Moderate tropical cyclone precipitation (TCP) is of great significance to regional water resource supply, while extreme TCP could bring significant adverse impacts to ecosystems and society, especially when tropical cyclones intensify rapidly, leaving no time to take prevention actions. Whether rapid intensification (RI) of tropical cyclones (TCs) affect TCP in both land and ocean remains unknown. Here we classified TCs which have undergone increases in the maximum sustained wind speed (MSW) by at least 30 knots within 24-h into RI category. We analyzed TCP totals provided by daily precipitation from Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks-Climate Data Record (PERSIANN-CDR) and spatial extent from 1983 to 2019 in the four categories based on regions (land and ocean) and RI-experiencing characteristics (with- and without-RI). TCP totals and spatial extent was identified by the restricted moving neighborhood method and semi-variogram framework. The results show that TCP totals on the ocean are larger than those on the land, since RI-experiencing TCP are higher than TCP without RI-experiencing, although RI processes tend to increase TCP totals in the extremely high percentiles more significantly on land than ocean. The effects of RI processes on global TCP spatial extent are not statistically significant, and there are no definite relations between MSW and TCP spatial extent. The four regions of the Northeast Pacific Ocean (EP), South Pacific Ocean (SP), Northwest Pacific Ocean (WP), and North Atlantic Ocean (NA) show increases in regional mean and extreme TCP totals. The highest increase in the extreme TCP totals (0.37 mm day⁻¹ year⁻¹) over the NA region occurs in the RI_ocean category, which is 2.6 times the average positive enhancement trend across all basins. The increasing rate of the extreme TCP totals over the WP region is higher in track points with RI-experiencing than without RI-experiencing. The category of RI_land over the regions of NA, EP and SP shows a significant increase in the regional mean TCP spatial extent.

中度热带气旋降水（TCP）对区域水资源供应具有重要意义，而极端热带气旋降水可能对生态系统和社会带来重大不利影响，特别是在热带气旋迅速增强，没有时间采取预防措施的情况下。热带气旋 (TC) 的快速增强 (RI) 是否会影响陆地和海洋中的 TCP 仍然未知。在这里，我们将 24 小时内最大持续风速（MSW）增加至少 30 节的 TC 分类为 RI 类别。我们使用人工神经网络-气候数据记录 (PERSIANN-CDR) 和 1983 年至 2019 年基于区域（陆地和海洋）和 RI- 的四个类别的空间范围，分析了来自遥感信息降水估计的每日降水提供的 TCP 总量。体验特征（有和没有 RI）。TCP总量和空间范围通过受限移动邻域法和半变异函数框架确定。结果表明，海洋上的 TCP 总量大于陆地上的 TCP 总量，因为经历了 RI 的 TCP 高于没有经历 RI 的 TCP，尽管 RI 过程倾向于在极高的百分位数中增加 TCP 总量在陆地上比在海洋上更显着. RI 过程对全球 TCP 空间范围的影响在统计上不显着，MSW 与 TCP 空间范围之间没有明确的关系。东北太平洋 (EP)、南太平洋 (SP)、西北太平洋 (WP) 和北大西洋 (NA) 四个区域的区域平均和极端 TCP 总量均有所增加。极端 TCP 总量的最高增幅（0.37 毫米天^-1年^-1）在 NA 地区出现在 RI_ocean 类别中，是所有盆地平均正增强趋势的 2.6 倍。有 RI 经验的轨迹点在 WP 区域的极端 TCP 总量的增长率高于没有 RI 经验的轨迹点。NA、EP 和 SP 区域的 RI_land 类别显示区域平均 TCP 空间范围显着增加。