Counts of Alaska Steller sea lion pups conducted on rookeries in Alaska from 1961-06-22 to 2019-07-04 (NCEI Accession 0128189)
收藏Global Change Master Directory (GCMD)2016-06-07 更新2026-04-25 收录
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https://cmr.earthdata.nasa.gov/search/concepts/C2089376799-NOAA_NCEI.html
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资源简介：
This database contains counts of Steller sea lion pups on rookeries in Alaska made between 1961 and 2019. Pup counts are conducted in June-July. Pups are counted from the ground (by walking along the rookery), from cliff-side overlooks, and from aerial images (vertical orientation). Pup counts conducted in late June-mid July are considered to represent a complete census of pups produced at each site during the year.
提供机构：
NOAA_NCEI
创建时间：
2016-06-07
