Hydrographic, nutrient and phytoplankton biomass surveys in Palm Passage, central Great Barrier Reef (1983)

A transect of nine oceanographic stations, extending from the GBR lagoon to the outer slope, was surveyed through Palm Passage (central Great Barrier Reef) in 1983, with an emphasis on the summer upwelling period. In total, 128 temperature and salinity profiles were obtained. Water samples were collected at five stations on the shelf and the outer slope (total = 100 stations) for analysis of inorganic nutrients and phytoplankton pigments. The frequency of sampling was most intense during the late summer (January - March), with five cruises of six days duration at one to three week intervals. During these cruises, the transect was occupied very second day. For the remainder of the year, single transects were occupied at intervals of approximately two months.

1983年，研究人员沿棕榈航道（Palm Passage，大堡礁中部）布设了一条包含9个海洋学站位的调查断面，该断面从大堡礁（Great Barrier Reef）潟湖延伸至外坡，本次调查以夏季上升流时段为核心研究重点。本次调查共获取128组温度与盐度剖面数据。研究人员在陆架与外坡区域的5个站位（总采样站位共计100个）采集了水样，用于无机营养盐与浮游植物色素的分析检测。采样频次在夏末（1月至3月）达到峰值，期间开展了5次为期6天的航次任务，航次间隔为1至3周。在上述航次期间，每间隔1天即完成一次断面调查作业。在该年度剩余时段，每间隔约2个月开展单次断面调查。