Northern California Base Flood Elevations

Metadata:

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: raster 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: Northern California Base Flood Elevations
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
Publisher: Pacific Institute
Online_Linkage: <http://www.pacinst.org/reports/sea_level_rise>
Description:
Abstract:
The Base Flood Elevation, representing the elevation of the 100-year coastal flood, is derived for the entire California coastline. Elevation data is in NAVD88, rounded to the nearest half foot. Euclidean Allocation was used to extrapolate the elevations from the BFE line 10 kilometers inland from the coast. The extent of this dataset covers fthe California coast from the Oregon border south to Monterey Bay.
Purpose:
This dataset was developed to estimate extents of flooding given the 100-year flood event for the Northern California coast. This layer is used as the base upon which impacts of a 1.4 meter sea-level rise are estimated.
Supplemental_Information:
The Base Flood Elevation data was estimated by Philip WIlliams & Associates, LTD, under contract with the Pacific Institute, based on FEMA data. For details concerning methods, see the memorandum from PWA to the Pacific Institute.
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: Based on FEMA flood study dates
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: -124.447423
East_Bounding_Coordinate: -121.690851
North_Bounding_Coordinate: 42.177310
South_Bounding_Coordinate: 36.473470
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
Theme_Keyword: BFE
Theme_Keyword: Base Flood Elevation
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:
Source_Information:
Type_of_Source_Media: ESRI shapefile
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1983
Ending_Date: 2008
Source_Currentness_Reference: Variable depending on FEMA FIS update dates
Source_Citation:
Citation_Information:
Originator: Bob Battalio, PE
Originator: Phillip Williams & Associates, LTD
Publication_Date: 9/19/2008
Title: Coastal Base Flood Elevation Estimates
Online_Linkage: <http://www.pacinst.org/reports/sea_level_rise>
Process_Step:
Time_of_Day: 12013100
Process_Date: 9/2008
Process_Description: See PWA memo for detailed methods on BFE estimation.
Process_Step:
Time_of_Day: 12273200
Process_Description:
BFE elevations were converted to meters, then meters were converted to centimeters so that data was stored as an integer for faster processing and minimizing file size.
Process_Date: 9/2008
Process_Step:
Process_Description:
The Euclidean Allocation tool was used to extrapolate the flood elevation values to all cells within 10,000 meters surrounding the coastline.
Time_of_Day: 12532200
Process_Date: 9/2008
Logical_Consistency_Report: The dataset is topologically correct.
Completeness_Report: Data set has been visually inspected.
Attribute_Accuracy:
Attribute_Accuracy_Report:
See PWA memorandum for methods and original FEMA Flood Insurance Studies for attrubute accuracy.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
See PWA memo, Ott_water_flood_elev.shp metadata, and FIS_flood_elev.shp metadata
Lineage:
Metadata_Reference_Information:
Metadata_Date: 20090219
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: 27.018
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: Raster
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 582
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 63217
Column_Count: 22769
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Planar_Distance_Units: meters
Coordinate_Representation:
Abscissa_Resolution: 10.000000
Ordinate_Resolution: 10.000000
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
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: bfe_n_ras.vat
Attribute:
Attribute_Label: Rowid
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: VALUE
Attribute_Definition:
Value denotes the elevation of the BFE for the given cell, in NAVD88 centimeters.
Attribute:
Attribute_Label: COUNT
City: Oakland
Generated by mp version 2.9.6 on Thu Feb 26 11:46:30 2009