THE ANTARCTIC TEMPERATURE INVERSION
THE ANTARCTIC TEMPERATURE INVERSION
复制标题
南极温度倒转
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
W. Connolley
中科院分区：
文献类型：
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作者：
W. Connolley
在南极冰盖内部，冬季的表面温度平均超过25°C。近地表空气的负浮力驱动着下降气流，这对南极洲的气候产生了重要影响。无线电探空仪测量的逆温与最近的GCM结果相结合，试图通过比较有限的观测验证数据与气候模型允许的更广泛的覆盖面，以评估拟议的地面温度和逆温强度之间的连接的准确性。这表明，使用多年数据，从回归技术推导反演强度的全大陆RMS误差约为2.99 °C，而使用基于夏季和冬季温度差异的方法的RMS误差约为2.55 °C。
In the interior of the Antarctic ice sheet the surface temperature inversion averages over 25°C in the winter months. The negative buoyancy of the near-surface air drives the katabatic windflow, which has important consequences for the climate of Antarctica. Radiosonde measurements of the inversion are combined with recent GCM results in an attempt to assess the accuracy of proposed connections between the surface temperature and the inversion strength by comparing the limited observational verification data with the much wider coverage that a climate model allows. This indicates that, using multi-annual data, the continent-wide RMS error of deducing the inversion strength from a regression technique is approximately 2ċ9°C, whereas using a method based upon differences between summer and winter temperaures has a RMS error of approximately 2ċ5°C.