Temperature, salinity, dissolved oxygen, pH and chlorophyll profile data collected by CTD from the annual Longline Survey by multiple platforms in the Bering Sea and North Pacific Ocean from 2009-05-25 to 2009-08-29 (NCEI Accession 0136940)

The IPHC conducts an annual longline fish survey on a 10x10 nautical mile grid from southern Oregon north to the Gulf of Alaska, out along the Aleutian Island chain, and into the Bering Sea in depths ranging from 30 to 500 m. Beginning in 2000, the IPHC conducted a pilot project looking at the practicality of collecting oceanographic profile data alongside fishery data at the longline survey stations. The project was expanded to stations off Oregon in 2007 and coast-wide in 2009. Profiles were taken at each station immediately prior to hauling the longline gear so that oceanographic data collection is coincident with the haul. The data collected are surface to depth profiles of pressure (depth), temperature, conductivity (salinity), dissolved oxygen, pH, and chlorophyll-a concentration.

国际太平洋比目鱼委员会（IPHC）每年都会开展延绳钓鱼类调查，调查覆盖以10×10海里为单元的网格区域，范围北起俄勒冈州南部，延伸至阿拉斯加湾，沿阿留申群岛链向外拓展，并进入白令海，作业水深区间为30至500米。2000年起，IPHC启动试点项目，旨在探究在延绳钓调查站位同步采集海洋学剖面数据与渔业数据的可行性。该项目于2007年扩展至俄勒冈州外海站位，2009年进一步覆盖至全沿海区域。每个站位均在起吊延绳钓渔具前即刻开展剖面测量，确保海洋学数据采集与起吊作业同步进行。所采集的数据为从海面至水下深度的剖面数据，涵盖压强（水深）、温度、电导率（盐度）、溶解氧、pH值以及叶绿素a浓度。