globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50162
论文题名:
Intercomparison of SSU temperature data records with Lidar, GPS RO, and MLS observations
作者: Wang L.; Zou C.-Z.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:4
起始页码: 1747
结束页码: 1759
语种: 英语
英文关键词: GPS ; Lidar ; MLS ; SSU ; Stratosphere ; temperature
Scopus关键词: Global positioning system ; Observatories ; Optical radar ; Temperature ; Temperature control ; Upper atmosphere ; Brightness temperatures ; Correlation coefficient ; GPS radio occultations ; Microwave limb sounder ; MLS ; SSU ; Stratospheric temperature ; Vertical temperature profile ; Atmospherics ; brightness temperature ; data set ; GPS ; lidar ; observational method ; stratosphere ; temperature effect ; temperature profile
英文摘要: A consistent long-term stratospheric temperature observation is a crucial part for global change studies. In this study, we compare newly developed Stratospheric Sounding Unit (SSU) layer-averaged stratospheric temperatures with lidar, GPS Radio Occultation (RO), and Microwave Limb Sounder (MLS) stratospheric temperature profiles, each with unique error characteristics, spatial and temporal coverage, and observational principles. The vertical temperature profiles are converted into SSU-equivalent layer temperatures, and diurnal correction is applied to adjust the observations into an identical observational time. The comparison is carried out on pentad grids with a 2.5°latitude × 2.5°longitude resolution. Grid-by-grid comparison of SSU and MLS gives the mean differences between them from August 2004 to May 2006 of -0.041, 0.169, and -0.447 K with standard deviation of 1.180, 1.485, and 1.715 K for SSU channels 1-3, respectively. The correlation of GPS RO and SSU brightness temperature anomalies are 0.943, 0.877, and 0.699 from channels 1-3, respectively, and the correlation decreases with altitude (channels). SSU channel 3 brightness temperature anomalies are correlated with lidar observations with correlation coefficients of 0.839 at the Hohenpeissenberg Observatory in Germany and 0.725 at the Observatoire de Haute-Provence in France. Overall, the comparison results do not show that the newly developed SSU data set is significantly different from any of the three independent data sets based on known limitations and advantages of these data sets. Key Points A long-term stratospheric temperature observation is crucialwe compare SSU stratospheric temperatures with other datasetsThe SSU dataset is not significantly different from other independent datasets © 2013. American Geophysical Union. All Rights Reserved.
资助项目: NA09NES4400006 ; NESDISPO20092001589
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63913
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Cooperative Institute for Climate and Satellites, Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; NOAA/National Environmental Satellite, Data and Information Services, Center for Satellite Applications and Research, College Park, MD, United States

Recommended Citation:
Wang L.,Zou C.-Z.. Intercomparison of SSU temperature data records with Lidar, GPS RO, and MLS observations[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(4)
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