地磁Ap指数数据(1932~2016)|地磁活动数据集|地球物理数据数据集
收藏中国区域交通网络数据集
该数据集包含中国各区域的交通网络信息,包括道路、铁路、航空和水路等多种交通方式的网络结构和连接关系。数据集详细记录了各交通节点的位置、交通线路的类型、长度、容量以及相关的交通流量信息。
data.stats.gov.cn 收录
Materials Project
材料项目是一组标有不同属性的化合物。数据集链接: MP 2018.6.1(69,239 个材料) MP 2019.4.1(133,420 个材料)
OpenDataLab 收录
Population and Housing Census of 2007 - Ethiopia
Geographic coverage --------------------------- National coverage Analysis unit --------------------------- Household Person Housing unit Universe --------------------------- The census has counted people on dejure and defacto basis. The dejure population comprises all the persons who belong to a given area at a given time by virtue of usual residence, while under defacto approach people were counted as the residents of the place where they found. In the census, a person is said to be a usual resident of a household (and hence an area) if he/she has been residing in the household continuously for at least six months before the census day or intends to reside in the household for six months or longer. Thus, visitors are not included with the usual (dejure) population. Homeless persons were enumerated in the place where they spent the night on the enumeration day. The 2007 census counted foreign nationals who were residing in the city administration. On the other hand all Ethiopians living abroad were not counted. Kind of data --------------------------- Census/enumeration data [cen] Mode of data collection --------------------------- Face-to-face [f2f] Research instrument --------------------------- Two type sof questionnaires were used to collect census data: i) Short questionnaire ii) Long questionnaire Unlike the previous censuses, the contents of the short and long questionnaires were similar both for the urban and rural areas as well as for the entire city. But the short and the long questionnaires differ by the number of variables they contained. That is, the short questionnaire was used to collect basic data on population characteristics, such as population size, sex, age, language, ethnic group, religion, orphanhood and disability. Whereas the long questionnaire includes information on marital status, education, economic activity, migration, fertility, mortality, as well as housing stocks and conditions in addition to those questions contained in a short questionnaire.
catalog.ihsn.org 收录
中国地质调查局: 全国1∶200 000区域水文地质图空间数据库
全国1∶200 000区域水文地质图空间数据库以建国后在全国范围内(本次未在香港特别行政区、澳门特别行政区和台湾省开展工作) 30个省开展的1∶200 000区域水文地质普查工作所取得的区域水文地质普查报告、综合水文地质图等地质资料为数据源,在制定的“1∶200 000区域水文地质图空间数据库图层及属性文件格式标准”的基础上,建成了一个全国性的、大型的区域水文地质学空间数据库。该数据库总共采集、处理了全国范围内1∶200 000图幅的<number>1 017</number>幅全要素综合水文地质图信息,全部数据量约50 GB。数据库涵盖了以1∶200 000国际标准图幅为管理单位的水文地质要素空间数据图层,内容包括:地理要素(交通层、水系层、行政区划层等),基础地质要素(地层分区层、断裂构造层),水文地质要素(地下水类型层、地下水富水性层、地下水迳流模数层,地下水水质层、水文地质特征层、地下水利用规划层),专题要素(综合水文地质柱状图,水文地质剖面图) 四大类近30个要素图层。空间数据库主要采用MapGIS地理信息系统格式存储,形成了目前国内覆盖范围最广、包含信息最完整的区域水文地质图空间数据库成果,是地质领域全国性最重要的基础信息资源之一。
DataCite Commons 收录
中国行政区划数据
本项目为中国行政区划数据,包括省级、地级、县级、乡级和村级五级行政区划数据。数据来源于国家统计局,存储格式为sqlite3 db文件,支持直接使用数据库连接工具打开。
github 收录