United States. Bureau of Transportation Statistics
United States. Department of Transportation. Research and Innovative Technology Administration
United States. Bureau of the Census.
2011
United States Hydrographic Polygons, 2013
vector digital data
Suitland, MD
U.S. Bureau of the Census (BOC)
Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)
20110101
National Transportation Atlas Databases (NTAD) 2013
vector digital data
Washington DC
Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)
http://www.columbia.edu/acis/eds/gis/images/ntad_2013_hydropol.zip
The hydro polygon/arc coverages were created using TIGER/LINE 2000 shapefile data gathered from ESRI's Geography Network. The individual county hydrography line shapefiles were processed into Arc/Info coverages and then appended together to create complete state coverages. They were then edited to remove unwanted features, leaving a state-by-state database of both important and navigable water features. Attributes were added to denote navigable features and names. Also, an attribute was added to the polygons to denote which were water and which were land features. The state databases were then appended together to create a single, nationwide hydrography network containing named arcs and polygons. These features also contain a state FIPS. Because some of the hydro features are represented by lines instead of polygons, the complete hydro dataset consists of 2 shapefiles, one for lines and one for polygons. They must be used together to paint a complete picture.
The RITA/BTS desires a single nationwide database that has polygons/attributes for major rivers and lakes, is consistent across state lines, and has the most accurate data available. This database will be used primarily for map production, basic queries, and will be distributed as part of the National Transportation Atlas Database (NTAD) 2013.
The RITA/BTS HYDRO Database contains TIGER 2000 geometry and attributes. UTCTR flagged this database to represent major water features and edited the geometry to insure polygons would fill for cartographic representation. To find out more about TIGER/Line files and other Census TIGER data base derived data sets visit http://www.census.gov/geo/www/tiger.
2011
ground condition
Complete
As needed
-179.252851
179.830623
71.441056
17.831509
polygon
line
polygon
hydrography
water
ISO 19115 Topic Categories
boundaries
environment
inlandWaters
oceans
Library of Congress Subject Headings
United States
None
2011
2009
2010
2007
2000
2008
2012
2013
None
None
Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)
Office of Geospatial Information Systems
mailing and physical
1200 New Jersey Ave., SE
Washington
DC
20590
US
202-366-DATA
answers@bts.gov
Unclassified
Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)
20110101
National Transportation Atlas Databases (NTAD) 2013
vector digital data
Washington, DC
Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)
Compiled by the University of Tennessee Center for Transportation Research GIS GROUP from the TIGER/Line machine readable files, U.S. Bureau of the Census (BOC)
http://www.bts.gov/programs/geographic_information_services/
None
unknown
None
All node-link and polygon topological relationships are created and verified using computer algorithms. Unique entity identifiers were similarly verified by computer algorithm.
Attributes for the hydrography data set were created using ARC/INFO, a Geographic Information System. All area and distance values were calculated to the nearest 50m.
Consistent with TIGER 2000
1:
1: = Unknown
University of Tennessee Center for Transportation Research GIS GROUP
20010101
Nationwide Hydrographic Database
http://www.bts.gov/programs/geographic_information_services/
100
None
20110101
publication date
HYDRO
Unknown
When UTN processed the TIGER dataset for State, County and Hydrographic (lines and polygons), a 3-mile buffer was created around the Texas shorelines. This buffer removed the island off the coast of Texas. To correct this error, BTS used ARC/INFO to remove the 3-mile buffer to capture the islands along Texas. To capture the islands, the state dataset needed to be reselected by selecting: code = 1. This process created a few inaccurate polygons and they were removed. To create the final datasets, the datasets were dissolved and regions created on STFIPS and County FIPS.
20030301
1) Downloaded zipped shapefiles from www.geographynetwork.com; 2) Converted the Shapefiles to Coverages; 3) Removed all intermittent water features H02, H12, H22, H32, H42, H60, H71, H72, H80, and H81 from the database coverages; 4) Flagged arcs to be retained in the output coverage based on relative importance and research using the Internet and state maps; 5) Added attributes to polygons to denote name description and land/water. These attributes were then populated by user input using mapping resources such as state and county maps; 6) Added attribute to both arcs and polygons to denote navigable waterways. For single line features, the arcs were flagged. If a feature contained polygons, the polygons only were flagged; 7) States were then appended, extra items dropped, data released.
TIGER
20060101
Vector
GT-polygon composed of chains
57364
8.983152841195215e-009
8.983152841195215e-009
Decimal Degrees
D WGS 1984
WGS 1984
6378137.0
298.257223563
hydropol
ESRI Shapefile of hydrographic features (polygon)
ESRI and RITA/BTS
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
A "polygon" is an area feature comprised of points and line segments.
ESRI
Coordinates defining the features.
LANDCODE
Determines if feature is Land or Water
UTCTR and RITA/BTS
0
water
1
land or island
DESCRIPT
Feature Name
UTCTR and BOC
free text
NAVIGABLE
Navigable Waterway Network
U.S. Army Corps of Engineers (USACE)
0
not navigable
1
navigable
STFIPS
State FIPS code
U.S. Bureau of the Census (BOC)
Federal Information Processing Standard (FIPS), Publication 6-4
National Institute for Standards and Technology (NIST)
STPOSTAL
U.S. Postal Service two letter state abbreviation.
USPS
Official List of State Postal Abbreviations
U.S. Postal Service
Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS)
Office of Geospatial Information Systems
mailing and physical
1200 New Jersey Ave., SE
Washington
DC
20590
US
202-366-DATA
answers@bts.gov
ntad_2013_hydropol
None
Call (202-366-DATA), or E-mail (answers@bts.gov) RITA/BTS to request the National Transportation Atlas Databases (NTAD) 2013 DVD. The NTAD DVD can be ordered from the online bookstore at www.bts.gov. Individual datasets from the NTAD can also be downloaded from the Office of Geospatial Information Systems website at http://www.bts.gov/programs/geographic_information_services/.
20110101
20140925
Research Data Services (RDS), Columbia University Libraries
GIS/Metadata Librarian
mailing and physical address
420 W. 118th St., 215 IAB, MC 3301
New York
NY
10027
USA
(212)854-6012
data@library.columbia.edu
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time