CoSMoS Southern California v3.0 projections of shoreline change due to 21st century sea-level rise

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Sean Vitousek
Originator: Patrick Barnard
Publication_Date: 2017
Title:
CoSMoS Southern California v3.0 projections of shoreline change due to 21st century sea-level rise
Geospatial_Data_Presentation_Form:
Shoreline change projections in Google Earth KMZ and ESRI shapefile (SHP) formats
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7T151Q4
Publication_Information:
Publication_Place:
Pacific Coastal and Marine Science Center, Santa Cruz, California
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7T151Q4
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Patrick L Barnard
Originator: Li H Erikson
Originator: Amy C Foxgrover
Originator: Patrick W Limber
Originator: Andrea C O'Neill
Originator: Sean Vitousek
Publication_Date: 2018
Title:
Coastal Storm Modeling System (CoSMoS) for Southern California, v3.0, Phase 2
Geospatial_Data_Presentation_Form: Digital
Series_Information:
Series_Name: data release
Issue_Identification: doi:10.5066/F7T151Q4
Publication_Information:
Publication_Place:
Pacific Coastal and Marine Science Center, Santa Cruz, California
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7T151Q4
Description:
Abstract:
This dataset contains projections of shoreline positions and uncertainty bands for future scenarios of sea-level rise. Projections were made using CoSMoS-COAST, a numerical model forced with global-to-local nested wave models and assimilated with lidar-derived shoreline vectors. Details: Projections of shoreline position in Southern California are made for scenarios of 0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2.0, and 5.0 meters of sea-level rise by the year 2100. Four datasets are available for different management conditions: shorelines are allowed to retreat unimpeded past urban tructures ("NO Hold the Line") or are limited to this urban boundary ("Hold the Line"), and shorelines are allowed to progress with projected increases in sediment ("Continued Nourishment") or with no projected increases ("No Nourishment"). Projections are made at CoSMoS Monitoring and Observation Points, which represent shore-normal transects spaced 100 m alongshore. The newly developed CoSMoS-COAST model solves a coupled set of partial differential equations that resembles conservation of sediment for the series of transects. The model is synthesized from several shoreline models in the scientific literature: One-line model formulations (Pelnard-Considere, 1956; Larson and others, 1997; Vitousek and Barnard, 2015) account for longshore transport, equilibrium shoreline-model formulations (Yates and others, 2009) account for wave-driven cross-shore transport, and equilibrium beach-profile formulations (Bruun, 1954; Davidson-Arnot, 2005; Anderson and others, 2015) account for long-term beach-profile adjustments due to sea-level rise. The model uses an extended Kalman filter data-assimilation method to improve the fit of the model to lidar-derived observed shoreline positions. As with previous studies (Hapke and others, 2006), the available shoreline data are spatially and temporally sparse. The data-assimilation method automatically adjusts model parameters and estimates the effects of unresolved processes such as natural and anthropogenic sediment supply. The data-assimilation method used in CoSMoS-COAST has been improved over the original method of Long and Plant (2012). The new method ensures that the coefficients of the equilibrium shoreline-change model retain their preferred sign. Without this improvement, the data-assimilation method was subject to instability. Data assimilation is performed only on days of the simulations where shoreline data are observed. For the shoreline projection period (2015–2100), no such data are available and thus no data-assimilation can be performed. Some of the model components are ignored for certain transects and geographic locations. For example, on small pocket beaches longshore transport is assumed negligible and, therefore, is not computed via the model. Generally, projections were not made at transects where the shoreline is armored and sandy beaches are not present. The formulations that comprise the shoreline model are only valid for sandy beaches. Furthermore, they become invalid as the beach becomes fully eroded and possibly undermines coastal infrastructure. Hence, we have specified a maximally eroded shoreline state that represents the interface of sandy beaches and coastal infrastructure (for example, roads, homes, buildings, sea-walls). If the beach erodes to this line, then it is not permitted to erode further. However, we note that the model can be run without specifying this unerodible line. The shoreline model uses a series of global-to-local nested wave models (such as WaveWatch III and SWAN) forced with Global Climate Model (GCM)-derived wind fields. Historical and projected time series of daily maximum wave height and corresponding wave period and direction from 1990 to 2100 force the shoreline model. The modeled wave predictions are a key input to the CoSMoS-COAST shoreline model because the calculation of both the longshore sediment-transport rate (obtained via the "CERC" equation developed by the Army Corp of Engineers; Shore Protection Manual, 1984) and equilibrium shoreline change (Yates and others, 2009) critically depends on the wave conditions. Notably, variations in nearshore wave angle can significantly affect the calculation of longshore transport. Thus, high-resolution modeling efforts to predict nearshore wave conditions are integral components of the shoreline modeling. Sea level vs. time curves are modeled as a quadratic function. Coefficients of the quadratic curves are obtained via three equations: (1) present sea level is assumed to be at zero elevation, (2) the present rate of sea-level rise is assumed to be 3 mm/yr, which is consistent with values observed at local tide gages, (3) future sea-level elevation at 2100 is either 0.93, 1.25, 1.5, 1.75, 2.0 or 5.0 m based on the scenarios considered. We note that sea level only affects the equilibrium-profile changes derived via the Anderson and others (2015) model. The model uses a forward Euler time-stepping method with a daily time step. The longshore sediment-transport term has the option of using a second-order, implicit time-stepping method (Vitousek and Barnard 2015). However, for these modeling efforts, the forward Euler time-stepping method is sufficient and does not violate numerical stability determined by the Courant-Friedrichs-Lewy CFL condition when using a daily time step on 100 m-spaced transects. The model is composed of numerous scripts and functions implemented in Matlab. The main modeling routines have approximately 1,000-plus lines of code. However, many other functions exist that are necessary to initialize and operate the model. Overall the entire shoreline-modeling system is estimated to have approximately 10,000 lines of code. The modeling system is computationally efficient in comparison to traditional coupled hydrodynamic-wave-morphology models like Delft3D. Century-scale simulations for the entire 400 km coast of Southern California take approximately 20–30 minutes of wall-clock time. This limited computational cost allows the possibility of applying ensemble prediction. Significant uncertainty is associated with the process noise of the model and unresolved coastal processes. This makes estimation of uncertainty difficult. The uncertainty bands predicted here represent 95 percent confidence bands associated with the modeled shoreline fluctuations. Unresolved processes are not accounted for in the uncertainty bands and could lead to significantly more uncertainty than reported in these predictions. These results should be considered preliminary. Although some QA/QC has been completed, the results will improve through time as 1) more shoreline data become available to the data-assimilation method, 2) the models are improved, and 3) ensemble wave-forcing is applied to the model. For more information on model details, data sources, and integration with other parts of the CoSMoS framework, see CoSMoS_3.0_Phase_2_Southern_California_Bight:_Summary_of_data_and_methods (available at https://www.sciencebase.gov/catalog/file/get/57f1d4f3e4b0bc0bebfee139?name=CoSMoS_SoCalv3_Phase2_summary_of_methods.pdf).
Purpose:
These data are intended for policy makers, resource managers, science researchers, students, and the general public. These data can be used with geographic information systems or other software to identify and assess possible areas of vulnerability. These data are not intended to be used for navigation.
Supplemental_Information:
This work is one portion of ongoing modeling efforts for California and the western United States. For information on data sources and details on methodology, see https://www.sciencebase.gov/catalog/file/get/57f1d4f3e4b0bc0bebfee139?name=CoSMoS_SoCalv3_Phase2_summary_of_methods.pdf. For more information on CoSMoS implementation, see https://walrus.wr.usgs.gov/coastal_processes/cosmos/
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20151210
Ending_Date: 20170810
Currentness_Reference: oldest dataset used through publication date
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -120.48706054569
East_Bounding_Coordinate: -117.01538085833
North_Bounding_Coordinate: 34.51524902452
South_Bounding_Coordinate: 32.472325899539
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:57f426b9e4b0bc0bec033fad
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Physical Habitats and Geomorphology
Theme:
Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
Theme_Keyword: Hazards Planning
Theme_Keyword: Ocean Waves
Theme_Keyword: Erosion
Theme_Keyword: Sea Level Rise
Theme_Keyword: Extreme Weather
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Climate Change
Theme_Keyword: Storms
Theme_Keyword: Sea-level Change
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Oceans
Theme_Keyword: ClimatologyMeteorologyAtmosphere
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: sea level change
Theme_Keyword: waves
Theme_Keyword: coastal erosion
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Santa Barbara County
Place_Keyword: Ventura County
Place_Keyword: Los Angeles County
Place_Keyword: Orange County
Place_Keyword: San Diego County
Place_Keyword: State of California
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Southern California
Place_Keyword: Southern California Bight
Access_Constraints: none
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 as the originator(s) of the dataset and in products derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Patrick L. Barnard
Contact_Organization:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Contact_Address:
Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA
Contact_Voice_Telephone: 831-460-7556
Contact_Electronic_Mail_Address: pbarnard@usgs.gov
Cross_Reference:
Citation_Information:
Originator: Anderson, T.R.
Originator: Fletcher, C.H.
Originator: Barbee, M.M.
Originator: Frazer, L.N.
Originator: Romine, B.M.
Publication_Date: 2015
Title:
Doubling of coastal erosion under rising sea level by mid-century in Hawaii
Other_Citation_Details:
Anderson, T. R., Fletcher, C. H., Barbee, M. M., Frazer, L. N., and Romine, B. M., 2015, Doubling of coastal erosion under rising sea level by mid-century in Hawaii, Natural Hazards, 1-29.
Cross_Reference:
Citation_Information:
Originator: Bruun, P.
Publication_Date: 1954
Title: Coast erosion and the development of beach profiles
Other_Citation_Details:
Bruun, P., 1954, Coast erosion and the development of beach profiles, Technical Memorandum, Beach Erosion Board, Corps of Engineers, vol. 44., p 82.
Cross_Reference:
Citation_Information:
Originator: Davidson-Arnott, R.G.
Publication_Date: 2005
Title:
Conceptual model of the effects of sea level rise on sandy coasts
Other_Citation_Details:
Davidson-Arnott, R. G., 2005, Conceptual model of the effects of sea level rise on sandy coasts, Journal of Coastal Research, 1166-1172.
Cross_Reference:
Citation_Information:
Originator: Hapke, C.
Originator: Reid, D.
Originator: Richmond, B.M.
Originator: Ruggiero, P.
Originator: List, J.
Publication_Date: 2006
Title:
National assessment of shoreline change Part 3: Historical shoreline change and associated coastal land loss along sandy shorelines of the California Coast
Other_Citation_Details:
Hapke, C. J., Reid, D., Richmond, B. M., Ruggiero, P., and List, J., 2006, National assessment of shoreline change Part 3: Historical shoreline change and associated coastal land loss along sandy shorelines of the California Coast, US Geological Survey Open File Report, 1219, 27.
Cross_Reference:
Citation_Information:
Originator: Larson, M.
Originator: Hanson, H.
Originator: Kraus, N.C.
Publication_Date: 1997
Title:
Analytical solutions of one-line model for shoreline change near coastal structures
Other_Citation_Details:
Larson, M., Hanson, H., and Kraus, N. C., 1997, Analytical solutions of one-line model for shoreline change near coastal structures, Journal of Waterway, Port, Coastal, and Ocean Engineering, 123(4), 180-191.
Cross_Reference:
Citation_Information:
Originator: Long, J.W.
Originator: Plant, N.G.
Publication_Date: 2012
Title:
Extended Kalman Filter framework for forecasting shoreline evolution
Other_Citation_Details:
Long, J. W., and Plant, N. G., 2012, Extended Kalman Filter framework for forecasting shoreline evolution, Geophysical Research Letters, 39(13).
Cross_Reference:
Citation_Information:
Originator: Pelnard-Considere, R.
Publication_Date: 1956
Title:
Essai de theorie de l'evolution des formes de rivage en plages de sable et de galets
Other_Citation_Details:
Pelnard-Considere, R., 1956, Essai de theorie de l'evolution des formes de rivage en plages de sable et de galets, Societe hydrotechnique de France.
Cross_Reference:
Citation_Information:
Originator: U.S. Army Corps of Engineers
Publication_Date: 1984
Title: Shore Protection Manual
Other_Citation_Details:
U.S. Army Corps of Engineers, 1984, Shore Protection, Manual, Coastal Engineering Research Center, U.S. Government Printing Office, Washington, D.C.
Cross_Reference:
Citation_Information:
Originator: Vitousek, S.
Originator: Barnard, P.L.
Publication_Date: 2015
Title:
A nonlinear, implicit one-line model to predict long-term shoreline change
Other_Citation_Details:
Vitousek, S., and Barnard, P.L., 2015, A nonlinear, implicit one-line model to predict long-term shoreline change, Proceedings of the Coastal Sediments Conference 2015.
Cross_Reference:
Citation_Information:
Originator: Yates, M.L.
Originator: Guza, R.T.
Originator: O'Reilly, W.C.
Publication_Date: 2009
Title: Equilibrium shoreline response: Observations and modeling
Other_Citation_Details:
Yates, M. L., Guza, R. T., and O'Reilly, W. C., 2009, Equilibrium shoreline response: Observations and modeling, Journal of Geophysical Research: Oceans, (1978–2012), 114(C9).
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute values are estimates of shoreline position due to plausible future sea-level rise scenarios and therefore cannot be cross-checked with observations, because observations do not exist. The projections were generated using up-to-date numerical methods and are in line with projections made by previous researchers. Uncertainty bands are included that take seasonal variations in the shoreline as derived using the numerical model into account.
Logical_Consistency_Report:
Data have undergone QA/QC and fall within expected/reasonable ranges.
Completeness_Report:
Data set is considered complete, but preliminary, for the information presented (as described in the abstract) and will be updated as needed through July 2016. The dataset will improve through time as 1) more shoreline data becomes available, 2) the models are improved, and 3) an ensemble wave forcing is prescribed. Data includes only areas where shoreline armoring (for example, seawalls, revetments) is not present, though some exceptions may apply. Users are advised to read the rest of the metadata record carefully for additional details.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Data are concurrent with specified transect locations.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: N/A
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Patrick Barnard
Originator: Li Erikson
Originator: Amy Foxgrover
Originator: Andrea O'Neill
Originator: Sean Vitousek
Originator: Liv Herdman
Originator: Jonathan Warrick
Publication_Date: 2017
Title:
CoSMoS_3.0_Phase_2_Southern_California_Bight:_Summary_of_data_and_methods
Publication_Information:
Publication_Place:
Pacific Coastal and Marine Science Center, Santa Cruz, California
Publisher: U.S. Geological Survey
Online_Linkage:
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2017
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Summary of methods
Source_Contribution:
Complete explanation of data and methodology used in model framework
Process_Step:
Process_Description:
Built numerical models (run within Matlab) of shoreline change due to wave impacts and sea-level rise
Process_Date: 20150215
Process_Step:
Process_Description: Obtained shoreline vectors from LIDAR surveys
Process_Date: 20150601
Process_Step:
Process_Description: Improved data assimilation techniques
Process_Date: 20150701
Process_Step:
Process_Description: Applied models to Southern California
Process_Date: 20150801
Process_Step:
Process_Description:
Metadata was modified to add or correct the Larger_Work section, and to correct the link(s) to the Methods Summary pdf so that it points to the new location of the file. No data information was changed.
Process_Date: 20180814
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Susan A Cochran
Contact_Organization:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA
Contact_Voice_Telephone: (831) 460-7545
Contact_Electronic_Mail_Address: scochran@usgs.gov
Process_Step:
Process_Description:
Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.
Process_Date: 20201019
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description:
Performed minor edits to the metadata to correct typos. No data were changed
Process_Date: 20211014
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Susan A. Cochran
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Contact_Voice_Telephone: 831-460-7545
Contact_Electronic_Mail_Address: scochran@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 11
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -100.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 2.000000
Ordinate_Resolution: 2.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: NAVD88
Depth_Resolution: 2.0
Depth_Distance_Units: meters
Depth_Encoding_Method: Implicit coordinate
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: CoSMoS-COAST_v3Phase2_Shoreline_change_projections_KMZ
Entity_Type_Definition:
Shoreline position changes caused by wave impacts in different sea-level rise scenarios and management conditions
Entity_Type_Definition_Source:
originators at United States Geological Survey, Pacific Coastal and Marine Science Center
Attribute:
Attribute_Label: initial shoreline
Attribute_Definition: initial shoreline position
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: initial shoreline
Enumerated_Domain_Value_Definition: position of initial shoreline used in modeling
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute:
Attribute_Label: final shoreline
Attribute_Definition: final shoreline position for named scenario
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: final shoreline
Enumerated_Domain_Value_Definition:
position of final shoreline projection for given sea-level rise and management scenario
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute:
Attribute_Label: final shoreline uncertainty
Attribute_Definition: uncertainty for final shoreline position for named scenario
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: final shoreline uncertainty
Enumerated_Domain_Value_Definition:
uncertainty of final shoreline projection for given sea-level rise and management scenario
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute:
Attribute_Label: final shoreline uncertainty plus potential erosion uncertainty
Attribute_Definition:
position of 95 percent exceedance representing extreme seasonal erosion for named scenario
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: final shoreline uncertainty plus potential erosion uncertainty
Enumerated_Domain_Value_Definition:
position of 95 percent exceedance representing extreme seasonal erosion for given sea-level rise and management scenario
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute:
Attribute_Label: non-erodible shoreline
Attribute_Definition:
landward limit of shoreline change projection for applicable scenarios
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: non-erodible shoreline
Enumerated_Domain_Value_Definition:
position representing landward limit of possible shoreline change used within models for applicable "Hold the line" scenarios
Enumerated_Domain_Value_Definition_Source: producer defined
Detailed_Description:
Entity_Type:
Entity_Type_Label: CoSMoS_v3Phase2_Shoreline_change_projections_SHP
Entity_Type_Definition:
Shoreline position changes caused by wave impacts in different sea-level rise scenarios and management conditions
Entity_Type_Definition_Source:
originators at United States Geological Survey, Pacific Coastal and Marine Science Center
Attribute:
Attribute_Label: SLR(XXX cm)_shoreline
Attribute_Definition: final shoreline position for named scenario
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: scenario
Enumerated_Domain_Value_Definition:
position of final shoreline projection for given sea-level rise scenarios and management conditions
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute:
Attribute_Label: SLR(XXX cm)_shoreline uncertainty
Attribute_Definition: uncertainty of final shoreline position for named scenario
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: scenario
Enumerated_Domain_Value_Definition:
uncertainty of final shoreline projection for given sea-level rise scenarios and management conditions
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute:
Attribute_Label: COAST_ErosionBoundary
Attribute_Definition:
landward limit of shoreline change projection for applicable ("Hold the line") scenarios
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: line segment
Enumerated_Domain_Value_Definition:
position representing landward limit of possible shoreline change used within models for applicable "Hold the line" scenarios
Enumerated_Domain_Value_Definition_Source: producer defined
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
Country: USA
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
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: KMZ
Format_Version_Number: Google Earth Pro (version 7.0, Google, 2015)
Format_Specification:
Features are in KMZ format and are projected in UTM Zone 11 coordinates, with horizontal datum NAD83 and vertical datum NAVD88.
Format_Information_Content:
The .zip file includes KMZ files, as well as associated files and the XML (.xml) version of the metadata
File_Decompression_Technique: WinZip
Transfer_Size: 107
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions: Data can be downloaded via the World Wide Web (WWW)
Fees: none
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: SHP
Format_Version_Number: ArcGIS 10.2.2
Format_Specification:
Features are shapefile formats and are projected in UTM Zone 11 coordinates, with horizontal datum NAD83 (NSRS2007) and vertical datum NAVD88.
Format_Information_Content:
The .zip file includes shapefiles (.shp), as well as associated files and the XML (.xml) version of the metadata
File_Decompression_Technique: WinZip
Transfer_Size: 8.4
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions: Data can be downloaded via the World Wide Web (WWW)
Fees: none
Metadata_Reference_Information:
Metadata_Date: 20211014
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Patrick L. Barnard
Contact_Organization:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Contact_Address:
Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: USA
Contact_Voice_Telephone: 831-460-7556
Contact_Electronic_Mail_Address: pbarnard@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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