Characteristic and Temperature Stratification of Wire Icing in Jiangxi
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Abstract:
Using the observation data of wires icing in 16 meteorological stations and surrounding radiosonde stations from 1970 to 2010, we divide Jiangxi Province into north, middle and south zones, and use the composite method to analyze the characteristics of wire icing and temperature stratification in Jiangxi Province. The results indicate: (1) Jiangxi’s wire icing days are reducing year by year, and maintain a low level after the 1990s. (2) Rainrime wire icing is common in Jiangxi Province, more frequent in the northern and central Jiangxi. (3) For the northern Jiangxi, fog rime is more liable to happen after rain rime, causing continuous wire icing. (4) Temperature stratification of rainrime wire icing accords with the ThreeTiers model〖WTBX〗 〖WTBZ〗in the northern and central Jiangxi. The average meltinglayer temperature is 15 ℃, and the strong inversion layer is between 800 and 900 hPa. The southern Jiangxi is similar to the OneTier model, with the whole level of temperature below 0 ℃.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.