Metadata
also available as
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