Solar sensitivity experiments for the pre-industrial time period using the comprehensive global climate model CCSM3 (Community Climate System Model 3)

The Southern Hemisphere Westerly Winds (SWW) constitute an important zonal circulation that influences large-scale precipitation patterns and ocean circulation. Variations in their intensity and latitudinal position have been suggested to exert a strong influence on the CO2 budget in the Southern Ocean, thus making them a potential factor affecting the global climate. The possible influence of solar forcing on SWW variability during the Holocene is addressed. Solar sensitivity experiments with a comprehensive global climate model (CCSM3) are carried out to study the response of SWW to solar variability. In addition, It is shown that a high-resolution iron record from the Chilean continental slope (41° S), which is interpreted to reflect changes in the position of the SWW, is significantly correlated with reconstructed solar activity during the past 3000 years. […]

南半球西风带（SWW）构成了一种重要的纬向环流，它对大规模降水模式和海洋环流产生重要影响。对其强度和纬度位置的变化研究表明，它们可能对南大洋的二氧化碳收支产生强烈影响，因此成为影响全球气候的潜在因素。文章探讨了在全新世期间太阳辐射对SWW变率的可能影响。通过使用综合全球气候模型（CCSM3）进行的太阳敏感性实验，研究了SWW对太阳变率的响应。此外，研究表明，来自智利大陆坡（41° S）的高分辨率铁记录，被解释为反映了SWW位置的变动，与过去3000年重建的太阳活动显著相关。