Coastal Base Flood Elevations, Flood Insurance Studies

Metadata:

• Identification_Information
• Data_Quality_Information
• Metadata_Reference_Information
• Distribution_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information

Identification_Information:

Citation:

Citation_Information:

Online_Linkage: <http://www.pacinst.org/reports/sea_level_rise>

Originator: Matthew Heberger

Publication_Date: 2009

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publisher: Pacific Institute

Publication_Place: Oakland CA

Series_Information:

Series_Name: The Impacts of Sea-Level Rise on the California Coast

Originator: Pablo Herrera

Title: Coastal Base Flood Elevations, Flood Insurance Studies

Larger_Work_Citation:

Citation_Information:

Originator: Matthew Heberger

Originator: Heather Cooley

Originator: Peter Gleick

Originator: Pablo Herrera

Publication_Date: 2009

Title: The Impacts of Sea-Level Rise on the California Coast

Publication_Information:

Publication_Place: Oakland CA

Publisher: Pacific Institute

Online_Linkage: <http://www.pacinst.org/reports/sea_level_rise>

Description:

Abstract:

This data layer is a compilation of all of the coastal flood elevation data available from the published Flood Insurance Studies for the California coast.

Purpose:

To develop a digital layer showing the Base Flood Elevation for coastal flooding for the entire California coast.

Supplemental_Information:

The data was assembled by county and community for all California coastal communities where Flood Insurance Studies (FIS) are published. For counties where updated DFIRM's were available, the FIS was not examined and no data was added. The points were digitized over USGS 7.5-minute Topo Maps based on the descriptions of the transects given in the FIS.

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500

Time_Period_of_Content:

Currentness_Reference: Dependent on source data

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1983

Ending_Date: 2008

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -120.907315

East_Bounding_Coordinate: -117.004756

North_Bounding_Coordinate: 35.453362

South_Bounding_Coordinate: 32.630151

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: climate change

Theme_Keyword: sea level rise

Theme_Keyword: coastal flood

Theme_Keyword: 100 year coastal flood

Theme_Keyword: oceans and coastal

Theme_Keyword: 100 year flood

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: United States of America

Place_Keyword: California

Place_Keyword: San Francisco Bay

Access_Constraints:

None. Data are freely downloadable and available for use in GIS and mapping subject the use constraints below.

Use_Constraints:

The data are freely redistributable with proper metadata and source attribution. Please reference the Pacific Institute as the originator of the dataset in any future products or research derived from these data. This information is being made available for informational purposes only. Users of this information agree by their use to hold blameless the State of California, and its respective officers, employees, agents, contractors, and subcontractors for any liability associated with its use in any form. This work shall not be used to assess actual coastal hazards, insurance requirements, or property values and specifically shall not be used in lieu of Flood Insurance Studies and Flood Insurance Rate Maps issued by the Federal Emergency Management Agency (FEMA).

Security_Information:

Security_Classification: Level 1: Public

Security_Handling_Description:

Public data is accessible to all requester categories, including the General Public, with limited to no restrictions.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Pacific Institute

Contact_Person: Matthew Heberger

Contact_Position: Research Associate/GIS Manager

Contact_Address:

Address_Type: mailing address

Address: 654 13th Street

City: Oakland

State_or_Province: CA

Postal_Code: 94612

Country: USA

Address: Preservation Park

Contact_Voice_Telephone: (510) 251-1600

Contact_Facsimile_Telephone: (510) 251-2203

Contact_Electronic_Mail_Address: mheberger@pacinst.org

Hours_of_Service: 9:00 AM to 5:00 PM

Cross_Reference:

Citation_Information:

Publication_Information:

Larger_Work_Citation:

Citation_Information:

Series_Information:

Publication_Information:

Series_Information:

Data_Quality_Information:

Lineage:

Process_Step:

Process_Description:

Locations of points were digitized from paper maps and/or brief text descriptions to shapefiles using heads-up-digitizing over DRG versions of USGS 1:24,000 7.5 minute topo maps.

Time_of_Day: 10222000

Process_Step:

Process_Description:

Point ID, location descriptions, wave-runup and wave-setup elevations (feet), for the 10, 100 and 500 year flood events, were input into an excel spreadsheet.

Time_of_Day: 10231200

Process_Date: 6/2008

Source_Information:

Type_of_Source_Media: ESRI shapefile

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: variable

Source_Currentness_Reference: Variable on source data

Source_Citation:

Citation_Information:

Online_Linkage:

<http://msc.fema.gov/webapp/wcs/stores/servlet/CategoryDisplay?catalogId=10001&storeId=10001&categoryId=12002&langId=-1&userType=G&type=7&dfirmCatId=12009>

Originator: Federal Emergency Management Agency

Title: FEMA FIS reports

Process_Step:

Process_Description:

The shapefile and Excel spreadsheet were joined based on point ID and exported to a new shapefile.

Time_of_Day: 12013100

Logical_Consistency_Report: The dataset is topologically correct.

Completeness_Report: Data set has been visually inspected.

Attribute_Accuracy:

Attribute_Accuracy_Report:

The attributes are transcribed verbatim from the FIS reports. See FIS reports for statements on accuracy of flood elevations. Data was converted from NGVD29 feet to NGVD29 meters, then to NAVD88 using the Vertcon tool.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The location of the points is described approximate through brief text decriptions in the FIS reports, therefore the locations of the points are approximates only. The text descriptions of the locations are included in the "Location" attribute field, if a cross reference is needed. Where paper maps were provided in addition to text descrtiptions, approximate locations were digitized over DRG versions of USGS 1:24,000 7.5 minute topo maps.

Metadata_Reference_Information:

Metadata_Date: 20090224

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Person: Matthew Heberger

Contact_Organization: Pacific Institute

Contact_Address:

Address_Type: mailing

City: Oakland

State_or_Province: CA

Postal_Code: 94612

Address:

654 13th Street, Preservation Park

Country: USA

Contact_Voice_Telephone: (510) 251-1600

Contact_Position: Research Associate/GIS Manager

Contact_Facsimile_Telephone: (510) 251-2203

Contact_Electronic_Mail_Address: mheberger@pacinst.org

Hours_of_Service: 9:00 AM to 5:00 PM

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile

Distribution_Information:

Resource_Description: Downloadable Data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ESRI data format, dependent upon request

Format_Specification: Files are zipped using the 7zip software.

Transfer_Size: 0.005

Fees: None

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Pacific Institute

Contact_Person: Matthew Heberger

Contact_Position: Research Associate/GIS Manager

Contact_Address:

Address_Type: mailing

Address:

654 13th Street, Preservation Park

City: Oakland

State_or_Province: CA

Postal_Code: 94612

Country: USA

Contact_Voice_Telephone: (510) 251-1600

Contact_Facsimile_Telephone: (510) 251-2203

Contact_Electronic_Mail_Address: mheberger@pacinst.org

Hours_of_Service: 9:00 AM to 5:00 PM

Distribution_Liability:

The data are freely redistributable with proper metadata and source attribution. Please reference the Pacific Institute as the originator of the dataset in any future products or research derived from these data.
This information is being made available for informational purposes only. Users of this information agree by their use to hold blameless the State of California, and its respective officers, employees, agents, contractors, and subcontractors for any liability associated with its use in any form. This work shall not be used to assess actual coastal hazards, insurance requirements, or property values and specifically shall not be used in lieu of Flood Insurance Studies and Flood Insurance Rate Maps issued by the Federal Emergency Management Agency (FEMA).

Technical_Prerequisites:

These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 167

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Planar_Distance_Units: meters

Coordinate_Representation:

Abscissa_Resolution: 0.000000

Ordinate_Resolution: 0.000000

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 34.000000

Standard_Parallel: 40.500000

Longitude_of_Central_Meridian: -120.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 0.000000

False_Northing: -4000000.000000

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

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988

Altitude_Distance_Units: meters

Altitude_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: FIS_flood_elev

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: Feat_ID

Attribute_Definition: Feature ID reference for each point from FIS

Attribute:

Attribute_Label: Location

Attribute_Definition: Verbatim text description of location from FIS

Attribute:

Attribute_Label: WR_10yr

Attribute_Definition: Wave runup for 10 year flood event in feet

Attribute:

Attribute_Label: WR_100yr

Attribute_Definition: Wave runup for 100 year flood event in feet

Attribute:

Attribute_Label: WR_500yr

Attribute_Definition: Wave runup for 500 year flood event in feet

Attribute:

Attribute_Label: WS_10yr

Attribute_Definition: Wave setup for 10 year flood event in feet

Attribute:

Attribute_Label: WS_100yr

Attribute_Definition: Wave setup for 100 year flood event in feet

Attribute:

Attribute_Label: WS_500yr

Attribute_Definition: Wave setup for 500 year flood event in feet

Attribute:

Attribute_Label: County

Attribute_Definition: County of FIS

Attribute:

Attribute_Label: Community

Attribute_Definition: Community of FIS

Attribute:

Attribute_Label: Eff_date

Attribute_Definition: Date that FIS was last updated