San Francisco Bay Levees

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: 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: San Francisco Bay Levees
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:
The bay area levees map depicts the locations of levees around the San Francisco Bay Area. It was created using a combination of the Digital Flood Insurance Rate Maps (DFIRM) data from FEMA and digitized lines from USGS 7.5 minute Topo maps and Google Earth aerial imagery. The data source for each feature is described in the Source attribute field as derived from either FEMA or from the Pacific Institute.
Purpose:
Calculate length of structures and extent of protection provided by levees and seawalls.
Supplemental_Information:
The DFIRM data is considered preliminary for the purposes of rate zones however the location and quantity of protection sturctures is not expected to be updated before the final publication of the DFIRM dataset.
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: Data reference
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2008
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -123.011689
East_Bounding_Coordinate: -116.631735
North_Bounding_Coordinate: 38.827633
South_Bounding_Coordinate: 32.611509
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: levees
Theme_Keyword: coastal protection structures
Theme_Keyword: protection structures
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:
Single_Date/Time:
Calendar_Date: 2008
Source_Currentness_Reference: ground condition
Source_Citation:
Citation_Information:
Originator: Federal Emergency Managment Agency
Title: Digital Flood Insurance Rate Map (DFIRM)
Online_Linkage: www.msc.fema.gov
Publication_Information:
Publication_Place: Washington DC
Publisher: Federal Emergency Management Agency
Process_Step:
Process_Description:
All final and preliminary DFIRM maps were appended into one document
Process_Date: 05/2008
Process_Step:
Process_Description:
In a separate shapefile, all levees shown on USGS 7.5 minute topo maps within 2 kilometers of the coast were digitized over DRG files of the topo maps
Process_Date: 05/2008
Process_Step:
Process_Description:
In Google earth a .kmz file was created in which all structures that appeared to protect coastal areas were digitized. Presence of levees was decided based on visual attributes in aerial images of known levees. Where similar attributes were seen elsewhere, and where development appeared to be protected, a levee was drawn.
Process_Date: 05/2008
Process_Step:
Process_Description: All files were appended into one shapefile.
Process_Date: 05/2008
Logical_Consistency_Report: The dataset is topologically correct.
Completeness_Report:
The entire bay area was mapped within 2 kilometers of the coastline for levees included on USGS Topo Maps and all levees are included. The data was not field verified and this is not considered as an official count of all coastal protection features. For the completeness of the FEMA data see the attached metadata.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The digitized levee features have not been ground verified, therefore the accuracy cannot be accounted for. For the FEMA data accuracy, see the DFIRM metadata.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The digitized levee features have not been ground verified, therefore the accuracy cannot be accounted for. For the FEMA data accuracy, see the DFIRM metadata.
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: 0.675
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: String
Point_and_Vector_Object_Count: 1895
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
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: SF_Bay_levees
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: STRUCT_TYP
Attribute:
Attribute_Label: WTR_NM
Attribute:
Attribute_Label: SOURCE_CIT
Attribute_Definition: Source of derived data
Attribute:
Attribute_Label: Source
Generated by mp version 2.9.6 on Thu Feb 26 11:46:36 2009