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User's Guide for the National Hydrography Dataset Plus (Nhdplus) High Resolution: U.S

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User's Guide for the National Hydrography Dataset Plus (Nhdplus) High Resolution: U.S National Geospatial Program User’s Guide for the National Hydrography Dataset Plus (NHDPlus) High Resolution Open-File Report 2019–1096 U.S. Department of the Interior U.S. Geological Survey Cover. Mount Washington, New Hampshire, as shown in the National Hydrography Dataset Plus (NHDPlus) High Resolution; streams are shown as blue lines, and the catchments are in yellow. User’s Guide for the National Hydrography Dataset Plus (NHDPlus) High Resolution By Richard B. Moore, Lucinda D. McKay, Alan H. Rea, Timothy R. Bondelid, Curtis V. Price, Thomas G. Dewald, and Craig M. Johnston National Geospatial Program Prepared in cooperation with the U.S. Environmental Protection Agency Open-File Report 2019–1096 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior DAVID BERNHARDT, Secretary U.S. Geological Survey James F. Reilly II, Director U.S. Geological Survey, Reston, Virginia: 2019 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit https://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov. This database, identified as the National Hydrography Dataset Plus High Resolution, has been approved for release by the U.S. Geological Survey (USGS). Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, the database is released on condition that neither the USGS nor the U.S. Government shall be held liable for any dam- ages resulting from its authorized or unauthorized use. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. Suggested citation: Moore, R.B., McKay, L.D., Rea, A.H., Bondelid, T.R., Price, C.V., Dewald, T.G., and Johnston, C.M., 2019, User's guide for the national hydrography dataset plus (NHDPlus) high resolution: U.S. Geological Survey Open-File Report 2019– 1096, 66 p., https://doi.org/10.3133/ofr20191096. ISSN 2331-1258 (online) iii Contents Introduction.....................................................................................................................................................1 Downloading and Organizing NHDPlus HR Data ......................................................................................2 NHDPlus HR Versioning ................................................................................................................................2 Structure of the NHDPlus HR Data .............................................................................................................2 Main Data Components of the NHDPlus HR and How They Fit Together .............................................8 Feature Classes of the NHDPlus HR ..................................................................................................8 Burn Components .................................................................................................................................8 NHDPlusBurnLineEvent Line Feature Class ............................................................................8 NHDPlusBurnWaterbody Polygon Feature Class .................................................................10 NHDPlusLandSea Polygon Feature Class .............................................................................10 NHDPlusSink Point Feature Class ...........................................................................................11 NHDPlusWall Line Feature Class ............................................................................................11 Raster Layers .......................................................................................................................................12 cat.tif .........................................................................................................................................12 catseed.tif....................................................................................................................................12 elev_cm.tif ...................................................................................................................................12 hydrodem.tif ................................................................................................................................12 fac.tif .........................................................................................................................................12 fdr.tif .........................................................................................................................................12 fdroverland.tif .............................................................................................................................13 filldepth.tif....................................................................................................................................13 shdrelief.jp2.................................................................................................................................13 swnet.tif .......................................................................................................................................13 NHDPlus HR Tables ............................................................................................................................13 NHDPlusFlow Table ...................................................................................................................13 NHDPlusDivFracMP Table ........................................................................................................15 NHDPlusMegaDiv Table ...........................................................................................................15 NHDPlusFlowlineVAA Table .....................................................................................................16 NHDPlusEROMMA Table ..........................................................................................................18 NHDPlusEROMQAMA Table ....................................................................................................20 NHDPlusEROMQARpt Table .....................................................................................................21 NHDPlusIncrROMA Table .........................................................................................................21 NHDPlusIncrLat Table ...............................................................................................................22 Annual and Monthly Precipitation ...................................................................................................22 Annual and Monthly Temperature ...................................................................................................23 NHDPlusIncrTempMA and NHDPlusIncrTempMMmm Tables ..........................................23 NHDPlusNHDPlusIDGridCode Table .......................................................................................24 National Datasets ...............................................................................................................................25 NHDPlusHRGlobalData.gdb\NHDPlusBoundaryUnit Feature Class .................................25 NHDPlusHRGlobalData.gdb\NHDPlusGage Feature Class .................................................26 NHDPlus Data Domains .....................................................................................................................27 iv Concepts for Understanding and Using NHDPlus HR ...........................................................................28 NHDPlus HR Unique Feature Identifiers .........................................................................................28 NHDPlus HR and Divergences .........................................................................................................28 Total Upstream Accumulation and Divergence-Routed Accumulation .....................................30 Understanding NHDPlus Slope ........................................................................................................31 Finding the Upstream Inflows to an NHDPlus HR VPU .................................................................31 Finding All FlowlinesThat Are Immediately Tributary to a Reach of River ................................31 Working With Main Networks and Isolated Networks ................................................................31 Differences Between Catchment Boundaries and WBD Boundaries for 12-Digit Hydrologic Unit Codes ..........................................................................................................32 NHDFlowline Features With and Without Catchments ................................................................37 Using the NHDPlus Value-Added Attributes for Nonnavigation Tasks ......................................38 Example 1. Using LevelPathI To Generalize the Stream Network Based on Stream Length ...............................................................................................................38 Example 2. Selecting an Individual River or Terminal River
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