大气臭氧探空仪:技术指标及对比分析

Atmospheric Ozonesonde: Technical Specifications and Comparisons

  • 摘要: 臭氧探空施放过程中可以直接测量大气臭氧,被广泛用于获取地面至上平流层区域内的臭氧垂直廓线。迄今为止,应用较为广泛的臭氧探空仪有ECC、BM和KC三种。其中,ECC为含有正、负两个反应池的双池型臭氧探空仪,BM和KC均为含有一个反应池的单池型臭氧探空仪。国内利用自主研发的单池型GPSO3臭氧探空仪进行了超过20年的观测。相比之下,ECC双池型臭氧探空仪具有更加明显的技术优势,使其在国际上应用最为广泛,一些原来使用单池型臭氧探空仪的观测站点也先后转向使用ECC臭氧探空仪。为了获取更准确的观测数据,尽快发展具有国内自主知识产权的双池型臭氧探空仪势在必行。本文回顾了近些年来国内外臭氧探空技术的研制进展,介绍了不同类型臭氧探空仪的工作原理和技术细节,并重点探讨了双池型臭氧探空仪的探测性能,包括测量精度、准确度和误差来源等。本研究在系统调研国外先进臭氧探空的技术特点和测量性能的基础上,清晰认知其技术现状和发展趋势,最终旨在为顺利完成国内双池型臭氧探空仪的研制工作提供理论支持、细节参考和技术指导。

     

    Abstract: The ozonesondes are widely deployed to obtain the ozone vertical structures ranging from the surface to the upper stratosphere due to their direct detections during the launches. Up to now, three major types of ozonesondes, ECC, BM, and KC, have been widely used. The ECC ozonesonde is composed of two half cells, while a single-cell technique is used for both the BM and KC ozonesondes. It has been over 20 years since the development of Chinese GPSO3 ozonesonde consisting of a single cell. However, the ECC ozonesonde formed by two half cells exhibits more technical advantages than the single cell ozonesonde, which is most widely used as well as in place of BM and KC ozonesondes at many stations. To collect more accurate measurement data, it is imperative to develop our own double cells ozondesonde as soon as possible in China. Fortunately, the Chinese researchers, including the authors, are endeavoring to achieve is scientific goal. The paper summarizes the recently developed progress of the ozonesonde produced around the world. The operational principle and technical details of different ozondesondes are also discussed. We focus on recognizing the detecting performance of the two half cells ozonesonde, such as the precision, accuracy, and error sources, and so on. By clearly acquiring the technical characters and detecting property as well as acknowledging the current status and developing trends of ozonesonde abroad, the primary objective of this study is to provide theoretical support, detail reference, and technical guidance for the successful development of our own ozonesonde in China.

     

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