Physical oceanography during Hespérides cruises COCA-1 and COCA-2

The present data were collected from two cruises that took place in the Canary Current from September 10 to October 1, 2002 (COCA I) and from May 21 to June 7, 2003 (COCA II). The study was conducted along two zonal sections (21ºN and 26ºN) extending from the coastal upwelling to the open ocean at 26ºW, and focused on the epipelagic (0-200 m) and mesopelagic (200-1000 m) zones. The cruises consisted of a total of 31 hydrographic stations and 10 biogeochemical stations, half of them along each section, which were roughly equidistant. At each hydrographic station, conductivity, temperature and pressure were recorded by means of a Seabird 911+ CTD, mounted on a General Oceanics rosette sampler equipped with 24 10L-Niskin bottles.本数据集采集自两次于加那利海流（Canary Current）海域开展的科考航次：分别为2002年9月10日至10月1日的COCA I航次，以及2003年5月21日至6月7日的COCA II航次。本研究沿两条纬向断面（21°N与26°N）布设观测站位，断面范围自沿岸上升流区延伸至26°W处的开阔大洋，观测覆盖真光层（0~200米）与中层带（200~1000米）海域。两次航次共设置31个水文观测站位与10个生物地球化学观测站位，两条断面各占半数站位，且站位间距大致均等。在每个水文观测站位，均采用搭载于General Oceanics公司采水器架（配备24个10升尼斯金（Niskin）采水瓶）的Seabird 911+型温盐深（CTD）记录仪，记录电导率、温度与压力数据。