Partial pressure (or fugacity) of carbon dioxide, temperature, salinity and other variables collected from surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from R/V Wecoma in the U.S. West Coast California Current System during the 2011 West Coast Ocean Acidification Cruise (WCOA2011) from 2011-08-12 to 2011-08-30 (NCEI Accession 0123607)

This dataset contains the surface underway pCO2 data of the first dedicated West Coast Ocean Acidification cruise (WCOA2011). The cruise took place August 12-30, 2011 aboard the R/V Wecoma. Ninety-five stations were occupied from northern Washington to southern California along thirteen transect lines. At all stations, CTD casts were conducted, and discrete water samples were collected in Niskin bottles. Underway measurements of pCO2 were collected during the duration of the cruise. The cruise was designed to obtain a synoptic snapshot of key carbon, physical, and biogeochemical parameters as they relate to ocean acidification (OA) in the coastal realm. During the cruise, some of the same transect lines were occupied as during the 2007 West Coast Carbon cruise, as well as many CalCOFI stations. This effort was conducted in support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP).

本数据集收录了首次专门针对西海岸海洋酸化实施的科考航次（WCOA2011）的表层走航式二氧化碳分压（pCO₂）实测数据。该航次于2011年8月12日至30日搭乘韦科马号科考研究船（R/V Wecoma）执行。航次沿13条断面布设95个观测站位，覆盖范围从华盛顿州北部延伸至加利福尼亚州南部。所有观测站位均开展了温盐深（CTD）剖面测量，并通过尼斯金采水瓶（Niskin bottles）采集离散海水样本。航次全程同步采集了走航式二氧化碳分压实测数据。本航次旨在获取近岸海域中与海洋酸化（OA）相关的关键碳循环、物理及生物地球化学参数的同步观测快照。航次期间，部分观测断面与2007年西海岸碳循环科考航次一致，同时还覆盖了大量加州合作海洋渔业调查（CalCOFI）站位。本数据集的构建服务于美国国家海洋和大气管理局（NOAA）海洋酸化项目（OAP）的近岸监测与研究目标。