North Atlantic EXtratropical CYCLONE TRAcks and Lagrangian-Derived MOisture Uptake Dataset: ExCyclone-TRAMO (Part III) ⚠️ Warning: Outdated Dataset Version

Abstract: This dataset focuses on extratropical cyclones (ETCs) over the North Atlantic Ocean (NATL) during the extended winter seasons, spanning from October to April, between 1985 and 2022. The relationship between moisture uptake and precipitation in various mesoscale ETC structures remains an active research area. The provision of moisture parameters through tracer dispersion models enhances our understanding of moisture dynamics, the behaviour of ETCs, and the associated meteorological fields. Description: The dataset was constructed through dynamic downscaling of ERA5 reanalysis data using the Weather Research and Forecasting (WRF) model, in conjunction with the Lagrangian dispersion model FELXPART-WRF. It consists of 6-hourly time intervals with a horizontal resolution of 0.18°. This database is completely described in Coll-Hidalgo, et al. (2024). North Atlantic Extratropical Cyclone Tracks and Lagrangian-Derived Moisture Uptake Dataset. Scientific Data. [Preprint]. The dataset includes: Detailed tracking of ETCs across the North Atlantic: Date in year-month-day format hh (in UTC): Hour in Coordinated Universal Time latitude (degrees north): Latitude in degrees north longitude (degrees west): Longitude in degrees west MSLP (hPa): Mean sea level pressure in hectopascals (hPa) Radius (km): Cyclone radius in kilometres (km) Last closed isobar (hPa): Pressure at the last closed isobar in hectopascals (hPa) Additional parameters included in version 3 of this dataset: Low-level thermal wind parameter (VTL) High-level thermal wind parameter (VTU) The thermal asymmetry parameter (B) Two-Dimensional Masks Shaping ETCs: Radius Warm Conveyor Belt (WCB) footprint Related Areas A theoretical boundary encompassing a broader extent of the ETC circulation within a spiral shape Cyclone Moisture Uptake-Related Variables by ETCs life timesteps: Total moisture uptake Discrete Moisture Uptake (10-Day Backward) Moisture uptake by layers from the surface to 100 hPa. Dataset Repository Information This repository contains the dataset for the years 1985-1999. For users interested in datasets from subsequent periods, please refer to the following links: Years 1985-1999: Access the dataset hereYears 2000-2014: Access the dataset here A GitHub repository is available, providing example code that demonstrates how to use and handle the dataset effectively.摘要： 本数据集聚焦1985年至2022年间延长冬季（10月至次年4月）北大西洋(NATL)上空的温带气旋(ETCs)。不同中尺度温带气旋结构内的水汽摄取与降水的关联，仍是当前的研究热点。通过示踪剂扩散模型得到的水汽参数，可加深我们对水汽动力学、温带气旋活动及相关气象场的理解。 数据集说明： 本数据集依托ERA5再分析数据，采用天气研究与预报(WRF)模式结合拉格朗日扩散模型FELXPART-WRF开展动力降尺度后构建。数据集采用逐6小时的时间分辨率，水平分辨率为0.18°。该数据集的完整细节可参考Coll-Hidalgo等人（2024）发表于《Scientific Data》的预印本《北大西洋温带气旋路径与拉格朗日衍生水汽摄取数据集》。 数据集包含以下内容： ### 北大西洋温带气旋详细追踪信息 - 日期（格式：年-月-日） - 时（协调世界时(UTC)） - 纬度（北纬，单位：度） - 经度（西经，单位：度） - 平均海平面气压(MSLP)（单位：百帕(hPa)） - 气旋半径（单位：千米(km)） - 最内侧闭合等压线气压（单位：百帕(hPa)） ### 本数据集第3版新增参数 - 低层热成风参数(VTL) - 高层热成风参数(VTU) - 热力非对称参数(B) ### 塑造温带气旋的二维掩码 - 半径 - 暖输送带(WCB)影响相关区域 - 理论边界：呈螺旋状覆盖温带气旋更大范围环流的边界 ### 温带气旋生命史各时刻的水汽摄取相关变量 - 总水汽摄取量 - 离散水汽摄取（10天回溯时段） - 从地表至100百帕各层的水汽摄取量 数据集仓库信息： 本仓库包含1985-1999年的数据集。若需获取后续时段的数据集，请通过以下链接访问： - 1985-1999年数据集：访问该数据集 - 2000-2014年数据集：访问该数据集 本项目附带GitHub仓库，其中包含演示如何高效使用与处理该数据集的示例代码。