新一代气象雷达数据分析及存储系统的设计及实现

发布时间：2018-01-07 04:16

本文关键词：新一代气象雷达数据分析及存储系统的设计及实现　出处：《电子科技大学》2013年硕士论文　论文类型：学位论文

【摘要】：在本文中，，针对绵阳市气象局自身的实际需求，结合绵阳市本地的气象历史数据，设计并实现了一套雷达数据信息化系统，其主要功能包括：雷达产品数据的实时提取；雷达基数据、产品和基数据文件网络节点存储，并能够以一天作为基本单位来压缩数据文件；以本地气象历史数据为基础，使用WEKA作为数据挖掘工具，推导并建立了关键气象产品数据与实际降雨等级之间的分类规则，在雷达产品数据的实时提取之后，通过该模型可以立即初步判断该站点当前的降雨等级，可以为绵阳市的防汛抗灾做出一定的贡献；在已经提取的产品数据基础上，实现了查询系统，其主要功能为查询已经获取的天气历史数据，并能够从网络存储节点上将存储的历史天气资料压缩文件提取到本地工作目录下，供用户进一步操作；查询子系统还提供了专门的监测窗口，可以定时刷新最新的雷达产品数据以及判定的降雨等级，可根据等级的不同采用不同的色彩配置醒目显示；此外，查询系统还提供了对站点的管理、重点监测站点的设置等辅助功能。本系统针对实际需求，能够有效地为绵阳市气象局内部的信息化建设做出应有的贡献。同时，这也是绵阳市气象局内部首次尝试对雷达数据进行深入的挖掘和应用，通过对实际工作经验的总结和已有资料的分析，确定了4个关键雷达产品，分别是：回波项高、1小时估测降水量、组合反射率因子和液态含水量，力图通过这些关键的雷达产品数据，对绵阳市最为常见的极端天气过程-暴雨进行实时的预估分类，这是对新一代气象雷达所产生数据的较为深入应用。本系统还解决了以往气象局内部由于雷达数据文件累计量巨大而无法有效管理的弊病，通过网络节点存储的方式，为历史气象数据的存储和管理提供了一条科学的道路，这对于气象局内部的气象历史数据管理方式有着非常大的影响。通过解析得到并保存到数据库中的雷达产品数据，不仅可以用于降雨量的预估分类，还可以为日后的进一步天气过程分析提供有力的依据。最后，本系统通过监控的方式，可以为用户提供关键产品数据与预判降水量等级等信息，这解决了以往雷达数据与降雨等天气现象无直接关联的问题，能够为绵阳市防汛抗灾提供一定的科学依据。
[Abstract]:In this paper, according to the actual needs of the Mianyang Meteorological Bureau of Mianyang city itself, combined with the local meteorological history data, the design and implementation of a radar data information system, its main functions include: real-time extraction of Radar Product data; radar data, products and base of network nodes, according to the documents, and be able to one day as the basic unit to compress the data file to the local weather; based on historical data, the use of WEKA as a data mining tool, establishes the classification rules between key meteorological data and actual rainfall grade products are deduced and, after the real-time extraction of radar data, the model can immediately preliminary judgment of the current site rainfall grade, can Mianyang city flood control and disaster make a contribution; in the product data base has been extracted, the realization of the query system, its main function is to query has been The historical weather data acquisition, and can compress the file from the network storage node will store the historical weather data to extract the local working directory, for further user operation; query sub system also provides a special monitoring window, can refresh the radar products the latest data and rainfall grade evaluation, according to the level of the use different color configuration different eye-catching display; in addition, the system also provides a query to the site management, setting auxiliary functions such as key monitoring sites. This system according to the actual demand, can effectively contribute to the informatization construction within the Mianyang Municipal Meteorological Bureau. At the same time, this is also the Mianyang Municipal Meteorological Bureau within the first attempt mining and application of in-depth analysis of radar data, based on the practical experience and the existing information, identified 4 key points of radar products Don't be a high echo: 1 hours, precipitation estimation, reflectivity factor and liquid water content, through the data of these key radar products, in Mianyang, the most common extreme weather - rain forecast classification in real time, this is the in-depth application of new generation weather radar data. This system also solves the defects due to Meteorological Bureau internal radar data file and cannot effectively accumulated huge amount of management, through the network node storage mode and provides a scientific way for the storage and management of historical meteorological data, has a very large impact on the internal Meteorological Bureau meteorological history data management. By analyzing the obtained and saved to the radar data in the database, not only can be used for prediction of rainfall classification, can also provide a strong basis for the further analysis of the day after the weather process According to this system. Finally, by monitoring the way information can provide users with key product data and predict the precipitation grade, which solves the radar data and rainfall and other weather phenomena are not directly related to the problem, provide a scientific basis for the Mianyang city flood disaster.

【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P413;TP333

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