On the existence and strength of the summer subtropical anticyclones : Bernhard Haurwitz memorial lecture
On the existence and strength of the summer subtropical anticyclones : Bernhard Haurwitz memorial lecture
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发表时间：
1996
影响因子：
8
通讯作者：
B. Hoskins
中科院分区：
文献类型：
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作者：
B. Hoskins
亚热带的反气旋通常与辐射冷却有关，而哈德利细胞的下降臂适合冬季反气管。冬季，夏季和冬季亚热带的循环性质。随着邻近的大陆的季风释放，这种绝热的加热将极点推向了25°的纬度，因此深层下降是诱导的。然后，被抑制的会议被视为下降下的放大器。上升，导致冷海面温度和加强抑制运送。
The subtropical anticyclones are usually related to radiative cooling and the descending arm of the Hadley Cell. This explanation works well for the winter anticyclone belt. However, the summer subtropical anticyclones are in most measures stronger, as well as being more longitudinally localized, than their winter counterparts. The nature of the circulations in the summer and winter subtropics, and the Tropics are compared. It is hypothesized that the basic cause of the summer anticyclones is the monsoonal latent heat release over the neighboring continents to the east. As this diabatic heating pushes poleward to near 25° latitude, so deep descent is induced poleward and westward of it. Orographic effects can act to localize this descent. Enhanced radiative cooling and suppressed convection are then viewed as amplifiers of the descent. Under this descent is the equatorward moving air of an anticyclone, which is centered to the west. This wind acts to drive oceanic upwelling, leading to cold sea surface temperatures and reinforcement of the suppression of convection.