MS_NHDFlowlines_May2022

Shapefile

Tags

FWHydrography, Hydrography, Stream / River, Lake / Pond, Canal / Ditch, Reservoir, Spring / Seep, Swamp / Marsh, Artificial Path, Reach Code


Summary

The NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses establish the locations of these entities relative to one another within the NHD surface water drainage network, much like addresses on streets. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these water-related entities--and any associated information about them--can be analyzed using software tools ranging from spreadsheets to geographic information systems (GIS). GIS can also be used to combine NHD- based network analysis with other data layers, such as soils, land use and population, to help understand and display their respective effects upon one another. Furthermore, because the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all.

Description

The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.


** MARIS staff clipped the May 7, 2022 Mississippi NHD geodatabase flowline feature with a 100 meter buffer around the state border to create this shapefile **

Credits

USGS, MARIS

Use limitations

None. Acknowledgment of the originating agencies would be appreciated in products derived from these data.


Extent


West

-91.736542

East

-88.094807


North

35.006344

South

30.162422

Scale Range


Maximum (zoomed in)

1:5,000

Minimum (zoomed out)

1:150,000,000


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ArcGIS metadata properties

METADATA FORMAT ArcGIS 1.0

METADATA STYLE ISO 19139 Metadata Implementation Specification

STANDARD OR PROFILE USED TO EDIT METADATA ISO19139


CREATED IN ARCGIS FOR THE ITEM 2022-05-09 14:30:22

LAST MODIFIED IN ARCGIS FOR THE ITEM 2022-05-10 75:31:20


Automatic updates

HAVE BEEN PERFORMED Yes

LAST UPDATE 2022-05-10 07:51:39


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Metadata Contacts ►


Metadata contact

INDIVIDUAL'S NAME USGS

ORGANIZATION'S NAME USGS NHD

CONTACT'S ROLE originator


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Thumbnail and Enclosures ►


Thumbnail

THUMBNAIL TYPE JPG


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FGDC Metadata (read-only) ▼


Detailed Description Entity Type

ENTITY TYPE LABEL MS_NHDFlowlines_May2022


Attribute

ATTRIBUTE LABEL Shape

Attribute Definition

Feature geometry.

ATTRIBUTE DEFINITION SOURCE ESRI

Attribute Domain Values Unrepresentable Domain

Coordinates defining the features.


Attribute

ATTRIBUTE LABEL FDate


Attribute

ATTRIBUTE LABEL Resolution


Attribute

ATTRIBUTE LABEL GNIS_ID


Attribute

ATTRIBUTE LABEL GNIS_Name


ATTRIBUTE ATTRIBUTE LABEL LengthKM


Attribute

ATTRIBUTE LABEL ReachCode


ATTRIBUTE ATTRIBUTE LABEL FID ATTRIBUTE DEFINITION

Internal feature number.

ATTRIBUTE DEFINITION SOURCE Esri

Attribute Domain Values Unrepresentable Domain

Sequential unique whole numbers that are automatically generated.


ATTRIBUTE ATTRIBUTE LABEL FlowDir


Attribute

ATTRIBUTE LABEL Permanent_


ATTRIBUTE ATTRIBUTE LABEL FType


ATTRIBUTE ATTRIBUTE LABEL FCode


ATTRIBUTE ATTRIBUTE LABEL WBArea_Per


ATTRIBUTE ATTRIBUTE LABEL MainPath


Attribute

ATTRIBUTE LABEL InNetwork


Attribute

ATTRIBUTE LABEL Visibility


Attribute

ATTRIBUTE LABEL Shape_Leng


Detailed Description Entity Type

ENTITY TYPE LABEL NHDFlowlineToMeta


Overview Description Entity and Attribute Overview

The National Hydrography Dataset is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of water, paths through which water flows, and related entities. The information encoded about features includes a feature date, classification by type, other characteristics, a unique common identifier, the feature length or area, and (rarely) elevation of the surface of water pools and a description of the stage of the elevation. For reaches, encoded information includes a reach code. Names and their identifiers in the Geographic Names Information System, are assigned to most feature types. The direction of flow

is encoded for networked features. The data also contains relations that encode metadata, and information that supports the exchange of future updates and improvements to the data. The names and definitions of all feature types, characteristics, and values are in the Standards for National Hydrography Dataset: Reston, Virginia, U.S. Geological Survey, 1999. The document is available online through http://mapping.usgs.gov/standards/.

Entity and Attribute Detail Citation

The names and definitions of all feature types, characteristics, and values are in U.S. Geological Survey, 1999, Standards for National Hydrography Dataset High Resolution: Reston, Virginia, U.S. Geological Survey. The document is available online through http://mapping.usgs.gov/standards/. Information about tables and fields in the data are available from the user documentation for the National Hydrography Dataset at http://nhd.usgs.gov. The National Map - Hydrography Fact Sheet is also available at: http://erg.usgs.gov/isb/pubs/factsheets/fs06002.html.


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