contributor author | Chang, Pao-Liang | |
contributor author | Lin, Pin-Fang | |
date accessioned | 2017-06-09T16:39:17Z | |
date available | 2017-06-09T16:39:17Z | |
date copyright | 2011/07/01 | |
date issued | 2011 | |
identifier issn | 1558-8424 | |
identifier other | ams-71644.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4213559 | |
description abstract | n this study, unusual radar anomalous propagation (AP) phenomena associated with foehn winds induced by Typhoon Krosa (2007) were documented by using observations from radar, surface stations, and soundings. The AP echoes embedded within rainband areas and exhibited inward motions toward the radar site within 2?3 h prior to the occurrences of foehn winds at the radar site, which would interfere with the interpretation of radar data and associated downstream applications. As Typhoon Krosa appeared in the vicinity of the northeastern coast of Taiwan, foehn winds with significant subsidence warming and drying generated by downslope winds were observed in southeastern Taiwan. The foehn winds continuously moved northward within confined areas from the southeastern to eastern?central parts of Taiwan. Before the foehn winds penetrated to the surface, the subsidence warming introduced a temperature inversion layer above the surface and caused the ducting of radar beams. Analyses of refractive index and ray tracing suggested that the occurrence and evolution of the AP echoes during Typhoon Krosa were closely related to the varying inversion heights induced by downslope winds. | |
publisher | American Meteorological Society | |
title | Radar Anomalous Propagation Associated with Foehn Winds Induced by Typhoon Krosa (2007) | |
type | Journal Paper | |
journal volume | 50 | |
journal issue | 7 | |
journal title | Journal of Applied Meteorology and Climatology | |
identifier doi | 10.1175/2011JAMC2619.1 | |
journal fristpage | 1527 | |
journal lastpage | 1542 | |
tree | Journal of Applied Meteorology and Climatology:;2011:;volume( 050 ):;issue: 007 | |
contenttype | Fulltext | |