FEMA Flood Insurance Rate Maps for the Seaside-Gearhart, Oregon, Area: Gearhart (f4100300001d.tif)

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Federal Emergency Management Administration
Originator: Florence L. Wong
Publication_Date: 2006
Title:
FEMA Flood Insurance Rate Maps for the Seaside-Gearhart, Oregon, Area: Gearhart (f4100300001d.tif)
Edition: 1
Geospatial_Data_Presentation_Form: map
Online_Linkage: <https://pubs.usgs.gov/ds/2006/236/catalog.shtml>
Larger_Work_Citation:
Citation_Information:
Originator: Florence L. Wong
Originator: Angie J. Venturato
Originator: Eric L. Geist
Publication_Date: 2006
Title:
Seaside, Oregon, Tsunami Pilot Study - Modernization of FEMA Flood Hazard Maps: GIS Data
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 236
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Online_Linkage: <https://pubs.usgs.gov/ds/2006/236/>
Description:
Abstract:
FEMA's Flood Insurance Rate Map (FIRM) depicts the spatial extent of Special Flood Hazard Areas (SFHAs) and other thematic features related to flood risk assessment. FIRMs also provide a basis for establishing flood insurance coverage premium rates offered through the National Flood Insurance Program (NFIP). These maps were published as paper documents, which have been scanned into image files (TIFF) as part of FEMA's FIRM modernization process. This is one of three scanned maps for the Seaside-Gearhart area - 410030 0001 D, 410032 0001 C, and 410032 0002 C - that were georeferenced for the probabilistic tsunami hazard assessment project.
Purpose:
This data set is one of a collection of digital files of a geographic information system of spatially referenced data related to the Seaside, Oregon, Tsunami Pilot Study.

Federal Emergency Management Agency (FEMA) Federal Insurance Rate Map (FIRM) guidelines do not currently exist for conducting and incorporating tsunami hazard assessments that reflect the substantial advances in tsunami research achieved in the last two decades (Tsunami Pilot Study Working Group, 2006). Therefore, as part of FEMAs Modernization Program, a Tsunami Pilot Study was carried out in the Seaside/Gearhart, Oregon, area to provide information from which tsunami mapping guidelines could be developed. This area was chosen because it is typical of coastal communities in the section of the Pacific Coast from Cape Mendocino to the Strait of Juan de Fuca. There was also considerable interest shown by state agencies and local stakeholders in mapping the tsunami threat to this area. The study was an interagency effort by scientists from the U.S. Geological Survey, the National Oceanic and Atmospheric Administration, the University of Southern California, and the Middle East Technical University. We present the GIS data from that report in this publication.

These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.

Supplemental_Information:
The following explanatory text was transcribed from Flood Insurance Rate Map 410027 0019 B, Clatsop County (Unincorporated Areas), revised June 16, 1999 (FEMA, 1999).

Elevations referenced to the National Geodetic Vertical Datum of 1929 (NGVD29).

Zone A: Areas of 100-year flood; base flood elevations and flood hazard factors not determined.

Zone A0: Areas of 100-year shallow flooding where depths are between one (1) and three (3) feet; average depths of inundation are shown, but no flood hazard factors are determined.

Zone AH: Areas of 100-year shallow flooding where depths are between one (1) and three (3) feet; base flood elevations are shown, but no flood hazard factors are determined.

Zone A1-A30: Areas of 100-year flood; base flood elevations and flood hazard factors determined.

Zone A99: Areas of 100-year flood to be protected by flood protection system under construction; base flood elevations and flood hazard factors not determined.

Zone B: Areas between limits of the 100-year flood and 500-year flood; or certain areas subject to 100-year flooding with average depths less than one (1) foot or where the contributing drainage area is less than one square mile; or areas protected by levees from the base flood. (Medium shading)

Zone C: Areas of minimal flooding. (No shading)

Zone D: Areas of undetermined, but possible, flood hazards.

Zone V: Areas of 100-year coastal flood with velocity (wave action); base flood elevations and flood hazard factors not determined.

Zone V1-V30: Areas of 100-year coastal flood with velocity (wave action); base flood elevations and flood hazard factors determined.

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1981
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -123.930728
East_Bounding_Coordinate: -123.898978
North_Bounding_Coordinate: 46.038680
South_Bounding_Coordinate: 46.013240
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: probabilistic tsunami hazard assessment
Theme_Keyword: tsunamis
Theme_Keyword: coastal geology
Theme_Keyword: PTHA
Theme_Keyword: tsunami probability
Theme_Keyword: tsunami hazard
Theme_Keyword: FEMA FIRM flood insurance rate map
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Seaside, Oregon
Place_Keyword: Gearhart, Oregon
Place_Keyword: Oregon
Place_Keyword: USA
Place:
Place_Keyword_Thesaurus: GEOnet Names Server
Place_Keyword: north Pacific Ocean
Access_Constraints: None.
Use_Constraints:
The data, digital results, GIS layers, and map products in this database have been created specifically as part of a pilot study for FEMA's modernization of Flood Insurance Rate Maps (FIRMs) project. The results of the pilot study are intended to help FEMA draft new guidelines related to tsunami flooding for Coastal Flood Hazard Analysis and Mapping for the Pacific Coast of the United States. The results are intrinsically probabilistic and designed according to FEMA flood zone specifications: annual probabilities of exceedance of 1% and 0.2%. The data, digital results, GIS layers, and map products are not intended for other uses. In particular, the 1% and 0.2% annual exceedance probability tsunami flood maps are not to be used for emergency planning, evacuation, or other insurance purposes. Please refer to the National Tsunami Hazard Mitigation Program tsunami inundation maps for use in emergency planning.

Please recognize the U.S. Geological Survey (USGS) as the source of this information.

Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.

The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.

This information is not intended for navigational purposes.

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Florence L. Wong
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 345 Middlefield Road, MS 999
City: Menlo Park
State_or_Province: California
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: 650-329-5327
Contact_Facsimile_Telephone: 650-329-5190
Contact_Electronic_Mail_Address: fwong@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: <https://pubs.usgs.gov/ds/2006/236/metadata/f41003.jpg>
Browse_Graphic_File_Description:
FEMA Flood Insurance Rate Maps for the Seaside-Gearhart, Oregon, Area
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.1.0.722
Cross_Reference:
Citation_Information:
Originator: Tsunami Pilot Study Working Group
Publication_Date: 2006
Title:
Seaside, Oregon Tsunami Pilot Study - Modernization of FEMA Flood Hazard Maps
Edition: 1
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2006-1234
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Online_Linkage: <https://pubs.usgs.gov/of/2006/1234/>

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Data set is a raster image and contains no attribute information.
Logical_Consistency_Report: No tests for logical consistency were conducted
Completeness_Report: Complete.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The FEMA Flood Insurance Rate Map images presented here are georeferenced to USGS DRGs for comparison to data produced by probabilistic tsunami hazard assessment (PTHA). The exact placement of any geographic feature as portrayed in these edited images has not been verified.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Federal Emergency Management Administration
Publication_Date: 1999
Title: City of Gearhart, Oregon, Clatsop County
Series_Information:
Series_Name: FEMA Flood Insurance Rate Map
Issue_Identification: Community-panel number 410030 0001 D
Other_Citation_Details:
scale: 1 inch = 600 feet: 1:7,200; initial identification: December 7, 1973; Flood hazard boundary map revision: December 19, 1975; Flood insurance rate map effective: May 15, 1978; Flood insurance rate map revisions: January 3, 1983; Map revised June 16, 1999 to update corporate limits, to add base flood elevations, to add special flood hazard areas, and to change zone designations
Source_Scale_Denominator: 7200
Type_of_Source_Media: digital image of paper map
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1999
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: FEMA, 1999
Source_Contribution: map
Process_Step:
Process_Description:
TIFF images of paper FEMA Flood Insurance Rate Maps were registered to USGS Digital Raster Graphics images for the Seaside-Gearhart, Oregon, area using a second-order polynomial transformation and saved as an Arc grid. The grid was clipped to the data area and converted to a TIFF (.tif) image.
Process_Date: 2005

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 5598
Column_Count: 4851
Vertical_Count: 1

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 10
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -123.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 0.500000
Ordinate_Resolution: 0.500000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview: Raster image of FEMA Flood Insurance Rate Map
Entity_and_Attribute_Detail_Citation: none.

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing address
Address: USGS Information Services
Address: Box 25286
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0286
Country: USA
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: infoservices@usgs.gov
Resource_Description: U.S. Geological Survey Data Series 236
Distribution_Liability:
This information is not intended for navigational purposes.

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Transfer_Size: 3.3
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://pubs.usgs.gov/ds/2006/236/>
Fees: None
Technical_Prerequisites:
Geographic information systems (GIS) software is necessary for access to all features of the data set, but image formats may be viewed by other graphics software.

Metadata_Reference_Information:
Metadata_Date: 20060726
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Florence L. Wong
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 345 Middlefield Road, MS 999
City: Menlo Park
State_or_Province: California
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: 650-329-5327
Contact_Facsimile_Telephone: 650-329-5190
Contact_Electronic_Mail_Address: fwong@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.8.11 on Tue Dec 19 09:15:35 2006