Harvey Basemap Data Collections

This collection contains map data often used as base layers for hydrologic and geographic analysis, organized by these categories:
- Addresses and Boundaries (Texas address points, counties, Councils of Government boundaries, Texas Dept of Public Safety districts and regions)
- Hydrology for the Harvey study area across southeast Texas, Louisiana, Mississippi and Arkansas (streams, gages, dams, catchments, watersheds)
- Transportation (Texas roads, railways, bridges, low water crossings)
- Social Vulnerability Index (SVI) developed by the U.S. Centers for Disease Control (CDC). This is used by the emergency response community to anticipate areas where social support systems are weaker, and residents may be more likely to need help.

These data layers generally date to 2015-2016, so could be considered reasonably representative of the base layers at the time of Hurricane Harvey.

Note on November 2023 updates: due to numerous updates among the resources linked below, this collection has been updated to point to the most recent resources.

本数据集汇集了常用于水文和地理分析的地图数据，并按以下类别组织：
- 地址与边界（德克萨斯州地址点、县、政府委员会边界、德克萨斯州公共安全部区域和地区）
- 哈维研究区域的 hydrology 数据（涵盖东南德克萨斯州、路易斯安那州、密西西比州和阿肯色州，包括河流、水位计、水坝、集水区和流域）
- 交通（德克萨斯州道路、铁路、桥梁、低水位交叉点）
- 由美国疾病控制与预防中心（CDC）开发的社交脆弱性指数（SVI）。该指数被紧急响应社区用于预测社会支持系统较弱区域，居民可能更需援助的区域。
这些数据层一般截止至2015-2016年，因此可以合理地视为哈维飓风发生时的基础层。
关于2023年11月的更新说明：由于以下链接中的资源进行了多次更新，本数据集已更新，指向最新资源。