Atlantic meridional overturning circulation observed by the RAPID-MOCHA-WBTS (RAPID-Meridional Overturning Circulation and Heatflux Array-Western Boundary Time Series) array at 26N from 2004 to 2014.

The RAPID-MOCHA-WBTS (RAPID-Meridional Overturning Circulation and Heatflux Array-Western Boundary Time Series) programme has produced a continuous time series of the Atlantic Meridional Overturning Circulation (AMOC) at 26°N that started in April 2004. This release of the time series extends the data to March 2014. The 26°N AMOC time series is derived from measurements of temperature, salinity, pressure and water velocity from an array of moored instruments that extend from the east coast of the Bahamas to the continental shelf off Africa east of the Canary Islands. The AMOC calculation also uses estimates of the transport in the Florida Strait derived from sub-sea cable measurements calibrated by regular hydrographic cruises. The component of the AMOC associated with the wind driven Ekman layer is derived from satellite scatterometer measurements. This release of the data includes a document with a brief description of the calculation of the AMOC time series and references to more detailed description in published papers. The 26°N AMOC time series and the data from the moored array are curated by the British Oceanographic Data Centre (BODC). The RAPID-MOCHA-WBTS programme is a joint effort between NERC in the UK (Principle Investigator David Smeed since 2012 and Stuart Cunningham from 2004 to 2012), NOAA (PIs Chris Meinen and Molly Baringer) and NSF (PI Prof. Bill Johns, Uni. Miami) in the USA.

RAPID-MOCHA-WBTS（RAPID经向翻转环流与热通量阵列-西边界时间序列）项目产出了自2004年4月起、位于26°N的大西洋经向翻转环流（Atlantic Meridional Overturning Circulation, AMOC）连续时间序列。本次数据发布将该时间序列的观测时长延伸至2014年3月。该26°N处的AMOC时间序列，源自从巴哈马东海岸延伸至加那利群岛以东非洲外海大陆架的锚定观测仪器阵列所获取的温度、盐度、压力及水流速度实测数据。AMOC的计算还纳入了通过定期水文科考航次校准的海底电缆测量所得的佛罗里达海峡输运量估算值。与风驱动埃克曼层相关的AMOC分量，则基于卫星散射计测量数据得到。本次发布的数据包含一份简要说明AMOC时间序列计算方法的文档，以及已发表论文中更详细描述的参考文献。26°N处的AMOC时间序列与锚定阵列观测数据，均由英国海洋数据中心（British Oceanographic Data Centre, BODC）进行管理维护。RAPID-MOCHA-WBTS项目由英国自然环境研究委员会（NERC，2012年起首席研究员为David Smeed，2004至2012年为Stuart Cunningham）、美国国家海洋和大气管理局（NOAA，首席研究员为Chris Meinen与Molly Baringer）以及美国国家科学基金会（NSF，首席研究员为迈阿密大学Bill Johns教授）联合发起。

搜集汇总

背景与挑战

背景概述

该数据集是一个连续时间序列，记录了2004年4月至2014年3月期间大西洋经向翻转环流（AMOC）在26°N纬度的观测数据。数据通过RAPID-MOCHA-WBTS阵列收集，结合了系泊仪器测量、佛罗里达海峡运输估算和卫星风场数据，提供了AMOC的详细监测。数据集由英国和美国多个研究机构合作维护，旨在支持海洋环流和气候变化研究。