CAJ | 학술논문

选取春季发生在新疆石河子地区沙漠边缘的3次冰雹天气过程,应用常规观测资料并结合雷达回波资料,从天气形势、物理量场和雷达回波演变特征等几方面进行了综合分析.结果表明:3次降雹过程都发生在典型的高空槽型的冰雹环流背景形势下,较好的对流不稳定条件、水汽条件和较强的垂直风切变促使冰雹等强对流天气过程发生发展.多普勒雷达能很好地监测中尺度天气系统的发展演变过程,回波强度和回波顶高度的变化、速度对和逆风区的出现、垂直累积液态含水量(VIL)增加以及风暴跟踪信息(STI)预警等都对冰雹天气的出现具有指示意义,对今后的防雹减灾工作有较好的应用价值.
선취춘계발생재신강석하자지구사막변연적3차빙박천기과정,응용상규관측자료병결합뢰체회파자료,종천기형세、물리량장화뢰체회파연변특정등궤방면진행료종합분석.결과표명:3차강박과정도발생재전형적고공조형적빙박배류배경형세하,교호적대류불은정조건、수기조건화교강적수직풍절변촉사빙박등강대류천기과정발생발전.다보륵뢰체능흔호지감측중척도천기계통적발전연변과정,회파강도화회파정고도적변화、속도대화역풍구적출현、수직루적액태함수량(VIL)증가이급풍폭근종신식(STI)예경등도대빙박천기적출현구유지시의의,대금후적방박감재공작유교호적응용개치.
The three selected hailstone episodes occurred in spring at the edge of desert in shihezi area in Xinjiang were analyzed comprehensively using the conventional observation data and radar echo data with respects to weather situation, physical vector fields and evolution features of radar echoes. The results showed that the three hailing processes occurred under the typical upper air trough hail circulation. Favorable hydrometer conditions, convective instability conditions and strong vertical wind shear promoted the formation and development of strong convection synoptic processes. The research showed that Doppler radar can properly monitor and measure the development and evolution processes of the mesoscale weather systems; the variation of echo intensity, echo top height, wind speed and adverse wind region, VIL (Vertical Integration of Liquid water)and STI (storm track information)have preferable application value for forecasting hail and reducing losses from the disaster in the future.