HYDROLOGY

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comprehensive road network file; roads, streets, etc.

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This product is a globally seamless adaptation of the U.S. Government's Digital Chart of the World (Vector Smart Map Level 0 [VMap0], Edition 5) produced by Global Mapping International in ESRI shapefile format, with added country polygons and… Read more.

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Each year, Environment Canada produces a National HYDAT CD-ROM which provides rapid access to a stand alone version of the National Water Data Archive. This large database contains daily, monthly, and/or instantaneous information for streamflow,… Read more.

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Note that some layers are free to download. Others must be requested through the Map and Data Library. All roads can be found for public use at this url http://gis.ny.gov/gisdata/inventories/details.cfm?DSID=932

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The Hydrological Atlas of Germany (HAD) is based on nation-wide comparable data for the whole of Germany using up to date hydrological models and regionalisation methods. It contains the chapters: hydrometeorology, surface waters, soil water,… Read more.

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The CD-ROM contains instructions to help you start using Arc Hydro, plus a set of tools that populate the attributes of the features in the data framework, interconnect features in different data layers, support hydrologic analysis, and more. The CD… Read more.

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The CD-ROM contains 2 interactive versions.

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Comprehensive general atlas of the World. Contains general data as well.

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This CD-ROM contains a digital atlas of the countries of North Eurasia. This atlas is part of a global database compiled from USGS and other data sources at a nominal scale of 1:1,000,000 and is intended as a regional-scale reference and analytical… Read more.