FEMA Framework Basemap datasets comprise six of the seven FGDC themes of geospatial data that are used by most GIS applications
(Note: the seventh framework theme, orthographic imagery, is packaged in a separate NFIP Metadata Profile): cadastral, geodetic
control, governmental unit, transportation, general structures, hydrography (water areas & lines. These data include an encoding
of the geographic extent of the features and a minimal number of attributes needed to identify and describe the features.
(Source: Circular A16, p. 13)
Citation
Title BASE MAP DATASET, HOWARD COUNTY, ARKANSAS
publication Date
2008-09-15
presentationForm
FGDC-FRAMEWORK-BASEMAP
cited responsible party
-
publisher
organisation Name
Federal Emergency Management Agency
Contact information
Address
, Washington, DC
cited responsible party
-
originator
organisation Name
Federal Emergency Management Agency
cited responsible party
-
originator
organisation Name
Federal Emergency Management Agency
The Basemap datasets reflect the reference features (i.e., roads, streets, hydrographic features, political jurisdiction boundaries)
needed by users to locate properties on FIRMs. (Source: Guidelines and Specifications Vol 1, p. 68)
Resource language:
eng; USA
Resource progress code:
underDevelopment
Resource Maintenance Information
maintenance or update frequency:
unknown
Constraints on resource usage:
Constraints
Use limitation statement:
No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system nor shall the act of
distribution constitute any such warranty.
Constraints on resource usage:
Legal Constraints
use constraint:
otherRestrictions
Other constraints
Use Constraints: Acknowledgement of FEMA would be appreciated in products derived from these data. This digital data is produced
for the purposes of updating/creating a DFIRM database.
Constraints on resource usage:
Legal Constraints
Access Constraints
otherRestrictions
Other constraints
Access Constraints: None
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-94.378496
eastBoundLongitude
-93.73723
northBoundLatitude
39.378
southBoundLatitude
38.7478
Temporal Extent
2008-10-09
point of contact
-
pointOfContact
individual Name Krista Bethune, PE
organisation Name
Watershed Alliance VI
position Name Project Manager
Contact information
Telephone
Voice 1-512-435-5367
Address
811 Barton Springs Rd, Suite 811, Austin, Texas, 78704
Country USA
source description
Source Contribution: Spatial and attribute information for the index of USGS 7.5-Minute Series Topographic Map boundaries.Source
Type vector digital data
source citation
Title USGS 7.5-Minute Series Topographic Maps
publication Date
1989-01-01
cited responsible party
-
originator
organisation Name
USGS
Resource extent
Temporal Extent
2008-09-10
source
source description
Source Contribution: Spatial and attribute information for Bencharks.Source Type point digital datea
source citation
Title Benchmarks
publication Date
2004-01-01
cited responsible party
-
originator
organisation Name
National Geodetic Survey
Resource extent
Temporal Extent
2008-09-10
source
source description
Source Contribution: Spatial and attribute infromation for County Boundary.Source Type vector digital data
source citation
Title Political Boundaries
publication Date
2006-08-29
cited responsible party
-
originator
organisation Name
Arkansas Highway and Transportation Department
Resource extent
Temporal Extent
2008-10-09
source
source description
Source Contribution: Spatial and attribute infromation for City Boundary.Source Type vector digital data
source citation
Title Political Boundaries
publication Date
2006-08-29
cited responsible party
-
originator
organisation Name
Arkansas Highway and Transportation Department
Resource extent
Temporal Extent
2008-10-09
source
source description
Source Contribution: Spatial and attribute infromation for street centerlines.Source Type vector digital data
source citation
Title Transportation
publication Date
2004-01-01
cited responsible party
-
originator
organisation Name
State Land Information Board
Resource extent
Temporal Extent
2008-09-10
source
source description
Source Contribution: Spatial and attribute infromation for stream centerline and water area locations.Source Type vector digital
data
source citation
Title InlandWaters
publication Date
2006-07-05
cited responsible party
-
originator
organisation Name
U.S. Geological Survey
Resource extent
Temporal Extent
2008-10-09
source
source description
Source Contribution: Spatial and attribute infromation for PLSS.Source Type Vector Digital Data
source citation
Title Public Land Survey Sections
publication Date
1999-01-01
cited responsible party
-
originator
organisation Name
U.S. Geological Survey
Resource extent
Temporal Extent
2008-10-09
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description
The NSSDA is used to report the horizontal accuracy of the base map data used by FEMA to produce a FIRM. The NSSDA uses radial
accuracy (Accuracy) to report the radius of a circle of uncertainty, such that the true or theoretical location of a point
falls within that circle 95 percent of the time. (Guidelines and Specifications Vol 1, p. 70)
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy
measure Description
The minimum horizontal positional accuracy for new FIRM base map data is that of the default base map - the USGS DOQs, which
have an NSSDA radial accuracy of 38 feet. Data that meet higher accuracy standards are also acceptable. Accuracy of 38 feet
is the same as radial root mean square error (RMSEr) of 22 feet. (Guidelines and Specifications Vol 1, p. 70)
Quantitative Result
result value 11.5824
value Units
Completeness Commission
evaluation Method Description
The Basemap datasets represents all the features utilized during the study mapping process to spatially position the DFIRM
information and highlights the specific prioritization process laid out in the Guidelines and Specifications Vol 1, p. 69
in their selection for use. The final selection criteria, and rational for inclusion should be outlined here, along with rational
for exclusion of use of specific base map datasets if applicable.
Completeness Omission
evaluation Method Description
The Basemap datasets represents all the features utilized during the study mapping process to spatially position the DFIRM
information and highlights the specific prioritization process laid out in the Guidelines and Specifications Vol 1, p. 69
in their selection for use. The final selection criteria, and rational for inclusion should be outlined here, along with rational
for exclusion of use of specific base map datasets if applicable.
ConceptualConsistency
measure Description
Polygons intersecting the neatline are closed along the border. Segments making up the outer and inner boundaries of a polygon
tie end-to-end to completely enclose the area. Line segments are a set of sequentially numbered coordinate pairs. No duplicate
features exist nor duplicate points in a data string. Intersecting lines are separated into individual line segments at the
point of intersection. Point data are represented by two sets of coordinate pairs, each with the same coordinate values. Tests
for logical consistency are performed by DFIRM tools topology verification software.
Data requests must include the full name of the community or county and the FIRM panel number(s) or the 7.5- minute series
quadrangle sheet area(s) covered by the request.
notes: This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version
FGDC-STD-001-1998) using the 2012-06-20T17:21:00 version of the FGDC RSE to ISO 19115-2 transform.
Metadata contact
-
pointOfContact
individual Name MIP Help
organisation Name
Federal Emergency Management Agency
Contact information
Telephone
Voice 1-877-336-2627
Address
500 C Street, S.W., Washington, District of Columbia, 20472
Country USA