High-Resolution CTD/STD Oceanographic Data from Alaska 1979
Updated 3mo ago
15files
Available on 2 platforms
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Description
March to May 1979 data from the ACONA cruise in the coastal waters of Southeast Alaska, British Columbia, and the Gulf of Alaska. The dataset contains high-resolution vertical profiles of temperature, salinity, density, and other parameters, processed by the National Oceanographic Data Center (NODC) into the standard F022 format. It was collected by NOAA's National Centers for Environmental Information (NCEI).
Use Cases
Analyzing vertical profiles of temperature and salinity to study water mass structure and mixing processes.
Calculating density (sigma-t) from the provided measurements to understand ocean stratification and circulation.
Using cruise station metadata (position, date, time) to map the spatial and temporal distribution of oceanographic casts.
Investigating dissolved oxygen or transmissivity levels, if present in the record, for biogeochemical or water clarity studies.
Correlating in-situ CTD/STD data with reported meteorological and sea surface conditions from the time of each cast.
Strengths
Data is high-resolution, with profiles potentially reported at depth intervals as fine as 1 meter.
Coverage spans a specific 2-month cruise period from March 17 to May 10, 1979.
Processed and standardized by NODC into the authoritative F022 format, ensuring consistency.
Limitations
Conflicting descriptions: the title calls it 'Low resolution' while the description states it is 'high-resolution'.
Key quantitative details are missing from all sources, including row count, specific column names, and file size.
License information is not provided, restricting clear understanding of reuse permissions.
Provenance
Source
NOAA National Centers for Environmental Information (NCEI), originally from the ACONA cruise.
Collection Method
Collected using Conductivity-Temperature-Depth (CTD) and Salinity-Temperature-Depth (STD) instruments lowered through the water column.
Time Range
1979-03-17 to 1979-05-10
Freshness
Metadata was last updated on Data.gov on March 5, 2026, though the underlying data is from 1979.
Geography
Coastal Waters of Southeast Alaska and British Columbia, Gulf of Alaska.
The dataset's title on Data.gov ('Low resolution...') directly contradicts the detailed description which repeatedly emphasizes 'high-resolution' data and formatting. Users must investigate the actual data files to resolve this conflict.