Slide Menu
Search Help Show/Hide Menu
Short Citation:
Office for Coastal Management, 2023: NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Pago Pago Weather Service Office (PPG WSO) - Tutuila, https://www.fisheries.noaa.gov/inport/item/59071.

Item Identification

Title: NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Pago Pago Weather Service Office (PPG WSO) - Tutuila
Short Name: AS_metadata.xml
Status: Completed
Publication Date: 2014-04
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: https://www.coast.noaa.gov/slr

This metadata record describes the Pago Pago Weather Service (PPG WSO) 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. The DEMs created for this project were developed using the NOAA National Weather Service's Weather Forecast Office (WFO) boundaries. This DEM includes the best available lidar known to exist at the time of DEM creation that met project specifications for the Pago Pago WSO, which includes the following islands in American Samoa: Tutuila, Aunu'u, Ofu, Olosega, Tau, and Rose Atoll.

The DEM is derived from the following source.

1. 2012 American Samoa Lidar - acquired by NOAA and partners

Hydrographic breaklines were delineated from LiDAR intensity imagery generated from the LiDAR datasets. The final DEM is hydro flattened such that water elevations are less than or equal to -0.5 meters.

The DEM is referenced vertically to the American Samoa Vertical Datum of 2002 (ASVD02) with vertical units of meters and horizontally to the North American Datum of 1983 (PACP00). The resolution of the DEM is 3 meters. The spatial information section in this metadata may indicate NAD83(PA11) horizontally because the Inport metadata system doesn't know PACP00.

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.

Supplemental Information:

The data set used to construct this DEM is available via the following:

1. 2012 American Samoa Lidar https://www.coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=2490

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
UNCONTROLLED
ISO 19115 Topic Category elevation
None Bathymetry/Topography
None DEM
None Digital Elevation Model
None flooding
None inundation
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
Global Change Master Directory (GCMD) Location Keywords
VERTICAL LOCATION > LAND SURFACE
UNCONTROLLED
None American Samoa
None Leone
None Pago Pago
None Tutuila
None U.S. Coastline
None US
None Utulei

Instrument Keywords

Thesaurus Keyword
UNCONTROLLED
Global Change Master Directory (GCMD) Instrument Keywords Earth Remote Sensing Instruments > Active Remote Sensing > Profilers/Sounders > Lidar/Laser Sounders > LIDAR > Light Detection and Ranging

Platform Keywords

Thesaurus Keyword
UNCONTROLLED
Global Change Master Directory (GCMD) Platform Keywords Aircraft > Aircraft

Physical Location

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

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: Elevation
Maintenance Frequency: None Planned
Data Presentation Form: Raster
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the 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 suchacknowledgment as is standard for citation and legal practices for data source is expected., Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS),Office for Coastal Management (OCM)

Support Roles

Data Steward

CC ID: 900447
Date Effective From: 2020
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: 900446
Date Effective From: 2020
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: 900448
Date Effective From: 2020
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: 900449
Date Effective From: 2020
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: 900454
W° Bound: -170.847226
E° Bound: -169.41842
N° Bound: -14.155281
S° Bound: -14.37428
Description

American Samoa

Extent Group 1 / Time Frame 1

CC ID: 900451
Time Frame Type: Discrete
Start: 2012-06-25

Extent Group 1 / Time Frame 2

CC ID: 900452
Time Frame Type: Discrete
Start: 2012-06-27

Extent Group 1 / Time Frame 3

CC ID: 900453
Time Frame Type: Discrete
Start: 2012-07-05

Spatial Information

Reference Systems

Reference System 1

CC ID: 900488

Coordinate Reference System

CRS Type: Geographic 2D
EPSG Code: EPSG:6322
EPSG Name: NAD83(PA11)
See Full Coordinate Reference System Information

Reference System 2

CC ID: 900489

Coordinate Reference System

CRS Type: Vertical
EPSG Code: EPSG:6643
EPSG Name: ASVD02 height
See Full Coordinate Reference System Information

Access Information

Security Class: Unclassified
Data Access Procedure:

Data is available online for bulk or custom downloads

Data Access Constraints:

None

Data Use Constraints:

Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations.

Distribution Information

Distribution 1

CC ID: 900455
Start Date: 2020-03-23
End Date: Present
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9062
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2020 - Present)
File Name: Customized Download
Description:

Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base.

File Type: Zip
Compression: Zip

Distribution 2

CC ID: 900456
Start Date: 2020-03-23
End Date: Present
Download URL: https://coast.noaa.gov/htdata/raster2/elevation/SLR_Viewer_DEM_AS_9062
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2020 - Present)
File Name: Bulk Download
Description:

Bulk download of data files in the original coordinate system.

File Type: GeoTIFF

URLs

URL 1

CC ID: 900444
URL: https://coast.noaa.gov/
Name: NOAA's Office for Coastal Management (OCM) website
URL Type:
Online Resource
File Resource Format: HTML
Description:

Information on the NOAA Office for Coastal Management (OCM)

URL 2

CC ID: 900445
URL: https://coast.noaa.gov/dataviewer/
Name: NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV)
URL Type:
Online Resource
File Resource Format: HTML
Description:

The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer.

URL 3

CC ID: 900486
URL: https://www.coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=2490
Name: Lidar Point Cloud
URL Type:
Online Resource
Description:

Access to the lidar point cloud used to derive this DEM.

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

Sources

2012 American Samoa Lidar

CC ID: 900485
Contact Role Type: Originator
Contact Type: Organization
Contact Name: NOAA Office for Coastal Management
Citation URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2490
Citation URL Name: Data Access Viewer: 2012 American Samoa Lidar
Citation URL Description:

Custom download for lidar point cloud

Process Steps

Process Step 1

CC ID: 900436
Description:

The following datasets were used to develop the DEM:

1. 2012 American Samoa Lidar

Hydrographic breaklines delineated from LiDAR intensity imagery generated from the LiDAR datasets.

Process Date/Time: 2013-01-01 00:00:00
Process Contact: NOAA Office for Coastal Management (NOAA/OCM)
Phone (Voice): (843) 740-1202
Email Address: coastal.info@noaa.gov
Source: 2012 American Samoa Lidar

Process Step 2

CC ID: 900437
Description:

GeoCue software was used to develop LiDAR intensity imagery from the LiDAR. The raster resolution was 1ft or 0.3 m.

Process Date/Time: 2013-01-01 00:00:00

Process Step 3

CC ID: 900438
Description:

LiDAR intensity images were viewed in 2-D in ArcMap. Hydrographic features were collected as 2D breaklines.

Process Date/Time: 2013-01-01 00:00:00

Process Step 4

CC ID: 900439
Description:

Class 2, ground LiDAR points are exported from the LAS files into a file geodatabase (GDB) in multipoint format.

Hydro breaklines are assigned an elevation of 0 meters and loaded into a geodatabase. An Esri Terrain is generated from these inputs.

Process Date/Time: 2013-01-01 00:00:00

Process Step 5

CC ID: 900440
Description:

The Esri terrain is reviewed in ArcMap and converted to a DEM in Erdas image file format with a cell size of 3 meters. The DEM is 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: 2013-01-01 00:00:00

Process Step 6

CC ID: 900441
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.

Process Date/Time: 2013-01-01 00:00:00

Process Step 7

CC ID: 900442
Description:

Re-projected DEMs are further assessed for quality and consistency using Global Mapper. Fine-scale features, including bridges over narrow water bodies and small islands, are assessed for accuracy and edited accordingly. Once the DEMs are polished, they are re-projected to the Universal Transverse Mercator coordinate system.

Process Date/Time: 2013-01-01 00:00:00

Catalog Details

Catalog Item ID: 59071
GUID: gov.noaa.nmfs.inport:59071
Metadata Record Created By: Kirk Waters
Metadata Record Created: 2020-03-23 07:01+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2020-03-23
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2020-03-23
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2021-03-23