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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >New Characteristics of the Tropical Tropopause Revealed by CHAMP/GPS Measurements
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New Characteristics of the Tropical Tropopause Revealed by CHAMP/GPS Measurements

机译：CHAMP / GPS测量揭示了热带对虾的新特征

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References(22) Cited-By(9) Supplementary materials(1) Structure and variability of the tropical tropopause are presented using radio occultation measurements by CHAMP/GPS (CHAllenging Mini satellite Payload/Global Positioning System) from May 2001 to December 2004 (with a total of 175,149 occultations). The tropopause heights defined by both lapse rate and cold point generally show large-scale, off-equatorial maxima (tropopause increase at 20°N or S than at equator), and sometimes even a high tropopause for about 0.3 to 0.65 km (on an average) at 20°N and S simultaneously than at the equator along a particular meridian, in contrast to our previous knowledge. Although this feature has already been reported partially during the summer monsoon season, the present study shows the seasonal and geographical distributions of the tropical tropopause comprehensively using a new promising observational technique. In addition, the vertical shape of the tropopause is found to be sharp in the equatorial region and broad in the subtropics especially in northern winter. Possible mechanisms are discussed in light of dynamical and radiative processes.
机译：参考文献（22）被引用的文献（9）补充材料（1）利用CHAMP / GPS（CHAllenging小型卫星有效载荷/全球定位系统）在2001年5月至2004年12月期间进行的无线电掩星测量，介绍了热带对流层顶的结构和变异性。总共175,149次掩盖）。由流失率和冷点确定的对流层顶高度通常显示出大规模的赤道外最大值（在20°N或S处，对流层顶的增加比在赤道处高），有时甚至在约0.3到0.65 km的高度上对流层顶（相对于我们先前的知识，在特定的子午线上同时在20°N和S处比在赤道处平均）。尽管已经在夏季风季节部分报道了这一特征，但本研究使用一种新的有前景的观测技术全面显示了热带对流层顶的季节和地理分布。此外，对流层顶的垂直形状在赤道地区很明显，在亚热带地区则很宽，特别是在北部冬季。根据动力学和辐射过程讨论了可能的机制。

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