NC Center for Geographic Information and Analysis, 20020702, onemap_prod.SDEADMIN.hydromaj_poly: NC Center for Geographic Information and Analysis, Raleigh, NC.Online Links:
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.002048
Ordinates (y-coordinates) are specified to the nearest 0.002048
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Varies in length and number of words
Coordinates defining the features.
Variable
Software computed
Software computed
| Formal codeset | |
|---|---|
| Codeset Name: | Standards for Digital Line Graphs |
| Codeset Source: | US Geological Survey, NMD |
| Formal codeset | |
|---|---|
| Codeset Name: | Standards for Digital Line Graphs |
| Codeset Source: | US Geological Survey, NMD |
Names of streams vary in length and number of words.
Names of streams vary in length and number of words.
| Value | Definition |
|---|---|
| TAR-PAMLICO | Feature in the Tar-Pamlico river basin |
| CAPE FEAR | Feature in the Cape Fear river basin |
| CHOWAN | Feature in the Chowan river basin |
| FRENCH BROAD | Feature in the French Broad river basin |
| NEUSE | Feature in the Neuse river basin |
| NEW | Feature in the New river basin |
| PASQUOTANK | Feature in the Pasquotank river basin |
| WHITE OAK | Feature in the White Oak river basin |
| BROAD | Feature in the Broad river basin |
| CATAWBA | Feature in the Catawba river basin |
| LITTLE TENNESSEE | Feature in the Little Tennessee river basin |
| HIWASSEE | Feature in the Hiwassee river basin |
| SAVANNAH | Feature in the Savannah river basin |
| YADKIN | Feature in the Yadkin river basin |
| LUMBER | Feature in the Lumber river basin |
| ROANOKE | Feature in the Roanoke river basin |
| WATAUGA | Feature in the Watauga river basin |
Values vary in length and number of words.
| Value | Definition |
|---|---|
| 1 | Feature not originally on 1:000,000 scale DLG base. Added to complete network for DEM stream system. |
| 2 | Feature modified from original delineation |
| Other values to be determined | Other values not currently recorded |
Classification number used internally
| Value | Definition |
|---|---|
| WS-I | Waters protected as water supplies which are in natural and undeveloped watersheds |
| WS-II | Waters protected as water supplies which are generally in predominantly undeveloped watersheds |
| WS-III | Waters protected as water supplies which are generally in low to moderately developed watersheds |
| WS-IV | Waters protected as water supplies which are generally in moderately to highly developed watersheds |
| WS-V | Waters protected as water supplies which are generally upstream and draining to Class WS-IV waters |
| B | Primary recreation and any other usage specified by the "C" classification |
| C | Aquatic life propagation and survival, fishing, wildlife, secondary recreation, and agriculture |
| SA | Shellfishing for market purposes and any other usage specified by the "SB" and "SC" classification |
| SB | Primary recreation and any other usage specified by the "SC" classification |
| SC | Aquatic life propagation and survival, fishing, wildlife, and secondary recreation |
| Tr | Suitable for natural trout propagation and maintenance of stocked trout |
| Sw | Waters which have low velocities and other natural characteristics which are different from adjacent streams |
| HQW | 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. |
| NSW | Nutrient Sensitive Waters which require limitations on nutrient inputs |
| ORW | 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. |
Variable by river basin
Varies in length and number of words
Sequential unique whole numbers that are automatically generated.
US Geological Survey Reston, Virginia 22092 1-800-USA-MAPS
NCCGIA Director, Timothy R. Johnson Database Administration, Zsolt Nagy Project Manager, Jeffrey Brown North Carolina Center for Geographic Information and Analysis Department of Environment and Natural Resources 301 North Wilmington Street, Suite 700 Raleigh, NC 27699-0322
(919) 733-2090 (voice)
(919)715-0725 (FAX)
dataq@cgia.state.nc.us
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.
NC DENR - Div. of Water Quality, Water Quality Planning Section, 19990301, Detailed Hydrography (1:24,000 scale): NC DENR - Div. of Water Quality, Water Quality Planning, Raleigh, North Carolina.
Survey, US Geological , 1990, USGS 7.5 Minute series quadrangles: US Geological Survey, Reston, Virginia.
NC Center for Geographic Information and Analysis, 19970721, Hydrography 100000: NC Center for Geographic Information and Analysis, Raleigh, North Carolina.
RTI, Inc, 19981231, Use Support/hydrography project: RTI, Inc., Raleigh, North Carolina.
NC Center for Geographic Information and Analysis, 19990115, Hydrography with Use Support (1:100,000): NC Center for Geographic Information and Analysis, Raleigh, North Carolina.
Person who carried out this activity:
(919) 733-2090 (voice)
(919)715-0725 (FAX)
dataq@cgia.state.nc.us
Person who carried out this activity:
(919) 733-5083 (voice)
(919) 715-5637 (FAX)
andrea_leslie@h2o.enr.state.nc.us
Person who carried out this activity:
(919) 563-4694 (voice)
(919) (FAX)
dodo@rti.org
Person who carried out this activity:
(919) 733-2090 (voice)
(919)715-0725 (FAX)
dataq@cgia.state.nc.us
Data sources used in this process:
CGIA, NC, 1999, Water Bodies in North Carolina.
All attribute codes have been extensively edited for accuracy by the associated agency. Stream codes, classifications and use support - NCDENR, DWQ; Linework, DLG code - NCCGIA. Attribute accuracy is considered high.
Hydrography 1:24,000-scale features were taken from the USGS 1:24,000-scale DLGs.
These data represent the locations and identities of surface waters consisting of streams and rivers, lakes, ponds, and shorelines, as depicted on USGS 1:24,000-scale digital line graphs and supplemented to reflect hydrographic features classified by the state but not represented on the original DLG linework. Each stream reach is labeled with stream classification and use support information. All stream segments are approved by DWQ whether they are the original DWQ boundaries or changes to original boundaries.
Using ESRI's ARC/INFO GIS software, the dataset was built for arc and polygon topology using the "build" command. The data set was then cleaned with a fuzzy tolerance of 1 meter. Topology has not been edited since the last build or clean.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Acknowledgement of products derived form this data set should cite the following: The source of the Major Hydrography data is the North Carolina Corporate Geographic Database. Earlier versions of this data set may exist. The user must be sure to use the appropriate data set for the time period of interest. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, CGIA cannot assume liability for any damages or misrepresentation caused by any inaccuracies in the data or as a result of changes to the data caused by system transfers.
(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us
Major Hydrography (1:24,000)
NCCGIA is charged with the development and maintenance of the State's corporate geographic database and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information about the state. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data 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 data. The use of trade names or commercial products does not constitute their endorsement by the NCCGIA or North Carolina State Government.
| Data format: | ARCG (version 8) shapefile Size: 3.968 |
|---|---|
| Media you can order: |
CD-ROM
(format shapefile)
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For current FORMAT/MEDIA INFORMATION, use a web browser: <http://cgia.cgia.state.nc.us/cost.html> or phone NC CGIA Data Distribution 919.733.2090
Data creation and large data analysis jobs contact Database Administration P:(919)733-2090. All data is available through standard ordering procedures on a cost recovery basis.
All formats supplied are created using ARC/INFO GIS software on Unix workstations. Other formats are available. Format compatibility is the user's responsibility. For current FORMAT/MEDIA INFORMATION, use a web browser: <http://cgia.cgia.state.nc.us/cost.html>
(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us