DOI: 10.1002/jgrd.50371
论文题名: Characteristics of global precipitable water in ENSO events revealed by COSMIC measurements
作者: Teng W.-H. ; Huang C.-Y. ; Ho S.-P. ; Kuo Y.-H. ; Zhou X.-J.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 15 起始页码: 8411
结束页码: 8425
语种: 英语
英文关键词: COSMIC
; ENSO
; precipitable water
Scopus关键词: Atmospheric pressure
; Cosmology
; Global positioning system
; Ionosphere
; Microwave sensors
; Advanced microwave scanning radiometer
; COSMIC
; Earth observation systems
; ENSO
; Latitudinal variation
; Precipitable water
; Root mean squares
; Special sensor microwave/Imager
; Climatology
; AMSR-E
; COSMIC
; El Nino-Southern Oscillation
; FORMOSAT-2
; GPS
; ionosphere
; measurement method
; precipitation (climatology)
; satellite imagery
; Australia
英文摘要: Precipitable water (PW) retrievals from FORMOSAT-3/Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) Global Positioning System (GPS) radio occultation (RO) measurements were analyzed and compared with those derived from Special Sensor Microwave/Imager (SSM/I) and Advanced Microwave Scanning Radiometer for Earth Observation System (AMSR-E) during the El Niño-Southern Oscillation (ENSO) events from 2007 to 2011. For the three ENSO events in 2007-2011, monthly mean binned COSMIC PW results are in a very high correlation (up to 0.98) with those of SSM/I and AMSR-E over the ocean, generally with root-mean-square differences less than 4 mm. PW retrievals from the three satellites are also of similar latitudinal variations. However, the PW is slightly underestimated by GPS RO, in particular, in the tropical regions. This underestimate may be caused partially by the fact that not all RO measurements can reach the surface. Inter-satellite PW anomaly comparisons for the winter months in the ENSO events, with respect to those during the neutral (non-ENSO) months, show consistent ENSO signals with major PW anomaly near the central Pacific in the warm event and near the Indonesian region and east of Australia in the two cold events. However, the 2007/2008 La Niña is somewhat less correlated for COSMIC with AMSR-E and SSM/I. For the stronger 2010/2011 La Niña, their PW anomalies are in higher correlations of about 0.8. Key Points COSMIC monthly mean PW is in a very high correlation with SSM/I and AMSR-E PW. COSMIC, SSM/I and AMS-E PW anomaly comparisons show consistent ENSO signals. ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63489
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
There are no files associated with this item.
作者单位: Department of Atmospheric Sciences, National Central University, Jhong-Li, Taiwan; GPS Science and Application Research Center, National Central University, Jhong-Li, Taiwan; University Corporation for Atmospheric Research, Boulder CO, United States
Recommended Citation:
Teng W.-H.,Huang C.-Y.,Ho S.-P.,et al. Characteristics of global precipitable water in ENSO events revealed by COSMIC measurements[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(15)