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This North American Environmental Atlas dataset displays the coastline, linear hydrographic features (major rivers, streams, and canals), and area hydrographic features (major lakes and reservoirs) of North America at a reference spatial scale of 1:1,000,000.
25 sty 2019 · We overlaid the reconstructed historical human population data 24 with maps of both major rivers (Fig. 1a) and groundwater accessibility (Fig. 1b) (see Methods) in order to examine the...
28 kwi 2023 · With over 32 million features, the NHDPlus High Resolution provides a detailed view of the nation’s waters, complete with a rich set of attributes that enable you to create your own maps and use in analysis, filter, customize symbology, and configure pop-ups.
15 kwi 2020 · Add An Atlas of North American Rivers to the list of Daniel Huffman’s long-unfinished projects that suddenly got finished lately. It’s a 48-page PDF of diagrammatic maps of North American river systems, from Alaska to Guatemala.
Surface water, like rivers and lakes, as well as groundwater have flows that change all the time. The USGS maps and measures water to help understand the environment and how water moves through it. Maps are important tools in understanding water resources, conditions, and issues.
3 wrz 2024 · HUC Navigation | Identify upstream or downstream 12-digit HUCs within the stream network from any given point in the conterminous US. Elevation Profile | View the elevation profile of a selected line segment. Time Series Viewer | View historic and future environmental variables from 1950 - 2099 in a time-enabled animated map.
The U.S. Geological Survey's Streamer application allows users to explore where their surface water comes from and where it flows to. By clicking on any major stream or river, the user can trace it upstream to its source(s) or downstream to where it joins a larger river or empties into the ocean.
