Cook Inlet Water and Sediment Chemistry from 1993 NOAA Cruises

Hydrocarbon, trace metal, and grain size data were collected from the Gulf of Alaska, specifically Cook Inlet, during two research cruises. The dataset includes analyses for water and sediment samples, submitted by Dr. Douglas Segar of the University of Alaska, Anchorage. Measurements were taken between June 22 and August 25, 1993.

Use Cases

• Analyze spatial distribution of total metal concentrations in water using the 'MTLWATC1.WK3' and 'MTLWATC2.WK3' tables for Cruise 1 and Cruise 2.
• Compare saturated hydrocarbon levels between sediment and water samples using the 'SEDSHC.WK3' and 'WATSHCC1.WK3/WATSHCC2.WK3' tables.
• Assess sediment composition and pollution by correlating grain-size data from 'MMSRPT.DRW' with total metals summaries in 'SEDMTLS.WK3'.
• Evaluate data consistency for sediment replicates using chemical and statistical results in the 'CHPHSEDR.WK1' file.

Strengths

• Data covers two distinct sampling cruises, providing temporal comparison points within the summer of 1993.
• Includes multiple related data types (hydrocarbons, metals, grain size) for a unified environmental assessment.
• Original data was structured for a specific regulatory report (OCS Study MMS 95-0009), indicating curated analysis.

Limitations

• Sample size is unknown; the dataset may be limited to the specific stations and two cruises described.
• Data is from 1993 and may not reflect current environmental conditions in Cook Inlet.
• Original file formats (Lotus 123) are obsolete and may require conversion for modern analysis.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI), submitted by Dr. Douglas Segar, University of Alaska, Anchorage.

Collection Method

Collected from NOAA LAUNCHES platform via Conductivity, Temperature and Depth (CTD) and other instruments, with subsequent laboratory analysis.

Time Range

1993-06-22 to 1993-08-25

Freshness

null

Geography

Gulf of Alaska, specifically Cook Inlet.