National Hydrography Dataset Plus - NHDPlus

Metadata also available as

Metadata:


Identification_Information:

Citation:

Citation_Information:

Originator:

U.S. Environmental Protection Agency (USEPA) and the U.S. Geological Survey (USGS).

Publication_Date: 2012

Title: National Hydrography Dataset Plus - NHDPlus

Edition: 2.10

Geospatial_Data_Presentation_Form: vector digital data, raster digital data, tabular digital data

Online_Linkage: <http://www.epa.gov/waters>

Description:

Abstract:

This high-level metadata data document will be supplemented with detailed regional metadata at a later date.
The NHDPlusV2 is an integrated suite of application-ready geospatial data sets that incorporate many of the best features of the National Hydrography Dataset (NHD) and the National Elevation Dataset (NED). Interest in estimating stream flow volume and velocity to support pollutant fate-and-transport modeling was the driver behind the joint USEPA and USGS effort to develop the initial NHDPlus, referenced in this document as NHDPlusV1. NHDPlusV1 has been used in a wide variety of applications since its initial release in the fall of 2006. This widespread positive response prompted the multi-agency NHDPlus team to develop NHDPlus Version 2 (NHDPlusV2). The NHDPlusV2 includes a stream network (based on the NHD), improved networking, naming, and "value-added attributes" (VAA's). NHDPlusV2 also includes elevation-derived catchments (drainage areas) produced using a drainage enforcement technique first broadly applied in New England, and thus dubbed "The New-England Method". This technique involves "burning-in" the NHD network and building "walls" using the national Watershed Boundary Dataset (WBD). The hydro-enforced digital elevation model (DEM) is used to produce hydrologic derivatives that agree with the NHD and WBD. An interdisciplinary team from the USGS, USEPA and contractors, has found this method to produce the best quality NHD catchments using an automated process. The VAAs include greatly enhanced capabilities for upstream and downstream navigation, analysis and modeling. Examples include: retrieve all flowlines (predominantly confluence-to-confluence stream segments) and catchments upstream of a given flowline using queries rather than by slower flowline-by-flowline navigation; retrieve flowlines by stream order; select a stream level path sorted in hydrologic order for stream profile mapping, analysis and plotting; and, calculate cumulative catchment attributes using streamlined VAA hydrologic sequencing routing attributes. The VAAs include results from the use of these cumulative routing techniques, including cumulative drainage areas, precipitation, temperature, and runoff distributions. Several of these cumulative attributes are used to estimate mean annual flow and velocity as part of the VAAs. NHDPlusV2 in CONUS contains a snapshot (2012) of the 1:100,000-scale NHD that has been extensively improved over the snapshot used in NHDPlusV1. These updates have not been stored in the central NHD repository at USGS. NHDPlusV2 in the islands is basin on a 2014/2015 snapshot of the 1:24,000 NHD. NHDPlusV2 users may not make updates to the NHD portions of NHDPlusV2 with the intent of sending these updates back to the USGS. Updates to the 1:100,000-scale NHD snapshot should be sent to the USEPA as the primary steward. Updates to the 1:24,000-scale NHD shapshot should be sent to the USGS. Purpose: The geospatial data sets included in NHDPlusV2 are intended to support a variety of water-related applications. They already have been used in an application to develop estimates of mean annual streamflow and velocity for each NHDFlowline feature in the conterminous United States. The results of these analyses are included with the NHDPlusV2 data. NHDPlusV2 serves as the sample frame for the stream and lake surveys conducted by the USEPA under the National Aquatic Resources Surveys program. A water-quality model developed by the U.S. Geological Survey (USGS) called SPARROW (Spatially Referenced Regressions on Watershed Attributes), can utilizes the NHDPlusV2 network functionality to track the downstream transport of nutrients, sediments, or other substances. NHDPlusV2 water bodies and estimates of streamflow and velocity are used in SPARROW to identify reservoir retention and in-stream loss factors. NHDPlusV2 climatic and land surface attributes can be used in SPARROW to identify potential factors in the delivery of nutrients from the land surface to streams. NHDPlusV2 data is also being used in select areas for a USGS Web-based application, called StreamStats. StreamStats provides tools to interactively select any point in the implemented areas, delineate watersheds, and to obtain streamflow and watershed characteristics for the selected point. NHDPlusV2 has been designed to accommodate many users' needs for future applications. NHDPlusV2 provides the framework and tools necessary to customize the behavior of the network relationships as well as building upon the attribute database, for which the user can assign their own data to the network.

Purpose:

The geospatial data sets included in NHDPlusV2 are intended to support a variety of water-related applications. They already have been used in an application to develop estimates of mean annual streamflow and velocity for each NHDFlowline feature in the conterminous United States. The results of these analyses are included with the NHDPlusV2 data. A water-quality model developed by the U.S. Geological Survey (USGS) called SPARROW (Spatially Referenced Regressions on Watershed Attributes), can utilize the NHDPlusV2 network functionality to track the downstream transport of nutrients, sediments, or other substances. NHDPlusV2 water bodies and estimates of streamflow and velocity are used in SPARROW to identify reservoir retention and in-stream loss factors. NHDPlusV2 climatic and land surface attributes can be used in SPARROW to identify potential factors in the delivery of nutrients from the land surface to streams. NHDPlusV2 data is also being used in select areas for a USGS Web-based application, called StreamStats. StreamStats provides tools to interactively select any point in the implemented areas, delineate watersheds, and to obtain streamflow and watershed characteristics for the selected point. NHDPlusV2 has been designed to accommodate many users' needs for future applications. NHDPlusV2 provides the framework and tools necessary to customize the behavior of the network relationships as well as building upon the attribute database, for which the user can assign their own data to the network.

Supplemental_Information: For more information, refer to the NHDPlusV2 Users Guide.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2012

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -170.9

East_Bounding_Coordinate: 145.9

North_Bounding_Coordinate: 50.7

South_Bounding_Coordinate: -14.4

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: Stream / River

Theme_Keyword: Lake / Pond

Theme_Keyword: Canal / Ditch

Theme_Keyword: Reservoir

Theme_Keyword: Spring / Seep

Theme_Keyword: Swamp / Marsh

Theme_Keyword: Artificial Path

Theme_Keyword: Reach

Theme_Keyword: Watershed

Theme_Keyword: Catchment

Theme_Keyword: EARTH SCIENCE

Theme_Keyword: Land Surface

Theme_Keyword: Topography

Theme_Keyword: Cartography

Theme_Keyword: GEODATA

Theme_Keyword: GIS

Theme_Keyword: USGS

Theme_Keyword: EPA

Theme_Keyword: Elevation

Theme_Keyword: National Elevation Dataset

Theme_Keyword: NED

Theme_Keyword: National Hydrography Dataset

Theme_Keyword: NHD

Theme_Keyword: NHDPlus

Theme_Keyword: Stream flow

Theme_Keyword: Stream velocity

Theme_Keyword: Spatially Referenced Regressions on Watershed Attributes

Theme_Keyword: SPARROW

Theme_Keyword: StreamStats

Theme_Keyword: Water-quality

Theme_Keyword: Hydrologic modeling

Theme_Keyword: River Coding Systems

Theme_Keyword: Hydrography

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: inlandWaters

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: United States of America

Place_Keyword: United States

Place_Keyword: USA

Place_Keyword: Alabama

Place_Keyword: American Samoa

Place_Keyword: Arizona

Place_Keyword: Arkansas

Place_Keyword: California

Place_Keyword: Colorado

Place_Keyword: Connecticut

Place_Keyword: Delaware

Place_Keyword: District of Columbia

Place_Keyword: Florida

Place_Keyword: Georgia

Place_Keyword: Guam

Place_Keyword: Idaho

Place_Keyword: Hawaii

Place_Keyword: Illinois

Place_Keyword: Indiana

Place_Keyword: Iowa

Place_Keyword: Kansas

Place_Keyword: Kentucky

Place_Keyword: Louisiana

Place_Keyword: Maine

Place_Keyword: Maryland

Place_Keyword: Massachusetts

Place_Keyword: Michigan

Place_Keyword: Minnesota

Place_Keyword: Mississippi

Place_Keyword: Missouri

Place_Keyword: Montana

Place_Keyword: Nebraska

Place_Keyword: Nevada

Place_Keyword: New Hampshire

Place_Keyword: New Jersey

Place_Keyword: New Mexico

Place_Keyword: New York

Place_Keyword: North Carolina

Place_Keyword: North Dakota

Place_Keyword: Northern Mariana

Place_Keyword: Ohio

Place_Keyword: Oklahoma

Place_Keyword: Oregon

Place_Keyword: Pennsylvania

Place_Keyword: Puerto Rico

Place_Keyword: Rhode Island

Place_Keyword: South Carolina

Place_Keyword: South Dakota

Place_Keyword: Tennessee

Place_Keyword: Texas

Place_Keyword: US Virgin Islands

Place_Keyword: Utah

Place_Keyword: Vermont

Place_Keyword: Virginia

Place_Keyword: Washington

Place_Keyword: West Virginia

Place_Keyword: Wisconsin

Place_Keyword: Wyoming

Access_Constraints: None.

Use_Constraints: None.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Environmental Protection Agency

Contact_Address:

Address_Type: mailing address

Address: see email address

City: Washington

State_or_Province: D.C.

Postal_Code: 20460

Contact_Voice_Telephone: see email address

Contact_Electronic_Mail_Address: waters_support@epa.gov

Data_Set_Credit:

Acknowledgement of the originating agencies (USEPA and USGS) would be appreciated in products derived from these data.

Native_Data_Set_Environment: Microsoft Windows Version 7.0; ESRI ArcGIS 9.3.1


Data_Quality_Information:

Logical_Consistency_Report:

Data were processed with ArcGIS 9.3.1, and should not contain any topological errors.

Completeness_Report:

Data are complete for the conterminous United States. See release notes by Vector Processing Unit (VPU) for additional information.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Geological Survey (USGS) and the U.S. Environmental Protection Agency (USEPA)

Publication_Date: 2012

Title: National Hydrography Dataset (NHD) Medium Resolution

Edition: none

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: <http://nhd.usgs.gov>

Source_Scale_Denominator: 100000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2012

Source_Currentness_Reference:

The source NHD is a snapshot of the dataset accessed on 4/30/2010 and subsequently updated from 2010 to 2012.

Source_Citation_Abbreviation: NHD Medium Resolution

Source_Contribution:

A snapshot of the CONUS NHD was used as the baseline framework from which enhancements to the network were built upon. Enhancements include feature names, network connectivity and network flow relationships. This enhanced NHD version was then used in conjunction with the NED, and WBD to create a hydro-enforced DEM, for generation of the catchment Grid/shapefile, and flow direction/accumulation Grids. The enhanced NHD was used to compute and assign flowline Value Added Attributes (VAAs) to this network.

Edition: none

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Geological Survey (USGS)

Publication_Date: 2014-2015

Title: National Hydrography Dataset (NHD) High Resolution

Edition: none

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: <http://nhd.usgs.gov>

Source_Scale_Denominator: 24000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2014

Source_Currentness_Reference:

The source NHD is a snapshot of the dataset accessed on September 2014 and April 2015.

Source_Citation_Abbreviation: NHD High Resolution

Source_Contribution:

A snapshot of the NHD was used as the baseline framework for the NHDPlusV2 in the islands. The NHD was used in conjunction with the NED, and WBD to create a hydro-enforced DEM, for generation of the catchment Grid/shapefile, and flow direction/accumulation Grids. The enhanced NHD was used to compute and assign flowline Value Added Attributes (VAAs) to this network.

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey (USGS), Denver

Publication_Date: 2011

Title: National Elevation Dataset (NED)

Geospatial_Data_Presentation_Form: raster digital data

Publication_Information:

Publication_Place: Sioux Falls, SD

Publisher: U.S. Geological Survey

Other_Citation_Details:

Multiple snapshots of the NED were obtained and used during NHDPlusV2 production. See the snapshot dates for each NHDPlusV2 Vector Processing Unit (VPU) in this Source Citation.

Online_Linkage: <http://ned.usgs.gov/>

Source_Scale_Denominator: 24000

Type_of_Source_Media: disc

Source_Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 201008

Single_Date/Time:

Calendar_Date: 201102

Single_Date/Time:

Calendar_Date: 201106

Single_Date/Time:

Calendar_Date: 201108

Single_Date/Time:

Calendar_Date: 201112

Source_Currentness_Reference: publication dates

Source_Citation_Abbreviation: NED

Source_Contribution:

NED data used in combination with NHD and WBD to create a hydro-enforced, NHDPlusV2 Catchments, surface flow direction and accumulation Grids. Stream elevations from NED which were used to help derive stream slope and stream velocity. NED snapshot dates used were as follows: August 2010 - VPU04 February 2011 - VPUs 05, 06 June 2011 - VPU 17 August 2011 - VPUs 07, 10L, 10U, 11, 18 December 2011 - VPUs 01, 02, 03N, 03S, 03W, 08, 09, 12, 13, 14, 15, 16 January 28, 2014 - VPUs 20, 21, 22MA February 10, 2014 - VPU 22AS February 19, 2014 - VPU 22GU

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Natural Resources Conservation Service (NRCS) and the U.S. Geological Survey (USGS)

Publication_Date: 2012

Title: Watershed Boundary Dataset (WBD)

Geospatial_Data_Presentation_Form: vector digital data

Other_Citation_Details:

Multiple snapshots of the WBD were obtained and used during NHDPlusV2 production. See the snapshot dates for each NHDPlusV2 Vector Processing Unit (VPU) in this Source Citation.

Online_Linkage:

<http://www.nrcs.usda.gov/wps/portal/nrcs/main/national/water/watersheds/dataset>

Source_Scale_Denominator: 24000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20100831

Single_Date/Time:

Calendar_Date: 20110310

Single_Date/Time:

Calendar_Date: 20110714

Single_Date/Time:

Calendar_Date: 20110916

Single_Date/Time:

Calendar_Date: 20111007

Single_Date/Time:

Calendar_Date: 20111114

Single_Date/Time:

Calendar_Date: 20111202

Single_Date/Time:

Calendar_Date: 20111221

Single_Date/Time:

Calendar_Date: 20120201

Source_Currentness_Reference: publication dates

Source_Citation_Abbreviation: WBD

Source_Contribution:

12-digit Hydrologic Unit (HUC 12) divides from the Watershed Boundary Dataset (WBD) were used as ridgeline enforcment input in a process called "walling" in the production of hydro-enforced DEMs. Closed basin designations, from the HUC 12 polygon data were used to impose "sinks" in the hydro-enforced DEMs. These DEMs are the source data from which NHDPlusV2 Catchments are delineated from. Catchments with corresponding boundaries in the WBD generally agree with the WBD to within one or two 30-m grid cells. Some larger differences between catchment boundaries and WBD boundaries do exist, however. NHDPlusV2 Flow Direction and Accumulation Grids are hydrologic derivative products of the hydro-enforced DEMs.
Dates of WBD snapshots used were as follows: August 31, 2010 - VPU 04 March 10, 2011 - VPUs 05, 06 July 14, 2011 - VPU 17 September 16, 2011 - VPU 10L October 7, 2011 - VPU 10U November 14, 2011 - VPUs 07, 11 December 2, 2011- VPU 18 December 21, 2011 - VPUs 09, 12 February 1, 2012 - VPUs 01, 02, 03N, 03S, 03W, 08, 13, 14, 15, 16 October 2014 - VPUs 20, 21 April 2015 - VPUs 22AS, 22GU, 22MP
The February 1, 2012 WBD snapshot used to migrate NHD medium resolution Reachcode assignment to agree with WBD HUC 8 codes. Reachcodes in VPUs 20, 21, 22AS, 22GU, and 22MP agree with their WBDSnapshots.

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: Various

Title: USGS Streamgages Linked to the Medium Resolution NHD

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Reston, Va

Publisher: U.S. Geological Survey

Online_Linkage: <https://s3.amazonaws.com/nhdplus/NHDPlusV21/Documentation/Metadata/NHDPlusV2_GageLoc_Metadata.htm>

Source_Scale_Denominator: 100000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: Various

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: GageLoc

Source_Contribution:

The Gageloc feature class was used for the QAQC of the estimates of mean annual stream flow and also in a gage flow adjustment process applied to the final mean annual stream flow estimates.


Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Environmental Protection Agency

Contact_Address:

Address_Type: mailing address

Address: not available, see email address

City: Washington

State_or_Province: D.C.

Postal_Code: 20460

Contact_Voice_Telephone: not available, see email address

Contact_Electronic_Mail_Address: waters_support@epa.gov

Distribution_Liability:

Although this data set has been used by the U.S. Government, no warranty expressed or implied is made by the U.S. Government as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Government in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ESRI Workspace

File_Decompression_Technique: .7z

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://www.epa.gov/waters>

Access_Instructions: <http://www.epa.gov/waters>

Fees: none


Metadata_Reference_Information:

Metadata_Date: 20120611

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Environmental Protection Agency

Contact_Address:

Address_Type: mailing address

Address: not available, see email address

City: Washington

State_or_Province: D.C.

Postal_Code: 20460

Contact_Voice_Telephone: not available, see email address

Contact_Electronic_Mail_Address: waters_support@epa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998


Generated by mp version 2.9.6 on Tue Jun 19 12:16:23 2012

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