Nutrient and physical oceanographic data were collected via bottle casts in the Gulf of Maine over a 59-year period. The dataset includes measurements for temperature, sigma-t, nitrate, ammonium, phosphate, silicate, and chlorophyll. Data were collected by the Gulf of Maine Regional Marine Research Program and archived by NOAA NCEI, with the last update in July 1991.
Use Cases
- Analyze long-term trends in nitrate and phosphate concentrations to study eutrophication or nutrient cycling.
- Model chlorophyll levels as a function of silicate and ammonium using time-series regression.
- Correlate temperature and sigma-t measurements with nutrient profiles to understand water column stratification effects.
Strengths
- Covers a 59-year temporal range from 1932 to 1991.
- Includes multiple nutrient parameters: nitrate, ammonium, phosphate, silicate, and chlorophyll.
Limitations
- Data collection ended in 1991, making it temporally stale for contemporary analysis.
- Specific row count, geographic precision, and sampling frequency are unknown.
Provenance
- Source
- NOAA NCEI (National Centers for Environmental Information).
- Collection Method
- Data collected from bottle casts.
- Time Range
- 02 August 1932 to 13 July 1991.
- Freshness
- Last updated 1991-07-13; no ongoing updates.
- Geography
- Gulf of Maine.