Comparison and evaluation of retrieved ozone profiles from solar backscatter ultraviolet sounder on FY-3A satellite

HUANG Fu-xiang; LIU Nian-qing; ZHANG Peng; ZHAO Ming-xian; DONG Chao-hua

doi:10.3788/OPE.20101807.1568

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Comparison and evaluation of retrieved ozone profiles from solar backscatter ultraviolet sounder on FY-3A satellite

Article | 更新时间：2020-08-12

- Comparison and evaluation of retrieved ozone profiles from solar backscatter ultraviolet sounder on FY-3A satellite
- Optics and Precision Engineering Vol. 18, Issue 7, Pages: 1568-1576(2010)
- 作者机构：
  
  中国气象局中国遥感卫星辐射测量和定标重点开放实验室国家卫星气象中心,北京100081
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20101807.1568
  CLC：
- Received：25 June 2009，
  
  Revised：08 September 2009，
  
  Published Online：30 July 2010，
  
  Published：20 July 2010
- 稿件说明：
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黄富祥, 刘年庆, 张鹏, 赵明现, 董超华. 风云三号A星紫外臭氧垂直探测仪反演产品的比较和评估[J]. 光学精密工程, 2010,18(7): 1568-1576

HUANG Fu-xiang, LIU Nian-qing, ZHANG Peng, ZHAO Ming-xian, DONG Chao-hua. Comparison and evaluation of retrieved ozone profiles from solar backscatter ultraviolet sounder on FY-3A satellite[J]. 光学精密工程, 2010,18(7): 1568-1576
黄富祥, 刘年庆, 张鹏, 赵明现, 董超华. 风云三号A星紫外臭氧垂直探测仪反演产品的比较和评估[J]. 光学精密工程, 2010,18(7): 1568-1576 DOI： 10.3788/OPE.20101807.1568.

HUANG Fu-xiang, LIU Nian-qing, ZHANG Peng, ZHAO Ming-xian, DONG Chao-hua. Comparison and evaluation of retrieved ozone profiles from solar backscatter ultraviolet sounder on FY-3A satellite[J]. 光学精密工程, 2010,18(7): 1568-1576 DOI： 10.3788/OPE.20101807.1568.

摘要

为了考察和评估我国首次自主研制并由新一代极地轨道气象卫星风云三号携带的紫外臭氧垂直探测仪SBUS的观测数据和反演产品的精度和稳定性

利用SBUS在轨观测数据开展了臭氧垂直氧廓线反演试验

并将反演产品与NOAA卫星同类仪器SBUV/2产品数据进行了系统比较。首先使用自主研发的风云三号紫外臭氧垂直廓线反演算法FY_V1.0开展臭氧廓线反演试验

输入数据为SBUS 2008年7月17日~8月30日在轨观测数据。然后

采用3种方法

即匹配像元数据直接比较

赤道地区平均反演廓线比较以及反演廓线与先验廓线残差比较

将反演结果与SBUV/2产品进行了比较。最后

基于各种比较结果进行分析和评估。结果显示

与NOAA-16和17卫星SBUV/2反演产品相比

SBUS反演产品多数高度层相对偏差百分率在10%之间

部分层相对偏差达到15%;在20N~20S比较平均反演臭氧垂直廓线

最大差异为5.4 DU

最小差异为0

多数在0.3 DU之间;比较反演廓线与先验廓线的残差表明

较大残差发生的高度以及残差正负性等方面存在明显差异。结论认为

在未对数据做任何订正的条件下

SBUS反演臭氧垂直廓线产品在多数高度层精度尚可

但是

与SBUV/2产品相比

SBUS获取的臭氧垂直廓线存在较大的系统性偏差

需要通过与SBUV/2的交叉定标进行订正。

Abstract

In order to evaluate the precision and stability of ozone profiles from the Solar Backscatter Ultraviolet Sounder (SBUS) on FY-3A satellite

the retrieval experiments were carried out by using SBUS measurements and the ozone profiles from SBUS and those from SBUV/2 on NOAA satellites were compared. Firstly

on the basis of FY-3 ozone profile retrieval algorithm FY_V1.0

the ozone profile retrievals were undertaken by using the SBUS measurements during 17 July to 30 August 2008 as input data. Then

three kinds of methods were proposed to compare the retrieval data of SBUS with those of SBUV/2. These methods are the direct comparison of SBUS ozone profiles with those matching profiles of SBUV/2

comparison of SBUS mean ozone profiles with those of SBUV/2 in tropics and the comparison of residuals of retrieved and apriori ozone profiles of SBUS and SBUV/2. Finally

the comparison and evaluation results were analyzed. Comparison results indicate that the relative bias percentage of SBUS ozone profiles relative to those of SBUV/2 at matching pixels are within 10% at most layers

but reaches 15% at fewer layers; the differences of SBUS mean ozone profile with that of SBUV/2 in tropics are smaller than 0.3 DU at most layers. The biggest difference is 5.4 DU and the smallest is 0;the comparison of the residuals of retrieved and apriori ozone profiles shows notable difference between SBUS and SBUV/2 in the height of residual occured and the negatives and positives of the residuals.It is concluded that the precisions of SBUS ozone profiles are pretty good at most layers without doing any correction. But

there exists some remarkable differences between SBUS ozone profiles and those of SBUV/2. To improve the precisions of SBUS ozone profiles

it is necessary to put efforts on measurement correction based on inter-calibration with SBUV/2.

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Keywords

references

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School of Earth Sciences and Resources， China University of Geosciences

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