CoSMoS 3.2 Northern California Tier 1 FLOW-WAVE model input files

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Frequently anticipated questions:

What does this data set describe?

Title:
CoSMoS 3.2 Northern California Tier 1 FLOW-WAVE model input files
Abstract:
This data set consists of physics-based Delft3D-FLOW and WAVE hydrodynamic model input files used for Coastal Storm Modeling System (CoSMoS) Tier 1 simulations. Tier 1 simulations cover the Northern California open-coast region, from the Golden Gate Bridge to the California/Oregon state border, and they provide boundary conditions to higher-resolution simulations. Simulations are run for several storm events (covering a range of no storm, 1-year, 20-year, and 100-year coastal storm conditions) and sea-level rise (SLR) scenarios.
Supplemental_Information:
This work is one supporting part of ongoing modeling efforts for California and the western United States. For information on data sources and details on methodology of this dataset, see source information below. For more information on CoSMoS implementation, see https://www.usgs.gov/centers/pcmsc/science/coastal-storm-modeling-system-cosmos?qt-science_center_objects=0#qt-science_center_objects.
  1. How might this data set be cited?
    O'Neill, Andrea C., Erikson, Li H., and Barnard, Patrick L., 20230221, CoSMoS 3.2 Northern California Tier 1 FLOW-WAVE model input files: data release DOI:10.5066/P9048D1S, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    Barnard, Patrick L., Erikson, Li H., Foxgrover, Amy C., Limber, Patrick W., O'Neill, Andrea C., Thomas, Jennifer A., and Vitousek, Sean F., 2022, Coastal Storm Modeling System (CoSMoS) for northern California 3.2: data release DOI:10.5066/P9048D1S, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -127.0138
    East_Bounding_Coordinate: -121.8632
    North_Bounding_Coordinate: 43.4003
    South_Bounding_Coordinate: 36.2102
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 2023
    Currentness_Reference:
    year of publication
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: NetCDF
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      Indirect_Spatial_Reference:
      The model input files for Delft3D FLOW-WAVE are for CoSMoS 3.2 Northern California Tier 1 region. Setup included is for 0 m SLR and the 5 March 2044 (100-year) storm event.
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.001. Longitudes are given to the nearest 0.001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is World Geodetic System 1984 (WGS84).
      The ellipsoid used is WGS84.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257223563.
  7. How does the data set describe geographic features?
    Entity_and_Attribute_Overview:
    Model setup files include all files necessary to run a Tier 1 simulation for CoSMoS 3.2 in Northern California with Delft3D FLOW-WAVE, with a runid of "norcal". Boundary conditions illustrate a 100-yr storm event (5 March 2044) and 0 m SLR.
    Entity_and_Attribute_Detail_Citation:
    Model setup files for CoSMoS 3.2 Northern California Tier 1 simulations, created in Delft3D 4.04.01. The entity and attribute information were generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Andrea C. O'Neill
    • Li H. Erikson
    • Patrick L. Barnard
  2. Who also contributed to the data set?
    This project was funded by U.S. Geological Survey Coastal and Marine Hazards and Resources Program. Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center.
  3. To whom should users address questions about the data?
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Attn: PCMSC Science Data Coordinator
    2885 Mission Street
    Santa Cruz, CA

    831-427-4747 (voice)
    pcmsc_data@usgs.gov

Why was the data set created?

The Coastal Storm Modeling system uses several tiers of numerical models to make detailed predictions (meter-scale) of flooding and erosion over large geographic scales. These input files provide the setup for Tier 1 simulations (as discussed in O'Neill and others, 2022). Files were created with Delft3D 4.04.01. These data are intended for science researchers, technical users, and students.

How was the data set created?

  1. From what previous works were the data drawn?
    DEM (source 1 of 6)
    U.S. Geological Survey, 2021, Coastal National Elevation Database (CoNED) Project - Topobathymetric Digital Elevation Model (TBDEM) for Northern California: U.S. Geological Survey, online.

    Online Links:

    Type_of_Source_Media: online database
    Source_Contribution:
    Elevation data used to prescribe topobathy elevations in model grid
    GCM wind data (source 2 of 6)
    Pierce, D.W., Cayan, D.R., and Thrasher, B.L., 2015, LOCA Statistical Downscaling (Localized Constructed Analogs): Scripps Institute of Oceanography, University of California, San Diego, California, Scripps Institute of Oceanography, University of California, San Diego, California.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    statistically downscaled Global Climate Model (GCM) wind and pressure data for California
    TWL proxies (source 3 of 6)
    O'Neill, Andrea C., Erikson, Li H., and Barnard, Patrick L., 2022, Nearshore total water level (TWL) proxies (2018-2100) for Northern California: U.S. Geological Survey, online.

    Online Links:

    Type_of_Source_Media: online database
    Source_Contribution:
    proxies of nearshore Total Water Level to identify storm events for use in CoSMoS 3.2 Northern California
    GCM waves (source 4 of 6)
    Erikson, L.H., Storlazzi, C.D., Barnard, P.L., Hegermiller, C.E., and Shope, J.B., 2016, Wave and wind projections for United States Coasts; Mainland, Pacific Islands, and United States-Affiliated Pacific Islands: U.S. Geological Survey, online.

    Online Links:

    Type_of_Source_Media: online dataset
    Source_Contribution:
    future wave conditions derived from Global Climate Models used as boundary conditions for CoSMoS scenario setup
    buoy observations (source 5 of 6)
    National Data Buoy Center (NDBC), 2019, Historical data for various buoy stations: National Oceanic and Atmospheric Administration (NOAA), online.

    Online Links:

    Type_of_Source_Media: online database
    Source_Contribution: ocean wave observation records at buoy stations
    tide gages (source 6 of 6)
    National Oceanic and Atmospheric Administration (NOAA), 2019, NOAA Water Level Information for Tide Stations: National Oceanic and Atmospheric Administration (NOAA), online.

    Online Links:

    Type_of_Source_Media: online database
    Source_Contribution:
    water level measurements at various tide stations for validation of model setup
  2. How were the data generated, processed, and modified?
    Date: 31-May-2021 (process 1 of 2)
    Model grid, elevation and setup files for Tier 1 (as described by O'Neill and others, 2018) generated for Northern California. Model is set up in the spherical coordinate system and elevations are referenced to MSL. Model grid/setup validated for storm system in January 2010 using reanalysis wind/pressure fields over California (Kanamitsu and Kanamaru, 2007); regional water level RMSE (for all tide gages within Northern California open-coast region) is 12 cm and regional wave height RMSE (at buoys N42614 and N46022) is 57 cm. For an in-depth discussion of Tier 1 model setup see O'Neill and others (2018). Data sources used in this process:
    • DEM
    • tide gages
    • buoy observations
    Data sources produced in this process:
    • validated model setup files
    Date: 31-Aug-2021 (process 2 of 2)
    Setup files adjusted for storm scenarios identified by Total Water Level proxies. Storm events identified and simulated are: 3 May 2031 (no storm); 9 February 2020, 10 December 2071, and 19 October 2058 (1-year storm); 9 February 2074, 10 December 2052, and 15 December 2063 (20-year storm); and 8 December 2023, 27 November 2056, 5 March 2044, and 23 December 2083 (100-year storm). For each event, setup files (wind, sea-level pressure, and wave forcing files) are adjusted to reflect GCM data and GCM waves for the storm's respective time period. For each storm event, simulations are run with a range of SLR: 0 m, 0.5 m, 1.0 m, 1.5 m, 2.0 m, 3.0 m, and 5.0 m. See O'Neill and others (2018) on scenario setup and Erikson and others (2018) for information on storm selection. Data sources used in this process:
    • validated model setup files
    • TWL proxies
    • GCM wind data
    • GCM waves
    Data sources produced in this process:
    • scenario model setup files used in CoSMoS 3.2
  3. What similar or related data should the user be aware of?
    O'Neill, A.C., Erikson, L.H., Barnard, P.L., Limber, P.W., Vitousek, S., Warrick, J, Foxgrover, A.C., and Lovering, J.L., 2018, Projected 21st Century Coastal Flooding in the Southern California Bight. Part 1: Development of the Third Generation CoSMoS Model.

    Other_Citation_Details:
    O'Neill, A.C., Erikson, L.H., Barnard, P.L., Limber, P.W., Vitousek, S., Warrick, J.A., Foxgrover, A.C., Lovering, J., 2018, Projected 21st Century Coastal Flooding in the Southern California Bight. Part 1: Development of the Third Generation CoSMoS Model: Journal of Marine Science and Engineering, vol. 6, art. 59, https://doi.org/10.3390/jmse6020059.
    Erikson, L.H., Espejo, A., Barnard, P.L., Serafin, K.A., Hegermiller, C.A., O'Neill, A.C., Ruggiero, P., Limber, P.W., and Mendez, F.J., 2018, Identification of storm events and contiguous coastal sections for deterministic modeling of extreme coastal flood events in response to climate change.

    Other_Citation_Details:
    Erikson, L.H., Espejo, A., Barnard, P.L., Serafin, K.A., Hegermiller, C.A., O'Neill, A.C., Ruggiero, P., Limber, P.W., and Mendez, F.J., 2018, Identification of storm events and contiguous coastal sections for deterministic modeling of extreme coastal flood events in response to climate change: Coastal Engineering, v. 140, p. 316-330, https://doi.org/10.1016/j.coastaleng.2018.08.003.
    Kanamitsu, M., and Kanamaru, M., 2007, Fifty-seven-year California Reanalysis Downscaling at 10 km (CaRD10). Part I: System detail and validation with observations.

    Other_Citation_Details:
    Kanamitsu, M. and Kanamaru, H., 2007, Fifty-seven-year California Reanalysis Downscaling at 10 km (CaRD10). Part I: System detail and validation with observations: Journal of Climate, v. 20, p. 5553–5571, https://doi.org/10.1175/2007JCLI1482.1.

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    Model setup is validated for a historical storm event in the Northern California region, with regional water level RMSE of 12 cm and maximum wave height RMSE of 57 cm. See O'Neill and others (2018) for more information on setup and accuracy.
  2. How accurate are the geographic locations?
    Data are concurrent with the referenced Digital Elevation Model.
  3. How accurate are the heights or depths?
    Model-derived data are accurate within the limitations outlined in O'Neill and others (2018).
  4. Where are the gaps in the data? What is missing?
    Dataset is considered complete for the information presented.
  5. How consistent are the relationships among the observations, including topology?
    Data have undergone QA/QC and fall within expected/reasonable ranges.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
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 Deltares, the U.S. Geological Survey, and TU Delft as the originators of the dataset and in products derived from these data.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey - ScienceBase
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable data in Delft3D-FLOW and WAVE numerical model input file format.
  3. What legal disclaimers am I supposed to read?
    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. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 21-Feb-2023
Metadata author:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Attn: PCMSC Science Data Coordinator
2885 Mission Street
Santa Cruz, CA

831-427-4747 (voice)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P9048D1S/NorthernCalifornia_Tier1_model-setup-files_metadata.faq.html>
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