GNS20303 - Kamb Ice Stream (Antarctica) Grounding Line Mooring data
Simple
- Title
- GNS20303 - Kamb Ice Stream (Antarctica) Grounding Line Mooring data
- Creator
- GNS20303
- Creator
- ASP P1 - ANTARCTIC ICE DYNAMIC
- Creator
- Craig Stevens
- Creator
- GNS20303
- Description
- Oceanographic data from field seasons at the Kamb Ice Stream grounding line (82°S 47.0464' 155°W 15.7601') a region of arrested ice flow into the eastern margin of the Ross Ice Shelf. The field site, around 5 km offshore from the grounding line, was focused around a hot water borehole to access the ~30 m thick ocean cavity. We measured the water column structure of the ocean cavity at KIS1/HWD1 over a week-long period that spanned from spring tides to neap tides. The observations captured salinity, temperature and turbidity structure using various precision ocean instruments. Over the spring-neap period the stratification shifts from one where the overarching central quasi-stratification has gradient regions to a simple two-layer structure - and then back again. Some ephemera are also observed like occasional near-surface layers both under the ice and at the bed as well as some internal instability. In addition, we describe the first several months of timeseries data from an on-going hydrographic mooring deployed to report ocean currents and temperature and salinity. The tidal currents appear to be stronger than model estimates and there is a clear estuarine residual flow.
- Resource Type
- dataset
- Format
- ascii
- Format
- team Q drive and NZODN
- Source
- In progress
- Source
- Postcard
- Rights Management
- Project (within NIWA) & external (MBIE ASP)
- Date Modified
- 9:31:11 on 13 October 2020
- Resource Identifier
- 5edececced725
NIWA - Metadata Catalogue