Massachusetts Bay - Internal wave packets digitized from SAR imagery

Metadata Updated: March 11, 2021

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).

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date March 11, 2021
Metadata Updated Date March 11, 2021
Data Update Frequency irregular

Additional Metadata

Resource Type Dataset
Metadata Created Date March 11, 2021
Metadata Updated Date March 11, 2021
Publisher NOAA/NOS/NCCOS/CCMA/Biogeography Branch (Point of Contact)
Unique Identifier Unknown
Maintainer
Identifier Massachusetts Bay - Internal wave packets digitized from SAR imagery
Language en-US
Data Last Modified 2006-01-01
Public Access Level public
Data Update Frequency irregular
Bureau Code 006:48
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Old Spatial {"type": "Polygon", "coordinates": -70.783468, 41.530974, -69.587833, 41.530974, -69.587833, 42.762758, -70.783468, 42.762758, -70.783468, 41.530974}
Program Code 006:055
Source Datajson Identifier True
Source Hash f6481d0c3050265132da07ad0cd46f839e7a382a
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -70.783468, 41.530974, -69.587833, 41.530974, -69.587833, 42.762758, -70.783468, 42.762758, -70.783468, 41.530974}
Temporal 1998-05-14T00:00:00/2003-09-29T00:00:00

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