V7版和V8版TOMS大气臭氧资料比较分析

Comparison between Two Different Versions of TOMS Total Ozone Column Datasets

目前使用的TOMS(Total Ozone Mapping Spectrometer)大气臭氧资料大多为V7版本和V8版本,文章利用1978年11月至2001年12月的版本7和版本8算法反演得到的TOMS臭氧资料,比较分析了两个版本资料之间差异的时空分布特性。结果表明,TOMS公布的V8版本资料与V7版本资料虽然有较好的相关性,但是在数值上存在明显的时空分布差异,尤其在极区更为明显。

The version 7 and version 8 of TOMS （Total Ozone Mapping Spectrometer） ozone data sets are most widely used at present. The TOMS data of version 7 and version 8 are compared and the features and distribution of the differences between the data of version 7 and version 8 are discussed. By means of the two version ozone data of TOMS from November 1978 to December 2001, the spatial-temporal variation of the differences between two version ozone data are analyzed in detail. Results show that though quite good relationship exists between two versions data sets, there are significant spatial-temporal differences in magnitude, especially over two polar areas.