Water column chlorophyll concentrations from lagoon, river, and ocean sites along the Alaska Beaufort Sea coast, 2018-ongoing

Multiple water types (river, lagoon, ocean) from the North Slope of Alaska and nearshore Beaufort Sea are sampled seasonally by the Beaufort Lagoon Ecosystems LTER (BLE LTER) Core Program to investigate biogeochemical linkages between terrestrial, lagoon, and open ocean ecosystems. Water samples from multiple depths are collected during full ice cover (April), ice break-up (mid-June to early July), and open water (late July and August) periods for quantification of chlorophyll-a concentrations. Concentrations are reported in micrograms of chlorophyll per liter of filtered seawater (μg/L).

阿拉斯加北坡与博福特海近岸区域的三类水体（河流、泻湖、海洋），由博福特泻湖生态系统长期生态研究（Beaufort Lagoon Ecosystems LTER, BLE LTER）核心项目开展季节性采样，旨在探究陆地、泻湖与开阔海洋生态系统之间的生物地球化学关联。该项目于冰封期（4月）、融冰期（6月中旬至7月初）及开阔水域期（7月下旬至8月）采集多深度水体样本，用于叶绿素a浓度的定量测定。浓度以每升过滤海水中的叶绿素微克数（μg/L）为单位进行报告。