A mesoscale cyclone, which developed in early September 2015 over the ice-free Laptev Sea and then, gradually intensifying, moved towards the East Siberian Sea, has been studied using the WRF model and satellite data. It is shown that the interaction between the cyclone and the underlying surface, in particular, both sensible and latent heat fluxes from the sea surface and the presence/absence of the sea ice in the East Siberian Sea, had no significant effect on the intensification of the cyclone. It is found that the main reason for the cyclone intensification was baroclinic instability, i.e., interaction with an upper level potential vorticity anomaly. It is also shown that the main reason for the formation of the warm core in the cyclone was the transport of relatively warm surface air masses from the land to the sea, and the release of latent heat during convection was of minor importance.

中文翻译：

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根据卫星和数值模拟数据，2015 年 9 月 1-3 日中尺度气旋的发展

一个中尺度气旋于 2015 年 9 月上旬在无冰的拉普捷夫海上空发展，然后逐渐增强，向东西伯利亚海移动，已使用 WRF 模型和卫星数据进行了研究。结果表明，气旋与下垫面之间的相互作用，特别是来自海面的感热和潜热通量以及东西伯利亚海海冰的存在/不存在，对气旋的强化没有显着影响。旋风。发现气旋增强的主要原因是斜压不稳定，即与上层位涡异常相互作用。还表明，在气旋中形成暖核的主要原因是相对温暖的地表气团从陆地到海洋的输送，