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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Intercomparison of Stratospheric Aerosol and Gas Experiment (SAGE) with Umkehr[64] and Umkehr[92] ozone profiles and time series: 1979-1991
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Intercomparison of Stratospheric Aerosol and Gas Experiment (SAGE) with Umkehr[64] and Umkehr[92] ozone profiles and time series: 1979-1991

机译:平流层气溶胶和气体实验(SAGE)与Umkehr [64]和Umkehr [92]臭氧剖面和时间序列的比对:1979-1991

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Analyzing coincident observations of ozone profiles at 15 Umkehr stations with Stratospheric Aerosol and Gas Experiment (SAGE) I and SAGE II measurements within 1000 km and 12 hours in low-aerosol conditions between 1979 and 1991, we find improved agreement between Umkehr and SAGE retrievals using the new (1992) Umkehr algorithm compared to the previous(1964) algorithm, but some significant differences remain. The column ozone amounts in layers 4 through 10 for both old Umkehr[64] (after adjustment for the scale change from the International Ozone Commission/World Meteorological Organization 1968 scale to the Bass and Parts [1985] scale) and new Umkehr[92] retrievals are approximately 5-6% lower than SAGE column amounts. The structure of the aerosol-corrected Umkehr[92] profiles compares much more favorably to SAGE than did the Umkehr[64] profiles in layers 4 to 7 (20-35 km), with considerable consistency in the vertical structure of differences across most sites. The layer-ozone differences, however, increase from zero in layer 4 to -15% (Umkehr[92] low) in layer 8. Belsk and Sapporo are the only 2 sites of the 15 analyzed here that exhibit somewhat dissimilar vertical structure in their differences versus SAGE. The Umkehr[92] a priori climatology contains less ozone in the lower layers (2-5) than does SAGE and somewhat more in the upper layers (7-9). However, these differences in a priori climatology do not significantly affect the broad altitude structure in the SAGE-Umkehr layer-mean ozone differences. On average, the Umkehr[92] profiles possess a correlation between 0.3 and 0.5 (higher at some stations) with the SAGE-measured ozone in individual layers 4 to 8. The time series of the Umkehr[92] and SAGE measurements typically exhibit similar trends except for discontinuous changes noted at Mauna Loa and Kagoshima. [References: 32]
机译:在1979年至1991年之间的低气溶胶条件下,利用平流层气溶胶和气体实验(SAGE)I和SAGE II在1000 km和12小时内对15个Umkehr站的臭氧分布进行了同时观测,我们发现Umkehr和SAGE取回之间的一致性提高新的(1992)Umkehr算法与以前的(1964)算法相比,但仍存在一些显着差异。对于旧的Umkehr [64](调整了从国际臭氧委员会/世界气象组织1968的标度到Bass and Parts [1985]的标度的调整之后)和新的Umkehr [92]的第4至10层中的臭氧含量。检索数比SAGE列数低约5-6%。气溶胶校正后的Umkehr [92]剖面的结构比SAGE在第4到第7层(20-35 km)中的Umkehr [64]剖面要好得多,并且在大多数地点的垂直结构差异上具有相当的一致性。但是,臭氧层的差异从第4层的零增加到第8层的-15%(Umkehr [92]低)。在这里分析的15个中,只有Belsk和Sapporo的两个位置在垂直方向上有一些不同差异与SAGE。与先验气候相比,Umkehr [92]先验气候所包含的臭氧含量较低,而SAGE所包含的臭氧含量较低,而上层气候(7-9)所含臭氧含量则更高。但是,先验气候的这些差异不会显着影响SAGE-Umkehr层的平均海拔高度差异(即平均臭氧差异)。平均而言,Umkehr [92]剖面与第4到第8层中SAGE测得的臭氧之间的相关性在0.3和0.5之间(某些站点更高)。Umkehr[92]和SAGE测量的时间序列通常表现出相似的关系趋势,除了在冒纳罗亚河和鹿儿岛注意到的不连续变化。 [参考:32]

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