DOI: 10.1002/grl.50891
论文题名: InSAR observation and numerical modeling of the water vapor signal during a heavy rain: A case study of the 2008 Seino event, central Japan
作者: Kinoshita Y. ; Shimada M. ; Furuya M.
刊名: Geophysical Research Letters
ISSN: 0094-8603
EISSN: 1944-8334
出版年: 2013
卷: 40, 期: 17 起始页码: 4740
结束页码: 4744
语种: 英语
英文关键词: heavy rain
; InSAR
; numerical weather model
Scopus关键词: Above ground level
; Heavy rains
; InSAR
; Interferometric synthetic aperture radars
; Numerical weather model
; Ray-tracing method
; Water vapor distribution
; Weather research and forecasting models
; Geodetic satellites
; Natural convection
; Numerical models
; Rain
; Ray tracing
; Three dimensional
; Weather forecasting
; Water vapor
; convection
; numerical model
; precipitation intensity
; simulation
; synthetic aperture radar
; water vapor
; weather
; Honduras
; Japan
; Yoro
英文摘要: This study reports the first detection and analysis of a localized water vapor distribution obtained using interferometric synthetic aperture radar (InSAR) during the Seino heavy rain episode. The InSAR data retrieved during the ALOS/PALSAR emergency observations for the event revealed a radar line-of-sight (LOS) change of up to 130 mm within 10 km. Based on the signal, we estimated the three-dimensional water vapor distribution using the ray-tracing method, which indicated a column of nearly saturated water vapor within a 10 km 2 area reaching from the surface to 9000 m above ground level. To geophysically confirm this signal, Weather Research and Forecasting (WRF) model simulations were performed, revealing a deep convection that was initiated by orographic lift caused by the Yoro Mountains. Another simulation that did not include the Yoro Mountains did not produce a deep convection. The WRF simulation also suggested that the effect of hydrometeors can account for approximately 20% of the maximum LOS change but this effect is even more localized than the effect of water vapor. Key Points A detailed water vapor distribution during heavy rain were detected by InSAR 3D water vapor distribution were estimated with the ray-tracing method High-resolution numerical weather simulations were performed ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883544709&doi=10.1002%2fgrl.50891&partnerID=40&md5=346bc241493fbfc21ac6805a51233cea
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5867
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Department of Natural History Sciences, Hokkaido University, N10 W8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
Recommended Citation:
Kinoshita Y.,Shimada M.,Furuya M.. InSAR observation and numerical modeling of the water vapor signal during a heavy rain: A case study of the 2008 Seino event, central Japan[J]. Geophysical Research Letters,2013-01-01,40(17).