{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "Min Yu",
    "hasEmail": "mailto:Min.Yu@water.ca.gov"
  },
  "description": "The following is a summary of the features from the DSM2 Monitoring Special Study (MSS) release that were merged into the  \r\nDSM2 2023 Full Calibration Release (FC_2023.01)* to create the \"DSM2 Input 2025-05-28 historical update\" release.  \r\nThe \"DSM2 Input 2025-05-28 historical update\" release was calibrated using DSM2 v8.4.1.  \r\n\r\n* Delta Modeling Section (DMS) standard directory structure and file naming conventions \r\n* MSS time period, calendar years 2015-2024 \r\n* Time series input from MSS, with Yolo Bypass and Yolo Toe Drain inputs added. \r\n* Fifteen minute time step for boundary flow and EC inputs \r\n* Hydro, Qual, and GTM are run with a 5 minute time step\r\n* Martinez stage boundary input adjusted to compensate for the lack of simulation of wind and density-induced pressure gradient from salinity gradients \r\n* Channel depletions adjusted to improve simulation of null zone diversions and improve circulation patterns around Fabian Tract and Pescadero Tract. \r\n* Inferred drainage EC inputs from MSS for South Delta. All negative values were replaced with zeros. \r\n* Gate configuration and operating rules from MSS, with one change to the operating rules to correct an error in the operation of the Suisun Marsh Salinity Control Gates (SMSCG) \r\n* Input allows for variable delta x in different parts of the domain. \r\n* Cross-sections updated in South Delta using DEM for Modeling, Version 4.3 (https://data.cnra.ca.gov/dataset/san-francisco-bay-and-sacramento-san-joaquin-delta-dem-for-modeling-version-4-3). \r\n\r\nVersions \r\n\r\n* DSM2 executable version: v8.4.1\r\n* DSM2 grid version: DSM2 Grid 2025-05-28 historical shapefiles\r\n* Bathymetry versions: DEM for Modeling, Version 4.3, Bathymetry files, version 2025-05-28\r\n\r\nSource code and executables: DSM2 HYDRO, QUAL, and PTM:  \r\nhttps://github.com/CADWRDeltaModeling/dsm2/releases/  \r\n* DSM2 2023 Full Calibration Release (FC_2023.01) and the corresponding release notes are available at https://data.cnra.ca.gov/dataset/dsm2-fc-2023-01",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://data.cnra.ca.gov/dataset/csdp-bathymetry-files-version-2025-05-28",
      "format": "HTML",
      "title": "Bathymetry files, version 2025-05-28"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://data.cnra.ca.gov/dataset/ee79557d-1280-488b-9408-80e634119423/resource/3d78ef29-3744-4f47-a84b-ca60ee7077aa/download/dsm2_grid_2025_05_28_historical_shapefiles.zip",
      "title": "DSM2 Grid 2025-05-28 historical shapefiles"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://data.cnra.ca.gov/dataset/san-francisco-bay-and-sacramento-san-joaquin-delta-dem-for-modeling-version-4-3#markdown",
      "description": "This DEM includes the bathymetry data that were used to update cross-sections in the South Delta.",
      "format": "HTML",
      "title": "DEM for Modeling, Version 4.3"
    },
    {
      "@type": "dcat:Distribution",
      "description": "The following is a summary of the features from the DSM2 Monitoring Special Study (MSS) release that were merged into the\r\nDSM2 2023 Full Calibration Release (FC_2023.01)* to create the \"DSM2 Input 2025-05-28 historical update\" release.\r\nThe \"DSM2 Input 2025-05-28 historical update\" release was calibrated using DSM2 v8.4.1.\r\n\r\n* Delta Modeling Section (DMS) standard directory structure and file naming conventions\r\n* MSS time period, calendar years 2015-2024\r\n* Time series input from MSS, with Yolo Bypass and Yolo Toe Drain inputs added.\r\n* Martinez stage boundary input adjusted to compensate for the lack of simulation of wind and density-induced pressure gradient from salinity gradients\r\n* Channel depletions adjusted to improve simulation of null zone diversions and improve circulation patterns around Fabian Tract and Pescadero Tract.\r\n* Inferred drainage EC inputs from MSS for South Delta. All negative values were replaced with zeros.\r\n* Gate configuration and operating rules from MSS, with one change to the operating rules to correct an error in the operation of the Suisun Marsh Salinity Control Gates (SMSCG)\r\n* Input allows for variable delta x in different parts of the domain.\r\n* Cross-sections updated in South Delta using DEM for Modeling, Version 4.3 (add link).\r\n\r\nSource code and executables: DSM2 HYDRO, QUAL, and PTM:\r\nhttps://github.com/CADWRDeltaModeling/dsm2/releases/\r\n* DSM2 2023 Full Calibration Release (FC_2023.01) and the corresponding release notes are available at https://data.cnra.ca.gov/dataset/dsm2-fc-2023-01",
      "downloadURL": "https://data.cnra.ca.gov/dataset/b1faa87e-b864-4bc1-9795-b599e7eb9b4d/resource/e52c4224-cc01-41f8-9197-13ffa592b587/download/dsm2_input_2025-05-28_historical_update.zip",
      "format": "ZIP",
      "mediaType": "application/zip",
      "title": "DSM2 Input 2025-05-28 historical update"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://data.cnra.ca.gov/dataset/b1faa87e-b864-4bc1-9795-b599e7eb9b4d/resource/120c2b45-c6e8-4a25-a3a3-cc3194760787/download/known_issues_dsm2_input_2025-05-28_historical_update.pdf",
      "format": "PDF",
      "mediaType": "application/pdf",
      "title": "Known Issues"
    },
    {
      "@type": "dcat:Distribution",
      "downloadURL": "https://data.cnra.ca.gov/dataset/dsm2/resource/6ed0af74-cc80-4cd9-8487-b3b7c0441a30",
      "format": "ZIP",
      "mediaType": "application/zip",
      "title": "DSM2 v8.4.1"
    }
  ],
  "identifier": "df975ef9-8885-4bcd-af61-220db16b8221",
  "issued": "2025-05-20T22:39:37.170176",
  "keyword": [
    "DSM2",
    "california department of water resources"
  ],
  "modified": "2026-08-19T17:45:36.352780",
  "publisher": {
    "@type": "org:Organization",
    "name": "California Department of Water Resources"
  },
  "theme": [
    "Natural Resources",
    "Water"
  ],
  "title": "DSM2 Input 2025-05-28 historical update"
}