基于REST的虚拟空间天气观测台数据接口研究

发布时间：2018-05-03 02:04

本文选题：虚拟空间天气观测台 + 数据接口　；参考：《中国地质大学（北京）》2013年硕士论文

【摘要】：子午工程数据中心负责接收来自分布于全国的8个节点站，39个台站，74种设备产生的不同类型的空间科学数据文件。之后对数据文件做加工、存储、分发、服务等处理。子午工程数据中心截至2013年4月产生了多种类型的海量空间科学数据，数据文件数达到7618693，数据大小达到2.93TB，这些数据包括地磁观测数据、光学观测数据、探空火箭数据、无线电观测数据4大类。子午工程数据中心目前对外提供两种数据访问形式。第一种是主动推送方式，当数据文件进入数据中心处理完成后，数据中心分发系统根据用户订阅的信息主动推送数据给用户。第二种是用户主动登录子午工程数据中心门户网站查询、下载用户关心的数据文件。子午工程数据中心目前只提供非标准、自定义、网站形式访问的数据接口。然而国际上已经存在空间数据的国际标准数据接口，，对于子午工程数据的主要用户空间科学研究人员来说，不管是国内用户还是国际用户，这种接口不符合国际标准，使用不方便。由于子午工程数据的逐渐累积，知名度在国际上的逐渐提高，因此子午工程数据中心对外提供国际标准的数据接口非常重要且急迫。虚拟空间天气观测台（Virtual Space Weather Observatory，VSWO）是一个软件环境，提供一个来源不同、格式各异的数据的统一界面，并且提供了可视化和数据挖掘、数据发现的工具，更可以集成各类的相关模式，如地磁预报模式等。如何让虚拟空间天气观测台处理来源不同、格式各异的数据，并对用户提供统一数据接口是本文研究的内容，处理来源不同、格式各异的数据本文使用太阳物理学元数据标准联盟SPASE提出的元数据模型对数据进行描述。对于提供统一数据接口，本文使用协同数据分析接口CDAWeb，CDAWeb为CDF数据文件提供检索、下载、数据转换、可视化的标准数据接口。本文通过使用或升级子午工程数据中心现有的数据文件、数据库以及加工系统，结合SPASE元数据标准和CDAWeb数据接口标准，运用Flask技术将子午工程数据中心数据以REST数据接口形式提供给用户。使得子午工程数据中心数据以国际标准数据接口对外提供服务，不仅简化了数据中心数据的使用，而且使得子午工程数据更加面向国际化。
[Abstract]:The meridian engineering data center is responsible for receiving different types of spatial scientific data files from 8 nodes, 39 stations and 74 kinds of equipment distributed throughout the country. Then processing, storing, distributing, and services of the data files are processed. The meridian engineering data center produced a variety of massive spatial scientific data by April 2013. The number of data files is 7618693 and the size of the data reaches 2.93TB. These data include geomagnetic observation data, optical observation data, sounding rocket data and radio observation data in 4 categories.
At present, the meridian engineering data center provides two kinds of data access form to the outside world. The first is the active push method. When the data file enters the data center processing, the data center distribution system pushes the data to the user actively according to the subscribed information. The second is the user's active login to the meridian engineering data center portal. Download the data files of the user's concern. The meridian engineering data center currently only provides non standard, custom, and web site access data interfaces. However, international standard data interfaces for spatial data have already existed in the world, for the main user space science researchers of the meridian engineering data, both domestic and international. Users, this kind of interface does not conform to international standards, and it is inconvenient to use. Because of the gradual accumulation of the meridian engineering data, the popularity is gradually increasing in the world. Therefore, it is very important and urgent to provide the international standard data interface for the meridian engineering data center.
The virtual space weather observatory (Virtual Space Weather Observatory, VSWO) is a software environment that provides a unified interface for different sources and different formats of data, and provides tools for visualization and data mining, data discovery, and the integration of various types of related patterns, such as geomagnetic prediction models, and so on. How to make virtual space days The gas Observatory deals with different sources, different formats of data, and provides a unified data interface for the users. The data are different in processing sources and different in format. This paper uses the metadata model proposed by SPASE of the solar physics metadata standard alliance to describe the data. For providing a unified data interface, this paper uses the association. Interface with data analysis CDAWeb, CDAWeb provides retrieval, download, data conversion and visual standard data interface for CDF data files.
In this paper, by using or upgrading the existing data files, database and processing system of the meridian engineering data center, combining the SPASE metadata standard and the CDAWeb data interface standard, the data center data of the meridian engineering data center is provided to the user in the form of REST data interface, so that the data center of the meridian engineering data center is made by the international standard. The data interface provides services externally, which not only simplifies the use of data center data, but also makes the meridian engineering data more internationalized.

【学位授予单位】：中国地质大学（北京）
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P112;TP334.7

【参考文献】