Abstract:
A British Antarctic Survey Twin Otter and survey team acquired 15,500 line-km of aerogeophysical data during the 2001/02 Antarctic field season along a 1-km line spacing grid with tie-lines 8 km apart. Twenty-five flights were flown from the South African base SANAE, for a total of 100 survey hours. We present here the processed bed elevation picks from airborne radar depth sounding. The airborne-radio echosounding data were collected for 5 flights, to image ice-thickness and bedrock configuration.
Data are provided as XYZ ASCII line data. This high-resolution aerogeophysical survey was part of the "Magmatism as a Monitor of Gondwanabreak-up" project (MAMOG) of the British Antarctic Survey, which included new geochemical investigations, structural geology, geochronology, and AMS studies over western Dronning Maud Land.
Keywords:
Antarctic, aerogeophysics, ice thickness, radar, surface elevation
Ferraccioli, F., Jones, P., Curtis, M., Leat, P., & Riley, T. (2020). Processed bed elevation picks from airborne radar depth sounding over the Jutulstraumen rift area (2001/02 season) (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/84a273d9-8191-4316-b8f6-dc907eb0947a
| Use Constraints: | This data is covered by a UK Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) Further by downloading this data the user acknowledges that they agree with the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy.asp), and the following conditions: 1. To cite the data in any publication as follows: Ferraccioli, F., Jones, P., Curtis, M., Leat, P., & Riley, T. (2020). Processed bed elevation picks from airborne radar depth sounding over the Jutulstraumen rift area (2001/02 season) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/84A273D9-8191-4316-B8F6-DC907EB0947A 2. The user recognizes the limitations of data. Use of the data is at the users' own risk, and there is no warranty as to the quality or accuracy of any data, or the fitness of the data for your intended use. The data are not necessarily fully quality assured and cannot be expected to be free from measurement uncertainty, systematic biases, or errors of interpretation or analysis, and may include inaccuracies in error margins quoted with the data. |
|---|
| Creation Date: | 2019-12-04 |
|---|---|
| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
|
| Parameters: |
|
| Personnel: | |
| Name | PDC BAS |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Fausto Ferraccioli |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr P. C Jones |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Michael L Curtis |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr Philip Leat |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Teal R Riley |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | F. Ferraccioli, P.C. Jones, M.L. Curtis, P.T. Leat, T.R. Riley. 2005. Tectonic and magmatic patterns in the Jutulstraumen rift (?) region, East Antarctica, as imaged by high-resolution aeromagnetic data. Earth Planets Space, 57, 767-780. https://doi.org/10.1186/BF03351856 F. Ferraccioli, P.C. Jones, M.L. Curtis and P.T. Leat. 2005. Subglacial imprints of early Gondwana break-up as identified from high resolution aerogeophysical data over western Dronning Maud Land, East Antarctica. Terra Nova, 17, 573-579. https://doi.org/10.1111/j.1365-3121.2005.00651.x Processing references: Fremand, A. C., Bodart, J. A., Jordan, T. A., Ferraccioli, F., Robinson, C., Corr, H. F., & Vaughan, D. G. (2022). British Antarctic Survey's Aerogeophysical Data: Releasing 25 Years of Airborne Gravity, Magnetic, and Radar Datasets over Antarctica. Earth System Science Data Discussions, 1-49. https://doi.org/10.5194/essd-14-3379-2022 Corr, H., Popple, M., 1994. Airborne radio echo sounding on the Evans flowline, Ronne ice shelf. In: Oerter, H. (Ed.), Filchner-Ronne Ice Shelf Programme 8. Alfred-Wegener-Institute for Polar and Marine Research, Bremerhaven, pp. 9-11. Corr, H., Ferraccioli, F., Frearson, N., Jordan, T.A., Robinson, C., Armadillo, A., Caneva, G., Bozzo, E. & Tabacco, I.E., 2007. Airborne Radio-Echo Sounding of the Wilkes Subglacial Basin, the Transantarctic Mountains, and the Dome C Region. in The Italian-British Antarctic Geophysical and Geological Survey in Northern Victoria Land 2005-06-Towards the International Polar Year 2007-08., pp. 55-63, eds. Bozzo, E. & Ferraccioli, F. Terra Antartica Reports. F. Ferraccioli, P.C. Jones, M.L. Curtis and P.T. Leat. 2005. Subglacial imprints of early Gondwana break-up as identified from high resolution aerogeophysical data over western Dronning Maud Land, East Antarctica. Terra Nova, 17, 573-579. https://doi.org/10.1111/j.1365-3121.2005.00651.x Fremand, A. C., Bodart, J. A., Jordan, T. A., Ferraccioli, F., Robinson, C., Corr, H. F. J., Peat, H. J., Bingham, R. G., and Vaughan, D. G.: British Antarctic Survey's aerogeophysical data: releasing 25 years of airborne gravity, magnetic, and radar datasets over Antarctica, Earth Syst. Sci. Data, 14, 3379-3410, https://doi.org/10.5194/essd-14-3379-2022, 2022. |
|
|---|---|---|
| Quality: | The following parameters have no values: Height_WGS1984, SegY_name, TraceNum, PriNum, surfPickloc, bedPickloc. Date information is not available and is missing. The campaign took place between January and February 2002. |
|
| Lineage: | Radar data presented in Ferraccioli et al (2005).The airborne ice sounding radar system used was the "BAS-built" system, which operated a 4 us linear frequency modulated pulse in addition to a standard short 0.25 us pulse (Corr and Popple, 1994; Fremand, Bodart et al., 2022). Data provided here includes picked ice sheet bed elevation along exploratory or longer transit lines. No radar data was collected from the main survey grid. Channel description: Basic Channels Name Description Lon Longitude WGS 1984 Lat Latitude WGS 1984 x x projected meters* y y projected meters* Radar surfElev Surface elevation. BEDMAP2 surface used here. (m) bedElev Ice bed elevation, derived by subtracting tice from surfElev (m) tIce Ice thickness (m). *Projected coordinates (x and y) are in Lambert conic conformal with two standard parallels defined as follows: Latitude of natural origin: -71 Longitude of natural origin: 0 Scale factor at natural origin -75.33333333333 False easting 0 False northing 2082760.109 |
|
| Temporal Coverage: | |
|---|---|
| Start Date | 2002-01-01 |
| End Date | 2002-02-20 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -73.9 |
| Northernmost | -71.2 |
| Longitude | |
| Westernmost | -7 |
| Easternmost | 3.7 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Data Resolution: | |
| Latitude Resolution | N/A |
| Longitude Resolution | N/A |
| Horizontal Resolution Range | 30 meters - < 100 meters |
| Vertical Resolution | N/A |
| Vertical Resolution Range | N/A |
| Temporal Resolution | N/A |
| Temporal Resolution Range | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | Jutulstraumen rift area |
| Sensor(s): |
|
|---|---|
| Source(s): |
|
| Distribution: | |
|---|---|
| Distribution Media | Online Internet (HTTP) |
| Distribution Size | 500 kB |
| Distribution Format | ASCII |
| Fees | N/A |
| Data Storage: | This dataset constains 1 ASCII XYZ file: -MAMOG_Radar.XYZ ~500 kB |