PBseaice: Under-Ice Seawater Dissolved Organic Carbon Measurements

Seawater samples collected from under sea ice provide measurements of dissolved organic carbon components. The dataset includes concentrations of total, refractory, and bioavailable dissolved organic carbon, with associated error metrics, alongside geospatial coordinates and water depth. Data is managed by the OB_DAAC organization and was last updated in 2026.

Use Cases

• Analyzing the spatial distribution of dissolved organic carbon under sea ice using latitude, longitude, and depth columns.
• Comparing the bioavailability and refractory fractions of marine dissolved organic carbon across sample locations.
• Assessing measurement uncertainty for carbon concentration estimates using the provided standard deviation and standard error values.
• Integrating under-ice carbon data with broader oceanographic models of polar marine ecosystems.

Strengths

• Includes three distinct carbon measurements (dissolved, refractory, bioavailable) with documented error calculations.
• Provides precise sample location data with latitude, longitude, and water depth.
• Sample collection and handling protocols are documented and available.
• Dataset is hosted on multiple authoritative platforms (NASA Earthdata, Data.gov), indicating vetting and importance.

Limitations

• Key descriptive metadata is missing: exact row count, column names, and file size are unknown across all sources.
• Sources conflict on the license (specified as 'other-license-specified' vs. 'None') and last update date (2026-03-12 vs. 2025-07-01).

Provenance

Source

OB_DAAC organization.

Collection Method

Measurements from discrete seawater samples collected from under sea ice.

Time Range

null

Freshness

2026-03-12 22:42:38.143903

Geography

Polar regions under sea ice, as indicated by sample collection description.