ODP 177 diatom d15N and d13C data contains measurements of nitrogen and carbon stable isotopes in diatom organic matter from sediment cores. The dataset covers three Ocean Drilling Program sites (1094, 1093, 1091) with a resolution of one measurement per centimeter of core depth, spanning the last full glacial cycle. The data was contributed by the SCIOPS organization.
Use Cases
- Reconstruct past nutrient utilization by analyzing the d15N values from diatom organic matter.
- Study changes in Southern Ocean carbon cycling and phytoplankton physiology using d13C measurements.
- Correlate isotopic shifts in the sediment record from sites 1094, 1093, and 1091 to infer regional climate patterns.
- Calibrate or validate paleo-proxy models for the Antarctic region using the high-resolution (1 cm) core data.
Strengths
- Covers three distinct ODP sites (1094, 1093, 1091) for regional comparison.
- Provides high-resolution data with measurements at 1 cm intervals through the core.
Limitations
- Exact sample size (row count) and temporal range in years are unknown.
- Limited to three core locations in the Antarctic Ocean, restricting broader geographic analysis.
Provenance
- Source
- SCIOPS via NASA EarthData (ODP).
- Collection Method
- Isotopic analysis of diatom organic matter extracted from Ocean Drilling Program sediment cores.
- Time Range
- Covers the last full glacial cycle.
- Freshness
- null
- Geography
- Southern Ocean, specifically ODP Sites 1094, 1093, and 1091.