Data · collection
NMML Small Cetacean (coastal) Aerial Survey 1997, Gulf of Alaska
Listed in NASA Earthdata CMR
Aerial surveys was conducted in 1997 progressing from east to west, to estimate abundance of the Southeast Alaska (SEA, 9,844 km survey effort), Gulf of Alaska (GOA, 10,127 km survey effort), and Bering Sea (BS, 7849 km survey effort) harbor porpoise stocks.
Description
In addition, 1355 km of survey effort during a Cook Inlet beluga survey were analyzed to add to the coverage for the GOA stock. Data from an independent observer concentrating on the trackline was used to estimate perception bias.
Significant differences in g(0) and effective strip width (ESW) were found between the survey conducted in 1997 and the 1998 and 1999 surveys, therefore 1997 was treated separately. In both analyses, g(0) was dependent on visibility reported by observers, and in the 1997 data ESW was dependent as well. The 1997 survey included the inland waters of southeastern Alaska and the eastern Gulf of Alaska from Dixon Entrance to Cape Suckling
Links
Get the data
- iobis.org /mapper/?dataset=2178 ↗
Access data from the OBIS and OBIS-SEAMAP websites.
download · from NASA CMR
- seamap.env.duke.edu /datasets/detail/115 ↗
Access data from the OBIS and OBIS-SEAMAP websites.
download · from NASA CMR
Documentation and papers
- VIEW RELATED INFORMATION seamap.env.duke.edu/prod/services/datasets/show_xml_metadata.php?datasetid=115 ↗
documentation · from NASA CMR
- seamap.env.duke.edu ↗
Ocean Biogeographic Information System - Spatial Ecological Analysis of Megavertebrate Populations (OBIS-SEAMAP)
documentation · from NASA CMR
- Biological Data Profile usgs.gov/core_science_systems/csas/metadata/standards.html ↗
documentation · from NASA CMR
- ArcGIS metadata format desktop.arcgis.com/en/arcmap/10.3/manage-data/metadata/the-arcgis-metadata-format… ↗
documentation · from NASA CMR
- Ocean Biogeographic Information System (OBIS) iobis.org ↗
documentation · from NASA CMR
- OBIS-SEAMAP Map Service seamap.env.duke.edu/search ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214586442-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214586442-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- AIRCRAFT · Animals Vertebrates · Fish
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214586442-SCIOPS | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates/fish | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:aircraft | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |