CHEMISTRY OF THE 1991-1992 STRATOSPHERIC WINTER - 3-DIMENSIONAL MODEL SIMULATIONS
CHEMISTRY OF THE 1991-1992 STRATOSPHERIC WINTER - 3-DIMENSIONAL MODEL SIMULATIONS
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DOI：
10.1029/93jd03476
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发表时间：
1994-04-20
影响因子：
4.4
通讯作者：
SIMON, P
中科院分区：
文献类型：
--
作者：
LEFEVRE, F;BRASSEUR, GP;SIMON, P
本文用平流层三维化学输运模式模拟了1991-1992年北极冬季平流层痕量组分的演变。研究表明，极地平流层云的非均匀反应导致1月初极地涡旋内大气氯几乎完全活化，这与ER-2飞机的观测结果非常一致（Toohey等人，1993年）和高层大气研究卫星上的微波临边探测器（沃茨等人，1993年）。皮纳图博火山喷发产生的硫酸盐气溶胶也使中高纬度地区的一氧化氯浓度显著增加。在模拟结束时，在涡旋中发现的臭氧净化学破坏（在50百帕和25 DU时为25%）虽然很大，但受到可用阳光和平流层云层出现的时间短的限制。
A three-dimensional chemistry-transport model of the stratosphere is used to simulate the evolution of trace constituents during the 1991-1992 Arctic winter. It is shown that heterogeneous reactions on polar stratospheric clouds led in early January to almost complete activation of atmospheric chlorine inside the polar vortex, in remarkable coincidence with observations by the ER-2 aircraft (Toohey et al., 1993) and the microwave limb sounder on the Upper Atmosphere Research Satellite ( Waters et al., 1993). Sulfate aerosols resulting from the eruption of Mount Pinatubo also produced a significant increase in chlorine monoxide (ClO) concentrations at middle and high latitudes. The net chemical destruction of ozone found in the vortex at the end of the simulation (25% at 50 hPa and 25 DU), although substantial, was limited by available sunlight and the short period during which stratospheric clouds occurred.