OMG CTD Profiles: Ocean Properties Around Greenland

Oceans Melting Greenland (OMG) project data provides in-situ measurements of the water column's physical properties. Conductivity Temperature Depth (CTD) casts and tows recorded salinity, density, temperature, and sound velocity around Greenland's coast. This dataset supports research into the ocean's contribution to glacial melt.

Use Cases

• Modeling ocean heat transport to Greenland's glaciers based on temperature and salinity profiles.
• Analyzing water column stratification and density structure for oceanographic studies.
• Calibrating satellite-derived sea surface salinity data with in-situ conductivity measurements.
• Investigating sound velocity variations for underwater acoustic research in Arctic waters.

Strengths

• Data is part of the NASA-led Oceans Melting Greenland (OMG) project, indicating a structured scientific mission.
• Contains multiple physical oceanographic variables (salinity, density, temperature, sound velocity) measured in-situ.
• Includes data from two deployment methods: vertical profile casts and towed yo-yo profiles.

Limitations

• Column names and specific data structure are not documented in the provided metadata.
• Conflicting 'last updated' dates exist between sources (2026-04-09 on Data.gov vs. 2020-08-23 on NASA Earthdata).
• Key metadata such as row count, file size, and detailed license terms are unavailable.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

In-situ measurements from ship-deployed Conductivity Temperature Depth (CTD) casts and tows.

Freshness

2026-04-09 23:19:25.610143

Geography

Ocean waters around Greenland