Census of Gulf Stream Warm Core Ring formation from 2018 to 2023

This dataset consists of a census of warm core ring formation locations, times, and sizes from the Gulf Stream between 2018 and 2023. This work builds upon the following dataset: Gangopadhyay, A., Gawarkiewicz, G. (2020) Yearly census of Gulf Stream Warm Core Ring formation from 1980 to 2017. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-05-06 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.810182.1 [access date] In addition, it is related to two additional datasets containing warm core ring weekly tracking data: (i) Warm Core Ring trajectory information from 2011 to 2020 -- Silver et al. (2022a) (https://doi.org/10.5281/zenodo.6436380). (ii) Warm Core Ring Trajectories in the Northwest Atlantic Slope Sea (2021-2023) – Porter et al. (2024) (https://doi.org/10.5281/zenodo.10392322) The format of this data set is similar to the datasets mentioned above, and the following description is adapted from those. This dataset contains a yearly census of Gulf Stream Warm Core Ring formation from 2018 to 2023. This continuous census file contains the formation and demise times and locations, and the area at formation for warm core rings that lived a week or more. Each row represents a unique Warm Core Ring and is identified by a unique alphanumeric code 'WEyyyymmddA', where 'WE' represents a Warm Eddy (as identified in the analysis charts); 'yyyymmdd' is the year, month and day of formation; and the last character 'A' represents the sequential sighting of the eddies in a particular year. For example, the first ring formed in 2018, having a trailing alphabet of 'G', indicates that six rings were carried over from 2017, which are still observed on January 1, 2018. Creating the WCR tracking dataset follows the same methodology as the previously generated WCR census (Gangopadhyay et al., 2019, 2020). This census was created from Jenifer Clark’s Gulf Stream Charts. These charts show the location, extent, and temperature signature of currents (GS, shelf-slope front), warm and cold-core rings (WCRs and CCRs), other eddies, shingles, intrusions, and other water mass boundaries in the Gulf of Maine, over Georges Bank, and in the Middle Atlantic Bight. An example chart is shown in Figure 1a of Gangopadhyay et al. (2019). A year-long animation for these charts for 2017 is presented in the supporting information of Gangopadhyay et al. (2020) https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019JC016033. The charts are generated 2-3 times a week from 2018 to 2023. Thus, we used approximately 624+ Charts for the 6 years of analysis. These charts were then reanalyzed between 75°W and 55°W using QGIS 2.18.16 (2016) and geo-referenced on a WGS84 coordinate system (Decker, 1986).本数据集涵盖2018年至2023年间墨西哥湾流（Gulf Stream）暖核环（Warm Core Ring, WCR）的形成位置、时间与规模普查数据。本研究基于以下公开数据集构建： Gangopadhyay, A., Gawarkiewicz, G. (2020) 《1980—2017年墨西哥湾流暖核环形成年度普查》，生物与化学海洋学数据管理办公室（Biological and Chemical Oceanography Data Management Office, BCO-DMO），版本1，发布日期2020-05-06，[如适用，请注明所使用的子集]，doi:10.26008/1912/bco-dmo.810182.1 [访问日期] 此外，本数据集还与另外两份包含暖核环周度追踪数据的数据集相关： (i) 2011—2020年暖核环轨迹数据 —— Silver等（2022a），doi:10.5281/zenodo.6436380 (ii) 西北大西洋坡海暖核环轨迹数据集（2021—2023）—— Porter等（2024），doi:10.5281/zenodo.10392322 本数据集格式与上述公开数据集一致，以下说明改编自前述文献。本数据集包含2018年至2023年墨西哥湾流暖核环形成的年度普查数据。该连续普查文件记录了存活时长≥1周的暖核环的形成与消亡时间、位置，以及形成时的面积。每一行对应一个唯一的暖核环，并以唯一的字母数字编码"WEyyyymmddA"进行标识：其中"WE"代表暖涡（对应分析图中的暖涡）；"yyyymmdd"为形成的年、月、日；末尾字符"A"代表该年度内涡旋的连续观测序号。例如，2018年首个形成的暖核环尾缀字母为"G"，表明2017年已有6个暖核环延续至2018年1月1日仍被观测到。 暖核环追踪数据集的构建方法与此前发布的暖核环普查数据集（Gangopadhyay等，2019、2020）一致。本普查数据源自詹妮弗·克拉克（Jenifer Clark）绘制的墨西哥湾流海图。此类海图标注了缅因湾、乔治浅滩及中大西洋湾海域内的海流（墨西哥湾流、陆架-坡峰锋面）、冷暖核环（WCR与CCR）、其他涡旋、水团碎片、入侵现象及其他水团边界的位置、范围与温度特征。Gangopadhyay等（2019）的图1a展示了示例海图；Gangopadhyay等（2020）的补充材料中提供了2017年全年海图的动画演示（https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019JC016033）。2018年至2023年间，海图每周生成2-3次，因此本次6年分析共使用约624张海图。我们采用QGIS 2.18.16（2016）对75°W至55°W范围内的海图进行重新分析，并将其地理配准至WGS84坐标系（Decker，1986）。