Interdecadal Variability in the Stratosphere: Its Relationship to QBO, Solar Activity, and Biennial Variability in the Troposphere

ATM-9410277 Salby，Murry大气系统和分析标题：平流层的年代际变化：它与QBO、太阳活动和对流层的两年变化的关系平流层中北极温度和赤道风的相关表现出年际变化，在表面上，似乎与太阳黑子活动的11年周期有关。类似于北极温度的变化，当数据根据QBO的相位分层时，极地-热带相关性表明了与太阳活动年际变化的物理联系。将研究平流层行为实际记录中的年际变化特征，以确定年代际特征的物理意义及其与太阳活动的关系。同样的调查也将在月平均温度和运动记录中进行。然后，采样将根据QBO的相位进行系统的退化和分层，以确定极地温度和与热带相关的年代际特征中有多少来自实际的太阳变率，有多少来自QBO的混叠。初步分析表明，在极地平流层中也存在的两年一度的变化对热带-极地相关的年代际变化起着重要作用。两年变率与极地平流层的准两年变率一样大，是年际变率的重要组成部分，因此本身就很重要。两年一度的变化将首先在全球温度和运动记录中被诊断为平流层。一旦在环流中了解了这种两年一次的变化，将在臭氧中进行检查。然后，两年一度的变化将追溯到对流层，在那里将在运动和云层分析中对其进行诊断。这项调查将在Zon al-Mean属性中进行探索。最终，将在纬向不对称波场中探索两年一度的变化，在Eliassen-Palm通量中，这将被诊断为传递从对流层热带对流到温带外平流层的两年一度变化的一个因素。这项研究很重要，因为它试图增加关于太阳-气候关系中一个有争议的话题的知识。

Abstract ATM-9410277 Salby, Murry Atmospheric Systems and Analysis Title: Interdecadal Variability in the Stratosphere: Its Relationship to QBO, Solar Activity, and Biennial Variability in the Troposphere Correlations between North Polar temperature and equatorial wind in the stratosphere exhibit interannual variations that on the surface, appear to be related to the 11-year cycle of sunspot activity. Resembling variability in North Pole temperature when data are stratified according to the phase of the QBO, the polar- tropical correlation suggests a physical connection to interannual variability of solar activity. Signatures of interannual variability in actual records of stratospheric behavior will be studied to establish the physical significance of interdecadal signatures and their relationship to solar activity. The same investigation will be performed on monthly-mean records of temperature and motion. The sampling will then be systematically degraded and stratified according to the phase of the QBO to determine how much of the interdecadal signatures in polar temperature and in correlation with the tropics follows from actual solar variability and how much follows from aliasing by the QBO. Preliminary analysis indicates that biennial variability, which is also present in the polar stratosphere, figures importantly in producing the interdecadal variation of tropical-polar correlation. As large as quasi-biennial variability in the polar stratosphere, biennial variability represents an important component of interannual variability and therefore is important in its own right. Biennial variations will be diagnosed first in the stratosphere in global records of temperature and motion. Once understood in the circulation, the biennial variation will be examined in ozone. Biennial variability will then be traced back to the troposphere, where it will be diagnosed in analyses of motion and cloud cover. This investigation will be explored in the zon al-mean properties. Eventually, biennial variability will be explored in the zonally-asymmetric wave field, which in the Eliassen-Palm flux, will be diagnosed as an agent for communicating biennial variations from tropical convection in the troposphere to the extratropical stratosphere. This research is important because it seeks to add knowledge about a controversial topic in sun-climate relationship.