| 大尺度山地上空的臭氧低值及地面加热 |
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| 引用本文： | 邹 捍,郜永祺,周立波.大尺度山地上空的臭氧低值及地面加热[J].气候与环境研究,1998,3(3):209-217. |
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| 作者姓名： | 邹 捍 郜永祺 周立波 |
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| 作者单位： | 中国科学院大气物理研究所 |
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| 摘 要： | 首次利用Ｎｉｍｂｕｓ－７卫星上搭载的臭氧观测光谱仪（ＴＯＭＳ）资料，分析研究了大尺度山地（青藏高原、洛基山脉和安第斯山脉）上空臭氧总量的分布和季节变化规律，指出了大尺度山地对大气臭氧的减少作用。从全球大气臭氧总量分布和纬向偏差分布可以看出：在上述３个大尺度山地上空均存在着明显的臭氧低值扰动，该扰动区夏季强于冬季。在这３个区域中，青藏高原上空的臭氧低值扰动为最强。分析同时指出：上述大尺度山地上空臭氧季节变化的极小值在秋季，极大值在春季。但上述地区臭氧总量与同纬度其它地区臭氧总量的偏差在春季或初夏达到极小值。为分析这种大尺度山地对臭氧减少作用的原因，本文分析了青藏高原地面热源与臭氧总量的关系，指出：大尺度山地表面对大气的加热与该地区臭氧减少之间存在着良好的反相关；在地面对大气的感热加热、潜热加热和有效长波辐射加热中，以感热加热与臭氧减少的关系为最好。
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| 关 键 词： | 臭氧总量 大尺度山地 地面加热 |
Ozone Low and Surface Heating over Large Scale Topography |
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| Zou Han,Gao Yongqi and Zhou Libo.Ozone Low and Surface Heating over Large Scale Topography[J].Climatic and Environmental Research,1998,3(3):209-217. |
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| Authors: | Zou Han Gao Yongqi and Zhou Libo |
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| Abstract: | The variation and distribution of ozone are analyzed using TOMS data on board Nimbus-7 Contribution of large-scale topography (i e the Tibet, the Rocky and the Andes) to ozone deficit is noticed in this study The global distribution and zonal deviation of total ozone show obvious low ozone perturbation over the three major mountainous regions with the strongest one over the Tibet The seasonal variation of area averaged ozone demonstrates a spring maximum and autumn minimum ozone over the three regions The area weighted mean of zonal deviation reveals maximum local ozone deficits in spring and early summer over the mountainous regions After analysis on the relation between the ozone deficit and surface heating to the atmosphere over the Tibet, the heating is recognized as the main cause to the low ozone perturbation and local deficit In addition, the ground-atmosphere sensible heat is the dominating component in causing the ozone deficit over large-scale topography |
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| Keywords: | total ozone large-scale topography surface heating |
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