HYDROLOGY

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.

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.

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

The CD-ROM contains 2 interactive versions.

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.

This CD-ROM contains a digital atlas of the countries of North America. 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.

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.

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

This CD-ROM contains a digital atlas of the countries of Europe. 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 tool by… Read more.