GOXBT: A high-resolution boundary current product from Gridded Observations of eXpendable BathyThermograph (XBT) transects

This dataset is the partner dataset to the submitted publication: A high-resolution boundary current product from Gridded Observations of eXpendable BathyThermograph (XBT) transects Marlos Goes, Shenfu Dong, Rebecca Cowley, Yuri Cotroneo, Janet Sprintall, Mauro Cirano, Antonino Ferola, Tayanne Ferreira, Werner Barros, Zhetao Tan, Giuseppe Aulicino, Ken Ridgway, Justine Parks, Jared Brzenski, Gael Forget, Claudia Fratianni The Ship Of Opportunity Expendable BathyThermograph (SOOP-XBT) Network has been measuring upper ocean temperature aboard volunteer vessels over multiple decades in key locations of the global ocean. Through international collaboration, these data are systematically collected, quality-controlled and made available to the scientific and operational communities. The network’s strengths: its low cost, high spatial resolution, and long-term repeatability, have made it a key asset for advancing ocean state estimation and climate studies. Here, we introduce a synthesis of formatted XBT data from selected transects across the global ocean, and provide a high-quality gridded product of temperature and derived salinity and absolute geostrophic velocity across five major boundary currents: the Gulf Stream, Kuroshio, East Australian Current, Brazil Current and the Antarctic Circumpolar Current. The Gridded Observations of XBT transects (GOXBT) product offers a unique temporal coverage and spatial resolution, providing a critical resource for ocean model and reanalysis validation, and supporting future studies on the variability and dynamics of major ocean currents.本数据集为对应投稿论文的配套数据集： 《基于投弃式温深仪（Expendable BathyThermograph, XBT）断面格点观测的高分辨率边界流数据集》 作者：Marlos Goes、Shenfu Dong、Rebecca Cowley、Yuri Cotroneo、Janet Sprintall、Mauro Cirano、Antonino Ferola、Tayanne Ferreira、Werner Barros、Zhetao Tan、Giuseppe Aulicino、Ken Ridgway、Justine Parks、Jared Brzenski、Gael Forget、Claudia Fratianni 全球海洋关键海域的志愿观测船搭载的投弃式温深仪（Ship Of Opportunity Expendable BathyThermograph, SOOP-XBT）观测网，数十年来持续监测上层海洋温度。通过国际协作，这些数据已被系统化收集、质量控制并向科研与业务共同体开放共享。该观测网凭借低成本、高空间分辨率与长期可重复性的优势，已成为推进海洋状态估计与气候研究的核心资产。 本研究整合了全球海洋选定断面的格式化XBT观测数据，构建了覆盖五大主要边界流海域的高质量温度数据集，并反演得到盐度与绝对地转流速格点产品，涉及海域包括湾流、黑潮、东澳大利亚流、巴西流与南极绕极流。本XBT断面格点观测（Gridded Observations of XBT transects, GOXBT）数据集拥有独特的时间覆盖范围与空间分辨率，可为海洋模式与再分析结果的验证提供关键支撑资源，同时助力未来针对主要洋流变异与动力学机制的相关研究。