Reykjanes Ridge Experiment (RREX) dataset

the reykjanes ridge is a major topographic feature of the north-atlantic ocean. it lies in a central position along the main paths followed by the upper and lower limbs of the meridional overturning cell (moc), which contributes at moderating the european climate in creating a transport of heat toward the north atlantic. our hypothesis is that the reykjanes ridge influences the main components of the upper and lower limbs of the moc because it is a strong constraint on the horizontal and vertical circulation, it impacts the water mass distribution and evolution and it is a region of intense turbulent mixing. the objective of the rrex project is to conduct a process study in order to better understand the role of the reykjanes ridge on the dynamics and water mass transformation in the subpolar gyre and ultimately on the moc. this project relied on two hydrographic cruises carried out in 2015 and 2017 to acquire the adequate dataset to (1) provide a synoptic high-resolution and full depth survey to monitor the flow along and across the ridge, (2) to quantify the variability of the vertical and horizontal structure of the currents parallel to the ridge at daily to seasonal time-scales and (3) to provide sufficient turbulence observations to monitor the heterogeneous and intermittent mixing processes.this dataset currently provides the measurements from the 133 ctdo2 stations realized during the rrex2015 cruise, carried out from the 5th of june to the 10th of july 2015. at each station, the following measurements are available: (1) pressure, temperature, conductivity and dissolved oxygen measurements with a ctdo2 probe, (2) salinity and oxygen concentration data from sea water samples at 28 levels. it also provides os38 and os150 s-adcp data acquried in transit during the rrex2015 cruise. the two datasets were processed and adjusted following petit et al. 2018 [http://doi.org/10.13155/53471].

雷克雅内斯脊是北大西洋海域的重要地形特征，位于南北逆转流细胞（MOC）上下肢主要路径的中心位置，该细胞对调节欧洲气候，形成向北大西洋的热量传输起到了至关重要的作用。我们的假设是，雷克雅内斯脊通过对其水平及垂直循环的强烈约束，对南北逆转流细胞上下肢的主要组成部分产生影响，它影响了水团分布和演变，并成为剧烈湍流混合的区域。RREX项目的目标是进行过程研究，以更好地理解雷克雅内斯脊在次极地环流动力学和水团转化中的作用，以及最终对南北逆转流细胞的影响。该项目依赖2015年和2017年进行的两次海洋水文巡航，以获取适当的 dataset，旨在（1）提供对脊线及其横穿区域进行的高分辨率和全深度综合调查，以监测流量，（2）量化与脊平行的水流在日到季节时间尺度上的垂直和水平结构变化，（3）提供足够的湍流观测数据，以监测异质和间歇性混合过程。此 dataset 目前提供了2015年6月5日至7月10日RREX2015巡航期间133个CTDO2站点测量数据，在每个站点，可获取以下测量数据：（1）使用CTDO2探头进行的压力、温度、电导率和溶解氧测量，（2）海水样本在28个层次的盐度和氧浓度数据。它还提供了RREX2015巡航期间获取的OS38和OS150 S-ADCP数据。这两个 dataset 均按照Petit等（2018）[http://doi.org/10.13155/53471]进行处理和调整。