USAP-DC

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Support Office for Airborne Research 1 km sampled ice thickness data Data DOI: https://doi.org/10.15784/601588 Cite as Blankenship, D. D., Kempf, S. D., & Young, D. A. (2022) "Support Office for Airborne Research 1 km sampled ice thickness data" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601588. AMD - DIF Record(s) NSIDC-0240_1 Abstract These data represent the 1-km decimated version of the SOAR ice thickness data provided to the Bedmap2 project, collected as part of various projects between 1991 and 2001. It encompasses the Corridor Aerogeophysics of the South East Ross Zone (CASERTZ) surveys of the Byrd Subglacial Basin (BSB), Bindschadler Ice Stream (WAZ/TKD), and the upstream catchments of Kamb Ice Steam and Willians Ice Stream (IRE); targeted West Antarctic glaciology projects (IPB/WAZ/DVD/STI/LIV); corridors across the Transantarctic Mountains to South Pole (PPT) and Dome C (WLK); and a version of the Lake Vostok dataset (LVS). Data were collected as stacked log detected traces by the SOAR TUD IV system with an attached digitizer. The digitizer was significantly updated in 1997 (RTZ6). Data interpretation approaches can be found in Blankenship et al., 2001. Data is in ASCII format. Transects are separated by GMT style segment headers with the transect name. Columns are: 1. Year 2. Day of Year 3. Seconds of Day 4. Longitude (degrees, WGS-84) 5. Latitude (degrees, WGS-84) 6. Easting (meters, EPSG 3031; Polar Stereographic with true scale at 71˚S) 7. Northing (meters, EPSG 3031; Polar Stereographic with true scale at 71˚S) 8. Surface Elevation (meters, WGS-84) - derived where possible from laser data 9. Ice thickness (meters, using a speed of light in air of 299705000 m/s and a refractive index of 1.78; no firn correction) 10. Bed Elevation (meters, WGS-84) - column 8 minus column 9 11. The transect name formatted by Project/Set/Transect Creator(s): Blankenship, Donald D.; Young, Duncan A.; Kempf, Scott D. Date Created: 2022-07-24 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: -100, East: 100, South: -90, North: -75 Temporal Extent(s) Start: 1991-01-01 - End: 2001-12-31 Award(s) NSF 9319379 Version: 1 References Blankenship, Donald D., Morse, David, Finn, C. A., Bell, R. E., Peters, M. E., Kempf, S. D., Hodge, S. M., Studinger, M., Behrendt, J. C., and Brozena, J. M.(2001), Geological Controls On The Initiation Of Rapid Basal Motion For West Antarctic Ice Streams: A Geophysical Perspective Including New Airborne Radar Sounding And Laser Altimetry Results, The West Antarctic Ice Sheet: Behavior and Environment 105-121 (doi:https://doi.org/10.1029/AR077p0105) Carter, S. P., Blankenship, D. D., Peters, M. E., Young, D. A., Holt, J. W., and Morse, D. L.,2007, Radar-based subglacial lake classification in Antarctica, Geochemistry, Geophysics, Geosystems, 8, Q03016, 1-20, 10.1029/2006GC001408 (doi:https://doi.org/10.1029/2006GC001408) Keywords Antarctica Antarctica Ice Penetrating Radar Ice Thickness SOAR