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Patent Agency Ranking
公开(公告)号：KR101181326B1
公开(公告)日：2012-09-10
申请号：KR1020110089713
申请日：2011-09-05
Applicant: 대한민국(기상청장) , 부산대학교 산학협력단
CPC classification number: Y02A90/18
Abstract: PURPOSE: A chaff echo discrimination system and a method thereof are provided to manage the quality of radar observational data and to offer accurate meteorological forecast by eliminating a chaff echo only in UF radar data and preventing chaff to be mistaken as precipitation. CONSTITUTION: A grouping practice module(31) defines a plurality of data points having reflectivity higher than a set value as a cluster by using collected UF(Universal Format) radar data. The grouping practice module selects one cluster and groups other cluster existing within an arbitrary distance based on a space coordinate of the selected cluster with one cluster again. The grouping practice module groups other cluster existing within an arbitrary distance based on a space coordinate of the newly created cluster with one cluster. A similarity determining module(32) determines whether clusters are same or not by comparing a center coordinate and size of a cluster of previous time which is contiguous to specific time based on the center coordinate and size of a cluster of the specific time. An echo identifying module(33) compares the number which is determined as same cluster with a threshold and compartmentalizes a precipitation echo and a chaff echo. An UF radar data synthesizing module(34) receives a file of previous type in which a chaff cluster is saved and performs coordinate conversion to polar coordinates type.
Abstract translation: 目的：提供谷壳回声识别系统及其方法，以管理雷达观测数据的质量，并通过在UF雷达数据中消除谷壳回波提供准确的气象预报，防止谷壳误差为降水。 构成：分组练习模块（31）通过使用收集的UF（通用格式）雷达数据，将具有高于设定值的反射率的多个数据点定义为群集。 分组练习模块选择一个群集，并且基于再次具有一个群集的所选群集的空间坐标对任意距离内存在的其他群组进行分组。 分组练习模块基于具有一个集群的新创建的集群的空间坐标来对存在于任意距离内的其他集群进行分组。 相似度确定模块（32）通过基于特定时间的集群的中心坐标和大小来比较与特定时间相邻的先前时间的集群的中心坐标和大小来确定集群是否相同。 回波识别模块（33）将确定为相同聚类的数量与阈值进行比较，并将降水回波和谷壳回波区分开。 UF雷达数据合成模块（34）接收保存了谷壳簇的先前类型的文件，并执行向极坐标类型的坐标转换。
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公开(公告)号：KR101255966B1
公开(公告)日：2013-04-23
申请号：KR1020120028965
申请日：2012-03-21
Applicant: 경북대학교 산학협력단 , 대한민국(기상청장)
IPC: G01S13/95
CPC classification number: Y02A90/18
Abstract: PURPOSE: A method for searching a bright band region using meteorological radar 3-D reflectivity data using a mean reflectivity vertical profile and a system thereof are provided to be utilized as a fundamental resource to classify a type of rainfall particle with altitude and a type of rainfall and as a fundamental resource for accurate ground precipitation estimation. CONSTITUTION: A bright band region search system(100) using meteorological radar three-dimensional reflectivity data includes a meteorological radar three-dimensional reflectivity data collection unit(110), a mean reflectivity vertical profile generation unit(120) and a bright band region search unit(130). The meteorological radar three-dimensional reflectivity data collection unit collects meteorological radar three-dimensional reflectivity data observed in a meteorological radar system. The mean reflectivity vertical profile generation unit generates a vertical profile displaying mean reflectivity spaced by a predetermined distance with altitude using the collected meteorological radar three-dimensional reflectivity data. The bright band region search unit generates a respective vertical profile of each parameter including the first derivative, the second derivative, the curvature and the first derivative of the curvature of the generated mean reflectivity vertical profile, or the logarithm of the generated mean reflectivity vertical profile and a respective vertical profile of each parameter including the first derivative, the second derivative, the curvature and the first derivative of the curvature. The bright band region search unit searches for a peak, an upper part and a lower part of the bright band region using the mean reflectivity vertical profile and the vertical profile of each parameter. [Reference numerals] (10) Meteorological radar system; (110) Meteorological radar three-dimensional reflectivity data collection unit; (120) Mean reflectivity vertical profile generation unit; (130) Bright band region search unit;
Abstract translation: 目的：提供一种使用平均反射率垂直剖面及其系统的气象雷达3-D反射率数据搜索亮带区域的方法，作为基本资源，用于对降雨颗粒类型与高度进行分类， 作为精确降雨估算的基础资源。 构成：使用气象雷达三维反射率数据的明带搜索系统（100）包括气象雷达三维反射率数据采集单元（110），平均反射率垂直剖面生成单元（120）和亮带区域搜索 单元（130）。 气象雷达三维反射率数据采集单元收集气象雷达系统中观测到的气象雷达三维反射率数据。 平均反射率垂直剖面生成单元使用收集的气象雷达三维反射率数据生成垂直剖面显示与高度间隔预定距离的平均反射率。 亮带区域搜索单元生成包括所产生的平均反射率垂直剖面的曲率的一阶导数，二阶导数，曲率和一阶导数的每个参数的相应垂直分布，或者所生成的平均反射率垂直分布的对数 以及包括曲率的一阶导数，二阶导数，曲率和一阶导数的每个参数的相应垂直轮廓。 亮带区域搜索单元使用平均反射率垂直分布和每个参数的垂直分布来搜索亮带区域的峰值，上部和下部。 （附图标记）（10）气象雷达系统; （110）气象雷达三维反射率数据采集单元; （120）平均反射率垂直剖面生成单元; （130）明带搜索单元;
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公开(公告)号：KR101860742B1
公开(公告)日：2018-07-02
申请号：KR1020170147641
申请日：2017-11-07
Applicant: 대한민국(기상청장)
CPC classification number: Y02A90/15 , G01W1/16 , G01W2201/00 , G06F17/30241
Abstract: 본발명은낙뢰위험도분석시스템및 이를이용한낙뢰위험도분석방법에관한것으로본 발명의일 양상에따르면낙뢰관측정보-상기낙뢰관측정보는낙뢰발생위치정보, 오차정보및 낙뢰강도중 적어도하나를포함함-를획득하는단계; 상기낙뢰관측정보에기초하여복수의격자로구분된분석영역상에서낙뢰발생위치를중심으로낙뢰위험영역을설정하는단계; 상기낙뢰위험영역에포함된격자각각에대한세부위험도-상기세부위험도는밀도위험도, 강도위험도, 지형위험도및 UVIL 위험도중 적어도하나를포함함-를산출하는단계; 및상기세부위험도에기초하여낙뢰위험도를획득하는단계를포함하는낙뢰위험도분석방법이제공될수 있다.
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公开(公告)号：KR101263121B1
公开(公告)日：2013-05-15
申请号：KR1020110090458
申请日：2011-09-07
Applicant: 대한민국(기상청장) , 경북대학교 산학협력단
CPC classification number: Y02A90/18
Abstract: 본발명은채프에코제거방법에관한것으로, 더욱상세하게는, 채프가레이더에서는에코로관측되지만위성에서는관측되지않는점을이용하여위성자료와레이더자료의비교분석으로자동으로채프에코를식별하고제거할수 있는위성적외영상을이용한현업용기상레이더반사도합성자료의채프에코제거방법에관한것이다.
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公开(公告)号：KR1020130027104A
公开(公告)日：2013-03-15
申请号：KR1020110090458
申请日：2011-09-07
Applicant: 대한민국(기상청장) , 경북대학교 산학협력단
CPC classification number: Y02A90/18
Abstract: PURPOSE: A chaff echo removal method of operational meteorological radar reflectivity composite using satellite infrared image data is provided to manage radar observation data and to offer a very accurate short term meteorological forecast. CONSTITUTION: Brightness temperature color index data of a satellite infrared image is collected in real time in a plurality of radar observation networks and a meteorological satellite(S201,S202). A radar reflectivity composite image is generated from the collected radar observation data(S203) and resolution of the radar reflectivity composite image is converted to the same as the satellite infrared image(S204). To coincide the satellite infrared image with the central coordinate of the radar reflectivity composite image, the central point is converted(S205). Only the satellite infrared image in the observation range of the radar is stored, the satellite infrared image out of the observation range of the radar is processed as a null, and the satellite infrared image is converted to coincide with the radar observation radius(S206). The value of the radar reflectivity composite image corresponding to the grid point having a smaller color index than the brightness temperature color index threshold of the satellite infrared image is removed from the radar reflectivity composite image(S209). The radar reflectivity composite image, from which a chaff echo is removed, is generated(S210). [Reference numerals] (AA) Start; (BB) End; (S201) Collecting radar observation data in real time; (S202) Collecting brightness temperature(T_B) color index data of a satellite infrared image in real time; (S203) Generating a radar reflectivity composite image; (S204) Converting the resolution of the radar reflectivity composite image; (S205) Coinciding the central lattice point of the satellite infrared image with the radar reflectivity composite image; (S206) Coinciding the satellite infrared image with the observation range of the radar reflectivity composite image; (S207) Comparing brightness temperature color index data of a satellite infrared image in the most adjacent time zone to the converted radar reflectivity composite image; (S208) T_B color index of a predetermined lattice point in the satellite infrared image
Abstract translation: 目的：提供使用卫星红外图像数据操作的气象雷达反射率复合材料的谷壳回波消除方法，用于管理雷达观测数据，并提供非常准确的短期气象预报。 构成：卫星红外图像的亮度温度颜色指标数据在多个雷达观测网络和气象卫星中实时采集（S201，S202）。 雷达反射率合成图像由收集的雷达观测数据（S203）产生，雷达反射率合成图像的分辨率转换为与卫星红外图像相同（S204）。 为了将卫星红外图像与雷达反射率合成图像的中心坐标重合，转换中心点（S205）。 只有雷达观测范围内的卫星红外图像被存储，雷达观测范围外的卫星红外图像被处理为零，卫星红外图像被转换为与雷达观测半径一致（S206） 。 从雷达反射率合成图像中去除与具有比卫星红外图像的亮度温度颜色指标阈值更小的颜色指数的格子点对应的雷达反射率合成图像的值（S209）。 产生从其除去谷壳回波的雷达反射率合成图像（S210）。 （附图标记）（AA）开始; （BB）结束; （S201）实时收集雷达观测数据; （S202）实时收集卫星红外图像的亮度温度（T_B）颜色索引数据; （S203）生成雷达反射率合成图像; （S204）转换雷达反射率合成图像的分辨率; （S205）将卫星红外图像的中心格点与雷达反射率合成图像相结合; （S206）将卫星红外图像与雷达反射率合成图像的观测范围相结合; （S207）将最近相邻时间区域的卫星红外图像的亮度温度颜色指标数据与转换的雷达反射率合成图像进行比较; （S208）卫星红外图像
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