Increasing tropical cyclone intensity and potential intensity in the subtropical Atlantic around Bermuda from an ocean heat content perspective 1955-2019
Increasing tropical cyclone intensity and potential intensity in the subtropical Atlantic around Bermuda from an ocean heat content perspective 1955-2019
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从海洋热含量角度看1955-2019年百慕大周围副热带大西洋热带气旋强度和潜在强度的增加
DOI：
10.1088/1748-9326/abe493
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发表时间：
2021
影响因子：
6.7
通讯作者：
Hallam S
中科院分区：
文献类型：
--
作者：
Hallam S
我们调查了1955年至2019年间百慕大100公里半径范围内的热带气旋（TC）活动和强度。结果表明，随着时间的推移，台风的产生更加偏东，TC强度有明显的增强趋势（最大风速（Vmax）），十年Vmax中值从33 kts增加到63 kts，增加了30 kts（r= 0.94，p= 0.02），8月、9月、10月海表温度（SST）1.1 ℃（每十年0.17 C）r= 0.4（p< 0.01）和在0-300米深度范围内平均海洋温度增加0.5 ℃至0.7 ℃（每十年0.08 ℃至0.1 ℃）r= 0.3（p< 0.01）。TC强度和海洋温度之间的相关性最强，平均通过顶部50米的海洋层（
We investigate tropical cyclone (TC) activity and intensity within a 100 km radius of Bermuda between 1955 and 2019. The results show a more easterly genesis over time and significant increasing trends in TC intensity (maximum wind speed (Vmax)) with a decadal Vmax median value increase of 30 kts from 33 to 63 kts (r= 0.94, p= 0.02), together with significant increasing August, September, October sea surface temperature (SST) of 1.1 C (0.17 C per decade) r= 0.4 (p< 0.01) and increasing average ocean temperature between 0.5 C and 0.7 C (0.08 C–0.1 C per decade) r= 0.3 (p< 0.01) in the depth range 0–300 m. The strongest correlation is found between TC intensity and ocean temperature averaged through the top 50 m ocean layer (