Short Citation:
Office for Coastal Management, 2021: NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Channel Islands, CA, https://www.fisheries.noaa.gov/inport/item/48042.

Item Identification

Title: NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Channel Islands, CA
Short Name: CA_ChannelIslands_metadata
Status: Completed
Publication Date: 2013-09
Abstract:

These data were created as part of the National Oceanic and Atmospheric Administration Office for Coastal Management's efforts to create an online mapping viewer called the Sea Level Rise and Coastal Flooding Impacts Viewer. It depicts potential sea level rise and its associated impacts on the nation's coastal areas. The purpose of the mapping viewer is to provide coastal managers and scientists with a preliminary look at sea level rise (slr) and coastal flooding impacts. The viewer is a screening-level tool that uses nationally consistent data sets and analyses. Data and maps provided can be used at several scales to help gauge trends and prioritize actions for different scenarios. The Sea Level Rise and Coastal Flooding Impacts Viewer may be accessed at: http://www.coast.noaa.gov/slr This metadata record describes the Channel Islands, CA digital elevation model (DEM), which is a part of a series of DEMs produced for the National Oceanic and Atmospheric Administration Office for Coastal Management's Sea Level Rise and Coastal Flooding Impacts Viewer described above. This DEM includes the best available lidar known to exist at the time of DEM creation that met project specifications for the Channel Islands, CA. This includes the islands of Anacapa, Santa Barbara, San Miguel, Santa Rosa, and Santa Cruz. The DEM was produced from LiDAR acquired by the U.S. Geological Survey (USGS) in 2010 for the Channel Islands. See Supplemental Information for additional information about this data set. Hydrographic breaklines were derived from LiDAR intensity imagery using intensity raster stereo models. The final DEM is hydro flattened such that water elevations are less than or equal to -1 meters. The DEM is referenced vertically to the North American Vertical Datum of 1988 (NAVD88) with vertical units of meters and horizontally to the North American Datum of 1983 (NAD83). The resolution of the DEM is approximately 5 meters.

Purpose:

The NOAA Office for Coastal Management has developed high-resolution digital elevation models (DEMs) for use in the Center's Sea Level Rise and Coastal Flooding Impacts internet mapping application. These DEMs serve as source datasets used to derive data to visualize the impacts of inundation resulting from sea level rise along the coastal United States and its territories.

Notes:

10899

Supplemental Information:

For further information or to download the dataset used to construct this DEM: 2010 U.S. Geological Survey (USGS) Topographic Lidar: Channel Islands, CA The metadata is available at: https://coast.noaa.gov/dataviewer/webfiles/metadata/usgs2010_channel_islands_template.html Final Report available at: ftp://ftp.coast.noaa.gov/pub/crs/beachmap/qa_docs/ca/usgs/channel_islands/usgs2010_channel_islands_project_report.doc Survey Control Report available at: ftp://ftp.coast.noaa.gov/pub/crs/beachmap/qa_docs/ca/usgs/channel_islands/usgs2010_channel_islands_survey_report.pdf Data download from the NOAA Office for Coastal Management Digital Coast at: http://www.coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=1398

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0000001

Longitude_Resolution: 0.0000001

Geographic_Coordinate_Units: Decimal degrees

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: 298.257222101

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988

Altitude_Resolution: 0.001

Altitude_Distance_Units: meters

Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords Earth Science > Land Surface > Geomorphic Landforms/Processes > Coastal Processes > Flooding
Global Change Master Directory (GCMD) Science Keywords Earth Science > Land Surface > Geomorphic Landforms/Processes > Coastal Processes > Sea Level Changes
Global Change Master Directory (GCMD) Science Keywords Earth Science > Land Surface > Topography > Terrain Elevation > Digital Elevation/Terrain Model (Dem)
ISO 19115 Topic Category elevation
None Bathymetry/Topography
None DEM
None Digital Elevation Model
None elevation
None flooding
None inundation
None lidar
None lidar
None sea level rise
None topography

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords Continent > North America > United States Of America > California
None Anacapa Island
None California
None Channel Islands
None Offshore Los Angeles, California
None San Miguel Island
None Santa Barbara Island
None Santa Cruz Island
None Santa Rosa Island
None US

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Data Presentation Form: Image (digital)
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of the NOAA Office for Coastal Management or its partners.

Data Set Credit: Acknowledgment of the NOAA Office for Coastal Management as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected.

Support Roles

Data Steward

CC ID: 617871
Date Effective From: 2013-09
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 617873
Date Effective From: 2013-09
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 617874
Date Effective From: 2013-09
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 617872
Date Effective From: 2013-09
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 617877
W° Bound: -120.582289
E° Bound: -118.967218
N° Bound: 34.160591
S° Bound: 33.4127402

Extent Group 1 / Time Frame 1

CC ID: 617876
Time Frame Type: Range
Start: 2012-10
End: 2012-11

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Grid Representation 1

CC ID: 617863
Dimension Count: 3
Cell Geometry: Area
Transformation Parameters Available?: No

Axis Dimension 1

Dimension Type: Row
Size: 16621

Axis Dimension 2

Dimension Type: Column
Size: 35895

Axis Dimension 3

Dimension Type: Vertical
Size: 1

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

The dataset is provided as is, without warranty to its performance, merchantable state, or fitness for any particular purpose. The entire risk associated with the results and performance of this dataset is assumed by the user. This dataset should be used strictly as a planning reference and not for navigation, permitting, or other legal purposes.

URLs

URL 1

CC ID: 617868
URL: https://coast.noaa.gov/slr
URL Type:
Online Resource

URL 2

CC ID: 617869
URL: https://coast.noaa.gov/digitalcoast/tools/slr
URL Type:
Online Resource

URL 3

CC ID: 617870
URL: https://coast.noaa.gov/
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 617903
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 617902
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 717255
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Data Quality

Horizontal Positional Accuracy:

The DEM is derived from the source lidar data. Horizontal accuracy testing is not performed on the DEM. Lidar source data assumed to meet 1 meter horizontal accuracy.

Vertical Positional Accuracy:

The DEM is derived from the source lidar data. Vertical accuracy is not tested on the DEM. Project specifications require all source lidar data used in constructing the DEM to meet FEMA Specifications for Flood Hazard Mapping.

Completeness Report:

A visual qualitative check was performed to ensure data completeness. All available lidar data known at the time of DEM creation that meets project specifications has been used to develop the DEM. Known data gaps may exist where lidar coverage was incomplete.

Conceptual Consistency:

Data covers the tile scheme provided for the project area. Elevation data checked for anomalous elevation values outside expected range.

Lineage

Process Steps

Process Step 1

CC ID: 617857
Description:

The data set listed below was used to develop the DEM. For further information about this data set or to download the data, please see the link to the data set in the Supplemental Information field. 1. 2010 U.S.Geological Survey (USGS) Topographic Lidar: Channel Islands, CA 2. Hydrographic breaklines derived from LiDAR intensity imagery using intensity raster stereo models, were supplied with the lidar data.

Process Date/Time: 2012-01-01 00:00:00

Process Step 2

CC ID: 617858
Description:

Class 2, ground LiDAR points are exported from the LAS files into an Arc Geodatabase (GDB) in multipoint format. Hydro breaklines are assigned an elevation of -1 meters and loaded into an Arc GDB. An ESRI Terrain is generated from these inputs.

Process Date/Time: 2012-01-01 00:00:00

Process Step 3

CC ID: 617859
Description:

The ESRI Terrain is converted to 5 separate DEMs in Erdas image file format with a cell size of 3 meters. The DEMs are reviewed in Global Mapper for incorrect elevations and artifacts that are introduced from source inputs or during the raster creation process. Corrections are applied to the DEMs and reprocessed for review.

Process Date/Time: 2012-01-01 00:00:00

Process Step 4

CC ID: 617860
Description:

All DEMs are loaded into Global Mapper for the last review. During this last review, an analyst checks to ensure full, complete coverage, no issues along DEM boundaries, DEMs seamlessly edge-match, and that there are no remaining processing artifacts in the dataset. Once approved, DEMs are re-projected to the NAD83 geographic coordinate system. The 5 separate DEMS are converted to one DEM.

Process Date/Time: 2012-01-01 00:00:00

Process Step 5

CC ID: 617861
Description:

For data distribution purposes, NOAA OCM converted the cell resolution of the DEM from 3 meters to 5 meters.

Process Date/Time: 2012-01-01 00:00:00

Catalog Details

Catalog Item ID: 48042
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 14:14+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-07-02 15:17+0000
Metadata Record Published: 2018-02-08
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-02-09