Citation:

PANGAEA.937602

Name: Multibeam bathymetry processed data (Kongsberg EM 122 working area dataset) of RVIB NATHANIEL B. PALMER during cruise NBP150-02
Published: 2021-10-27
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Antarctica; Bathymetry; Geomorphology; glacial history; Ross Sea

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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.

Keyword(s):

Antarctica; Bathymetry; Geomorphology; glacial history; Ross Sea

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:

Knut and Alice Wallenberg Foundation, grant/award no. 2016.0144

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

Swedish Research Council (VR), grant/award no. D0567301

Coverage:

Latitude: -76.147450 * Longitude: 175.707200

Event(s):

NBP1502_0_Underway-1 * Latitude: -76.147450 * Longitude: 175.707200 * Campaign: * Basis: Nathaniel B. Palmer * Method/Device: * 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
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

Data

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1 Binary	2 Binary (Type)	3 Binary (Size) [Bytes]	4 Raster cell size	5 Content	6 Vertical datum	7 Horizontal datum	8 Longitude west	9 Longitude east	10 Latitude south	11 Latitude north
Pennell_bathymetry.tif	image/tiff	6.5 MBytes	20m	bathymetry / negative values in meters for depth measurements / GeoTIFF raster image, Float32 - Thirty two bit floating point	MSL (Mean Sea Level) WGS84	EPSG:32758 - WGS 84 / UTM zone 58S	174.2947	177.1293	-76.31126	-75.97735