Marie G. P; Beem, Lucas H.; Quartini, Enrica; Tozer, Carly; Ng, Gregory; Habbal, Feras; Kempf, Scott D.; Ritz, Catherine", "project_titles": "Collaborative Research: Southern Plateau Ice-sheet Characterization and Evolution of the Central Antarctic Plate (SPICECAP)", "projects": [{"proj_uid": "p0010115", "repository": "USAP-DC", "title": "Collaborative Research: Southern Plateau Ice-sheet Characterization and Evolution of the Central Antarctic Plate (SPICECAP)"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": "Dome C Ice Core", "south": -75.0, "title": "ICECAP: High resolution survey of the Little Dome C region in support of the IPICS Old Ice goal", "uid": "601355", "west": 110.0}]

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Dataset Title/Abstract/Map	NSF Award(s)	Date Created	PIs / Scientists	Project Links	Abstract	Bounds Geometry	Geometry	Selected	Visible
NSF COLDEX 2023-24 GNSS/IMU Level 1 instrument measurements from Dome A, East Antarctica	2019719	2025-12-01	Young, Duncan A.; Singh, Shivangini; Kerr, Megan E.; Buhl, Dillon P.; Ng, Gregory; Kempf, Scott D.; Blankenship, Donald D.; Young, Duncan	Center for Oldest Ice Exploration	These data comprise the RINEX formatted GNSS observations for flights in the 2023-2024 COLDEX field campaign, as well as the raw Novatel SPAN logs with rotation and acceleration information. The survey aircraft, Basler C-FMKB, had three GPS antennas (MKB2, MKB3, and MKB4) mounted on each wing and on the tail, and a single GNSS antenna (MKB1) mounted on roof near the center of gravity of the aircraft. Multiple receivers can be on each antenna. Data was recorded by a Javad Quattro-G3D (JVD) on all four antennas at 1 Hz, and on the wing antennas at 10 Hz, the Novatel SPAN OEM4 (NVT) on MKB1 at 1 Hz, and two Topcon NET-G3A (TG3) on the tail and one wing at 10 Hz. A 2 Hz Trimble Net R5 on the ground was operated for most flights (ZWD1 at Williams Field, or ZSP1 at South Pole), along with high rate Earthscope data from South Pole Station (AMU2). <br/> <br/>Data is organized in a hierarchy with the following levels: <br/>Instrument type <br/>Flight <br/>Season <br/>Receiver (designated by antenna) <br/>Flight <br/>UTIG Stream name <br/> <br/>ASCII RINEX data are generated by UNAVCO’s teqc program and include: <br/>nav - GPS Nav Data <br/>rnv - GLONASS Nav Data <br/>*obs - GPS Observation data <br/> <br/>_________________________________________________________________________ <br/> <br/>SPAN data are binary files containing both the NVT GPS data that is reformatted as RINEX above, but also IMU messages. Formats for these OEM4 data can be found at Novatel’s website: https://hexagondownloads.blob.core.windows.net/public/Novatel/assets/Documents/Manuals/om-20000047/om-20000047.pdf	["POLYGON((0 -84,12 -84,24 -84,36 -84,48 -84,60 -84,72 -84,84 -84,96 -84,108 -84,120 -84,120 -84.6,120 -85.2,120 -85.8,120 -86.4,120 -87,120 -87.6,120 -88.2,120 -88.8,120 -89.4,120 -90,108 -90,96 -90,84 -90,72 -90,60 -90,48 -90,36 -90,24 -90,12 -90,0 -90,0 -89.4,0 -88.8,0 -88.2,0 -87.6,0 -87,0 -86.4,0 -85.8,0 -85.2,0 -84.6,0 -84))"]	["POINT(60 -87)"]	false	false
ICECAP: High resolution survey of the Little Dome C region in support of the IPICS Old Ice goal	1443690	2020-07-07	Young, Duncan A.; Roberts, Jason; Blankenship, Donald D.; van Ommen, Tas; Richter, Thomas; Greenbaum, Jamin; Cavitte, Marie G. P; Beem, Lucas H.; Quartini, Enrica; Tozer, Carly; Ng, Gregory; Habbal, Feras; Kempf, Scott D.; Ritz, Catherine	Collaborative Research: Southern Plateau Ice-sheet Characterization and Evolution of the Central Antarctic Plate (SPICECAP)	These aerogeophysical data were collected during the seventh ICECAP field season in 2015-16, and interpreted as part of the SPICECAP project. They consist of 7 survey flights using a BT-67 Basler and the ICECAP aergeophysical suite. The flights were based out of Australia's Casey Station and France/Italy's Concordia Station in East Antarctica, as part of a focused survey of the 'Little Dome C', a region with a suspected 1.5 Ma ice core record. The Level 2 data here consist of ice thickness, bed elevation and surface and bed reflectivity data, bed specularity content data, unleveled magnetic anomaly data, unleveled gravity anomaly data, and laser altimetry. Formats are self documented text files parallel those used by ICECAP (found in the Operation IceBridge archive at the National Snow and Ice Data Center), GIMBLE (found at USAP-DC), EAGLE-ICECAPII (found at the Australian Antarctic Data Center) and David Glacier (found on Zenodo.org), with summary maps of included data in PNG format.	["POLYGON((110 -68,113 -68,116 -68,119 -68,122 -68,125 -68,128 -68,131 -68,134 -68,137 -68,140 -68,140 -68.7,140 -69.4,140 -70.1,140 -70.8,140 -71.5,140 -72.2,140 -72.9,140 -73.6,140 -74.3,140 -75,137 -75,134 -75,131 -75,128 -75,125 -75,122 -75,119 -75,116 -75,113 -75,110 -75,110 -74.3,110 -73.6,110 -72.9,110 -72.2,110 -71.5,110 -70.8,110 -70.1,110 -69.4,110 -68.7,110 -68))"]	["POINT(125 -71.5)"]	false	false

USAP-DC

U.S. ANTARCTIC PROGRAM DATA CENTER

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