LMG9904: Underway Oceanographic Data from Antarctic Research Cruise

R/V Laurence M. Gould leg LMG9904 collected underway data for global change studies in biological, chemical, physical, and oceanographic disciplines. The NSF-supported research icebreaker operates year-round for the U.S. Antarctic Program. This specific leg started and ended at Punta Arenas, Chile.

Use Cases

• Analyze temporal trends in oceanographic conditions based on the underway time-series data.
• Model biogeochemical processes in Antarctic waters based on the described biological and chemical data.
• Study physical oceanography and climate change impacts based on the described physical discipline data.
• Correlate ship-track observations with satellite or other regional data based on the geospatial nature of underway data.

Strengths

• Data originates from a dedicated NSF-supported research icebreaker, suggesting authoritative collection.
• Covers multiple scientific disciplines (biological, chemical, physical, oceanographic) for integrated analysis.

Limitations

• Last updated 1999-06-03 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

SCIOPS via NASA Earthdata

Collection Method

Underway data collection from the R/V Laurence M. Gould research vessel.

Time Range

1999 (from leg identifier LMG9904)

Freshness

1999-06-03 23:59:59.999000

Geography

Antarctic region, cruise leg from Punta Arenas, Chile to Punta Arenas, Chile.