西北太平洋热带气旋检索分析WebGIS开发研究

发布时间：2019-01-15 07:13

【摘要】：我国是受热带气旋灾害影响最为严重的国家之一,国内外气象部门对热带气旋的活动规律做了大量的研究工作,热带气旋的分析预报对我国防灾减灾工作具有指导作用。随着WebGIS技术的不断发展和公众服务意识的增强,研究人员对热带气旋数据的研究和使用方法提出了更多的要求,公众对热带气旋等灾害性天气信息的共享发布也有了更高的要求,因此建立热带气旋检索WebGIS系统对热带气旋的研究和服务具有重要意义。 Flex是一个高效的开源跨平台开发框架,它不仅有C/S系统强大的功能,而且具有B/S系统的易访问等特性,是目前流行的富客户端技术之一。REST是一种新的互联网软件架构风格,它将Web服务都抽象成资源,所以采用REST风格架构的WebGIS会降低系统前后台的耦合度,提高系统的可扩展性。本文从理论研究和实际应用出发,根据热带气旋空间数据的海量性、分布性、存档性和强时序性等特点,基于GIS空间数据管理和分析技术,采用REST架构和Flex富客户端技术,开发了“西北太平洋热带气旋检索WebGIS系统”,系统提供多源数据检索与分析功能,提高了热带气旋预防减灾的能力。论文的主要工作和成果包括以下几个方面：一、分析了GIS技术在热带气旋的应用现状,提出了客户端表现层采用Flex技术,服务器端软件采用REST风格架构来开发热带气旋WebGIS系统,系统不仅具有专业桌面系统强大的业务分析功能,而且具有Web系统的易用性等特点,可以满足不同用户的功能需求。二、研究了海量气象观测数据的存储特点和更新规律,利用ArcEngine二次开发组件,开发了将气象数据转换成GIS数据的程序,确保系统数据的完整性和时效性。使用ASP.NET技术开发了气象数据的切片REST服务,客户端可以实时快速加载各类气象观测数据,达到数据快速共享的目的。三、开发了热带气旋检索WebGIS系统,系统集成了查询分析、数据叠加显示和GIS地图制作等功能,为业务人员和公众提供数据与地图服务。
[Abstract]:China is one of the countries most seriously affected by tropical cyclone disasters. The meteorological departments at home and abroad have done a lot of research on the regularity of tropical cyclone activities. The analysis and prediction of tropical cyclones play a guiding role in disaster prevention and mitigation in China. With the development of WebGIS technology and the enhancement of public service awareness, researchers have put forward more requirements for the research and use of tropical cyclone data. The public also has higher requirements for sharing and publishing the information of tropical cyclones and other disastrous weather, so it is of great significance to establish a tropical cyclone retrieval WebGIS system for the research and service of tropical cyclones. Flex is an efficient open source cross-platform development framework. It not only has the powerful function of C / S system, but also has the characteristics of easy access of B / S system. REST is one of the most popular rich client technologies. REST is a new style of Internet software architecture, which abstracts all Web services into resources. Therefore, WebGIS with REST style architecture will reduce the coupling degree of the system and improve the extensibility of the system. Based on the theoretical research and practical application, according to the characteristics of the tropical cyclone spatial data, such as magnanimity, distribution, archiving and strong time series, based on GIS spatial data management and analysis technology, this paper adopts REST architecture and Flex rich client technology. A "WebGIS system for tropical cyclone retrieval in the Northwest Pacific Ocean" is developed. The system provides multi-source data retrieval and analysis functions and improves the capability of tropical cyclone disaster reduction prevention. The main work and achievements of this paper are as follows: firstly, the application status of GIS in tropical cyclone is analyzed, and Flex technology is used in client presentation layer. The server-side software adopts REST style architecture to develop tropical cyclone WebGIS system. The system not only has the powerful business analysis function of professional desktop system, but also has the characteristics of Web system's ease of use, which can meet the functional needs of different users. Secondly, the storage characteristics and updating rules of massive meteorological observation data are studied. The program of converting meteorological data to GIS data is developed by using ArcEngine secondary development module to ensure the integrity and timeliness of the system data. The sliced REST service of meteorological data is developed by using ASP.NET technology. The client can load all kinds of meteorological observation data in real time and quickly, so that the data can be shared quickly. Thirdly, a tropical cyclone retrieval WebGIS system is developed, which integrates query and analysis, data superposition display and GIS map making to provide data and map service for business personnel and the public.
【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P208

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