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Major Hydrography


Download Link: http://data.nconemap.gov/downloads/vector/hydromaj.zip
Abstract: The NC Center for Geographic Information and Analysis, developed this digital Major Hydrography data to enhance planning, siting and impact analysis in areas directly affecting surface waters consisting of streams and rivers, lakes, reservoirs, and shorelines. The data is a subset of the 1:24,000-scale detailed hydrography data. This file is updated as changes occur.
Purpose: This data was created to assist governmental agencies and others in making resource management decisions through the use of a Geographic Information System (GIS) where information on general hydrographic features is needed.
Supplemental Information: system filename: hydromaj file size = 6.40 mb Revisions and updates to this layer include: 3.) Previous 1:100,000-scale version was used to select hydro features from 1:24,000-scale coverage to create a new subset of the detailed hydro for purposes of larger scale mapping and making additional attributes available in the major hydrography coverage. Arcs and polygons were created as major_hydro_arcs.shp and major_hydro_polys.shp. In the shapefile version of the polygons, label = 216 was excluded (water offshore) to make the shapefile more suitable for cartographic purposes. 2.) filename: hydromaj299 The February 9, 1999 updates include: a.) Projecting the data from NAD27 datum, State Plane projection, units of measure feet TO: NAD83 DATUM, State Plane PROJECTION, UNITS OF MEASURE METERS. This was done to comply with the NC Geographic Information Coordinating Council's "Statement of Direction for North Carolina Corporate Geographic Database Horizontal Reference, Datum and Unit of Measure". This reprojecting was done in various ways depending on the data type and content. Vector data was projected using the 'project' command in ESRI's Arc software and topology was cleaned and built based on coverage needs. Raster data was projected using ESRI's Grid module and various steps as applicable. b.) Replaced the lake boundary for Falls Lake. Corrected lake boundary digitized from US Army Corps of Engineers 51.5 foot contour overlay that was transferred onto 1:24,000-scale topo sheets. (The original lake contours were surveyed incorrectly and the lake level has since been raised to the correct 251.5 ft level.) c.) Added more detailed stream annotation (anno level 1 - primary streams; anno level 2 - secondary streams). 1.) filename: hydromaj997 The original version was dated September 1997. (perviousl named majhydro) Any previous versions were not offical database releases.
Publication Date: 20020702
Originator: NC Dept. of Information Technology, Government Data Analytics Center, Center for Geographic Information and Analysis
Publisher: NC Center for Geographic Information and Analysis
Online Linkage: http://www.nconemap.gov
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 199709
Ending Date: 19990209
Currentness Reference: Data creation and revision dates
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -84.385435
East Bounding Coordinate: -75.425187
North Bounding Coordinate: 36.596914
South Bounding Coordinate: 33.740263
Contact Organization: NCCGIA
Contact Person: David Giordano
Contact Electronic Mail Address: dataq@its.nc.gov
Contact Voice Telephone: 919-754-6580
Contact Organization: NCCGIA
Grid Coordinate System Name: State Plane Coordinate System 1983
Horizontal Datum Name: North American Datum of 1983
Planar Distance Units: meters
Ellipsoid Name: Geodetic Reference System 80
Attribute:
Attribute Label: COMMENT
Attribute Definition: Supplemental descriptive information
Attribute Definition Source: NC Center for Geographic Information and Analysis
Attribute Domain Values:
Unrepresentable Domain: Varies in length and number of words
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: SHAPE
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute Measurement Frequency: non planned
Attribute:
Attribute Label: PERIMETER
Attribute Definition: Total perimeter length in coverage units
Attribute Definition Source: Software computed
Attribute Domain Values:
Unrepresentable Domain: Variable
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: TEST_
Attribute Definition: Polygon internal identification number
Attribute Definition Source: Software computed
Attribute Domain Values:
Unrepresentable Domain: Software computed
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: TEST_ID
Attribute Definition: Polygon internal identification number
Attribute Definition Source: Software computed
Attribute Domain Values:
Unrepresentable Domain: Software computed
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: MINOR1
Attribute Definition: DLG standard code for feature
Attribute Definition Source: US Geological Survey
Attribute Domain Values:
Codeset Domain:
Codeset Name: Standards for Digital Line Graphs
Codeset Source: US Geological Survey, NMD
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: MINOR2
Attribute Definition: DLG standard code for feature
Attribute Definition Source: US Geological Survey
Attribute Domain Values:
Codeset Domain:
Codeset Name: Standards for Digital Line Graphs
Codeset Source: US Geological Survey, NMD
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: STREAM_NAM
Attribute Definition: Stream name as listed in DWQ Classification Guide
Attribute Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Unrepresentable Domain: Names of streams vary in length and number of words.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: WATERBODY
Attribute Definition: Waterbody name as listed in DWQ Classification Guide
Attribute Definition Source: NC DEQ-Div. Of Water Quality, Water Quality Section
Attribute Domain Values:
Unrepresentable Domain: Names of streams vary in length and number of words.
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: RIV_BASIN
Attribute Definition: River basin
Attribute Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: TAR-PAMLICO
Enumerated Domain Value Definition: Feature in the Tar-Pamlico river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: CAPE FEAR
Enumerated Domain Value Definition: Feature in the Cape Fear river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: CHOWAN
Enumerated Domain Value Definition: Feature in the Chowan river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: FRENCH BROAD
Enumerated Domain Value Definition: Feature in the French Broad river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: NEUSE
Enumerated Domain Value Definition: Feature in the Neuse river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: NEW
Enumerated Domain Value Definition: Feature in the New river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: PASQUOTANK
Enumerated Domain Value Definition: Feature in the Pasquotank river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: WHITE OAK
Enumerated Domain Value Definition: Feature in the White Oak river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: BROAD
Enumerated Domain Value Definition: Feature in the Broad river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: CATAWBA
Enumerated Domain Value Definition: Feature in the Catawba river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: LITTLE TENNESSEE
Enumerated Domain Value Definition: Feature in the Little Tennessee river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: HIWASSEE
Enumerated Domain Value Definition: Feature in the Hiwassee river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: SAVANNAH
Enumerated Domain Value Definition: Feature in the Savannah river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: YADKIN
Enumerated Domain Value Definition: Feature in the Yadkin river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: LUMBER
Enumerated Domain Value Definition: Feature in the Lumber river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: ROANOKE
Enumerated Domain Value Definition: Feature in the Roanoke river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: WATAUGA
Enumerated Domain Value Definition: Feature in the Watauga river basin
Enumerated Domain Value Definition Source: CGIA
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: SUBBASIN
Attribute Definition: Sub-basin number
Attribute Definition Source: NC DEQ-Div. Of Water Quality, Water Quality Section
Attribute Domain Values:
Unrepresentable Domain: Values vary in length and number of words.
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: CGIA_FMS
Attribute Definition: Internal feature maintenance status
Attribute Definition Source: NC CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 1
Enumerated Domain Value Definition: Feature not originally on 1:000,000 scale DLG base. Added to complete network for DEM stream system.
Enumerated Domain Value Definition Source: NC CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 2
Enumerated Domain Value Definition: Feature modified from original delineation
Enumerated Domain Value Definition Source: NC CGIA
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Other values to be determined
Enumerated Domain Value Definition: Other values not currently recorded
Enumerated Domain Value Definition Source: NC CGIA
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: DWQ_INDEX_
Attribute Definition: DWQ stream classification index number (ex: 9-53-1)
Attribute Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Unrepresentable Domain: Classification number used internally
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: DWQ_CLASS
Attribute Definition: DWQ stream classification (ex: WS-III)
Attribute Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: WS-I
Enumerated Domain Value Definition: Waters protected as water supplies which are in natural and undeveloped watersheds
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: WS-II
Enumerated Domain Value Definition: Waters protected as water supplies which are generally in predominantly undeveloped watersheds
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: WS-III
Enumerated Domain Value Definition: Waters protected as water supplies which are generally in low to moderately developed watersheds
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: WS-IV
Enumerated Domain Value Definition: Waters protected as water supplies which are generally in moderately to highly developed watersheds
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: WS-V
Enumerated Domain Value Definition: Waters protected as water supplies which are generally upstream and draining to Class WS-IV waters
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: B
Enumerated Domain Value Definition: Primary recreation and any other usage specified by the "C" classification
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: C
Enumerated Domain Value Definition: Aquatic life propagation and survival, fishing, wildlife, secondary recreation, and agriculture
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: SA
Enumerated Domain Value Definition: Shellfishing for market purposes and any other usage specified by the "SB" and "SC" classification
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: SB
Enumerated Domain Value Definition: Primary recreation and any other usage specified by the "SC" classification
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: SC
Enumerated Domain Value Definition: Aquatic life propagation and survival, fishing, wildlife, and secondary recreation
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Tr
Enumerated Domain Value Definition: Suitable for natural trout propagation and maintenance of stocked trout
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Sw
Enumerated Domain Value Definition: Waters which have low velocities and other natural characteristics which are different from adjacent streams
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: HQW
Enumerated Domain Value Definition: High Quality Waters which are waters that are rated as excellent based on biological and physical/chemical characteristics through division monitoring or special studies; native and special native trout waters (and their tributaries) designated by the Wildlife Resources Commission; primary nursery areas (PNA) designated by the Marine Fisheries Commission and other functional nursery areas designated by the Wildlife Resources Commission; critical habitat areas designated by the Wildlife Resources Commission or the Department of Agriculture; all water supply watersheds which are either classified as WS-I or WS-II or those for which a formal petition for reclassification as WS-I or WS-II has been received from the appropriate local government and accepted by the Division of Water Quality; and all Class SA waters.
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: NSW
Enumerated Domain Value Definition: Nutrient Sensitive Waters which require limitations on nutrient inputs
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: ORW
Enumerated Domain Value Definition: Outstanding Resource Waters which are unique and special waters of exceptional state or national recreational or ecological significance which require special protection to maintain existing uses.
Enumerated Domain Value Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: DWQ_CLDATE
Attribute Definition: Date of last feature classification
Attribute Definition Source: NC DEQ-Div of Water Quality, Water Quality Section
Attribute Domain Values:
Unrepresentable Domain: Variable by river basin
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: DESCRIP_CL
Attribute Definition: Description of classification stream reach beginning and end
Attribute Definition Source: NC DEQ-Div. Of Water Quality, Water Quality Section
Attribute Domain Values:
Unrepresentable Domain: Varies in length and number of words
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: OBJECTID
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: AREA
Attribute Definition: Area of feature in map units
Attribute Definition Source: Software
Attribute Domain Values:
Unrepresentable Domain: values differ
Distribution Liability: NCCGIA is charged with the development and maintenance of NC OneMap and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop this dataset may be reflected in the data supplied. The user must be aware of possible conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this dataset without its current, compliant metadata record. The use of trade names or commercial products does not constitute their endorsement by NCCGIA or North Carolina State Government.
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