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1. 发明授权

US11604274B2 Apparatus and method for composition for dual-polarization weather radar observation data using earth spherical coordinate system 有权
公开(公告)号：US11604274B2
公开(公告)日：2023-03-14
申请号：US16942287
申请日：2020-07-29
申请人： KOREA METEOROLOGICAL ADMINISTRATION
发明人： Youn Choi , Sung Hwa Jung , Young A Oh
IPC分类号： G01S13/95 , G01W1/10
摘要： An apparatus for composition for dual-polarization weather radar observation data includes: a coordinate system converting unit that converts a reference grid of an orthogonal coordinate system into a grid of a dual-polarization weather radar spherical coordinate system based on a latitudinal-longitudinal coordinate system for each individual dual-polarization weather radar by using an earth spherical coordinate system; a CAPPI data generating unit that generates CAPPI data based on the orthogonal coordinate system after mapping individual items of dual-polarization weather radar observation data on grid coordinates of the dual-polarization weather radar spherical coordinate system; and a CAPPI data compositing unit that performs composition of CAPPI data for each of the individual dual-polarization weather radars located at the same coordinate of the orthogonal coordinate system obtained by mapping the individual items of dual-polarization weather radar observation data thereon.

2. 发明授权

US11550051B2 Apparatus and method for estimating rainfall of hail and rain using dual-polarization weather radar 有权
公开(公告)号：US11550051B2
公开(公告)日：2023-01-10
申请号：US17010482
申请日：2020-09-02
申请人： KOREA METEOROLOGICAL ADMINISTRATION
发明人： Young A Oh , Mi Kyung Suk , Sung Hwa Jung , Hae Lim Kim
IPC分类号： G01S13/95 , G01S7/02 , G01S7/41
摘要： An apparatus and a method for estimating rainfall of hail and rain using a dual-polarization weather radar improve accuracy of classification of hail and rain zones and estimation of rainfall intensity by classifying hail and rain zones using a distribution of horizontal reflectivity and differential reflectivity of radar observation values, discriminating between a convective zone and a stratiform zone depending on reflection intensity, and applying a dual-polarization-based rainfall estimating relational equation for each type in a weighted mean technique.

3. 发明申请

US20220397639A1 METHOD FOR CORRECTION OF REFLECTIVITY ON IDENTIFIED BRIGHT BAND BASED ON POLARIMETRIC OBSERVATIONS, RECORDING MEDIUM AND DEVICE FOR PERFORMING THE METHOD 有权
公开(公告)号：US20220397639A1
公开(公告)日：2022-12-15
申请号：US17862786
申请日：2022-07-12
申请人： KOREA METEOROLOGICAL ADMINISTRATION
发明人： Jeong-Eun Lee , SooHyun Kwon , Sung-Hwa Jung
IPC分类号： G01S7/02 , G01S13/95
摘要： A reflectivity correction method using a double polarization variable-based bright band detection result includes a preprocessing operation for correcting a double polarization variable observation error and calculating a depolarization ratio; a fuzzy classifier generation operation for calculating a weighting and a membership function of each characteristic variable using a bright band height extracted from a quasi-vertical profile generated from specific elevation angle data, a bright band detection operation for detecting a bright band using a depolarization ratio and a fuzzy classifier for each elevation angle, and a reflectivity correction operation for correcting reflectivity over-observation for a detected bright band region on the basis of a correction factor calculated using an apparent profile of reflectivity generated by averaging reflectivity data for the bright band region for each elevation angle. Thus, it is possible to improve the accuracy of precipitation estimation by using the corrected reflectivity.

4. 发明申请

US20210088653A1 APPARATUS AND METHOD FOR ESTIMATING RAINFALL OF HAIL AND RAIN USING DUAL-POLARIZATION WEATHER RADAR 有权
公开(公告)号：US20210088653A1
公开(公告)日：2021-03-25
申请号：US17010482
申请日：2020-09-02
申请人： KOREA METEOROLOGICAL ADMINISTRATION
发明人： Young A OH , Mi Kyung SUK , Sung Hwa JUNG , Hae Lim KIM
IPC分类号： G01S13/95 , G01S7/02 , G01S7/41
摘要： An apparatus and a method for estimating rainfall of hail and rain using a dual-polarization weather radar improve accuracy of classification of hail and rain zones and estimation of rainfall intensity by classifying hail and rain zones using a distribution of horizontal reflectivity and differential reflectivity of radar observation values, discriminating between a convective zone and a stratiform zone depending on reflection intensity, and applying a dual-polarization-based rainfall estimating relational equation for each type in a weighted mean technique.

5. 发明申请

US20180032885A1 SYSTEM AND METHOD FOR DETERMINING WHETHER OR NOT TO PERFORM AIRBORNE GLACIOGENIC SEEDING EXPERIMENTS THROUGH NUMERICAL SIMULATIONS 审中-公开
公开(公告)号：US20180032885A1
公开(公告)日：2018-02-01
申请号：US15358151
申请日：2016-11-22
申请人： Korea Meteorological Administration
发明人： Sanghee Chae , Ki-Ho Chang , Seongkyu Seo , Jin-Yim Jeong , Baek-Jo Kim
IPC分类号： G06N5/04 , G06F17/11 , G06F17/50
CPC分类号： G06N5/04 , G06F17/11 , G06F17/5009 , G06Q10/06 , G06Q99/00
摘要： Disclosed are a system and method for determining whether to perform airborne glaciogenic seeding experiments through numerical simulations including analyzing weather factors of a target area for airborne glaciogenic seeding experiments, determining whether airborne experiments are possible based on the direction of the wind, the velocity of the wind, temperature and humidity in the target area, determining seeding information by taking into consideration the direction of the wind and the velocity of the wind, performing numerical simulations using the seeding information, displaying and calculating a seeding material spread and distribution field using the results of the numerical simulations, displaying a precipitation increment and a region, and calculating an area, and determining whether a seeding effect is present or not using the displayed and calculated results.

6. 发明授权

US09864056B2 Matching system between convective cell in weather radar image and lightning and control method thereof 有权
公开(公告)号：US09864056B2
公开(公告)日：2018-01-09
申请号：US14848155
申请日：2015-09-08
申请人： Korea Meteorological Administration
发明人： Ji Young Kim , Jeong Seok Ko , Hi Jun Yang , Tae Sun Kwon , Seung Jun Oh , Jeong Deok Lee , Mi Young Park , Gyu Won Lee , Sung Hwa Jung
IPC分类号： G01S13/95 , G01S7/06
CPC分类号： G01S13/953 , G01S7/06 , Y02A90/18
摘要： The present invention discloses a matching system between a convective cell in a weather radar image and lightning, and a control method thereof. In other words, according to the invention, convective cells are detected in a weather radar image, lightning is detected through a total lightning detection system, and the detected lightning is matched with the detected convective cells in the weather radar image. Therefore, it is possible to rapidly and accurately match and confirm a lightning-generated convective cell of a plurality of convective cells.

7. 发明授权

US09117276B2 Method and system for correction of optical satellite image 有权
标题翻译：光学卫星图像校正方法及系统
公开(公告)号：US09117276B2
公开(公告)日：2015-08-25
申请号：US13995293
申请日：2013-04-15
申请人： KOREA METEOROLOGICAL ADMINISTRATION
发明人： Chang Wook Lee , Min Ji Cho , Zhong Lu , Young Jean Choi
IPC分类号： G06K9/32 , G06T5/00 , G06T5/50
CPC分类号： G06T5/005 , G06T5/50 , G06T2207/10036 , G06T2207/20221
摘要： Provided are a method and a system for the correction of an optical satellite image, the method including: a first step in which a satellite image judgment unit inputs and receives a plurality of satellite images divided according to spectral information and judges whether or not some area is a missing satellite image; a second step in which when the satellite image judgment unit judges that the some areas is the missing satellite images, a first interpolation unit inputs and receives the plurality of satellite images and carries out one-dimensional interpolation for each satellite image; a third step in which a second interpolation unit carries out two-dimensional interpolation for each satellite image in which the one-dimensional interpolation is carried out; and a fourth step in which a satellite image composing unit composes a corrected satellite image by gathering each satellite image in which the two-dimensional interpolation is carried out.
摘要翻译：提供了一种用于校正光学卫星图像的方法和系统，所述方法包括：第一步骤，其中卫星图像判断单元输入和接收根据光谱信息划分的多个卫星图像，并且判断是否存在一些区域是一个丢失的卫星图像; 第二步骤，当卫星图像判断单元判断出某些区域是丢失的卫星图像时，第一内插单元输入并接收多个卫星图像，并对每个卫星图像执行一维插值; 第三步骤，其中第二内插单元对执行一维内插的每个卫星图像执行二维插值; 以及第四步骤，卫星图像合成单元通过收集执行二维内插的每个卫星图像来组成经校正的卫星图像。

8. 发明授权

US08606520B2 System and method for detecting volumetric soil water content 有权
标题翻译：体积土壤含水量的系统和方法
公开(公告)号：US08606520B2
公开(公告)日：2013-12-10
申请号：US13032490
申请日：2011-02-22
申请人： Sungwook Hong , Inchul Shin , Mi-Lim Ou
发明人： Sungwook Hong , Inchul Shin , Mi-Lim Ou
IPC分类号： G06F19/00 , G01N22/04
CPC分类号： G01N21/55 , G01N22/04 , G01N33/246
摘要： The present invention relates to a method that obtains emissivity or reflectivity based on ratios of the brightness temperature measured by a satellite and the land surface temperature, calculates two reflectivity using polarizing features of a microwave according to surface characteristics, and measures a volumetric soil water content of a land surface considering that water has different physical characteristics from those of soil. In particular, it may be possible to measure volumetric soil water contents on territories of other countries as well as regions which have many limitations and troubles in direct measurement of the volumetric soil water contents. Accordingly, valuable materials in terms of nation economy may be produced together with substantial contribution to industrial fields that have direct effects on agriculture and disaster prevention.
摘要翻译：本发明涉及一种基于由卫星测量的亮度温度与陆面温度的比率来获得发射率或反射率的方法，根据表面特性计算使用微波偏振特征的两个反射率，并测量体积土壤含水量考虑到水具有与土壤不同的物理特性。特别地，可以测量其他国家的领土上的体积土壤含水量，以及在直接测量体积土壤含水量方面有很多限制和困难的区域。因此，国家经济方面的宝贵资料可能对农业和防灾直接影响的工业领域作出重大贡献。

9. 发明申请

US20130147659A1 SYSTEM FOR DETECTING SEA-SURFACE WIND, USING SATELLITE OBSERVATION, AND A METHOD FOR DETECTING SEA-SURFACE WIND 有权
标题翻译：用于检测海表风的系统，使用卫星观测和检测海表风的方法
公开(公告)号：US20130147659A1
公开(公告)日：2013-06-13
申请号：US13659706
申请日：2012-10-24
申请人： Korea Meteorological Administration
发明人： Sung Wook Hong
IPC分类号： G01S13/95
CPC分类号： G01S13/955 , G01W1/10 , Y02A90/14
摘要： Systems and methods are provided that involve obtaining emissivity and reflectivity by the ratio of the radiance temperature versus the sea level temperature as observed by a satellite, and may further calculate two reflectivity values observed or simulated by the vertical or horizontal polarized channels of microwave, and then estimate a surface roughness. Further, illustrative implementations may involve obtaining the regression relation expression between the surface roughness and the wind strength and then detecting the sea-surface wind, using the information observed by the satellite again. As such, the sea-surface wind information can be obtained through satellite observation, and the information can be utilized for preventive activities against disaster including typhoon, the energy industry including wind power and the fishery in quasi-real time.
摘要翻译：提供的系统和方法包括通过由卫星观测到的辐射温度与海平面温度的比例来获得发射率和反射率，并且还可以计算由微波的垂直或水平偏振通道观察或模拟的两个反射率值，以及然后估计表面粗糙度。此外，说明性实施可以涉及通过使用卫星再次观察到的信息来获得表面粗糙度和风强度之间的回归关系表达式，然后检测海面风。因此，可以通过卫星观测获得海面风信息，该信息可以用于预防灾害，包括台风，能源工业，包括风力发电和渔业在准实时。

10. 发明授权

US11333795B2 Method for typhoon center automatic selection using vectors calculated from radar image data by optical flow technique, recording medium and device for performing the method 有权
公开(公告)号：US11333795B2
公开(公告)日：2022-05-17
申请号：US17355921
申请日：2021-06-23
申请人： KOREA METEOROLOGICAL ADMINISTRATION
发明人： Sun Jin Mo , Ji-Young Gu
IPC分类号： G06T7/215 , G01W1/10 , G06K9/62
摘要： A method for automatic selection of typhoon center using vectors calculated from radar image data by an optical flow technique includes calculating a valid vector field from the radar image data using the optical flow technique, generating a dense vector field by interpolating an empty spot of the valid vector field using linear interpolation, extracting a rotating component anomaly vector field including typhoon rotating component anomaly vectors by removing a relative vector in the interpolated valid vector field, generating a normal vector intersection point of the vectors of the extracted rotating component anomaly vector field, and finally selecting the typhoon center by calculating a maximum density normal vector intersection point based on a Gaussian kernel density estimation technique. Accordingly, it is possible to detect the moving path of the typhoon rapidly and objectively.

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