• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Remote Sensing of Clouds and the Atmosphere XII; Proceedings of SPIE-The International Society for Optical Engineering; vol.6745 >Ozone depletion in the Austral spring from UV microsatellite instrument
【24h】

Ozone depletion in the Austral spring from UV microsatellite instrument

机译：紫外线微卫星仪器对南极春季臭氧的消耗

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Ozone Mapping Detector (OMAD) on board FASat-Bravo micro-satellite observed backscattered UV radiation to retrieve atmospheric ozone with low-spatial-resolution (150 × 150 km). This relatively coarse resolution with continuous global coverage allowed the observation of the seasonal ozone layer depletion over Antarctica in the austral spring in 1998. Previous analysis of this instrument have shown agreement in the radiances observed by OMAD and NASA's Total Ozone Mapping Spectrometer (TOMS-EP); these have even indicated the detection of an apparently higher ozone content anomaly due to a volcanic cloud of Nyamuragira volcano during its eruption in October 1998 [1]. A new improved version of the simplified algorithm used in OMAD data has been applied to the austral region to determine the total Ozone content. The new data processing allowed the observation of the development of the ozone depletion in 1998 from September to early December when ozone depletion normally occurs. The OMAD results showed good agreement overall when compared with those obtained from TOMS-EP V8 despite their intrinsic instrumental differences. Results indicate Ozone contents lower than 150 Dobson Units (DU) in the Antarctic region with absolute errors less than 10 % in the vertical column content and high cross-correlations when compared with TOMS-EP. The value of this low-cost earth observation approach is discussed on the potential of such missions to provide additional atmospheric observations of large-scale phenomena.
机译：FASat-Bravo微卫星上的臭氧测绘仪（OMAD）观测到了反向散射的紫外线辐射，以低空间分辨率（150×150 km）回收了大气中的臭氧。这种相对粗略的分辨率和连续的全球覆盖范围使得可以观察到1998年春季南极上空的季节性臭氧层消耗。以前对该仪器的分析表明，OMAD和NASA的总臭氧图谱仪（TOMS-EP）观测到的辐射度一致）;这些甚至表明由于Nyamuragira火山在1998年10月喷发期间的火山云而发现了明显更高的臭氧含量异常[1]。在OMAD数据中使用的简化算法的新改进版本已应用于南极地区，以确定总臭氧含量。通过新的数据处理，可以观察到1998年9月至12月初正常发生臭氧消耗时臭氧消耗的情况。与从TOMS-EP V8获得的结果相比，OMAD结果总体上显示出良好的一致性，尽管它们之间存在固有的仪器差异。结果表明，与TOMS-EP相比，南极地区的臭氧含量低于150 Dobson Units（DU），垂直柱含量的绝对误差小于10％，交叉相关性高。讨论了这种低成本对地观测方法的价值，探讨了这种飞行任务为大范围现象提供额外大气观测的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号