Global Energy and Moisture Budgets from Rawinsonde Data
Global Energy and Moisture Budgets from Rawinsonde Data
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DOI：
10.1175/1520-0493(1988)116
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发表时间：
1988-02
影响因子：
3.2
通讯作者：
H. Savijärvi
中科院分区：
文献类型：
--
作者：
H. Savijärvi
摘要：基于奥尔特（Oort）对地球物理流体动力学实验室（GFDL）10年无线电探空仪原始数据分析，给出了全球大气水汽和能量的垂直积分收支情况。温带自由大气平均风散度由涡度平衡推导得出，并施加了质量平衡。经如此修正的数据结果以12 - 2月（DJF）和6 - 8月（JJA）平均垂直速度、蒸发减降水、平均非绝热加热、总能量通量散度及其势的地图形式呈现。还展示了年度向极能量输送以及所隐含的海洋输送。结果表明，从涡度平衡获取辐散风的方法在中纬度效果良好，并得出了与全球大气研究计划第一次全球试验（FGGE）数据估计相当的收支情况。热带地区的结果不受任何模式假设（如对流方案，文中简要讨论了其可能对资料同化方案气候产生的影响）的影响，但对海洋上数据缺失非常敏感。
Abstract Vertically integrated budgets of moisture and energy for the global atmosphere are presented, based on the GFDL 10-year rawinsonde data analyses of Oort. The extratropical free atmospheric mean wind divergence is derived from vorticity balance, and mass balance is imposed. The results of data so modified are shown in the form of DJF and JJA maps of mean vertical velocity, evaporation minus precipitation, mean diabatic beating, total energy flux divergence and its potential. Also the annual poleward enemy transport are shown together with the implied oceanic transports. The results indicate that the procedure of getting divergent winds from vorticity balance works wed at mid-latitudes and produces budgets comparable to FGGE data estimates. The results for the tropics are free of any model assumptions such as convection schemes (which may influence data-assimilation scheme climates as is briefly discussed) but are quite sensitive to the lack of data over oceans.