Showman A P, Dowling T E
National Research Council (NRC)/NASA Ames Research Center, Mail Stop 245-3, Moffett Field, CA 94035-1000, USA.
Science. 2000 Sep 8;289(5485):1737-40.
Large-scale nonlinear simulations of Jupiter's 5-micron hot spots produce long-lived coherent structures that cause subsidence in local regions, explaining the low cloudiness and the dryness measured by the Galileo probe inside a hot spot. Like observed hot spots, the simulated coherent structures are equatorially confined, have periodic spacing, propagate west relative to the flow, are generally confined to one hemisphere, and have an anticyclonic gyre on their equatorward side. The southern edge of the simulated hot spots develops vertical shear of up to 70 meters per second in the eastward wind, which can explain the results of the Galileo probe Doppler wind experiment.
对木星5微米热点的大规模非线性模拟产生了长期存在的相干结构,这些结构导致局部地区下沉,解释了伽利略探测器在一个热点内测得的低云量和干燥现象。与观测到的热点一样,模拟出的相干结构在赤道方向受到限制,具有周期性间距,相对于气流向西传播,通常局限于一个半球,并且在其向赤道一侧有一个反气旋环流。模拟热点的南边缘在东风中产生了高达每秒70米的垂直切变,这可以解释伽利略探测器多普勒风实验的结果。