Climate Change and the Middle Atmosphere. Part III: The Doubled CO2 Climate Revisited
Climate Change and the Middle Atmosphere. Part III: The Doubled CO2 Climate Revisited
复制标题
气候变化和中间大气。
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
N. Balachandran
中科院分区：
文献类型：
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作者：
D. Rind;D. Shindell;P. Lonergan;N. Balachandran
摘要通过一系列实验研究了对流层-平流层系统对大气CO2倍增的响应，在这些实验中，允许海面温度根据辐射不平衡进行调整。戈达德空间研究所（GISS）的全球气候中层大气模型（GCMAM）使地表升温5.1°C，而平流层降温高达10°C。当臭氧被允许光化学反应时，平流层的冷却减少了20%，对流层的影响很小。平流层行星波能量增加，在高纬度地区产生动态变暖，与先前的GCMAM加倍CO2模拟一致;这种效应是由于对流层生成增加和折射改变，两者都受到模型热带对流层上部变暖幅度的强烈影响。这种变暖还导致平流层下部的纬向风更强，这似乎减少了平流层行星波2的能量和平流层变暖事件。...
Abstract The response of the troposphere–stratosphere system to doubled atmospheric CO2 is investigated in a series of experiments in which sea surface temperatures are allowed to adjust to radiation imbalances. The Goddard Institute for Space Studies (GISS) Global Climate Middle Atmosphere Model (GCMAM) warms by 5.1°C at the surface while the stratosphere cools by up to 10°C. When ozone is allowed to respond photochemically, the stratospheric cooling is reduced by 20%, with little effect in the troposphere. Planetary wave energy increases in the stratosphere, producing dynamical warming at high latitudes, in agreement with previous GCMAM doubled CO2 simulations; the effect is due to increased tropospheric generation and altered refraction, both strongly influenced by the magnitude of warming in the model’s tropical upper troposphere. This warming also results in stronger zonal winds in the lower stratosphere, which appears to reduce stratospheric planetary wave 2 energy and stratospheric warming events. ...