Thirty piston cores, ranging from 15 to 23 meters in length, were recovered at various latitudes during the RV Polarstern ANT/XVIII/5 campaign. The expedition, conducted by SCIOPS, also collected centimeter-sized meteoritic fragments near 57°S/92°W and water column samples for coccolithophore analysis. Data collection concluded in April 2001.
Use Cases
- Analyze sediment core lithology and length (15-23 m) to reconstruct past climatic conditions in the Bellinghausen Sea.
- Study micropaleontological data from onboard analysis to infer historical marine ecosystem changes.
- Map the distribution of centimeter-sized meteoritic fragments around 57°S/92°W to model the Eltanin asteroid impact.
- Characterize coccolithophore associations from water column samples to assess contemporary phytoplankton communities.
Strengths
- Collection of 30 sediment cores provides multiple data points for regional analysis.
- Specific geospatial focus on the Eltanin impact site (57°S/92°W) for targeted event study.
Limitations
- Unknown sample size for meteorite fragments and water column analyses limits statistical assessment.
- Data is over 20 years old (2001), which may not reflect current oceanic conditions.
Provenance
- Source
- SCIOPS via NASA Earthdata.
- Collection Method
- Ship-based campaign (RV Polarstern) involving piston coring, onboard micropaleontological analysis, and water sampling.
- Time Range
- Campaign concluded in April 2001.
- Freshness
- null
- Geography
- Bellinghausen Sea, Antarctic region, with specific sampling near 57°S/92°W.