Historical U.S. tropical cyclone wind data 1900 to 2024.
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This historical tropical cyclone (TC) wind dataset was generated for all US landfalling or US by-passing tropical and subtropical cyclones from 1900 to 2024. By-passing storms are storms that did not quite make landfall but still brought strong winds inland. Historical TC track data are obtained from the International Best Track for Climate Stewardship version 4.0 (IBTrACS; Knapp et al., 2010). The Willoughby et al. (2006) parametric radial wind model as provided in the stormwindmodel package (Anderson et al., 2017) is used to model the spatial wind fields above the atmospheric boundary layer. Winds (in knots) are brought down to the surface using a reduction factor of 0.72 within 100 km of the storm center that reduces linearly to 0.6 at 700 km from the storm center (Knaff et al., 2011). Wind gust values are estimated using a fixed gust factor of 1.49 (Harper et al. 2010). Data are measured at the storm-county level using 2010 vintage U.S. Census Bureau geography and the geographic extent is all counties in TC-affected states within the contiguous US. Wind values are calculated at the population-weighted county centroids from the 2010 US Census Bureau (2010). In total, the dataset contains wind metrics from 841 storms that brought tropical storm force gusts (at least 34 knots) to at least one US county.
本历史热带气旋(Tropical Cyclone, TC)风场数据集,针对1900年至2024年间所有在美国登陆或途经美国的热带与亚热带气旋构建。其中,途经气旋指虽未正式登陆,但仍将强风输送至内陆的气旋。历史热带气旋路径数据源自《国际气候管理最佳路径数据集4.0版》(International Best Track for Climate Stewardship version 4.0, IBTrACS; Knapp et al., 2010)。本数据集采用stormwindmodel工具包(Anderson et al., 2017)中集成的Willoughby等人(2006)参数化径向风模型,对大气边界层以上的空间风场进行模拟。以节(knots)为单位的高空风速,通过风速缩减因子换算至地表:在气旋中心100公里范围内,缩减因子为0.72;随距离增至700公里时,缩减因子线性降低至0.6(Knaff et al., 2011)。阵风风速通过固定阵风因子1.49估算得到(Harper et al., 2010)。 本数据集以“气旋-县”为统计单元,采用2010版美国人口普查局(U.S. Census Bureau)地理区划标准,地理覆盖范围为美国本土受热带气旋影响的各州所辖全部县份。风速数值基于2010年美国人口普查局(2010)的人口加权县几何中心计算得到。总体而言,本数据集涵盖了841场气旋的风场指标,这些气旋至少为1个美国县带来了热带风暴级阵风(风速不低于34节)。



