Submarine groundwater discharge at Kahana Bay, Oahu, 1997-2001: in situ CTD and water chemistry tracer data (NCEI Accession 0011399)
Submarine groundwater discharge (SGD) is neither well understood nor commonly investigated in Hawaii, but it is recognized as a potential pollution source to coastal environments. Between 1997 and 2001, this study located and quantified both total SGD and the terrestrial SGD fraction in Kahana Bay, Oahu. CTD casts were used to profile the water structure and identify potential areas of SGD impact in the bay. Lee-type seepage meters were used to measure SGD rates and collect samples of SGD directly. Radon-222, Si, Cl., and total alkalinity (Ta) were used as natural tracers to measure the terrestrial groundwater fraction within SGD. Nutrient concentrations were also measured to calculate total nutrient fluxes into the bay via SGD.
Resources
6 resources available
-
NCEI Dataset Landing Page
PLACEHOLDER/VALUE -
Descriptive Information
PLACEHOLDER/VALUE -
HTTPS
PLACEHOLDER/VALUE -
FTP
PLACEHOLDER/VALUE -
GCMD Keyword Forum Page
PLACEHOLDER/VALUE -
NCEI Contact Information
PLACEHOLDER/VALUE
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "NOAA National Centers for Environmental Information",
"@type": "vcard:Contact",
"hasEmail": "mailto:ncei.info@noaa.gov"
}
|
| describedByType | application/octet-steam |
| description | Submarine groundwater discharge (SGD) is neither well understood nor commonly investigated in Hawaii, but it is recognized as a potential pollution source to coastal environments. Between 1997 and 2001, this study located and quantified both total SGD and the terrestrial SGD fraction in Kahana Bay, Oahu. CTD casts were used to profile the water structure and identify potential areas of SGD impact in the bay. Lee-type seepage meters were used to measure SGD rates and collect samples of SGD directly. Radon-222, Si, Cl., and total alkalinity (Ta) were used as natural tracers to measure the terrestrial groundwater fraction within SGD. Nutrient concentrations were also measured to calculate total nutrient fluxes into the bay via SGD. |
| distribution |
[
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"downloadURL": "https://www.ncei.noaa.gov/archive/accession/download/11399",
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"title": "FTP",
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"description": "These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).",
"downloadURL": "ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0031/0011399/",
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"description": "Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
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|
| identifier | gov.noaa.nodc:0011399 |
| issued | 2006-12-13T00:00:00.000+00:00 |
| keyword |
[
"0011399",
"AMMONIUM (NH4)",
"CHLORINITY",
"Methane (CH4)",
"NITRATE",
"NITROGEN",
"NITROGEN - ORGANIC",
"phosphate",
"PHOSPHATE - TOTAL",
"PHOSPHORUS - ORGANIC",
"SALINITY",
"Silicon",
"total alkalinity",
"WATER TEMPERATURE",
"CTD",
"chemical",
"physical",
"University of Hawai'i at Mānoa",
"URS Corporation",
"URS Corporation",
"Coastal Waters of Hawaii",
"Hawaiian Islands Humpback Whale National Marine Sanctuary",
"North Pacific Ocean",
"oceanography",
"DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce",
"EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
"EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY",
"EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA",
"EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE",
"EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN",
"EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE",
"EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
"EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY",
"CTD > Conductivity, Temperature, Depth",
"OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS",
"OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN"
]
|
| landingPage | https://www.ncei.noaa.gov/contact |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2006-12-13T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| rights | otherRestrictions |
| spatial | -157.85,21.55416,-157.875,21.57917 |
| temporal | 1997-10-07T00:00:00+00:00/2001-03-15T00:00:00+00:00 |
| title | Submarine groundwater discharge at Kahana Bay, Oahu, 1997-2001: in situ CTD and water chemistry tracer data (NCEI Accession 0011399) |
