Metadata: Identification_Information: Citation: Citation_Information: Originator: Helen Dow Originator: Jaimeime Kostelnik Originator: Jason W. Kean Originator: Donald N. Lindsay Publication_Date: 20240807 Title: Summary by wildfire of all postfire erosion modeled estimates and field-based observation for large fires 1984—2021 Geospatial_Data_Presentation_Form: shapefile Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9CG3DRR 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/P9CG3DRR Larger_Work_Citation: Citation_Information: Originator: Helen W. Dow Originator: Jaime Kostelnik Originator: Jason W. Kean Originator: Donald N. Lindsay Publication_Date: 2024 Title: Postfire erosion estimates for large California wildfires that occurred between 1984 and 2021 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9CG3DRR Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested Citation: Dow, H.W., Kostelnik, J., Kean, J.W., and Lindsay, D.N., 2024, Postfire erosion estimates for large California wildfires that occurred between 1984 and 2021: U.S. Geological Survey data release, https://doi.org/10.5066/P9CG3DRR. Online_Linkage: https://doi.org/10.5066/P9CG3DRR Description: Abstract: These data show all the postfire erosion results affiliated with this data release summed by wildfire and attached to a polygon of each fire perimeter, as defined by Monitoring Trends in Burn Severity (MTBS). The results are shown as attributes for each polygon of wildfire perimeter. Some of the original MTBS data (name, ignition date, and ID) were preserved to allow for joining to other MTBS data. Results include WEPP modeling results of hillslope and channel erosion, a sum of postfire debris flow modeling results and field-based measurements, and a few derived results such as total sediment and total yield (mass per area). Purpose: These data were produced as part of a USGS effort to estimate post-fire erosion across California from large wildfires between 1984 and 2021. Although data were produced at the watershed scale, we summed all watersheds associated with each fire in order to rank fires by postfire mass and yield. 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: Range_of_Dates/Times: Beginning_Date: 1984 Ending_Date: 2021 Currentness_Reference: This shapefile contains data on wildfires that occurred during this time period. Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -124.033608 East_Bounding_Coordinate: -115.179283 North_Bounding_Coordinate: 42.623928 South_Bounding_Coordinate: 32.542585 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Physical Habitats and Geomorphology Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: erosion Theme_Keyword: fires Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: sediment erosion 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: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:64bef0b9d34e70357a31c9ed Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: State of California 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 the California Geological Survey as the originator(s) of the dataset and in products derived from these data. 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 Enterprise Version 6.2 (Build 19045.2965); ArcGIS Desktop 10.8.1.14362 (64-bit). Cross_Reference: Citation_Information: Originator: Helen W. Dow Originator: Amy E. East Originator: Joel B. Sankey Originator: Jonathan A. Warrick Originator: Jaime Kostelnik Originator: Donald N. Lindsay Originator: Jason W. Kean Publication_Date: 2024 Title: Postfire sediment mobilization and its downstream implications across California, 1984–2021 Other_Citation_Details: Dow, H.W., East, A., Sankey, J.B., Warrick, J., Kostelnik, J., Lindsay, D.N., and Kean, J.W., 2024, Postfire sediment mobilization and its downstream implications across California, 1984 – 2021: Journal of Geophysical Research Earth Surface, https://doi.org/10.1029/2024JF007725. Online_Linkage: http://doi.org/10.1029/2024JF007725 Cross_Reference: Citation_Information: Originator: Jeff Eidenshink Originator: Brian Schwind Originator: Ken Brewer Originator: Zhi-Liang Zhu Originator: Brad Quayle Originator: Stephen Howard Publication_Date: 2007 Title: A Project for Monitoring Trends in Burn Severity Other_Citation_Details: Eidenshink, J., Schwind, B., Brewer, K., Zhu, Z.-L., Quayle, B., & Howard, S. (2007). A Project for Monitoring Trends in Burn Severity. Fire Ecology, 3(1), 3–21. https://doi.org/10.4996/fireecology.0301003 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: There are numerous sources of uncertainty in our dataset of mass mobilized by postfire erosion and debris flows such that rigorously quantifying the uncertainty was not possible. For a detailed summary of all sources of uncertainty we refer the reader to Dow and others 2024, the publication associated with this data release. Logical_Consistency_Report: This dataset was checked for logical consistency. Completeness_Report: The shapefile was checked for completeness. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: MTBS has a stated horizontal resolution of 30 m for its perimeters. As such, these data have a horizontal accuracy of 30 m. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Monitoring Trends in Burn Severity (MTBS) Agency Publication_Date: 2007 Title: MTBS Geospatial Datasets Publication_Information: Publication_Place: online Publisher: Monitoring Trends in Burn Severity (MTBS) Online_Linkage: https://www.mtbs.gov/ Type_of_Source_Media: Digital Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1984 Ending_Date: 2021 Source_Currentness_Reference: The digital data (shapefiles) were produced for fires between 1984 and 2021. Source_Citation_Abbreviation: MTBS perims Source_Contribution: We used the burn perimeters from MTBS to define the fire-affected region. Source_Information: Source_Citation: Citation_Information: Originator: Helen W. Dow Publication_Date: 2024 Title: Postfire erosion modeling results using the Water Erosion Prediction Project (WEPP) model for all large wildfires in California, 1984–2021 Geospatial_Data_Presentation_Form: shapefile Publication_Information: Publication_Place: online Publisher: ScienceBase Online_Linkage: https://doi.org/10.5066/P9CG3DRR Online_Linkage: https://www.sciencebase.gov/catalog/item/64bed061d34e70357a31c769 Type_of_Source_Media: Digital Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1984 Ending_Date: 2021 Source_Currentness_Reference: The digital data contain modeled erosion estimates for wildfires that occurred in this timeframe. Source_Citation_Abbreviation: WEPP results Source_Contribution: We used the WEPP results from this same data release to estimate hillslope and channel erosion following wildfire. Source_Information: Source_Citation: Citation_Information: Originator: Helen W. Dow Originator: Jaime Kostelnik Originator: Jason W. Kean Originator: Donald N. Lindsay Publication_Date: 2024 Title: Post-fire debris-flow volumes and their associated observation, location, and volume sources. Geospatial_Data_Presentation_Form: comma-delimited text Publication_Information: Publication_Place: online Publisher: ScienceBase Online_Linkage: https://doi.org/10.5066/P9CG3DRR Online_Linkage: https://www.sciencebase.gov/catalog/item/64bef5f7d34e70357a31c9f3 Type_of_Source_Media: Digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2024 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: PFDF results Source_Contribution: These data from this same data release summarize the contribution that postfire debris flows (PFDFs) made to annual postfire sediment erosion for each wildfire and the sources for the documentation of those debris flows, the locations of the debris flows, and the volumes of the debris flows, be it from field measurements or model. Process_Step: Process_Description: We used these data to find wildfires larger than one hundred square kilometers and all the data associated with them including their official MTBS names, ignition date, and perimeters. We then used the perimeters to create watersheds to run in the Water Erosion Prediction Project model (WEPP) and the names to look for documentation of postfire debris flows. Source_Used_Citation_Abbreviation: MTBS perims Process_Date: 2022 Process_Step: Process_Description: We used the WEPP results from this data release to estimate hillslope and channel erosion following wildfire. We then combined this with postfire debris flow modeling results and observations to produce annual postfire sediment budgets for California statewide, and northern and southern California. These data are analyzed and described in the associated publication (Dow and others, 2024). Source_Used_Citation_Abbreviation: WEPP results Source_Used_Citation_Abbreviation: PFDF results Process_Date: 2023 Process_Step: Process_Description: The metadata file was edited to correct an extra space in the Network Resource links. No data were changed. (mau@usgs.gov) Process_Date: 20241009 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 196 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: MTBSperims_LargeFires1984to2021_WEPPandPFDFresults.shp Entity_Type_Definition: Shapefile consisting of wildfire perimeters from MTBS joined to postfire erosion estimates produced using a combination of models and observations Entity_Type_Definition_Source: Producer defined. Attribute: Attribute_Label: Event_ID Attribute_Definition: Unique ID for each wildfire Attribute_Definition_Source: MTBS Attribute_Domain_Values: Unrepresentable_Domain: The Event-ID is generated by combining several attributes taken from the fire ignition location and start date. The Event-ID is constructed from the two-letter state abbreviation, the decimal degree latitude and longitude, both carried to the third decimal place without the decimal point (if less than 100 degrees the longitude is padded with a leading '0'), and the start date formatted as YYYYMMDD [copied from MTBS]. Attribute: Attribute_Label: Event_ID Attribute_Definition: Wildfire identifier in the MTBS system Attribute_Definition_Source: MTBS Attribute_Domain_Values: Unrepresentable_Domain: Unique identifier for each wildfire Attribute: Attribute_Label: Incid_Name Attribute_Definition: Wildfire name Attribute_Definition_Source: MTBS Attribute_Domain_Values: Unrepresentable_Domain: Unique name identifying each wildfire Attribute: Attribute_Label: Ig_Date Attribute_Definition: Date of wildfire ignition Attribute_Definition_Source: MTBS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7/1/1985 Range_Domain_Maximum: 9/12/2021 Attribute_Units_of_Measure: mm/dd/yyyy Attribute: Attribute_Label: DFmass_kg Attribute_Definition: Sum of modeled and observed postfire debris flow mass for each wildfire. Attribute_Definition_Source: producer-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 6363100000 Attribute_Units_of_Measure: kilograms Attribute: Attribute_Label: wepp_sed Attribute_Definition: Sum of sediment mass eroded from hillslopes within the fire perimeter during the first water year (Oct 1 – Sep 30) following the fire year as predicted by the WEPP model. Attribute_Definition_Source: producer-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1474080878.45 Attribute_Units_of_Measure: kilograms Attribute: Attribute_Label: total_sed Attribute_Definition: Sum of WEPP-derived hillslope sediment and debris-flow-derived sediment. Attribute_Definition_Source: producer-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 6400616887.53 Attribute_Units_of_Measure: kilograms Attribute: Attribute_Label: area Attribute_Definition: Polygon area as calculated in a geographic information system (GIS) within Albers conical projection Attribute_Definition_Source: producer-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 12.380700 Range_Domain_Maximum: 4325.250000 Attribute_Units_of_Measure: square kilometers Attribute: Attribute_Label: yield Attribute_Definition: total_sed divided by area. Attribute_Definition_Source: producer-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 23036918.8073 Attribute_Units_of_Measure: kilograms per square kilometer Overview_Description: Entity_and_Attribute_Overview: This dataset contains a summary of the postfire erosion results presented in Dow and others, 2024. Here the results for each wildfire are summarized and joined to the wildfire perimeter as produced by Monitoring Trends in Burn Severity. 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 in shapefile format (MTBSperims_LargeFires1984to2021_WEPPandPFDFresults.shp and associated files) contained in a single zip file (MTBSperims_LargeFires1984to2021_WEPPandPFDFresults.zip) accompanied by CSDGM FGDC-compliant metadata. 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: shapefile Format_Version_Number: ArcGIS 10.8.1 Format_Specification: Esri polygon shapefile Format_Information_Content: Zip file contains the interpreted polygons shapefiles File_Decompression_Technique: Unzip Transfer_Size: 14.965 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/64bef0b9d34e70357a31c9ed Network_Resource_Name: https://www.sciencebase.gov/catalog/item/64bef0b9d34e70357a31c9ed Network_Resource_Name: https://doi.org/10.5066/P9CG3DRR 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. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release. Fees: None. Technical_Prerequisites: These data can be viewed with any geospatial software. Metadata_Reference_Information: Metadata_Date: 20241009 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