This study examines how the structure and amount of cloud ice water content are related to rates of tropical cyclone (TC) intensification using CloudSat profiling radar measurements and simulations from the Hurricane Weather Research and Forecasting (HWRF) model. Observational studies have demonstrated the signal of TC intensification in the passive satellite measurements of frozen water concentration. However, the vertical and horizontal resolution of passive satellite observations are limited. CloudSat measurements and HWRF simulations provide high‐resolution data sets of ice water content to better understand its relationship with the rate of TC intensification. It is found that rapidly intensifying TCs have larger ice water content compared to TCs with slower intensification rates. Similar results are obtained even after accounting for the effect of initial TC intensity. Such precursors of rapidly intensifying TCs may be used to better understand and improve the prediction of TC intensification.

中文翻译：

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冰水含量是热带气旋快速加剧的先兆

这项研究使用CloudSat剖面雷达测量和飓风天气研究与预报（HWRF）模型的模拟，研究了云冰水含量的结构和数量与热带气旋（TC）强化速率之间的关系。观测研究表明，在被动卫星测量冷冻水浓度中，TC增强的信号。但是，被动卫星观测的垂直和水平分辨率是有限的。CloudSat测量和HWRF模拟提供了高分辨率的冰水含量数据集，以更好地了解其与TC强化速率的关系。已发现，与强化速度较慢的TC相比，快速强化的TC具有更大的冰水含量。即使考虑了初始TC强度的影响，也可以获得类似的结果。迅速增强TC的此类前体可用于更好地理解和改善TC增强的预测。