LMG9907: Underway Data from Antarctic Research Icebreaker Transit

The NSF-supported research icebreaker Laurence M. Gould collected this data during leg LMG9907, which started and ended in Punta Arenas, Chile. The vessel operates year-round for the U.S. Antarctic Program, conducting studies in biological, chemical, physical, and oceanographic disciplines. The dataset was last updated in September 1999.

Use Cases

• Analyzing oceanographic conditions during Antarctic transit based on the description of physical and chemical data collection.
• Studying biological phenomena in polar regions based on the mention of biological discipline studies.
• Modeling ship-based data collection routes and patterns based on the described transit from Punta Arenas, Chile.
• Investigating long-term environmental changes in the Southern Ocean based on the global change studies focus.

Strengths

• Data originates from a dedicated NSF-supported research icebreaker, suggesting authoritative collection.
• Covers multiple scientific disciplines (biological, chemical, physical, oceanographic) as stated in the description.
• Provides a specific temporal reference point with a last update date of 1999-09-10.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Last updated 1999-09-10 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

SCIOPS, via NASA Earthdata platform.

Collection Method

Underway data collected by the R/V Laurence M. Gould research vessel.

Time Range

Covers the period of leg LMG9907 (specific dates unknown).

Freshness

Last updated 1999-09-10 23:59:59.999000.

Geography

Transit route starting and ending in Punta Arenas, Chile, within Antarctic operational areas.