Monterey Bay Profiles from CTD, Nephelometer, a Transmissometer and a Structured Light Source with High Definition Video Detection were used on board the RO Ventana during September 2001 and March 2002 for Study of Methane Cycling in Mid-Water Suspended Particle Layers (NCEI Accession 0000902)
CTD data from remotely operated vehicle working in Monterey Bay, California.
The remotely operated vehicle Ventana was used to measure the vertical distribution and the optical characteristics of suspended layers of fine particles along the axis of Monterey Canyon in Monterey Bay, California. A combination of a nephelometer, a transmissometer and a structured light source with high definition video detection was used for these measurements. The particles layers ranged from broad bands extending over several hundred meters of depth to thin, concentrated layers <20 m thick.
Ventana was also used to collect water samples, without the physical disruptions inherent in CTD/rosette-based sampling, within and around the particle layers. Samples were collected from depths of 400 - 1450 m and are being analyzed for methane, methane carbon stable isotopes, alkalinity, nutrients, thorium isotopes, and pH. In addition, video of the structured light transects were analyzed to determine particle size distribution and collected particles were analyzed for mineral and chemical composition. Finally, genomic characterization of the microbial communities on the collected particles will be conducted.
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 | CTD data from remotely operated vehicle working in Monterey Bay, California. The remotely operated vehicle Ventana was used to measure the vertical distribution and the optical characteristics of suspended layers of fine particles along the axis of Monterey Canyon in Monterey Bay, California. A combination of a nephelometer, a transmissometer and a structured light source with high definition video detection was used for these measurements. The particles layers ranged from broad bands extending over several hundred meters of depth to thin, concentrated layers <20 m thick. Ventana was also used to collect water samples, without the physical disruptions inherent in CTD/rosette-based sampling, within and around the particle layers. Samples were collected from depths of 400 - 1450 m and are being analyzed for methane, methane carbon stable isotopes, alkalinity, nutrients, thorium isotopes, and pH. In addition, video of the structured light transects were analyzed to determine particle size distribution and collected particles were analyzed for mineral and chemical composition. Finally, genomic characterization of the microbial communities on the collected particles will be conducted. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "NCEI Dataset Landing Page",
"mediaType": "placeholder/value",
"description": "Navigate directly to the URL for a descriptive web page with download links.",
"downloadURL": "https://www.ncei.noaa.gov/archive/accession/0000902",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Descriptive Information",
"mediaType": "placeholder/value",
"description": "Navigate directly to the URL for a descriptive web page with download links.",
"downloadURL": "https://www.ncei.noaa.gov/archive/accession/oas/902",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "HTTPS",
"mediaType": "placeholder/value",
"description": "Navigate directly to the URL for data access and direct download.",
"downloadURL": "https://www.ncei.noaa.gov/archive/accession/download/902",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "FTP",
"mediaType": "placeholder/value",
"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/arc0001/0000902/",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "GCMD Keyword Forum Page",
"mediaType": "placeholder/value",
"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",
"downloadURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "NCEI Contact Information",
"mediaType": "placeholder/value",
"description": "Information for contacts at NCEI.",
"downloadURL": "https://www.ncei.noaa.gov/contact",
"describedByType": "application/octet-steam"
}
]
|
| identifier | gov.noaa.nodc:0000902 |
| issued | 2003-01-31T00:00:00.000+00:00 |
| keyword |
[
"0000902",
"CONDUCTIVITY",
"DEPTH - OBSERVATION",
"HYDROSTATIC PRESSURE",
"NEPHELS",
"OXYGEN",
"SALINITY",
"TRANSMISSIVITY",
"WATER TEMPERATURE",
"CTD",
"nephelometer",
"transmissometer",
"optical",
"physical",
"profile",
"University of Hawai'i at Mānoa",
"University of Hawai'i at Mānoa",
"North Pacific Ocean",
"oceanography",
"DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce",
"EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN",
"EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION",
"EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE",
"EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
"EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY",
"EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY",
"CTD",
"Nephlelometer",
"Temperature",
"conductivity",
"dissolved oxygen",
"profile",
"remotely operated vehicle Ventana",
"salininty",
"transmissometer",
"CTD > Conductivity, Temperature, Depth",
"TRANSMISSOMETERS",
"OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN",
"California",
"Monterey Bay",
"Pacific Ocean"
]
|
| landingPage | https://www.ncei.noaa.gov/contact |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2026-01-18T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| rights | otherRestrictions |
| spatial | -122.05,36.7,-122.12,36.77 |
| temporal | 2001-09-17T00:00:00+00:00/2002-03-22T00:00:00+00:00 |
| title | Monterey Bay Profiles from CTD, Nephelometer, a Transmissometer and a Structured Light Source with High Definition Video Detection were used on board the RO Ventana during September 2001 and March 2002 for Study of Methane Cycling in Mid-Water Suspended Particle Layers (NCEI Accession 0000902) |
