物理学报
物理學報
물이학보
2013年
5期
201-211
,共11页
王婷%王普才%余环%张兴赢%周斌%司福祺%王珊珊%白文广%周海金%赵恒
王婷%王普纔%餘環%張興贏%週斌%司福祺%王珊珊%白文廣%週海金%趙恆
왕정%왕보재%여배%장흥영%주빈%사복기%왕산산%백문엄%주해금%조항
MAX-DOAS%NO2%斜柱浓度%比对试验
MAX-DOAS%NO2%斜柱濃度%比對試驗
MAX-DOAS%NO2%사주농도%비대시험
MAX-DOAS%NO2%differential slant column density%intercomparison
为了满足卫星遥感产品地基验证平台中不同仪器观测数据一致性的要求,2011年9月,将3台不同设计方案、不同操作方式的多轴差分吸收光谱仪(MAX-DOAS)集中在中国科学院大气物理研究所香河大气探测综合试验站,进行了近20天的同步观测测试.并对所有仪器统一观测方位角,分别采用相同的紫外、可见光波段的特征吸收带及吸收截面进行NO2柱浓度的反演试验.系统的比对分析表明:3台MAX-DOAS的反演误差大都保持在6%以内,说明仪器性能良好,比较稳定;紫外波段的反演结果略小于可见光波段,尤其在阴天,这是由于两波段对分子及气溶胶散射的敏感性不同造成的;以可见光波段的反演结果为标准,对紫外波段的反演结果进行系统订正,订正后的各组数据一致性非常好,满足卫星大气成分NO2柱浓度遥感产品不同地基验证站点数据稳定、一致的要求.
為瞭滿足衛星遙感產品地基驗證平檯中不同儀器觀測數據一緻性的要求,2011年9月,將3檯不同設計方案、不同操作方式的多軸差分吸收光譜儀(MAX-DOAS)集中在中國科學院大氣物理研究所香河大氣探測綜閤試驗站,進行瞭近20天的同步觀測測試.併對所有儀器統一觀測方位角,分彆採用相同的紫外、可見光波段的特徵吸收帶及吸收截麵進行NO2柱濃度的反縯試驗.繫統的比對分析錶明:3檯MAX-DOAS的反縯誤差大都保持在6%以內,說明儀器性能良好,比較穩定;紫外波段的反縯結果略小于可見光波段,尤其在陰天,這是由于兩波段對分子及氣溶膠散射的敏感性不同造成的;以可見光波段的反縯結果為標準,對紫外波段的反縯結果進行繫統訂正,訂正後的各組數據一緻性非常好,滿足衛星大氣成分NO2柱濃度遙感產品不同地基驗證站點數據穩定、一緻的要求.
위료만족위성요감산품지기험증평태중불동의기관측수거일치성적요구,2011년9월,장3태불동설계방안、불동조작방식적다축차분흡수광보의(MAX-DOAS)집중재중국과학원대기물리연구소향하대기탐측종합시험참,진행료근20천적동보관측측시.병대소유의기통일관측방위각,분별채용상동적자외、가견광파단적특정흡수대급흡수절면진행NO2주농도적반연시험.계통적비대분석표명:3태MAX-DOAS적반연오차대도보지재6%이내,설명의기성능량호,비교은정;자외파단적반연결과략소우가견광파단,우기재음천,저시유우량파단대분자급기용효산사적민감성불동조성적;이가견광파단적반연결과위표준,대자외파단적반연결과진행계통정정,정정후적각조수거일치성비상호,만족위성대기성분NO2주농도요감산품불동지기험증참점수거은정、일치적요구.
In September 2011, we used 3 ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) instruments of different designs and operation protocols to measure tropospheric NO2 for about 20 days, at the Station of Atmospheric Comprehen-sive Observatory, Institute of Atmospheric Physics, Chinese Academy of Sciences (Xianghe 117.0?N, 39.77?E). All instruments are oriented to an azimuth angle of 270?(north), in a common wavelength range and with a set of cross sections for the inversion of NO2 slant column in visible and UV wavelength range respectively. Intercomparison of NO2 slant columns among three MAX-DOAS is introduced. The results obtained from the different instruments are in good accordance with each other, and the correlation coefficients are all higher than 0.95, but systematical errors exist. Daily average errors of three MAX-DOAS instruments are almost below 6%, showing that the instruments work steadily and the data are cogent. The UV results are smaller than those in the visible range, espe-cially on the overcast days, related to the wavelength dependence of Rayleigh and Mie scattering. After the correction of systematical errors, there is better consistency among different results, which indicates that the three MAX-DOAS instruments have a capability to validate the atmospheric component products of satellite.
