| AMDAR资料的风温信息在机场终端区强对流天气分析中的应用 |
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| 引用本文： | 周元,魏鸣,宋立雪.AMDAR资料的风温信息在机场终端区强对流天气分析中的应用[J].大气科学学报,2019,42(2):303-310. |
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| 作者姓名： | 周元 魏鸣 宋立雪 |
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| 作者单位： | 南京信息工程大学气象灾害预报预警与评估协同创新中心;中国气象局资产管理事务中心 |
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| 基金项目： | 国家自然科学基金资助项目（41675029）；国家重点基础研究发展计划项目（2013CB430102） |
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| 摘 要： | 强对流天气引起风矢量和温度等气象要素突变,影响飞机正常起降和飞行。高时空分辨率的飞机气象资料中继AMDAR(Aircraft Meteorological Data Relay)是天气预报重要的资料源之一,可为机场终端区的强对流天气短临预报提供高时间密度的垂直探测信息。通过白云机场终端区的AMDAR资料,提取三维风矢和温度廓线,制作了风切变和湍流的预警分析图。以2011年4月17日一次广东省的强对流天气过程为例,将AMDAR资料结合雷达、卫星、探空等多源资料进行了分析。研究表明,在AMDAR资料的风矢-时间高度剖面上形成三维预警指示,对机场的强对流预报有指导意义;当1 km以下发生强风切变,对飞机起降威胁严重,AMDAR资料水平风的垂直分布印证了多普勒天气雷达强辐散区的回波特征;高时空分辨率的AMDAR风速和温度扰动,可揭示大气中的风切变及湍流运动。AMDAR资料为保障飞机的安全起降提供了一种实时、密集的垂直观测信息,有助于研发临近预报预警产品,弥补探空资料的不足。
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| 关 键 词： | AMDAR资料 机场 强对流 风切变 湍流 |
| 收稿时间： | 2017/7/18 0:00:00 |
| 修稿时间： | 2017/10/15 0:00:00 |
The wind and temperature information of AMDAR data applied to the analysis of severe weather nowcasting in airports |
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| ZHOU Yuan,WEI Ming and SONG Lixue.The wind and temperature information of AMDAR data applied to the analysis of severe weather nowcasting in airports[J].大气科学学报,2019,42(2):303-310. |
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| Authors: | ZHOU Yuan WEI Ming and SONG Lixue |
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| Institution: | Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing 210044, China,Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing 210044, China and China Meteorological Administration Assert Management Center, Beijing 100081, China |
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| Abstract: | Strong convection is an important weather phenomenon impacting flight safety,and frequently causes sudden changes in meteorological elements.AMDAR data have high spatial and temporal resolution,which can provide vital information for the nowcasting of severe weather in airport terminal areas.This paper extracts the three-dimensional wind vector and temperature profiles,and produces the wind shear warning analysis diagram in the horizontal and vertical directions,using AMDAR data from the Baiyun Airport Terminal Area.The case study involves the strong convection on April 17,2011 in Guangdong Province,and the AMDAR data,together with multi-source information such as Doppler weather radar,satellite and sounding,are analyzed.The study results show that the three-dimensional early warning indication on the wind vector-time height profile of the AMDAR data has a guiding significance for nowcasting strong convection at the airport.When strong wind shear occurs below 1 km,the threat to aircraft take-off and landing is serious,and the vertical distribution of the horizontal wind direction from the AMDAR data is very serious.In addition,the echo characteristics in the strong divergence region of the Doppler weather radar are confirmed.The high spatial and temporal resolution ADMAR wind speed and temperature disturbance can reveal the wind shear and turbulence in the atmosphere.The real-time and intensive vertical observation information provided by the AMDAR data is helpful to develop the products of nowcasting and early warning,and to compensate for the shortage of sounding data. |
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| Keywords: | AMDAR data airport severe convection wind shear turbulence |
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