Southern Ocean CTD data collected from the CEAMARC cruise of the Aurora Australis, 2007-2008

Oceanographic measurements were conducted on and around the Antarctic shelf in the vicinity of the Mertz Glacier during the southern summer of 2007/2008, on Aurora Australis voyage au0803, V3 2007/2008. Data were collected as part of the CASO (oceanography) and CEAMARC (fishing) programs. The CASO program included occupation of the southern portion of the SR3 transect, plus additional transects down the slope. A total of (130) CTD vertical profile stations were taken, most to within 15 m of the bottom. Over (1400) Niskin bottle water samples were collected for the measurement of salinity, dissolved oxygen, nutrients, CFCs, dissolved inorganic carbon, alkalinity, oxygen-18, germanium, and biological parameters, using a 24 bottle rosette sampler. Full depth current profiles were collected by a lowered acoustic Doppler profiler (LADCP) attached to the rosette package, while near surface current data were collected by a ship mounted ADCP. Additional CTD profiles were taken at 2 subantarctic sites on the transit south. An array of 4 current meter and thermosalinograph moorings were deployed across a basin outflowing from the Mertz Polynya region.

2007/2008年南半球夏季，依托极光号科考船（Aurora Australis）航次au0803、V3 2007/2008，研究团队在默茨冰川（Mertz Glacier）周边的南极陆架及邻近海域开展了海洋学观测。本次观测所获数据由CASO（海洋学项目）与CEAMARC（渔业项目）共同采集产出。CASO项目的观测内容涵盖SR3断面（SR3 transect）南部区域的站位观测，以及沿陆坡延伸的多条附加断面测量。本次观测共完成130个CTD（温盐深剖面仪）垂直剖面站位，绝大多数测站的测量深度可达海底以上15米范围内。研究团队采用搭载24个采水瓶的阵列式采水器（rosette sampler），采集了超过1400个尼斯金采水瓶（Niskin bottle）水样，用于检测盐度、溶解氧、营养盐、氟氯化碳（CFCs）、溶解无机碳、碱度、氧-18、锗及各类生物参数。配套搭载于采水器阵列的下放式声学多普勒剖面仪（lowered acoustic Doppler profiler, LADCP）采集了全水深海流剖面数据，近表层海流数据则由船载声学多普勒剖面仪（ship-mounted ADCP）获取。在南向航行过境期间，团队还在2个亚南极站位开展了补充CTD剖面测量。在默茨冰间湖（Mertz Polynya）区域的跨盆外流通道上，部署了由4台海流计与温盐监测锚系（thermosalinograph moorings）组成的观测阵列。