技术领域technical field
本发明属于核安全评价技术领域，涉及一种核电厂厂址选择的极端气象设计基准评价方法。The invention belongs to the technical field of nuclear safety evaluation, and relates to an evaluation method for extreme weather design criteria for site selection of nuclear power plants.
背景技术Background technique
在核电厂厂址选择、设计和安全评价中，必须调查风、降雨、雪、温度等气象变量的极值，和龙卷风、热带气旋等极端天气现象，并评价上述极端气象变量和极端天气事件的设计基准，以使核电厂的设计能够抵抗极端外部气象事件的影响，即在极端气象事件作用下核电厂不会丧失其安全功能。In the site selection, design and safety evaluation of nuclear power plants, it is necessary to investigate the extreme values of meteorological variables such as wind, rainfall, snow, temperature, and extreme weather phenomena such as tornadoes and tropical cyclones, and evaluate the design of the above extreme meteorological variables and extreme weather events Baseline, so that the design of nuclear power plants can resist the impact of extreme external meteorological events, that is, nuclear power plants will not lose their safety functions under the action of extreme meteorological events.
对于极端气象参数，由于在核电厂厂址选择和评价阶段，核电厂厂址现场气象观测资料不具备或序列太短，不满足数据统计分析的需求，因而通常根据核电厂厂址区域范围内气象台站的可用数据来进行评价，长期数据应覆盖至少30年或更长的时期。对于龙卷风和热带气旋这类极端气象事件，一方面应收集由气象部门等专门机构汇编的系统数据，另一方面还应通过气象灾害年鉴、报纸、网络等途径，收集相关的历史记录。For extreme meteorological parameters, due to the lack of on-site meteorological observation data or the short sequence of nuclear power plant site meteorological observation data during the site selection and evaluation stage of the nuclear power plant, it does not meet the needs of statistical analysis of data, so usually based on the availability of meteorological stations within the area of the nuclear power plant site Long-term data should cover a period of at least 30 years or longer. For extreme meteorological events such as tornadoes and tropical cyclones, on the one hand, systematic data compiled by specialized agencies such as meteorological departments should be collected, and on the other hand, relevant historical records should be collected through meteorological disaster yearbooks, newspapers, and the Internet.
我国目前还没有建立覆盖全国范围的极端气象数据库，各个核电集团在选址和厂址评价时，都需要针对候选厂址开展详细的气象资料收集、数据统计分析和极端气象设计基准评价等工作。这样不仅工作量繁重，人工分析评价成本高，而且所得成果多以文字、表格和零散图表来表示，未建立起相关成果和全国地理空间的位置关联和数据共享机制，数据应用效率相对低下。从核电厂选址阶段到建造和运行阶段，通常需历时好几年，为了满足安全分析报告等相关文件的编制和审管要求，通常需要增补最近年份的相关资料，对极端气象设计基准进行复核，这又进一步增加了调查、分析、评价和审查的工作量和成本，且这类基于单个厂址的调查分析，不便于从整体上了解极端气象参数和极端气象现象的空间分布特征，为核电厂址安全评价、相关申请文件的编制和厂址安全审查带来了诸多不便。At present, my country has not yet established a nationwide extreme weather database, and each nuclear power group needs to carry out detailed meteorological data collection, data statistical analysis, and extreme weather design benchmark evaluation for candidate sites when selecting and evaluating sites. In this way, not only the workload is heavy, but the cost of manual analysis and evaluation is high, and the results obtained are mostly expressed in text, tables and scattered charts. There is no establishment of relevant results and national geographical space location association and data sharing mechanism, and the efficiency of data application is relatively low. It usually takes several years from the site selection stage to the construction and operation stage of a nuclear power plant. In order to meet the requirements for the preparation and review of relevant documents such as safety analysis reports, it is usually necessary to supplement the relevant information of the latest year and review the extreme weather design basis. This further increases the workload and cost of investigation, analysis, evaluation and review, and this type of investigation and analysis based on a single site is not convenient for understanding the spatial distribution characteristics of extreme meteorological parameters and extreme meteorological phenomena as a whole. The evaluation, preparation of related application documents and site safety review brought a lot of inconvenience.
因此，有必要建立一套核电厂址极端气象设计基准评价系统，该系统包括覆盖全国的极端气象资料数据库，数据库可更新和维护，通过引入极端气象设计基准评价的外部算法，并与地理信息关联，能够对全国范围的目标厂址进行极端气象设计基准的快速评价和再分析，从而为核电厂址安全评价、核安全审查和定期安全审查提供便捷。Therefore, it is necessary to establish a set of extreme weather design basis evaluation system for nuclear power plant sites, the system includes a national extreme weather data database, the database can be updated and maintained, by introducing external algorithms for extreme weather design basis evaluation, and associated with geographic information, It can quickly evaluate and reanalyze the design basis of extreme weather for target sites nationwide, thus providing convenience for nuclear power site safety evaluation, nuclear safety review and periodic safety review.
发明内容Contents of the invention
本发明的目的是提供一种核电厂厂址选择的极端气象设计基准评价方法，以能够将全国范围内的极端气象数据与全国地理空间进行位置关联，通过耦合地理信息系统平台和各极端气象设计基准评价模型，快速计算和显示目标厂址的极端气象设计基准，从而为核电厂厂址安全评价提供技术支持。The purpose of the present invention is to provide a method for evaluating extreme weather design criteria for nuclear power plant site selection, so as to be able to correlate the extreme weather data nationwide with the national geographic space, by coupling the geographic information system platform and each extreme weather design criteria The evaluation model quickly calculates and displays the extreme weather design basis of the target site, thereby providing technical support for the site safety assessment of nuclear power plants.
为实现此目的，在基础的实施方案中，本发明提供一种核电厂厂址选择的极端气象设计基准评价方法，所述的评价方法包括如下步骤，To achieve this purpose, in a basic embodiment, the present invention provides an evaluation method for extreme weather design basis for site selection of a nuclear power plant, and the evaluation method includes the following steps,
(1)极端气象数据收集：收集全国范围内与核电厂选址、厂址安全分析相关的极端气象参数和极端气象事件数据资料；(1) Extreme weather data collection: collect extreme weather parameters and extreme weather event data related to nuclear power plant site selection and site safety analysis nationwide;
(2)数据处理与提取：对收集到的原始资料进行订正与处理，提取与极端气象设计基准评价直接相关的信息；(2) Data processing and extraction: correct and process the collected raw data, and extract information directly related to the evaluation of extreme weather design criteria;
(3)构建基于地理信息系统的极端气象数据管理系统：完成向地理信息系统平台的数据转换，将极端气象数据与全国地理空间进行位置关联，构建基于地理信息系统的极端气象数据管理系统，实现各项数据储存、管理、维护、查询、显示和输出；(3) Build an extreme weather data management system based on geographic information system: complete the data conversion to the geographic information system platform, associate the extreme weather data with the national geographic space, build an extreme weather data management system based on geographic information system, and realize Various data storage, management, maintenance, query, display and output;
(4)建立各极端气象参数和事件的设计基准评价模型；(4) Establish a design basis evaluation model for each extreme meteorological parameter and event;
(5)计算目标厂址的极端气象设计基准：选择合适的网格单元大小，设置虚拟网格目标厂址和离散目标厂址，通过二次编程，耦合地理信息系统平台和各极端气象设计基准目标参数的算法，计算目标厂址的极端气象设计基准；(5) Calculate the extreme weather design basis of the target site: select the appropriate grid cell size, set the virtual grid target site and discrete target site, and couple the geographic information system platform with the target parameters of each extreme weather design basis through secondary programming Algorithm to calculate the extreme weather design basis of the target site;
(6)回顾或再分析：对评价模型计算结果进行空间分析和可视化表达，通过加载与利用新数据，进行回顾或再分析。(6) Review or reanalysis: perform spatial analysis and visual expression on the calculation results of the evaluation model, and review or reanalyze by loading and utilizing new data.
在一种优选的实施方案中，本发明提供一种核电厂厂址选择的极端气象设计基准评价方法，其中步骤(1)中所述的极端气象事件数据资料包括全国尽可能多的气象台站记录的历年最大风速、极大风速、极端最高和最低气温、历年影响全国的热带气旋资料和龙卷风资料。In a kind of preferred embodiment, the present invention provides a kind of extreme weather design basis evaluation method of nuclear power plant site selection, wherein the extreme weather event data data described in step (1) comprises the weather station record of as much as possible of the whole country Maximum wind speed, maximum wind speed, extreme maximum and minimum temperature, tropical cyclone data and tornado data affecting the whole country over the years.
在一种更加优选的实施方案中，本发明提供一种核电厂厂址选择的极端气象设计基准评价方法，其中步骤(1)中所述的极端气象事件数据资料对于有降雪的气象台站，还包括历年冬季48小时最大降水量和最大积雪深度。In a more preferred embodiment, the present invention provides a kind of extreme weather design basis evaluation method of nuclear power plant site selection, wherein the extreme weather event data data described in the step (1) also includes snowfall meteorological stations The 48-hour maximum precipitation and maximum snow depth in winter over the years.
在一种优选的实施方案中，本发明提供一种核电厂厂址选择的极端气象设计基准评价方法，其中步骤(1)中所述的极端气象事件数据资料的收集时间为至少30年或有气象记录以来的所有年份。In a preferred embodiment, the present invention provides an extreme weather design basis evaluation method for site selection of a nuclear power plant, wherein the collection time of the extreme weather event data data described in step (1) is at least 30 years or there is a weather All years since the record.
在一种优选的实施方案中，本发明提供一种核电厂厂址选择的极端气象设计基准评价方法，其中步骤(3)中所述的基于地理信息系统的极端气象数据管理系统包括空间数据库模块、图层处理模块、查询及定位模块、输出显示模块。In a preferred embodiment, the present invention provides a kind of extreme weather design basis evaluation method of nuclear power plant site selection, wherein the extreme weather data management system based on geographic information system described in step (3) comprises a spatial database module, Layer processing module, query and positioning module, output display module.
在一种更加优选的实施方案中，本发明提供一种核电厂厂址选择的极端气象设计基准评价方法，其中所述的空间数据库模块又包括地图数据库模块与极端气象数据库模块。In a more preferred embodiment, the present invention provides an extreme weather design basis evaluation method for nuclear power plant site selection, wherein the spatial database module further includes a map database module and an extreme weather database module.
在一种优选的实施方案中，本发明提供一种核电厂厂址选择的极端气象设计基准评价方法，其中步骤(4)中所述的设计基准评价模型包括热带气旋、龙卷风、极端风、极端温度和极端积雪设计基准评价模型。In a preferred embodiment, the present invention provides a method for evaluation of extreme weather design basis for nuclear power plant site selection, wherein the design basis evaluation model described in step (4) includes tropical cyclone, tornado, extreme wind, extreme temperature and extreme snow cover design benchmark evaluation models.
本发明中使用的术语“地理信息系统”(Geographic Information System，GIS)是一种管理和分析空间地理数据，使空间信息可视化的计算机软件系统(参见：吴秀芹，张洪岩，李瑞改等.ArcGIS 9地理信息系统应用与实践[M].北京:清华大学出版社,2007)，在计算机硬、软件环境的支持下，对空间相关数据进行采集、管理、操作、分析、模拟和显示，提供空间和动态的地理信息。The term "Geographic Information System" (Geographic Information System, GIS) used in the present invention is a computer software system that manages and analyzes spatial geographic data and visualizes spatial information (see: Wu Xiuqin, Zhang Hongyan, Li Ruigai, etc. ArcGIS 9 Geographic Information System Application and Practice [M]. Beijing: Tsinghua University Press, 2007), with the support of computer hardware and software environment, it collects, manages, operates, analyzes, simulates and displays spatially related data, providing spatial and Dynamic geographic information.
本发明的有益效果在于，利用本发明的核电厂厂址选择的极端气象设计基准评价方法，能够将全国范围内的极端气象数据与全国地理空间进行位置关联，通过耦合GIS平台和各极端气象设计基准评价模型，快速计算和显示目标厂址的极端气象设计基准，从而为核电厂厂址安全评价提供技术支持。The beneficial effect of the present invention is that, using the extreme weather design basis evaluation method for nuclear power plant site selection of the present invention, the extreme weather data across the country can be associated with the national geographic space, and by coupling the GIS platform and each extreme weather design basis The evaluation model quickly calculates and displays the extreme weather design basis of the target site, thereby providing technical support for the site safety assessment of nuclear power plants.
本发明提供了一种核电厂厂址极端气象设计基准评价系统的构建方法，该系统以GIS为平台，对与空间分布相关的极端气象数据资料进行采集、储存、管理、运算、分析和显示，通过引入极端气象设计基准评价的外部算法，使用户可以便捷地评价目标厂址各类极端气象参数或事件的设计基准，并以更加直观的形式来展示。The present invention provides a construction method of an extreme meteorological design reference evaluation system for a nuclear power plant site. The system uses GIS as a platform to collect, store, manage, calculate, analyze and display extreme meteorological data related to spatial distribution. The external algorithm for extreme weather design basis evaluation is introduced, so that users can easily evaluate the design basis of various extreme meteorological parameters or events at the target site, and display them in a more intuitive form.
通过本发明的评价方法构建的核电厂厂址极端气象设计基准评价系统包括一套覆盖全国的多源极端气象数据库，该极端气象数据与全国地理空间进行了位置关联，可实现各项数据储存、管理、维护和查询，气象数据库具备可扩充和可更新功能。该基准评价系统将GIS平台和各极端气象设计基准评价模型进行了耦合，可实现快速计算目标厂址的极端气象设计基准功能，这样既可以对全国范围极端气象设计基准进行高质量的可视化表达，直观地从整体上掌握极端气象参数和极端气象现象的空间分布特征，又可显示特定厂址的设计基准，能够便捷地进行设计基准的复核或再分析。The nuclear power plant site extreme weather design benchmark evaluation system constructed by the evaluation method of the present invention includes a set of multi-source extreme weather databases covering the whole country. The extreme weather data is associated with the national geographic space, and various data storage and management can be realized. , maintenance and query, the meteorological database has expandable and updateable functions. The benchmark evaluation system couples the GIS platform with the extreme weather design benchmark evaluation model, which can realize the function of quickly calculating the extreme weather design benchmark of the target site, so that it can not only carry out high-quality visual expression of the extreme weather design benchmark nationwide, but also intuitively It can grasp the spatial distribution characteristics of extreme meteorological parameters and extreme meteorological phenomena as a whole, and can also display the design basis of a specific plant site, and can conveniently review or re-analyze the design basis.
本发明的评价方法实用性强，大大提高了极端气象数据的应用效率，降低了调查、分析、评价和审查的工作量和成本，可应用于核电厂的厂址普选、初步可行性研究、可行性研究阶段极端气象设计基准评价，以及后续设计和运行阶段极端气象设计基准复核和再分析，从而为核电厂厂址安全评价、核安全审查和定期安全审查提供了便捷。The evaluation method of the present invention has strong practicability, greatly improves the application efficiency of extreme meteorological data, reduces the workload and cost of investigation, analysis, evaluation and review, and can be applied to general site selection, preliminary feasibility study and feasibility study of nuclear power plants. The evaluation of the extreme weather design basis in the research stage, and the review and reanalysis of the extreme weather design basis in the subsequent design and operation stages provide convenience for the site safety evaluation, nuclear safety review and periodic safety review of nuclear power plants.
附图说明Description of drawings
图1为示例性的本发明的核电厂厂址选择的极端气象设计基准评价方法的流程图。Fig. 1 is a flow chart of an exemplary extreme weather design basis evaluation method for site selection of a nuclear power plant according to the present invention.
图2为示例性的本发明的核电厂厂址选择的极端气象设计基准评价方法所构建的基于GIS的极端气象数据管理系统的功能模块图。Fig. 2 is a functional block diagram of an exemplary GIS-based extreme weather data management system constructed by the extreme weather design basis evaluation method for nuclear power plant site selection of the present invention.
图3为示例性的本发明的核电厂厂址选择的极端气象设计基准评价方法所建立的极端气象设计基准评价模型的组成图。Fig. 3 is a composition diagram of an extreme weather design basis evaluation model established by an exemplary extreme weather design basis evaluation method for site selection of a nuclear power plant according to the present invention.
具体实施方式Detailed ways
以下结合附图对本发明的具体实施方式作出进一步的说明。The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.
示例性的本发明的核电厂厂址选择的极端气象设计基准评价方法的流程如图1所示，先后包括如下步骤：The flow chart of the exemplary extreme weather design basis evaluation method for nuclear power plant site selection of the present invention is shown in Figure 1, and includes the following steps successively:
(1)极端气象数据收集；(1) extreme weather data collection;
(2)数据处理与提取；(2) Data processing and extraction;
(3)构建基于GIS的极端气象数据管理系统；(3) Build a GIS-based extreme weather data management system;
(4)建立极端气象设计基准评价模型；(4) Establish an evaluation model for extreme weather design criteria;
(5)基于GIS的可视化显示。(5) Visual display based on GIS.
利用图1所示的方法流程构建的基于GIS的极端气象数据管理系统包括的功能模块如图2所示，包括空间数据库(又包括地图数据库与极端气象数据库模块)、图层处理模块、查询及定位模块、输出显示模块。The GIS-based extreme weather data management system constructed using the method flow shown in Figure 1 includes functional modules as shown in Figure 2, including spatial database (including map database and extreme weather database modules), layer processing module, query and Positioning module, output display module.
利用图1所示的方法流程建立的极端气象设计基准评价模型的组成如图3所示，包括热带气旋、龙卷风、极端风、极端温度和极端积雪设计基准评价模型。The composition of the extreme weather design basis evaluation model established using the method flow shown in Figure 1 is shown in Figure 3, including tropical cyclone, tornado, extreme wind, extreme temperature and extreme snow design basis evaluation models.
基于图1所示方法流程、图2所示功能模块、图3所示基准评价模型的组成，以下以极端气象要素中的最大风速为例，详细说明本发明的具体实施方式。Based on the composition of the method flow shown in FIG. 1 , the functional modules shown in FIG. 2 , and the benchmark evaluation model shown in FIG. 3 , the specific implementation of the present invention will be described in detail below taking the maximum wind speed among extreme meteorological elements as an example.
如图1所示，示例性的本发明的核电厂厂址选择的极端气象设计基准评价方法包括以下步骤：As shown in Figure 1, the extreme weather design basis evaluation method of exemplary nuclear power plant site selection of the present invention comprises the following steps:
1)收集全国范围内尽可能多的气象台站有记录以来或至少30年以上的历年最大风速。1) Collect the maximum wind speed over the years from as many meteorological stations across the country as possible or at least for more than 30 years.
2)对收集到的各个台站最大风速序列进行检查，若最大风速中含有2分钟平均值，则将其转化为10分钟平均值；若测风高度不为10米，则利用风速幂指数律或对数风廓线律将其插值到10米高度值；若最大风速有缺测，则采用合适的方法对最大风速进行插补，得到各个台站10米高度10分钟平均的最大风速完整序列。2) Check the collected maximum wind speed series of each station. If the maximum wind speed contains a 2-minute average value, convert it to a 10-minute average value; if the wind measurement height is not 10 meters, use the power exponent law of wind speed Or logarithmic wind profile law to interpolate it to the 10-meter height value; if the maximum wind speed is missing, use an appropriate method to interpolate the maximum wind speed, and obtain the complete sequence of the maximum wind speed at each station at a height of 10 meters for 10 minutes .
3)在GIS中加载全国范围的矢量图层，矢量图层的获取可通过对全国范围进行地图数字化等方法获取。在矢量图层中对各个气象台站按照经纬度进行定位。对于各个台站，采用关系型数据库存储步骤2)中获得的最大风速完整序列，利用关系型数据库的存储过程及触发器管理最大风速数据集，构建空间数据库。3) Load the nationwide vector layer in GIS, and the vector layer can be obtained by digitizing the map of the whole country. Each meteorological station is positioned according to latitude and longitude in the vector layer. For each station, a relational database is used to store the complete sequence of maximum wind speed obtained in step 2), and the stored procedure and triggers of the relational database are used to manage the maximum wind speed data set to construct a spatial database.
采用基于分层的数据组织方法管理空间数据库，即基础地理数据由一个图层管理，最大风速数据由另一个图层管理，对所有极端气象要素分别建立不同图层，构建图层处理模块。The data organization method based on layering is used to manage the spatial database, that is, the basic geographic data is managed by one layer, and the maximum wind speed data is managed by another layer. Different layers are established for all extreme meteorological elements, and a layer processing module is constructed.
构建查询及定位模块和输出显示模块。采用点选查询和条件查询两种方式实现极端气象数据的查询，即用户既可以通过点选图层中的要素查询要素信息，也可以通过输入查询条件，查询所关心的要素信息。执行条件查询后，满足条件的要素信息通过图表方式显示或输出。Construct query and positioning module and output display module. The query of extreme meteorological data is realized by two methods of point-and-click query and condition query, that is, users can not only query the element information by clicking the elements in the layer, but also query the element information of interest by entering the query conditions. After the conditional query is executed, the element information that satisfies the condition is displayed or output in the form of a graph.
将空间数据库、图层处理模块、查询及定位模块和输出显示模块集成，构成基于GIS的极端气象数据管理系统(见图2)。The spatial database, layer processing module, query and positioning module and output display module are integrated to form a GIS-based extreme meteorological data management system (see Figure 2).
4)建立各极端气象参数和事件的设计基准评价模型，包括热带气旋、龙卷风、极端风、极端温度和极端积雪设计基准评价模型(见图3)。4) Establish design basis evaluation models for extreme meteorological parameters and events, including design basis evaluation models for tropical cyclones, tornadoes, extreme winds, extreme temperatures, and extreme snow cover (see Figure 3).
对于最大风速等极端气象参数，采用极值统计方法，设置多种极值分布函数，通过比较和试算，选择最适合于数据组的统计分布来评价平均再现间隔值及其置信限。For extreme meteorological parameters such as the maximum wind speed, the extreme value statistical method is used to set a variety of extreme value distribution functions. Through comparison and trial calculation, the statistical distribution most suitable for the data group is selected to evaluate the average recurrence interval value and its confidence limit.
5)选择合适的网格单元大小，设置网格和离散目标厂址。例如，将全国划分为合适的网格，以网格节点作为虚拟网格目标厂址；将已建、在建或拟建的厂址作为离散目标厂址。5) Select the appropriate grid cell size, set the grid and discrete target site. For example, the whole country is divided into appropriate grids, and the grid nodes are used as the target sites of the virtual grid; the sites that have been built, are under construction or proposed are used as discrete target sites.
搜索目标厂址80km半径范围内的气象台站，提取最大风速图层中相关气象台站的最大风速数据序列，通过二次编程，将各个台站的最大风速序列引入极端风设计基准评价模型，计算各个台站对应的百年一遇最大风速。选择距离平方反比或其它适宜的插值方法，计算网格目标厂址的百年一遇最大风速，作为其最大风速设计基准。对于离散厂址，选择80km半径范围内各个台站百年一遇最大风速的最大值作为其最大风速设计基准。Search the meteorological stations within the 80km radius of the target site, extract the maximum wind speed data sequence of the relevant meteorological stations in the maximum wind speed layer, and introduce the maximum wind speed sequence of each station into the extreme wind design benchmark evaluation model through secondary programming, and calculate the maximum wind speed of each station. The station corresponds to the maximum wind speed once in a hundred years. Select the inverse square of distance or other suitable interpolation methods to calculate the once-in-a-century maximum wind speed of the grid target site as the design basis for its maximum wind speed. For discrete plant sites, the maximum value of the once-in-a-century maximum wind speed of each station within a radius of 80km is selected as the design basis for its maximum wind speed.
6)对基于网格目标厂址的极端气象设计基准进行空间插值，生成栅格图像，在GIS中显示为带有等值线的色斑图；对基于离散目标厂址的极端气象设计基准，将其标注或用气象符号显示在目标厂址上。用户通过更新和维护最大风速数据图层中相关台站的最大风速序列，可选择不同长度的数据序列，进行设计基准的复核、对比和再分析。6) Spatial interpolation is performed on the extreme weather design basis based on the grid target site to generate a raster image, which is displayed as a color spot map with contour lines in GIS; for the extreme weather design basis based on the discrete target site, its Labeled or displayed with meteorological symbols on the target site. By updating and maintaining the maximum wind speed sequence of relevant stations in the maximum wind speed data layer, users can select data sequences of different lengths for review, comparison and reanalysis of design criteria.
上面以极端气象要素中的最大风速为例，对本发明的实施方式作了举例详细说明。对于极大风速、极端最高和最低气温、极端积雪、设计基准热带气旋和龙卷风，尽管收集的资料、数据处理方法、设计基准评价模型，以及设计基准相关参数有所不同，但其设计基准评价系统的构建方法是类似的。Taking the maximum wind speed among extreme meteorological elements as an example, the embodiments of the present invention are illustrated in detail above. For extreme wind speed, extreme maximum and minimum temperature, extreme snow cover, design basis tropical cyclones and tornadoes, although the collected data, data processing methods, design basis evaluation models, and design basis related parameters are different, the design basis evaluation The construction method of the system is similar.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若对本发明的这些修改和变型属于本发明权利要求及其同等技术的范围之内，则本发明也意图包含这些改动和变型在内。上述实施方式只是对本发明的举例说明，本发明也可以以其它的特定方式或其它的特定形式实施，而不偏离本发明的要旨或本质特征。因此，描述的实施方式从任何方面来看均应视为说明性而非限定性的。本发明的范围应由附加的权利要求说明，任何与权利要求的意图和范围等效的变化也应包含在本发明的范围内。Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention also intends to include these modifications and variations. The above-mentioned embodiments are only illustrations of the present invention, and the present invention can also be implemented in other specific ways or other specific forms without departing from the gist or essential features of the present invention. Accordingly, the described embodiments should be considered in all respects as illustrative and not restrictive. The scope of the present invention should be described by the appended claims, and any changes equivalent to the intention and scope of the claims should also be included in the scope of the present invention.
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| CN201711166526.7ACN108153807A (en) | 2017-11-21 | 2017-11-21 | A kind of extreme meteorological design basis evaluation method of site of nuclear power plant selection |
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