FEMA Q3 Flood Data, Tillamook County, OR 1996

Citation:

Citation Information:

Publication Date: 1996
Title: FEMA Q3 Flood Data, Tillamook County, OR 1996
Geospatial Data Presentation Form: Map
Publication Information:

Publication Place: Washington, DC
Publisher: Federal Emergency Management Agency

Online Linkage: http://www.fema.gov

Description:

Abstract:
The Q3 Flood Data are derived from the Flood Insurance Rate Maps (FIRMS) published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using geographic projection and decimal degree coordinate system. The specifications for the horizontal control of Q3 Flood Data files are consistent with those required for mapping at a scale of 1:24000.

Supplemental Information: The data have been reprojected to the Oregon Lambert (OGIC) projection for use in the Coastal Atlas.

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 1996
Beginning Time: Unknown
Ending Date: 1996
Ending Time: Unknown

Currentness Reference: Publication date of sources

Status:

Progress: Complete
Maintenance and Update Frequency: Irregular

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -120.4866
East Bounding Coordinate: -119.7313
North Bounding Coordinate: 45.8345
South Bounding Coordinate: 45.0869

Keywords:

Theme:

Theme Keyword Thesaurus: None
Theme Keyword: Flood Hazard Zones
Theme Keyword: Q3 Flood Data
Theme Keyword: Q3 Coverage
Theme Keyword: Special Flood Hazard Areas
Theme Keyword: Digital Flood Insurance Rate Maps

Place:

Place Keyword Thesaurus: None
Place Keyword: Tillamook
Place Keyword: OR
Place Keyword: USA

Access Constraints: None
Use Constraints: None. Acknowledgement of the Federal Emergency Management Agency would be appreciated in products derived from these data.
Point of Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: Federal Emergency Management Agency

Contact Position: Mitigation Directorate National Flood Insurance Program
Contact Address:

Address Type: mailing and physical address
Address: 500 C Street SW
City: Washington
State or Province: District of Columbia
Postal Code: 20472
Country: USA

Contact Voice Telephone: 1-800-358-9616
Contact Facsimile Telephone: 1-800-358-9616

Native Data Set Environment: ArcView version 3.2 shapefile format

Attribute Accuracy:

Attribute Accuracy Report:
The Q3 Flood Data are countywide vector files derived from the FEMA Flood Insurance Rate Maps (FIRMS). The attribute definitions may be found in the "Q3 Flood Data Specfications". Attribute accuracy was tested by manual comparison of source graphic with hardcopy plots and a symbolizied display on an interactive computer graphic system. Selected attributes that could not be visually verified were individually queried. In addition, an ARC/INFO Arc Macro Language (AML) software
program was applied to the dataset to test the attributes against a master set of valid attributes for the specific data category, and a complete set of valid attribute combinations. (See also Entity Attribute Information).

Positional Accuracy:

Horizontal Positional Accuracy:

Horizontal Positional Accuracy Report:
Specifications for the digitizing of FIRMs to create the Q3 Flood Data are consistent with those requirements for mapping at a scale of 1:24000. Horizontal control of Q3 Flood Data was established using USGS quadrangle maps at 1:24000 or other standard scales. Users should assess the horizontal positional sources and the requirements of their application. With increased frequency, large-scale spatial data sets are becoming widely available for computer-based geographic information systems. Q3 Flood Data may be used in combination with other digital spatial data, however, users should be aware that scalar enlargements do not enhance the relative accuracy of the Q3 Flood Data (i.e. 1:24000).

Lineage:

Source Information:

Source Citation:

Citation Information:

Publication Date: 1996
Title: FEMA Q3 Flood Data, Tillamook County, OR 1996
Geospatial Data Presentation Form: Map
Publication Information:

Publication Place: Washington, DC
Publisher: Federal Emergency Management Agency

Online Linkage: http://www.fema.gov

Source Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 8/1/1978
Beginning Time: Unknown
Ending Date: 8/1/1978
Ending Time: Unknown

Source Currentness Reference: Effective Date

Source Citation Abbreviation: FIRM1
Source Contribution: spatial and attribute information

Process Step:

Source Used Citation Abbreviation: FIRM1
Process Date: 1996

Cloud Cover: 0

Direct Spatial Reference Method: Vector
Point and Vector Object Information:

SDTS Terms Description:

SDTS Point and Vector Object Type: GT-polygon composed of chains
Point and Vector Object Count: 1032

Horizontal Coordinate System Definition:

Planar:

Map Projection:

Map Projection Name: Lambert Conformal Conic
Lambert Conformal Conic:

Standard Parallel: 43
Standard Parallel: 45.5
Longitude of Central Meridian: -120.5
Latitude of Projection Origin: 41.75
False Easting: 400000
False Northing: 0

Planar Coordinate Information:

Planar Coordinate Encoding Method: Coordinate Pair
Coordinate Representation:

Abscissa Resolution: 0
Ordinate Resolution: 0

Planar Distance Units: international feet

Geodetic Model:

Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137
Denominator of Flattening Ratio: 298.257

Overview Description:

Entity and Attribute Detail Citation:
The FEMA "Q3 Flood Data Specifications" contain a detailed description of each attribute code and a reference to other relevant information.

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: FEMA, Map Service Center

Contact Address:

Address Type: mailing and physical address
Address: 6730 Santa Barbara Court
City: Baltimore
State or Province: Maryland
Postal Code: 21227-5832
Country: USA

Contact Voice Telephone: 1-800-358-9616

Distribution Liability:
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. FEMA will warrant the delivery of this product in a computer-readable format, and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustment of credit must be made within 90 days from the date of this shipment from the ordering site.

Standard Order Process:

Digital Form:

Digital Transfer Information:

Format Name: ARC/INFO Export File Format

Digital Transfer Option:

Offline Option:

Offline Media: CD-ROM
Recording Format: ISO 9660

Available Time Period:

Time Period Information:

Single Date/Time:

Calendar Date: 9/1948
Time of Day: Unknown

Metadata Date: 1/26/2003
Metadata Review Date:
Metadata Future Review Date:
Metadata Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: Oregon State University
Contact Person: Ryan Fields

Contact Position: Oregon Coastal Atlas Intern
Contact Address:

Address Type: Mailing and physical address
Address: Department of Geosciences, Oregon State University
City: Corvallis
State or Province: Oregon
Postal Code: 97331-5506
Country: USA

Contact Voice Telephone: 541-737-1201
Contact Facsimile Telephone: 541-737-1200

Metadata Standard Name: FGDC CSDGM
Metadata Standard Version: FGDC-STD-001-1998