59071
NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Pago Pago Weather Service Office (PPG WSO) - Tutuila
AS_metadata.xml
Data Set
Published / External
47844
DEMs
Project
Completed
2014-04
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.
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.
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
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
Theme
ISO 19115 Topic Category
elevation
Spatial
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
Spatial
Global Change Master Directory (GCMD) Location Keywords
VERTICAL LOCATION > LAND SURFACE
Instrument
Global Change Master Directory (GCMD) Instrument Keywords
LIDAR > Light Detection and Ranging
Platform
Global Change Master Directory (GCMD) Platform Keywords
Airplane > Airplane
Theme
DEM
Theme
flooding
Theme
inundation
Theme
sea level rise
Office for Coastal Management
Charleston
SC
Data Set
Elevation
None Planned
Raster
Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners
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)
Data Steward
2020
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Distributor
2020
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Metadata Contact
2020
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Point of Contact
2020
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Ground Condition
-170.847226
-169.41842
-14.155281
-14.37428
American Samoa
Discrete
2012-06-25
Discrete
2012-06-27
Discrete
2012-07-05
Geographic 2D
EPSG:6322
NAD83(PA11)
NAD83 (National Spatial Reference System PA11)
GRS 1980
6378137
298.257222101
1
Geodetic Lattitude
Lat
degree
north
2
Geodetic Longitude
Lon
degree
east
Vertical
EPSG:6643
ASVD02 height
American Samoa Vertical Datum of 2002
1
Gravity-related height
H
metre
up
Unclassified
Data is available online for bulk or custom downloads
None
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.
2020-03-23
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9062
2020
Organization
NOAA Office for Coastal Management
Customized Download
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.
Zip
Zip
2020-03-23
https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/SLR_Viewer_DEM_AS_9062/index.html
2020
Organization
NOAA Office for Coastal Management
Bulk Download
Bulk download of data files in the original coordinate system.
GeoTIFF
GeoTIFF
https://coast.noaa.gov/
NOAA's Office for Coastal Management (OCM) website
Online Resource
HTML
Information on the NOAA Office for Coastal Management (OCM)
https://coast.noaa.gov/dataviewer/
NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV)
Online Resource
HTML
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.
https://www.coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=2490
Lidar Point Cloud
Online Resource
Access to the lidar point cloud used to derive this DEM.
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.
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.
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.
Data covers the tile scheme provided for the project area. Elevation data checked for anomalous elevation values outside expected range.
2012 American Samoa Lidar
Organization
NOAA Office for Coastal Management
Originator
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2490
Data Access Viewer: 2012 American Samoa Lidar
Custom download for lidar point cloud
1
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.
2013-01-01T00:00:00
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
2012 American Samoa Lidar
2
GeoCue software was used to develop LiDAR intensity imagery from the LiDAR. The raster resolution was 1ft or 0.3 m.
2013-01-01T00:00:00
3
LiDAR intensity images were viewed in 2-D in ArcMap. Hydrographic features were collected as 2D breaklines.
2013-01-01T00:00:00
4
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.
2013-01-01T00:00:00
5
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.
2013-01-01T00:00:00
6
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.
2013-01-01T00:00:00
7
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.
2013-01-01T00:00:00
gov.noaa.nmfs.inport:59071
Kirk Waters
2020-03-23T07:01:20
Kirk Waters
2024-01-10T19:12:13
2024-01-10
Office for Coastal Management
OCM
1002
Public
No
2020-03-23
1 Year
2021-03-23