Postfire erosion modeling results using the Water Erosion Prediction Project (WEPP) model for all large wildfires in California, 1984–2021

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Helen Dow
Publication_Date: 20240807
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
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:

This is a shapefile containing polygons of watersheds that were burned in wildfires that occurred in California between 1984 and 2021. The Water Erosion Prediction Project (WEPP) model for postfire erosion was run on all watersheds for the first year following wildfire and the results of this modeling effort are included as attributes of each watershed polygon.

Purpose:

The information contained in this shapefile was used to produce estimates of annual postfire erosion across California. Watersheds were grouped by wildfire and by year for analysis. We then combined these WEPP results for each wildfire and fire year with estimates of the sediment mass contributed by postfire debris flows.

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:

Wildfires that occurred during this time period were part of our study.

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -124.205014
East_Bounding_Coordinate: -115.178253
North_Bounding_Coordinate: 42.632207
South_Bounding_Coordinate: 32.554034

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:64bed061d34e70357a31c769

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 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

Cross_Reference:

Citation_Information:

Originator: Roger Lew
Originator: Marian Dobre
Originator: Anurag Srivastava
Originator: Erin S. Brooks
Originator: William J. Elliot
Originator: Peter R. Robichaud
Originator: Dennis C. Flanagan
Publication_Date: 2022
Title:

WEPPcloud: An online watershed-scale hydrologic modeling tool. Part I. Model description

Other_Citation_Details:

Lew, R., Dobre, M., Srivastava, A., Brooks, E. S., Elliot, W. J., Robichaud, P. R., & Flanagan, D. C. (2022). WEPPcloud: An online watershed-scale hydrologic modeling tool. Part I. Model description. Journal of Hydrology, 127603.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

There are numerous sources of uncertainty in the WEPP modeling such that a rigorous quantification of error was not feasible. For a detailed summary of all sources of uncertainty we refer the reader to publication associated with this data release.

Logical_Consistency_Report:

This dataset was checked for logical consistency such that it should not contain any duplicated watersheds or nested basins.

Completeness_Report:

This dataset was checked for completeness and no data or attributes were intentionally left blank.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

This dataset was created using Monitoring Trends in Burn Severity (MTBS) perimeters and digital elevation models (DEMs) in WEPP, both of which have a horizontal resolution of 30 m.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: 5 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 and rasters) were produced for fires between 1984 and 2021.

Source_Citation_Abbreviation: MTBS data
Source_Contribution:

We used the burn perimeters from MTBS to define the fire-affected region and produce watersheds to run in WEPP. We used the dNBR6 (classified difference normalized burn ratio) maps as input to WEPP.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Roger Lew
Originator: SrivAnu
Publication_Date: 2021
Title: wepppy-win-bootstrap
Geospatial_Data_Presentation_Form: software
Publication_Information:

Publication_Place: online
Publisher: zenodo

Online_Linkage: https://doi.org/10.5281/zenodo.4902236

Type_of_Source_Media: Software
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2021

Source_Currentness_Reference:

We used the version of wepppy published in 2022 and documented in zenodo here:

Source_Citation_Abbreviation: wepppy
Source_Contribution:

We used the wepppy Python module presented in this publication and documented in the above zenodo link to run the Water Erosion Prediction Project (WEPP) model on all watershed polygons contained in this dataset.

Process_Step:

Process_Description:

We used the shapefile of fire perimeters from MTBS to define the fire-affected region and created a shapefile of watersheds to run in the Water Erosion Prediction Project model (WEPP).

Source_Used_Citation_Abbreviation: MTBS data
Process_Date: 2022
Source_Produced_Citation_Abbreviation: watersheds

Process_Step:

Process_Description:

We used the Python module called wepppy to run WEPP on the watershed polygons contained in this shapefile using dNBR6 burn severity maps from MTBS. We then joined the results of the WEPP model to the shapefile of watershed characteristics like relief and drainage area.

Source_Used_Citation_Abbreviation: watersheds
Source_Used_Citation_Abbreviation: wepppy
Process_Date: 2022

Process_Step:

Process_Description:

Minor edits were made to the metadata to correct the date formatting for a citation. 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: 23486

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: BurnedWatersheds_LargeFires1984to2021_WEPPresults.shp
Entity_Type_Definition:

Shapefile consisting of polygons of burned watersheds, results of the WEPP model, and watershed characteristics.

Entity_Type_Definition_Source: Producer defined

Attribute:

Attribute_Label: fire_name
Attribute_Definition:

The name of the wildfire, derived from MTBS data ‘Incid_Name’ to include underscores for ease of export from WEPP.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Unrepresentable_Domain: A unique identification name assigned to each fire.

Attribute:

Attribute_Label: fire_year
Attribute_Definition:

The year the wildfire occurred in, derived from MTBS ‘Ig_Date’.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1985
Range_Domain_Maximum: 2021
Attribute_Units_of_Measure: years
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: utmzone
Attribute_Definition: The utm zone in which the wildfire occurred.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10S
Enumerated_Domain_Value_Definition:

A 6-degree zone defined in the universal transverse Mercator projection.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 11S
Enumerated_Domain_Value_Definition:

A 6-degree zone defined in the universal transverse Mercator projection.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10T
Enumerated_Domain_Value_Definition:

A 6-degree zone defined in the universal transverse Mercator projection.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: basin_id
Attribute_Definition: Identification number for each watershed within each wildfire.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 2030
Attribute_Units_of_Measure: NA
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: relief
Attribute_Definition: Maximum elevation within watershed minus minimum elevation.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 20
Range_Domain_Maximum: 2442
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: outlet_x
Attribute_Definition:

The x-coordinate of the watershed’s outlet in the local UTM zone(either 10 or 11N).

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 208835.2842
Range_Domain_Maximum: 791188.2039
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 0.00001

Attribute:

Attribute_Label: outlet_y
Attribute_Definition:

The y-coordinate of the watershed’s outlet in the local UTM zone (either 10 or 11N).

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3601311.03400
Range_Domain_Maximum: 4719704.31900
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 0.00001

Attribute:

Attribute_Label: dr_area
Attribute_Definition: Drainage area of each watershed.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.100
Range_Domain_Maximum: 45.0
Attribute_Units_of_Measure: square kilometers
Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: hill_sed
Attribute_Definition:

WEPP result for postfire sediment eroded from hillslopes. Exact model results are shown even though the accuracy is likely much lower than the output resolution.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 233959518.734
Attribute_Units_of_Measure: kilograms

Attribute:

Attribute_Label: fr_low
Attribute_Definition: Fraction of the watershed burned at low severity.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 1
Attribute_Units_of_Measure: unitless

Attribute:

Attribute_Label: fr_mod
Attribute_Definition: Fraction of the watershed burned at moderate severity.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 1
Attribute_Units_of_Measure: unitless

Attribute:

Attribute_Label: fr_high
Attribute_Definition: Fraction of the watershed burned at high severity.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 1
Attribute_Units_of_Measure: unitless

Attribute:

Attribute_Label: precip_tot
Attribute_Definition: Total annual precipitation
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 45.5
Range_Domain_Maximum: 4108.8
Attribute_Units_of_Measure: millimeters

Attribute:

Attribute_Label: precip_dur
Attribute_Definition: Total annual duration of precipitation.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 33.9
Range_Domain_Maximum: 2246.8
Attribute_Units_of_Measure: hours

Attribute:

Attribute_Label: tp_med
Attribute_Definition:

Annual median of CLIGEN-generated WEPP input parameter tp that defines the ratio of time to peak intensity to total storm duration.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 0.1
Attribute_Units_of_Measure: unitless

Attribute:

Attribute_Label: ip_med
Attribute_Definition:

Annual median of CLIGEN-generated WEPP input parameter ip that defines the ratio of storm peak intensity to average intensity.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.0
Range_Domain_Maximum: 6.4
Attribute_Units_of_Measure: unitless

Attribute:

Attribute_Label: ub_hillsed
Attribute_Definition:

WEPP result for sediment eroded from hillslopes in the unburned scenario (no SBS map). Exact model results are shown even though the accuracy is likely much lower than the output resolution.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 94713194.2626
Attribute_Units_of_Measure: kilograms

Overview_Description:

Entity_and_Attribute_Overview:

This dataset contains one shapefile with all the WEPP modeling results for all watersheds modeled in WEPP as part of the associated study on postfire erosion from large fires in California between 1984 and 2021.

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 (BurnedWatersheds_LargeFires1984to2021_WEPPresults.shp and associated files) contained in a single zip file (BurnedWatersheds_LargeFires1984to2021_WEPPresults.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 and the associated metadata.

File_Decompression_Technique: Unzip
Transfer_Size: 24.84

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/64bed061d34e70357a31c769

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/64bed061d34e70357a31c769

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

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P9CG3DRR/BurnedWatersheds_LargeFires1984to2021_WEPPresults_metadata.html>