Simkins, Lauren M; Greenwood, Sarah L; Munevar Garcia, Santiago; Eareckson, Elizabeth; Anderson, John B; Prothro, Lindsay O (2021): Multibeam bathymetry processed data (Kongsberg EM 122 working area dataset) of RVIB NATHANIEL B. PALMER during cruise NBP150-02 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.937597, In: Simkins, LM et al. (2021): Pennell Trough, Ross Sea bathymetry and glacial landforms [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.937602
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Abstract:
Bathymetry from multibeam echo sounding data in Pennell Trough, Ross Sea, Antarctica was collected onboard the RVIB Nathaniel B. Palmer (NBP) 15-02 cruise using a Kongsberg EM122 operating in dual swath mode at 12 kHz frequency with a 1°×1° beam width, swath angular coverage set to 62°×62°, and 30-60% overlap between survey lines. All raw, ping-edited geophysical data collected on NBP150-02 can be accessed using the Marine Geoscience Data System (Cruise DOI: 10.7284/901477). The bathymetry dataset here is gridded at 20-m resolution with a water depth-dependent vertical resolution on the order of decimeters. Data was corrected for sound velocity during post-processing. The purpose of collecting the bathymetry data on cruise NBP15-02 was to better understand the glacial history of the Ross Sea, and the dataset, inclusive of bathymetry data of glacial landforms, from Pennell Trough are used to understand impacts on subglacial channel morphology and organization during the deglaciation of the region following the Last Glacial Maximum.
Related to:
Simkins, Lauren M; Greenwood, Sarah L; Munevar Garcia, Santiago; Anderson, John B; Prothro, Lindsay O (2021): Topographic Controls on Channelized Meltwater in the Subglacial Environment. Geophysical Research Letters, 48(20), e2021GL094678, https://doi.org/10.1029/2021GL094678
Other version:
Simkins, Lauren M (2021): Pennell Trough, Ross Sea bathymetry and glacial landforms. U.S. Antarctic Program (USAP) Data Center, https://doi.org/10.15784/601474
Funding:
National Science Foundation (NSF), grant/award no. OPP-1246353: Evidence for Paleo Ice Stream Collapse in the Western Ross Sea since the Last Glacial Maximum
National Science Foundation (NSF), grant/award no. OPP-1745055: Collaborative Research: Topographic Controls on Antarctic Ice Sheet Grounding Line Behavior - Integrating Models and Observations
Coverage:
Latitude: -76.147450 * Longitude: 175.707200
Event(s):
NBP1502_0_Underway-1 * Latitude: -76.147450 * Longitude: 175.707200 * Campaign: NBP1502A * Basis: Nathaniel B. Palmer * Method/Device: Swath-mapping system Simrad EM122 (Kongsberg Maritime AS) * Comment: Event shows the center loaction of the mulitbeam survey (raster dataset) during RVIB Nathaniel B. Palmer expedition NBP1502
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Simkins, Lauren M | |||
| 2 | Binary Object (Media Type) | Binary (Type) | Simkins, Lauren M | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Simkins, Lauren M | ||
| 4 | Raster cell size | Raster cell size | Simkins, Lauren M | |||
| 5 | File content | Content | Simkins, Lauren M | |||
| 6 | Vertical datum | Vertical datum | Simkins, Lauren M | |||
| 7 | Horizontal datum | Horizontal datum | Simkins, Lauren M | |||
| 8 | Longitude, westbound | Longitude west | Simkins, Lauren M | |||
| 9 | Longitude, eastbound | Longitude east | Simkins, Lauren M | |||
| 10 | Latitude, southbound | Latitude south | Simkins, Lauren M | |||
| 11 | Latitude, northbound | Latitude north | Simkins, Lauren M |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
9 data points