Evaluation of stratospheric radio occultation retrieval using data from CHAMP, MIPAS, GOMOS, and ECMWF analysis fields

被引：5

作者：

Gobiet, A ^{[1
]}

Kirchengast, G ^{[1
]}

Wickert, J ^{[1
]}

Retscher, C ^{[1
]}

Wang, DY ^{[1
]}

Hauchecorne, A ^{[1
]}

机构：

[1] Graz Univ, IGAM, A-8010 Graz, Austria

来源：

EARTH OBSERVATION WITH CHAMP: RESULTS FROM THREE YEARS ORBIT | 2005年

关键词：

CHAMP; MIPAS; GOMOS; ECMWF; radio occultation; retrieval; statistical optimization; validation;

D O I：

10.1007/3-540-26800-6_84

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Two radio Occultation (RO) retrieval schemes designed at IGAM to enhance the performance at high altitudes are presented, applied to CHAMP RO data. and validated against ECMWF analyses, GFZ operational retrieval, ENVSAT/MIPAS-, and ENVIAT/GOMOS-derived temperature profiles. IGAM proposes to include background information into the RO retrieval only at one point at bending angle level in order to be able to track error characteristics of the retrieved product. The results show very good agreement with GFZ retrieval and ECMWF analysis below 15 km and. depending on the background information used, either a significant warm bias or essentially no bias up to 30 km. Compared to MIPAS, the only independent data source. the IGAM/ECMWF retrieval is unbiased up to 40 km.

引用

页码：531 / 536

页数：6

共 6 条

[1]

GOBIET A, 2004, IN PRESS P OPAC 1 SE

[2] Retrieving temperature, water vapour and surface pressure information from refractive-index profiles derived by radio occultation: A simulation study [J].