Coastal Base Flood Elevations, Ott Water Study

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: Coastal Base Flood Elevations, Ott Water Study
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 flood elevations for the 10, 50, 100, and 500 year coastal flood events for various coastal communities in Northern California.
Purpose:
Depict the estimated coastal flood elevations for coastal communities in Northern California.
Supplemental_Information:
Data was derived from the Ott Water Engineers, Inc. (1984) Northern California Coastal Flood Studies, prepared for the Federal Emergency Management Agency.
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: -124.219987
East_Bounding_Coordinate: -121.787860
North_Bounding_Coordinate: 41.750949
South_Bounding_Coordinate: 36.602254
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:
Using the USGS 7.5 minute topo maps, provided in the report, which had the study areas and transects drawn in, we used the heads-up-digitizing technique to draw the transect lines in a new shapefile over a DRG of the USGS 7.5 minute maps.
Time_of_Day: 10222000
Process_Date: 6/2008
Process_Step:
Time_of_Day: 10231200
Process_Date: 6/2008
Process_Description:
The polyline to point tool in ETGeoWizards was then used to extract the midpoint of the transect lines.
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: Ott Water Engineers, Inc.
Publication_Date: 1984
Title:
Northern California Coastal Flood Studies, prepared for the Federal Emergency Management Agency.
Geospatial_Data_Presentation_Form: paper map
Publication_Information:
Process_Step:
Time_of_Day: 12013100
Process_Description:
Point ID and NGVD 29 elevations were input into an excel spreadsheet. Elevation values were converted to meters.
Process_Date: 6/2008
Process_Step:
Time_of_Day: 16050600
Process_Date: 6/2008
Process_Description:
The shapefile and Excel spreadsheet were joined based on point ID and exported to a new shapefile.
Process_Step:
Process_Description:
Elevation values were then converted from NGVD 29 to NAVD 88 using the Vertcon program.
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 the 100-yr flood are based on results from 1984 Ott Water Engineers study. See report for accuracy of elevations. Data was converted from NGVD29 feet to NGVD meters, then to NAVD88 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: 0.002
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: 59

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
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
Geographic:
Geographic_Coordinate_Units: Decimal degrees
Latitude_Resolution: 0.000000
Longitude_Resolution: 0.000000
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:
Attribute:
Attribute_Label: NGVD_500yr
Attribute_Definition: 500 year flood elevation NGVD29 (feet)
Attribute:
Attribute_Label: LOCATION
Attribute:
Attribute_Label: NGVD_10YR
Attribute:
Attribute_Label: NGVD_50YR
Attribute:
Attribute_Label: NGVD_100YR
Attribute:
Attribute_Label: NGVD_500YR
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: Location
Attribute_Definition: Location of transect
Attribute:
Attribute_Label: NGVD_100yr
Attribute_Definition: 100 year flood elevation NGVD29 (feet)
Attribute:
Attribute_Label: NGVD_10_M
Entity_Type:
Entity_Type_Label: Ott_water_flood_elev
Attribute:
Attribute_Label: NGVD_50_M
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: NGVD_100_M
Attribute:
Attribute_Label: NGVD_500_M
Attribute:
Attribute_Label: NAVD_10YR
Attribute:
Attribute_Label: NAVD_50YR
Attribute:
Attribute_Label: NAVD_100YR
Attribute:
Attribute_Label: NAVD_500YR
Attribute:
Attribute_Label: NAVD_100_F

Generated by mp version 2.9.6 on Thu Feb 26 11:46:29 2009