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snippet:
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This is a viewing service for Aquatic Stream Segments. |
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summary:
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This is a viewing service for Aquatic Stream Segments. |
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accessInformation:
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Missouri Resource Assessment Partnerships. Missouri Department of Natural Resources |
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NaN |
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[] |
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description:
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This data was created as part of the Missouri Aquatic Gap Project. This coverage contains selected arcs from the 1:100,000 National Hydrography Dataset (NHD) that was developed by the USGS and EPA. The selected arcs represent the centerlines of wide streams, impoundments, reservoirs, and wetlands as well as the segments of single line streams. An Arc/Info macro was run on the arc segments to pull select attributes from various NHD tables and attach them directly to the arc component. In many instances the NHD networks were edited and enhanced. This includes fixing areas in the 1:100,000 scale NHD that were mapped with lower stream densities than most of the nation. These areas correspond to specific 1:100,000 scale topographic maps with the same problem and can be identified by viewing the stream networks across fairly large regions as evidenced by the rectangular nature of these low density area boundaries. These areas present problems when attempting get an accurate stream order because much of the contributing network is missing. We fixed these areas of lower stream density by generating the "missing streams" using a DEM. These streams are not of the same scale or resolution as the rest of the networks. The resulting enhanced stream networks were classified into distinct stream valley segment types according to a number of variables including temperature, stream size, flow, geology, and relative gradient. Additional variables are included in the attribute table that were not used in creating the valley segment types. Because of how processing was accomplished only the primary channel interconnected stream networks are considered fully classified. In addition, the Missouri and Mississippi Rivers are not fully classified. |
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licenseInfo:
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<DIV STYLE="text-align:Left;font-size:12pt"><DIV><DIV><P><SPAN STYLE="font-weight:bold;">For public use: </SPAN><SPAN>Although these data have been processed successfully on a computer system at the Missouri Resource Assessment Partnership (MoRAP), no warranty expressed or implied is made regarding accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The Missouri Resource Assessment Partnership (MoRAP), the University of Missouri, and/or the US Geological Survey Biological Resources Division Gap Analysis Program shall not be held liable for any data inaccuracy or for improper or incorrect use of the data described and/or contained herein.</SPAN></P></DIV></DIV></DIV> |
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catalogPath:
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title:
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Aquatic Stream Segments |
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tags:
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["MoRAP","MoDNR","Aquatic","Stream segments"] |
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en-US |
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NaN |
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