San Francisco High Tide 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: 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
Title: San Francisco High Tide Elevations
Originator: Pablo Herrera
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 points depicted are attributed the highest estimated 100-year tide elevation for locations surrounding the San Francisco Bay.
Purpose:
Depict the estimated 100-year highest tide elevations for the San Francisco Bay.
Supplemental_Information:
Data was derived from the US Army Corps of Engineers' 1984 publication, San Francisco Bay Tidal Stage vs. Frequency Study.
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: Study has not been updated
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1984
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.506290
East_Bounding_Coordinate: -121.943464
North_Bounding_Coordinate: 38.154828
South_Bounding_Coordinate: 37.429534
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 tide stations and associated data were digitized from paper maps to shapefiles using heads-up-digitizing. Original data was provided on USGS 1:24,000 paper topo maps and created in a shapefile over DRG topo maps at the same extent
Time_of_Day: 10222000
Process_Date: 6/2008
Process_Step:
Process_Description:
Point ID and NGVD 29 elevations were input into an excel spreadsheet. Elevation values were converted to meters.
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: 1984
Source_Currentness_Reference:
Digital format created at time of publication, data based on 1984 report
Source_Citation:
Citation_Information:
Originator: United States Army Corps of Engineers
Publication_Date: 1984
Title: San Francisco Bay Tidal Stage vs. Frequency Study.
Geospatial_Data_Presentation_Form: paper map
Publication_Information:
Publication_Place: San Francisco, Ca
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
Process_Step:
Process_Description:
Elevation values were then converted from NGVD 29 to NAVD 88 using the Vertcon program.
Time_of_Day: 16050600
Process_Date: 6/2008
Logical_Consistency_Report: The dataset is topologically correct.
Completeness_Report: Data set has been visually inspected.
Attribute_Accuracy:
Attribute_Accuracy_Report:
Elevations for 100-yr flood are based on results from 1984 USACE report. See report for accuracy of elevations. Data was converted from NGVD29 feet to NGVD29 meters, then to NAVD88 meters using the Vertcon tool.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Locations of points are approximate. Locations were digitized based on paper versions of USGS 1:24,000 7.5 minute topo maps and located on DRG versions of the USGS topo maps at the same resolution.

Metadata_Reference_Information:
Metadata_Date: 20090226
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: 0.001
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: 52

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_high_tide_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: INDEX_NO
Attribute_Definition:
index filed created for each tide station where data was collected
Attribute:
Attribute_Label: FT_NGVD29
Attribute_Definition:
Original values supplied by USACE study in vertical datum of NGVD29, feet.
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: See USACE report
Attribute:
Attribute_Label: M_NAVD88
Attribute_Definition:
Elevation value after converting feet to meters and NGVD29 to NAVD88 using the Vertcon tool.

Generated by mp version 2.9.6 on Thu Feb 26 11:46:28 2009