Generalized 100- and 500-year flood zones for Seaside, Oregon, determined by probabilistic tsunami hazard analysis (probzones.shp)

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Florence L. Wong
Originator: Eric L. Geist
Publication_Date: 2006
Title:
Generalized 100- and 500-year flood zones for Seaside, Oregon, determined by probabilistic tsunami hazard analysis (probzones.shp)
Edition: 1
Geospatial_Data_Presentation_Form: vector digital data
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:
PROBZONES is a generalized polygon layer outlining areas in the Seaside-Gearhart, Oregon, area subject to the 100-year and 500-year flood as determined by probabilistic tsunami hazard analysis (PTHA).
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.

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -123.970020
East_Bounding_Coordinate: -123.904470
North_Bounding_Coordinate: 46.060000
South_Bounding_Coordinate: 45.965441
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: probabilistic tsunami hazard analysis
Theme_Keyword: tsunamis
Theme_Keyword: coastal geology
Theme_Keyword: PTHA
Theme_Keyword: tsunami probability
Theme_Keyword: tsunami hazard
Theme_Keyword: FEMA 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/probzones.jpg>
Browse_Graphic_File_Description:
100- and 500-year flood zones as determined by probabilistic tsunami hazard analysis.
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/>
Cross_Reference:
Citation_Information:
Originator:
Mofjeld, H.O., Venturato, A.J., Gonz\341lez, F.I., and Titov, V.V.
Publication_Date: 2004
Title: Background tides and sea level variations at Seaside, Oregon
Series_Information:
Series_Name: NOAA, Technical Memorandum
Issue_Identification: OAR PMEL-126
Other_Citation_Details: 15 pages
Online_Linkage: <http://www.pmel.noaa.gov/pubs/PDF/mofj2736/mofj2736.pdf>
Cross_Reference:
Citation_Information:
Originator: Eric L. Geist
Publication_Date: 2005
Title:
Local Tsunami Hazards in the Pacific Northwest from Cascadia Subduction Zone Earthquakes
Series_Information:
Series_Name: U.S. Geological Survey Professional Paper
Issue_Identification: 1661-B
Other_Citation_Details: 21 pages
Online_Linkage: <https://pubs.usgs.gov/pp/pp1661b/>

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The polygon attribute for this data set is either the 100- or 500-year flood area as determined by the probabilistic tsunami hazard analysis. The accuracy of one or the other value assignment is tied to the model accuracy, the discussion of which is copied here.

The maximum wave heights presented here were modeled by probabilistic tsunami hazard analysis techniques and approximate the magnitudes of a 1% annual probability flood. Accuracy with these estimates can be associated with uncertainty in the model results. Sources of aleatory uncertainty from fault rupture complexity and tidal stage at tsunami arrival time. For the former, the coefficient of variation is typically 20% (Geist, 2005). For the latter, the coefficient of variation is typically 7% (Mofjeld and others, 2004). A comprehensive analysis for other sources of aleatory and epistemic uncertainty has not been conducted for this pilot study.

Logical_Consistency_Report: Polygon topology is intact.
Completeness_Report: Complete.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The model raster from which this data set was derived was defined on a 2-second grid spacing (approximately 60 meters north-south) which was maintained through all calculations.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Angie J. Venturato
Publication_Date: 2005
Title:
A digital elevation model for Seaside, Oregon: Procedures, data sources, and analyses
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: NOAA, Technical Memorandum OAR
Issue_Identification: PMEL-129
Online_Linkage: <http://www.pmel.noaa.gov/pubs/PDF/vent2812/vent2812.pdf>
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Venturato, 2005
Source_Contribution: mean lower low water line
Process_Step:
Process_Description:
The extents of the 100- and 500-year maps from the Probabilistic Tsunami Hazard Analysis (Tsunami Pilot Study Working Group, 2006) were combined with the mean lower low water line (Venturato, 2005) to define these polygons.
Process_Date: 2005

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 2
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Label point
Point_and_Vector_Object_Count: 4
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 4
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 4

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0006
Longitude_Resolution: 0.0006
Geographic_Coordinate_Units: Decimal degrees
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:
Detailed_Description:
Entity_Type:
Entity_Type_Label: probzones
Entity_Type_Definition: polygon shapefile
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: AREA
Attribute_Definition: area from polygon coverage
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Feature area
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: perimeter from polygon coverage
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Feature perimeter
Attribute:
Attribute_Label: NEWZONE_
Attribute_Definition: feature number
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: ESRI internal number
Attribute:
Attribute_Label: NEWZONE_ID
Attribute_Definition: user feature number
Attribute_Definition_Source: author
Attribute_Domain_Values:
Unrepresentable_Domain: user-assigned feature number
Attribute:
Attribute_Label: PTYPE
Attribute_Definition: polygon label
Attribute_Definition_Source: author
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A
Enumerated_Domain_Value_Definition: 100-year flood polygon
Enumerated_Domain_Value_Definition_Source: probabilistic tsunami hazard analysis
Enumerated_Domain:
Enumerated_Domain_Value: B
Enumerated_Domain_Value_Definition: 500-year flood polygon
Enumerated_Domain_Value_Definition_Source: probabilistic tsunami hazard analysis

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: ARCE
Format_Version_Number: 9.1
Format_Specification: shapefile
Transfer_Size: 0.093
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://pubs.usgs.gov/ds/2006/236/>
Fees: None

Metadata_Reference_Information:
Metadata_Date: 20060829
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
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 09:37:59 2006