Projected coastal flooding inundation depths for +0.25, +0.50, +1.00, +1.50, +2.00, and +3.00 meter sea-level rise scenarios in American Samoa

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Theresa A. Fregoso
Originator: Curt D. Storlazzi
Publication_Date: 20240910
Title:
Projected coastal flooding inundation depths for +0.25, +0.50, +1.00, +1.50, +2.00, and +3.00 meter sea-level rise scenarios in American Samoa
Geospatial_Data_Presentation_Form: GeoTiff
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9RIQ7S7
Publication_Information:
Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P9RIQ7S7
Larger_Work_Citation:
Citation_Information:
Originator: Kristen C. Alkins
Originator: Camila L. Gaido
Originator: Borja G. Reguero
Originator: Curt D. Storlazzi
Originator: Theresa A. Fregoso
Publication_Date: 2024
Title:
Projected coastal flooding extents and depths for 1-, 20-, and 100-year return interval storms and 0.00, +0.25, +0.50, +1.00, +1.50, +2.00, and +3.00 meter sea-level rise scenarios in the Hawaiian, Mariana, and American Samoan Islands
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9RIQ7S7
Publication_Information:
Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P9RIQ7S7
Description:
Abstract:
This data release provides flood depth GeoTIFFs based on sea-level rise (SLR) for the coast of the most populated American Samoa s most populated islands of Tutuila, Ofu-Olosega, and Ta'u. Digital elevation models were used to extract SLR flooded areas at 10-m2 resolution along the coastlines for +0.25 m, +0.50 m, +1.00 m, +1.50 m, +2.00 m, and +3.00 m SLR scenarios.
Purpose:
These flood extent files were created to evaluate coastal flooding in the most populated American Samoan Islands of Tutuila, Ofu-Olosega, and Ta'u due to climate change influenced SLR. The data are intended to provide a spatially explicit, rigorous valuation of how, where, and when climate change influenced SLR increase coastal storm-induced flooding to help identify areas where management and/or restoration could potentially help reduce the risk to, and increase the resiliency of, the coastal communities in American Samoa. The data can be used with geographic information systems (GIS) software for research purposes. The methods follow a sequence of steps derived from Storlazzi and others (2019, 2021) and Reguero and others (2021) that integrate physics-based oceanographic and coastal engineering modeling, along with ecologic and geospatial data and tools, to quantify the role of climate change influenced SLR in increasing coastal flooding hazards.
Supplemental_Information:
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Although this Federal Geographic Data Committee-compliant metadata file is intended to document the dataset in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20240315
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -170.846546803
East_Bounding_Coordinate: -169.416950927
North_Bounding_Coordinate: -14.153287314
South_Bounding_Coordinate: -14.37292361
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Predictions
Theme_Keyword: Physical Habitats and Geomorphology
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Coastal Processes
Theme_Keyword: Geospatial Datasets
Theme_Keyword: Spatial Analysis
Theme_Keyword: Climate Change
Theme_Keyword: Storms
Theme_Keyword: Floods
Theme_Keyword: Sea-level Change
Theme_Keyword: Mathematical modeling
Theme_Keyword: Effects of climate change
Theme_Keyword: Earth sciences
Theme_Keyword: Environmental Justice
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: Flooding
Theme_Keyword: Sea level change
Theme_Keyword: Waves
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Pacific Coastal and Marine Science Center
Theme_Keyword: PCMSC
Theme_Keyword: Environmental Equity
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:661ddc6cd34e7eb9eb7e3c20
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Territory of American Samoa
Place_Keyword: Ofu Island
Place_Keyword: Olosega Island
Place_Keyword: Tau Island
Place_Keyword: Tutuila Island
Access_Constraints: No access constraints
Use_Constraints:
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey and University of California, Santa Cruz as the originator(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Contact_Person: PCMSC Science Data Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov
Native_Data_Set_Environment:
Environment as of Metadata Creation: Microsoft Windows 10 Version 10.0 (Build 19045); Esri ArcGIS 13.2.0.49743. Results were output as GeoTIFFs.
Cross_Reference:
Citation_Information:
Originator: Curt D. Storlazzi
Originator: Borja G. Reguero
Originator: Aaron D. Cole
Originator: Eric Lowe
Originator: James B. Shope
Originator: Ann E. Gibbs
Originator: Barry A. Nickel
Originator: Robert T. McCall
Originator: Ap R. van Dongeren
Originator: Mike W. Beck
Publication_Date: 2019
Title:
Rigorously Valuing the Role of U.S. Coral Reefs in Coastal Hazard Risk Reduction
Other_Citation_Details:
Storlazzi, C.D., Reguero, B.G., Cole, A.D., Lowe, E., Shope, J.B., Gibbs, A.E., Nickel, B.A., McCall, R.T., van Dongeren, A.R., and Beck, M.W., 2019, Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction: U.S. Geological Survey Open-File Report 2019 1027, 42 p., https://doi.org/10.3133/ofr20191027
Online_Linkage: https://doi.org/10.3133/ofr20191027
Cross_Reference:
Citation_Information:
Originator: Curt D. Storlazzi
Originator: Borja G. Reguero
Originator: Camila L. Gaido
Originator: Kristen C. Alkins
Originator: Chris Lowrie
Originator: Kees M. Nederhoff
Originator: Li H. Erikson
Originator: Andrea C. O'Neill
Originator: Mike W. Beck
Publication_Date: 2024
Title:
Forecasting Storm-Induced Coastal Flooding for 21st Century Sea-Level Rise Scenarios in the Hawaiian, Mariana, and American Samoan Islands
Other_Citation_Details:
Storlazzi, C.D., Reguero, B.G., Gaido L., C., Alkins, K.C., Lowrie, C., Nederhoff, K.M., Erikson, L.H., O'Neill, A.C., and Beck, M.W., 2024, Forecasting storm-induced coastal flooding for 21st century sea-level rise scenarios in the Hawaiian, Mariana, and American Samoan Islands: U.S. Geological Survey Data Report 1184, 21 p.
Online_Linkage: https://doi.org/10.3133/dr1184
Cross_Reference:
Citation_Information:
Originator: Curt D. Storlazzi
Originator: Borja G. Reguero
Originator: T. Shay Viehman
Originator: Kristen A. Cumming
Originator: Aaron D. Cole
Originator: James B. Shope
Originator: Sarah H. Groves
Originator: Camila Gaido L.
Originator: Barry A. Nickel
Originator: Mike W. Beck
Publication_Date: 2021
Title:
Rigorously Valuing the Impact of Hurricanes Irma and Maria on Coastal Hazard Risk in Florida and Puerto Rico
Other_Citation_Details:
Storlazzi, C.D., Reguero, B.G., Viehman, T.S., Cumming, K.A., Cole, A.D., Shope, J.B., Groves, S.H., Gaido L., C., Nickel, B.A., and Beck, M.W., 2021, Rigorously valuing the impact of Hurricanes Irma and Maria on coastal hazard risks in Florida and Puerto Rico: U.S. Geological Survey Open-File Report 2021 1056, 29 p.
Online_Linkage: https://doi.org/10.3133/ofr20191027
Cross_Reference:
Citation_Information:
Originator: Borja G. Reguero
Originator: Curt D. Storlazzi
Originator: Ann E. Gibbs
Originator: James B. Shope
Originator: Aaron D. Cole
Originator: Kristen A. Cumming
Originator: Mike W. Beck
Publication_Date: 2021
Title: The value of US coral reefs for flood risk reduction
Other_Citation_Details:
Reguero, B.G., Storlazzi, C.D., Gibbs, A.E., Shope J.B., Cole, A.D., Cumming, K.A., and Beck, M.W., 2021 Author Correction: The value of US coral reefs for flood risk reduction. Nat Sustain 4, 457.
Online_Linkage:
https://doi.org/10.1038/s41893-021-00724-4Data_Quality_Information
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute values are values automatically generated during creation of dataset.
Logical_Consistency_Report:
No additional checks for consistency were performed on this data.
Completeness_Report:
Dataset is considered complete for the information presented as described in the abstract. Users are advised to read the metadata record carefully for additional details.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Data are concurrent with topobathymetric digital elevation model (DEM) locations.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Elevation values are as precise as resolution and tolerances listed in associated topobathymetric DEMs.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado
Publication_Date: 2014
Title:
Pago Pago, American Samoa 3 arc-second MHW Coastal Digital Elevation Model.
Geospatial_Data_Presentation_Form: NetCDF
Publication_Information:
Publication_Place: online
Publisher: NOAA National Geophysical Data Center
Online_Linkage:
https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.dem:647/html
Type_of_Source_Media: Digital
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19620101
Ending_Date: 20080101
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: DEM
Source_Contribution: DEM used to extract each of the levels of sea level rise.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Kristen C. Alkins
Originator: Camila Gaido L.
Originator: Borja G. Reguero
Originator: Curt D. Storlazzi
Publication_Date: 2024
Title:
Projected coastal flooding extents for 1-, 20-, and 100-year return interval storms and 0.00, +0.25, +0.50, +1.00, +1.50, +2.00, and +3.00 meter sea-level rise scenarios in American Samoa
Geospatial_Data_Presentation_Form: Shapefile
Publication_Information:
Publication_Place: online
Publisher: US Geological Survey
Online_Linkage: https://doi.org/10.5066/P9RIQ7S7
Type_of_Source_Media: Digital
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19620101
Ending_Date: 20080101
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: storm extents
Source_Contribution:
Shapefiles, from this same data release, used to extract each of the levels of sea level rise.
Process_Step:
Process_Description:
Extract SLR flood scenarios (0.25, 0.5, 1.0, 1.5, 2.0 and 3.0 m) for the coast of American Samoa's most populated islands of Tutuila, Ofu-Olosega, and Ta'u from DEMs, by first extracting values from 0 to SLR elevations. Then these layers were changed to flood depths by subtracting extracted values layer from SLR height, creating flood depths GeoTIFFs. The corresponding SLR storm flood extents for 1-year storms were then used to clip the extents of the SLR only flood extents to ensure that any clipping of the original storm flood layers was honored in the SLR flood extents. These new clipped GeoTIFFs were then exported out as polygons. These new polygons were then visually inspected to remove any polygons that could not be the result of SLR flood inundation. Once this inspection was complete, these edited SLR flood extents were then used to clip the SLR flood depths GeoTIFFs for a final time. Final GeoTIFFs were separated by island and zipped (SLR_[island]_depths.zip) for file-size considerations.
Source_Used_Citation_Abbreviation: DEM
Source_Used_Citation_Abbreviation: storm extents
Process_Date: 20240315
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.00001
Longitude_Resolution: 0.00001
Geographic_Coordinate_Units: Decimal Degrees
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: Mean High Water
Altitude_Resolution: 0.01
Altitude_Distance_Units: meters
Altitude_Encoding_Method: Implicit coordinate
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: SLR_[Island]_[SLR height].
Entity_Type_Definition:
GeoTIFFs consisting of the flood depths for the SLR scenario for each island.
Entity_Type_Definition_Source: Producer defined
Attribute:
Attribute_Label: Value
Attribute_Definition: water depth
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 3.0
Attribute_Units_of_Measure: meters
Overview_Description:
Entity_and_Attribute_Overview:
GeoTIFFs contained in this part of the data release include projected flood extents in the following format SLR_ASamoa[Island]_[SLR scenario].tif, where [SLR scenario] = one of the six SLR scenarios modeled (025cm, 050cm, 100cm, 150cm, 200cm, 300cm). Files are grouped by island, containing all SLR scenarios. For example, SLRASamoa_Tau_depths.zip contains all outputs for Ta'u within which SLRTau_300.tif illustrates the flood depths for a SLR of 300 cm (3 m).
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - ScienceBase
Contact_Address:
Address_Type: mailing and physical
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
These data are available as GeoTIFFs by island for which [SLR_[island]_depths.zip is the filename, where island could be Tutuila, Ofu-Olosega, or Ta'u.
Distribution_Liability:
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoTIFF
Format_Version_Number: ArcGIS 13.2.0.49743
Format_Specification:
Features are GeoTIFF format and are projected in UTM Zone 2S coordinates, with horizontal datum WGS84
Format_Information_Content:
.zip contains the flood depth rasters for Tutuila, Ofu-Olesega, and Ta u in American Samoa.
File_Decompression_Technique: WinZip
Transfer_Size: 0.512
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://www.sciencebase.gov/catalog/file/get/661ddc6cd34e7eb9eb7e3c20
Network_Resource_Name:
https://www.sciencebase.gov/catalog/item/661ddc6cd34e7eb9eb7e3c20
Network_Resource_Name:
https://www.sciencebase.gov/catalog/item/64821e8ad34eac007b580e14
Network_Resource_Name: https://doi.org/10.5066/P9RIQ7S7
Access_Instructions:
Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data and metadata for Tutuila, Ofu-Olosega, and Ta'u in American Samoa. The second link points to a landing page with links to the metadata and flood-depth data for Tutuila, Ofu-Olosega, and Ta'u. The third link points to the landing page for the flood depth and flood extent data for Tutuila, Ofu-Olosega, and Ta'u. The fourth link points to the landing page for the entire data release.
Fees: None.
Technical_Prerequisites:
These data can be viewed with ArcGIS or other spatial analysis software.
Metadata_Reference_Information:
Metadata_Date: 20240910
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Contact_Person: PCMSC Science Data Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P9RIQ7S7/Projections_SLRDepths_AmericanSamoa_metadata.html>
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