globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50885
论文题名:
Global variation of COSMIC precipitable water over land: Comparisons with ground-based GPS measurements and NCEP reanalyses
作者: Huang C.-Y.; Teng W.-H.; Ho S.-P.; Kuo Y.-H.
刊名: Geophysical Research Letters
ISSN: 0094-8483
EISSN: 1944-8214
出版年: 2013
卷: 40, 期:19
起始页码: 5327
结束页码: 5331
语种: 英语
英文关键词: COSMIC ; PW
Scopus关键词: Constellation observing system for meteorology , ionosphere , and climates ; COSMIC ; Global correlation ; National centers for environmental predictions ; Precipitable water ; PW ; Radio occultations ; Standard deviation ; Ionosphere ; Cosmology ; comparative study ; correlation ; data acquisition ; data set ; global change ; GPS ; precipitation (climatology) ; sampling ; statistical analysis ; Amazon Basin ; Australia ; Central Africa ; China ; Qinghai-Xizang Plateau
英文摘要: Radio occultation (RO) observations of precipitable water (PW) from the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) are compared with ground-based Global Positioning System (GPS) PW for 6 years (2007-2012). From comparisons of more than 120,000 collocated samples, differences in PW between RO and GPS exhibit a standard deviation of less than 3 mm with a global correlation of 0.96 to 0.97. The monthly mean RO PW is also compared to the National Centers for Environmental Prediction (NCEP) reanalyses. PWs over land for RO, GPS, and reanalyses are highly correlated in each hemisphere. We also used the RO data to explore the variation of the monthly mean PW in four regions (Tibetan Plateau, central Australia, Amazon Basin, and central Africa) where ground stations are few. This study highlights the characteristics of these PW climatologies, suggesting that the RO data are useful complements to global reanalyses and other data sets. Key Points Comparison between COSMIC PW and ground-based PW shows a correlation of 0.97 COSMIC RO data can improve global monitoring of PW over lands COSMIC RO data explore the evolution of monthly mean PW in four regions ©2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84884740874&doi=10.1002%2fgrl.50885&partnerID=40&md5=0923c71cd9d210a19578cd38310ac4a7
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被引频次[WOS]:27   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5747
Appears in Collections:气候减缓与适应

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作者单位: Department of Atmospheric Sciences, National Central University, Jhongli, Taiwan

Recommended Citation:
Huang C.-Y.,Teng W.-H.,Ho S.-P.,et al. Global variation of COSMIC precipitable water over land: Comparisons with ground-based GPS measurements and NCEP reanalyses[J]. Geophysical Research Letters,2013-01-01,40(19).
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