U.S. Geological Survey, 200301, HYDROGL020 - U.S. National Atlas Water Feature Areas: aqueducts, canals, dams, intercoastal waterways, rivers, and streams: U.S. Geological Survey, Reston, VA.Online Links:
- <http://nationalatlas.gov/atlasftp.html>
- <http://coastalmap.marine.usgs.gov/GISdata/basemaps/usa/water/hydrogl020.zip>
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees.
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.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
| Value | Definition |
|---|---|
| Aqueduct | A structure designed to transport water from a supply source to a distribution point, often by gravity. |
| Braided Stream | A stream or river that flows in an intricate network of interlacing channels. |
| Canal | An artificial open waterway constructed to carry water, to irrigate or drain land, to connect two or more bodies of water, or to serve as a waterway for water craft. |
| Canal Intermittent | An artificial open waterway, that contains water part of the year, constructed to carry water, to irrigate or drain land, to connect two or more bodies of water, or to serve as a waterway for water craft. |
| Dam | A barrier constructed to control the flow or level of water. |
| Falls | A vertical or near vertical descent of water over a step or ledge in the bed of the stream. |
| Intercoastal Waterway | A system of rivers, canals and designated channels along the northern border and the Atlantic and Gulf coasts of the United States. |
| Stream | A body of water flowing in a channel or watercourse. |
| Stream Intermittent | A body of water flowing in a channel or watercourse for part of the year. |
Names for the features.
| Formal codeset | |
|---|---|
| Codeset Name: | Federal Information Processing Standards 5-2 |
| Codeset Source: | National Institute of Standards and Technology |
Valerie Paskevich
U.S. Geological Survey
Information Specialist, GIS Coordinator
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 x2281 (voice)
(508) 457-2310 (FAX)
vpaskevich@usgs.gov
U.S. National Atlas Water Feature Areas provides the water feature areas for geographic display and analysis at regional and national levels.
Atlas, National, and U.S. Geological Survey, 19991109, National Atlas Water Features: Streams and Waterbodies (hydrogm020.tar.gz): U.S. Geological Survey, Reston, VA.Online Links:
- <http://www.nationalatlas.gov/atlasftp.html>
- <http://edcftp.cr.usgs.gov/pub/data/nationalatlas/hydrogm020.tar.gz>
- <http://nationalatlas.gov/hydrom.html>
Some spatial features were added and corrected. Some name attributes were added or corrected. All occurrences of St. were changed to Saint. Extra spaces were removed from the attributes. Hydrographic features for Puerto Rico and the U.S. Virgin Islands were added. A minor adjustment was made to the shoreline in Galveston Bay, Texas.
Data sources used in this process:
Data sources produced in this process:
Person who carried out this activity:
Valerie PaskevichData sources used in this process:
U.S. Geological Survey
Information Specialist, GIS Coordinator
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 x2281 (voice)
(508) 457-2310 (FAX)
vpaskevich@usgs.gov
Data sources produced in this process:
The geospatial part of this data set was originally extracted from the individual 1:2,000,000-scale State boundary Digital Line Graph (DLG) files produced by the U.S. Geological Survey which have a positional accuracy of 1,720 meters. It was updated several times using various sources whose horizontal positional accuracies are unknown.
This is a subset of the data set available from the U.S. Geological Survey National Atlas. Removed unneeded attributes. Records with "Null" fields have been removed. Removed features also represented in National Atlas Water Feature Areas. Removed features with "shoreline" as not to conflict with other shorelines (e.g. NOS80k) used by the USGS, Coastal and Marine Geology Program, Woods Hole Science Center.
This data set includes water features for all 50 States, Puerto Rico, and the U.S. Virgin Islands. Data completeness generally reflects the content of the original DLG files.
The data set was checked for topological consistency using the Arc/INFO command BUILD. No other checks for logical consistency were performed on this data set.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Public domain data from the U.S. government are freely redistributable with proper metadata and source attribution. Acknowledgment of the National Atlas of the United States of America and (or) the U.S. Geological Survey would be appreciated in products derived from these data.
Earth Science Information Center, U.S. Geological Survey
507 National Center
Reston, VA 20192
1-888-ASK-USGS (1-888-275-8747) (voice)
- Contact_Instructions:
- In addition to the address above there are other ESIC offices throughout the country. A full list of these offices is at <http://mapping.usgs.gov/esic/esic_index.html>.
Downloadable Data: hydrogm020.tar.gz
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these data.
| Data format: | ESRI Shapefile |
|---|---|
| Network links: |
<http://www.nationalatlas.gov> <http://edcftp.cr.usgs.gov/pub/data/nationalatlas/hydrogm020.tar.gz> <http://nationalatlas.gov/hydrom.html> |
| Media you can order: |
CD-ROM
(format tar)
|
| Data format: | SDTS |
|---|---|
| Network links: |
<http://nationalatlas.gov> <http://edcftp.cr.usgs.gov/pub/data/nationalatlas/hydm.tar.gz> <http://nationalatlas.gov/hydrom.html> |
| Media you can order: |
CD-ROM
(format tar)
|
There is no charge for the online option. For National Atlas files ordered on CD-ROM there is a base price of $45.00 per disc, a handling fee of $5.00, and a per-file charge based on file size. The charge for files less than 10 megabytes in size is $1.00. The charge for files that range in size from 10 to 150 megabytes is $7.50. The charge for files of 150 megabytes or larger is $15.00. The charge is $7.50 for the Streams and Waterbodies of the United States data set.
To order files on CD-ROM, please see <http://nationalatlas.gov/atlasftp.html#q12>.
The data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing data. A free data viewer, arcexplorer, is available from ESRI at www.esri.com.
U.S. Geological Survey, Coastal and Marine Geology Program
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 (voice)
Downloadable Data: hydrogl020.zip
Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data 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.
| Data format: | ESRI Shapefile Size: 24.896 |
|---|---|
| Network links: |
<http://coastalmap.marine.usgs.gov/GISdata/basemaps/usa/water/hydrogl020.zip> |
| Media you can order: |
CD_ROM
(format tar)
|
The data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing data. A free data viewer, arcexplorer, is available from ESRI at www.esri.com.
U.S. Geological Survey
c/o Valerie Paskevich
Information Specialist, GIS Coordinator
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA
(508) 548-8700 x2281 (voice)
(508) 457-2310 (FAX)
vpaskevich@usgs.gov