气象学报
氣象學報
기상학보
ACTA METEOROLOGICA SINICA
2014年
2期
191-206
,共16页
刘鸿波%何明洋%王斌%张庆红
劉鴻波%何明洋%王斌%張慶紅
류홍파%하명양%왕빈%장경홍
低空急流%结构和演变机制%降水%交叉领域
低空急流%結構和縯變機製%降水%交扠領域
저공급류%결구화연변궤제%강수%교차영역
Low-level jet%Structural and evolutionary mechanisms%Precipitation%Interdisciplinary research
低空急流与强降水事件、空气污染、风能利用、航空安全、沙尘暴、森林火灾及其他诸多天气、气候现象存在着密切的联系,因此自发现之日起便受到人们的广泛关注。在过去的半个多世纪中,中外气象学家围绕着低空急流事件开展了大量的研究并取得了丰硕的研究成果。对这些成果进行了综合回顾,重点对低空急流的分类和定义、分布状况及结构特征,低空急流形成演变机制,低空急流与降水及其他领域的关系等三个方面的研究工作进行了总结。最后通过对比分析中外针对低空急流事件的研究历史和现状,指出了中国现有研究工作中所存在的诸如低空急流选取标准宽松、观测数据缺乏且质量控制不完善、低空急流自身特征与形成演变机制研究数量和深度有限、交叉领域研究工作匮乏等方面的问题,并对未来的研究方向进行了展望。
低空急流與彊降水事件、空氣汙染、風能利用、航空安全、沙塵暴、森林火災及其他諸多天氣、氣候現象存在著密切的聯繫,因此自髮現之日起便受到人們的廣汎關註。在過去的半箇多世紀中,中外氣象學傢圍繞著低空急流事件開展瞭大量的研究併取得瞭豐碩的研究成果。對這些成果進行瞭綜閤迴顧,重點對低空急流的分類和定義、分佈狀況及結構特徵,低空急流形成縯變機製,低空急流與降水及其他領域的關繫等三箇方麵的研究工作進行瞭總結。最後通過對比分析中外針對低空急流事件的研究歷史和現狀,指齣瞭中國現有研究工作中所存在的諸如低空急流選取標準寬鬆、觀測數據缺乏且質量控製不完善、低空急流自身特徵與形成縯變機製研究數量和深度有限、交扠領域研究工作匱乏等方麵的問題,併對未來的研究方嚮進行瞭展望。
저공급류여강강수사건、공기오염、풍능이용、항공안전、사진폭、삼림화재급기타제다천기、기후현상존재착밀절적련계,인차자발현지일기편수도인문적엄범관주。재과거적반개다세기중,중외기상학가위요착저공급류사건개전료대량적연구병취득료봉석적연구성과。대저사성과진행료종합회고,중점대저공급류적분류화정의、분포상황급결구특정,저공급류형성연변궤제,저공급류여강수급기타영역적관계등삼개방면적연구공작진행료총결。최후통과대비분석중외침대저공급류사건적연구역사화현상,지출료중국현유연구공작중소존재적제여저공급류선취표준관송、관측수거결핍차질량공제불완선、저공급류자신특정여형성연변궤제연구수량화심도유한、교차영역연구공작궤핍등방면적문제,병대미래적연구방향진행료전망。
The low-level jet (LLJ)is closely concerned with severe rainfall events,air pollution,wind energy utilization,avia-tion safety,sandstorms,forest fire,and other weather and climate phenomena.Therefore,it has attracted considerable atten-tion since its discovery.Scientists have carried out many studies on LLJs and made significant achievements during the past five or six decades.This article summarizes and assesses the current knowledge on this subject,and focuses in particular on three aspects:(1)LLJ definition,classification,distribution,and structure;(2)LLJ formation and evolutionary mechanisms;and (3)relationships between LLJ and precipitation,as well as other interdisciplinary fields.After comparing the status of LLJ re-searches in China with those abroad,we then discuss the shortcomings of LLJ research in China,which might cover the coarse definitions of the LLJ,lack of observations and inadequate quality control,few thorough explorations of LLJ characteristics and formation mechanisms,and limited studies in the light of interdisciplinary fields.The future prospects for several LLJ research avenues are also speculated.