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Massachusetts Bay - Internal wave packets digitized from SAR imagery
This feature class contains internal wave packets digitized from SAR imagery at 1:350,000 scale in Massachusetts Bay. Internal waves are nonsinusoidal waves that occur at the interface between two layers of ocean water of differing densities (Brown et al., 1989 p.9). They occur when seasonally stratified water is forced by diurnal tides over abrupt topographic features, such as banks or ledges. These processes often produce several internal waves at once and as a result, internal waves usually propagate horizontally in groups or packets. As these packets approach shallow water (typically 25 to 40 m in depth), they gradually disappear due to increasing bottom attenuation, disrupting the pycnocline and vertically mixing water of differing densities (Jackson and Apel, 2004 p.198).
Resources
3 resources available
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https://coastalscience.noaa.gov/projects/detail?key=141
TEXT/HTML -
GCMD Keyword Forum Page
TEXT/HTML -
Full Metadata Record
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "Not provided - Contact data.gov",
"hasEmail": "mailto:datagovsupport@gsa.gov"
}
|
| describedByType | application/octet-steam |
| description | This feature class contains internal wave packets digitized from SAR imagery at 1:350,000 scale in Massachusetts Bay. Internal waves are nonsinusoidal waves that occur at the interface between two layers of ocean water of differing densities (Brown et al., 1989 p.9). They occur when seasonally stratified water is forced by diurnal tides over abrupt topographic features, such as banks or ledges. These processes often produce several internal waves at once and as a result, internal waves usually propagate horizontally in groups or packets. As these packets approach shallow water (typically 25 to 40 m in depth), they gradually disappear due to increasing bottom attenuation, disrupting the pycnocline and vertically mixing water of differing densities (Jackson and Apel, 2004 p.198). |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "https://coastalscience.noaa.gov/projects/detail?key=141",
"accessURL": "https://coastalscience.noaa.gov/projects/detail?key=141",
"mediaType": "text/html",
"description": "Online Resource",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "GCMD Keyword Forum Page",
"accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
"mediaType": "text/html",
"description": "Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. 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",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "Full Metadata Record",
"accessURL": "https://www.fisheries.noaa.gov/inport/item/39341",
"mediaType": "text/html",
"description": "View the complete metadata record on InPort for more information about this dataset.",
"describedByType": "application/octet-stream"
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]
|
| identifier | https://data.noaa.gov/waf/NOAA/nos/nccos/iso/xml/39341.xml |
| issued | 2006-01-01T00:00:00.000+00:00 |
| keyword |
[
"Environmental Monitoring",
"Internal Waves",
"SAR",
"Synthetic Aperture Radar",
"1998-2003",
"Massachusetts Bay",
"Stellwagen Bank National Marine Sanctuary",
"DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, National Ocean Service, NOAA, U.S. Department of Commerce",
"SBNMS_Assess_Internal_Waves"
]
|
| landingPage | https://www.fisheries.noaa.gov/inport/item/39341 |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2006-01-01T00:00:00.000+00:00 |
| publisher |
{
"name": "National Centers for Coastal Ocean Science",
"@type": "org:Organization"
}
|
| rights | otherRestrictions, unclassified |
| spatial | -69.587833,41.530974,-70.783468,42.762758 |
| temporal | 1998-05-14T00:00:00+00:00/2003-09-29T00:00:00+00:00 |
| title | Massachusetts Bay - Internal wave packets digitized from SAR imagery |
