NOAA NCEI provides a dataset of temperature, salinity, and nutrient measurements from nearshore coastal waters of west Hawaii. Data includes phosphates, nitrate, and silica from harbors, wells, ponds, and coastal waters. Measurements were collected from August 2005 through May 2007.
Use Cases
- Modeling the relationship between nutrient levels (phosphates, nitrate, silica) and salinity in coastal waters.
- Analyzing temporal trends in water temperature and salinity from surface to 5 m depth in Honokohau Harbor.
- Comparing water quality parameters between harbors, coastal waters, and freshwater/brackish sources like wells and ponds.
- Validating thermal infrared satellite or aerial imagery using in-situ temperature measurements as ground truth.
Strengths
- Multi-year temporal coverage from August 2005 to May 2007.
- Includes multiple data types: physical (temperature, salinity) and chemical (nutrients).
- Spatial coverage across three distinct locations: Honokohau Harbor, Kealakekua Bay, and Kailua Bay.
Limitations
- Sample size and row count are unknown.
- Depth coverage is limited, with data primarily from the surface to 5 meters.
- Data is over 15 years old, limiting analysis of current conditions.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI).
- Collection Method
- In-situ measurements from wells, ponds, harbors, and coastal waters, used for ground truthing thermal infrared imagery.
- Time Range
- August 2005 through May 2007.
- Freshness
- Last updated 2007-05-19; static historical dataset.
- Geography
- West Hawaii (Big Island): Honokohau Harbor, Kealakekua Bay, and Kailua Bay.