NASA Socioeconomic Data and Applications Center (SEDAC) – Hosted by CIESIN at Columbia University
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Global Roads Open Access Data Set (gROADS), v1 (1980 – 2010)

Global Roads

To provide an open access, well documented global data set of roads between settlements using a consistent data model (UNSDI-T v.2) which is, to the extent possible, topologically integrated.

Reservoirs, v1.01 (2011)

Global Reservoir and Dam (GRanD), v1

To provide a geographically explicit and reliable database of reservoirs for the scientific community.

Dams, v1.01 (2011)

Global Reservoir and Dam (GRanD), v1

To provide a geographically explicit and reliable database of dams for the scientific community.

CODATA Catalog of Roads, v1 (1976 – 2008)

Global Roads

To provide documentation on roads data sets that are potential candidates for inclusion in the Global Roads Open Access Data Set (gROADS), and which may be useful to others searching for data on road infrastructure.

China Maps Bibliographic Database, v1 (1765 – 1994)

China Dimensions

To provide a database of public China maps, searchable by location, scale, content, publisher, and publication date.

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