AFSC/NMML: Small cetacean aerial survey in Alaskan waters, 1997-1999
Aerial surveys were conducted to produce abundance estimates for the three Alaska stocks of harbor porpoise. Surveys occurred from May to July 1997 for the Southeast Alaska stock, May to July 1998 for the Gulf of Alaska stock, and June to July 1999 for the Bering Sea stock. Two primary observers observed from bubble windows on the left and right side of the plane. A belly window observer with a view directly down along the trackline collected sightings that were matched to the side observers and used to estimate a correction factor for perception bias that was specific to harbor porpoise in Alaskan waters.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "Clapham, Phillip",
"@type": "vcard:Contact",
"hasEmail": "mailto:phillip.clapham@noaa.gov"
}
|
| describedByType | application/octet-steam |
| description | Aerial surveys were conducted to produce abundance estimates for the three Alaska stocks of harbor porpoise. Surveys occurred from May to July 1997 for the Southeast Alaska stock, May to July 1998 for the Gulf of Alaska stock, and June to July 1999 for the Bering Sea stock. Two primary observers observed from bubble windows on the left and right side of the plane. A belly window observer with a view directly down along the trackline collected sightings that were matched to the side observers and used to estimate a correction factor for perception bias that was specific to harbor porpoise in Alaskan waters. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:0131991",
"mediaType": "placeholder/value",
"description": "cvs file with effort and sighting data",
"downloadURL": "https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:0131991",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "NOAA Data Management Plan (DMP)",
"mediaType": "placeholder/value",
"description": "NOAA Data Management Plan for this record on InPort.",
"downloadURL": "https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/26315.pdf",
"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 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",
"downloadURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Full Metadata Record",
"mediaType": "placeholder/value",
"description": "View the complete metadata record on InPort for more information about this dataset.",
"downloadURL": "https://www.fisheries.noaa.gov/inport/item/26315",
"describedByType": "application/octet-steam"
}
]
|
| identifier | gov.noaa.nmfs.inport:26315 |
| issued | 1997-01-01T00:00:00.000+00:00 |
| keyword |
[
"abundance",
"distribution",
"summer",
"Alaska",
"DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
"Cetacean Assessment and Ecology Program"
]
|
| landingPage | https://www.fisheries.noaa.gov/inport/item/26315 |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 1997-01-01T00:00:00.000+00:00 |
| publisher |
{
"name": "Alaska Fisheries Science Center",
"@type": "org:Organization"
}
|
| references |
[
"https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/26315.pdf"
]
|
| rights | otherRestrictions, unclassified |
| spatial | -130.0,54.0,-165.0,62.0 |
| temporal | 1997-01-01T00:00:00+00:00/1999-01-01T00:00:00+00:00 |
| title | AFSC/NMML: Small cetacean aerial survey in Alaskan waters, 1997-1999 |
