NEFSC Survey 1997
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下载链接：
https://cmr.earthdata.nasa.gov/search/concepts/C1214589853-SCIOPS.html
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资源简介：
The Ocean Biogeographic Information System - Spatial Ecological Analysis of Megavertabrate Populations (OBIS-SEAMAP) is a spatially referenced database of data related to marine mammals, birds and turtles. This project is one of several nodes comprising the Ocean Biogeographic Information System (OBIS).
SUPPLEMENTAL INFORMATION: Data correction 03/08/06 Humback whale was mistakenly linked to Balaenidae (180531). It is now linked to Megaptera novaeangliae (180530). In addition to the sighting data, effort data was recorded every half hour or whenever conditions change. This dataset, therefore, should be used with the effort data.
CURRENTNESS REFERENCE: ground condition
SPATIAL REFERENCE INFORMATION - GEODETIC MODEL
Horizontal Datum Name: D_WGS_1984
Ellipsoid Name: WGS_1984
Semi-major Axis: 6378137.000000
Denominator of Flattening Ratio: 298.257224
提供机构：
SCIOPS
