Gulf of Alaska CTD Cast Data for GLOBEC Project 1999
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Description
CTD cast data from the R/V Alpha Helix in the Gulf of Alaska was collected by the University of Alaska Fairbanks Institute of Marine Science. The dataset includes measurements of temperature, salinity, pressure, photosynthetically active radiation, and oxygen concentrations. Data collection occurred from August 26 to December 7, 1999 in support of the Global Ocean Ecosystems Dynamics project.
Use Cases
Analyze vertical profiles of temperature and salinity (sigma-t) to study water column stratification in the Gulf of Alaska.
Correlate photosynthetically active radiation (PAR) measurements with other parameters to investigate light availability for phytoplankton.
Use oxygen concentration and temperature data to assess water mass properties and biogeochemical conditions.
Model seasonal changes from August to December using the time-series of pressure, temperature, and salinity records.
Strengths
Data includes six key oceanographic parameters: temperature, salinity, sigma-t, pressure, PAR, and oxygen.
Temporal coverage spans over three months during a critical seasonal transition period.
Limitations
The dataset is from a single research cruise in 1999, limiting spatial and temporal generalizability.
Specific row count, data resolution (depth intervals), and quality control flags are unknown.
Provenance
Source
University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS), archived by NOAA NCEI.
Collection Method
Collected from Conductivity, Temperature, Depth (CTD) casts from the R/V Alpha Helix.
Time Range
1999-08-26 to 1999-12-07
Freshness
Data is from 1999; no updates are expected.
Geography
Gulf of Alaska
License terms are unknown; users should verify with NOAA NCEI. Original file formats and data access structure are unspecified.