Bureau of Land Management
BLM OR Fire History Polygon
FIRE_POLY: Fire History polygons represent the final mapped wildfire perimeter of all BLM fires 10 acres or larger across Oregon and Washington. In addition, wildfires smaller than 10 acres may be included along with many other non-BLM Federal and State agencies wildfires.
This dataset is used to display historic wildfire perimeters on maps. The number and spatial extent of fire across the landscape is important information for natural resource management and planning activities. Fire perimeters will be combined with a wide variety of other GIS datasets including habitat and special management areas for effects and impact analyses.
Data Standard is posted here: http://www.blm.gov/or/gis/data.php There is no lower size limit for fires to be included, although BLM does require capture of a final perimeter on fires 10 acres or larger in Type 1 (BLM land protected by BLM) and Type 2 (BLM land protected by another Federal agency under a cooperative agreement or contract; including mutual aid agreements) scenarios. Single tree ignitions and extremely small fires are generally omitted from FIRE_POLY and found only on FIRE_POINT. In addition, while FIRE_POINT contains fire origin points for most of the fires whose perimeters are included on FIRE_POLY, there are perimeters without a corresponding point; particularly for historic fires. It should be noted in the standard that the national standards (both BLM and Interagency) are being considered for revision and this standard should be considered interim until those updates occur.
US Forest Service
ISO 19115 Topic Categories
PUBLIC DATA: None, these data are considered public domain.
These data are provided by Bureau of Land Management (BLM) “as is” and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User’s intended use. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived, and both scale and accuracy may vary across the data set. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. These data are neither legal documents nor land surveys, and must not be used as such. Official records may be referenced at most BLM offices. Please report any errors in the data to the BLM office from which it was obtained. The BLM should be cited as the data source in any products derived from these data. Any Users wishing to modify the data should describe the types of modifications they have performed. The User should not misrepresent the data, nor imply that changes made were approved or endorsed by BLM. This data may be updated by the BLM without notification.
US Forest Service
333 Southwest First Avenue
FIRE PERIMETER POLYGONS (FIRE_POLY) Description: Instance of Fire group. Geometry: Polygons do not cover the landscape, nor do they cover all BLM lands continuously. In addition, there may be islands ("donut holes") of non-burned area surrounded by burned area. An individual fire may consist of multiple unattached polygons. Such polygon pieces should be stored as individual polygon records with common attribute values not as multi-part polygons. There are potentially many fires covering the same area in different years so there will be overlapping polygons. Topology: No topology enforced. Integration Requirements: None.
Created Fire_History geodatabase with feature classes, attributes, and domains according to the Fire History data standard. 2. Populated FIRE_POLY feature class with historical fire perimeters (1918-2012) submitted by each District, and adjusted attributes as needed. Attribute completness varied greatly across the submissions, particularly for perimeters pre-1980. 3. Loaded 23 missing large fire perimeters from NWCC_Fire_History_2000_2012 layer and adjusted attributes. 4. Identified and removed true duplicates.
Bureau of Land Management
Barbara W. Haney
P.O. Box 2965
GT-polygon composed of chains
D North American 1983
Points of origin for wildfires
Internal feature number.
Sequential unique whole numbers that are automatically generated.
The unit identifier for the agency that has primary protection responsibility at the point of origin at the time of the incident. The administrative unit at the fire’s point of origin. Domain values to lengthy to list. See Data Standard for complete list.
Coordinates defining the features.
Official fire incident number assigned at dispatching office. Obtained from Wildcad application. A four to six digit number assigned to a fire by the reporting unit that uniquely identifies an incident for a particular local fire management organization within a particular calendar year.
Cost accounting tracking number assigned by the FireCode application. For the BLM, pre-Fiscal Year 2004 (prior to the FireCode system), this is the fire number assigned to the incident by the reporting office.
The name assigned to an incident; assigned by responsible land management unit.
Name of complex. Applicable only if fire was incorporated into a complex at any point before declared contained. A complex is two or more incidents located in the same general area which are assigned to a single incident commander or unified command. Incidents are an occurrence, either human-caused or natural phenomenon, that requires action or support by emergency service personnel to prevent or minimize loss of life or damage to property and/or natural resources.
The year in which the fire occurred. In YYYY format.
A unique identifier generated for each wildland fire. Concatenation of fire year, FIRE_UNIT_ID, and FIRE_NUM yyyy-SSUUUU-xxxxxx yyyy = calendar year SSUUUU = FIRE_UNIT_ID xxxxxx = local incident identifier (FIRE_NUM)
The Unique Identifier (FireID) assigned to each fire in the Wildland Fire Management Information system (DOI fires only).
WFMI (Wildland Fire Management Information)
Local identifying number (code) for a fire. Legacy number or number used prior to assignment of official FIRE_NUM.
The date the fire was confirmed to exist or was reported as discovered. In YYYYMMDD format. UNKNOWN is an allowable entry.
A combination of the BLM administrative state and field office which has administrative responsibility for the spatial entity. This includes which office covers the entity for planning purposes and which office is the lead for GIS edits. Another agency or individual may have the physical management responsibility for the on-the-ground entity. This field applies particularly when a spatial entity crosses resource area or district boundaries and the administrative responsibility is assigned to one or the other rather than splitting the spatial unit. Similarly, OR/WA BLM may have administrative responsibility over some area that is physically located in Nevada, Idaho, and California and vice versa. When appropriate, the office can be identified only to the district or even the state level rather than to the resource area level.
Burns District Office
Three Rivers Field Office
Andrews Field Office
Coos Bay District Office
Umpqua Field Office
Myrtlewood Field Office
Eugene District Office
Siuslaw Field Office
Upper Willamette Field Office
Lakeview District Office
Klamath Falls Field Office
Lakeview Field Office
Medford District Office
Butte Falls Field Office
Ashland Field Office
Grants Pass Field Office
Glendale Field Office
Prineville District Office
Central Oregon Field Office
Deschutes Field Office
Roseburg District Office
Swiftwater Field Office
South River Field Office
Salem District Office
Cascades Field Office
Marys Peak Field Office
Tillamook Field Office
Vale District Office
Malheur Field Office
Baker Field Office
Jordan Field Office
Spokane District Office
Wenatchee Field Office
Border Field Office
The date the wildfire is surrounded by fireline or natural features such that its burning potential is reduced to a point that it no longer threatens further spread or resource damage under foreseeable conditions. UNKNOWN is an allowable entry. In YYYYMMDD format.
Time the fire was discovered expressed as Universal Time Co-Ordinated time. Also referred to as Zulu time. For example, 11:01 a.m. Pacific Standard time is 1901 Zulu. See http://navysite.de/what/zulu.htm for more information and a conversion table.
The date when all observable combustion has ceased or there is no risk that the fire will become active again and require additional control or management actions. UNKNOWN is an allowable entry.
The general circumstance which caused a fire or set the stage for its occurrence (Human vs Natural).
Cause of the fire is not known
Fire was caused by humans
Fire was naturally caused (e.g., lightning)
More detailed description of the cause of a fire than what is provided in CAUSE_CAT.
Name (mixed case, first and last) of the person or agency who provided the fire perimeter or point coordinates. For FIRE_POINT, this may be the name of the national database point coordinates were downloaded from.
The actual source of the GIS coordinates for the points. If the line is copied from another theme, and already has COORD_SRC, it should be reviewed and may need to be changed for use in this dataset.
Lines from or snapped to the CADNSDI dataset
Lines duplicated or buffered from Cartographic Feature Files
Digital Elevation Model (30m or better accuracy) used for creation of contours
Lines duplicated or buffered from (24K scale accuracy) USGS Digital Line Graphs Typical Accuracies (40 feet)
Lines generated to connect discontinuous features
Screen digitized linework over Digital Orthoquad backdrop
Screen digitized linework over Digital Raster Graphic (USGS) backdrop
Lines snapped to Geographic Coordinate Database Points
Lines obtained from a Global Positioning System device
Linework derived from interpretation of non-photographic imagery
Digitized line work from hardcopy map
Lines duplicated from Digital Master Title Plat
Source layer from BLM GIS
Survey methods were used to create the linework
Coordinates only given as a legal description (township, range,section)
Unknown coordinate source
WODDB (Western Oregon Digital Database) Photogrammetric
Date the coordinates, whose source is listed in COORD_SRC, were collected. In YYYYMMDD format.
How close, in feet, the spatial GIS depiction is to the actual location on the ground. There are several factors to consider in GIS error: scale and accuracy of map-based sources, accuracy of GPS equipment, and the skill level of the data manipulators. A value of “0” indicates no entry was made. This is the correct value when the COORD_SRC is another GIS theme (Digital Line Graph, Cadastral National Spatial Data Infrastructure and Digital Elevation Model) because the accuracy is determined by that theme. However, if COORD_SRC is MAP (digitized from a paper map) or GPS, a value of “0” indicates a missing value that should be filled in either with a non-zero number or “-1.” A value of “-1” indicates that the accuracy is unknown and no reliable estimate can be made.
Official final reported burned acres. May differ from GIS_ACRES total.
Free text for comments about the fire point
Name of the corporate geodatabase version previously used to edit the record.
Automatically generated ID number
Bureau of Land Management
GIS Data Management Specialist
P.O Box 2965
The BLM assumes no responsibility for errors or omissions. No warranty is made by the BLM as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data; nor shall the act of distribution to contractors, partners, or beyond, constitute any such warranty for individual or aggregate data use with other data. Although these data have been processed successfully on computers of BLM, no warranty, expressed or implied, is made by BLM regarding the use of these data on any other system, or for general or scientific purposes, nor does the fact of distribution constitute or imply any such warranty. In no event shall the BLM have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of the use or reliance on the geographic data or arising out of the delivery, installation, operation, or support by BLM.
Data are only available through the Oregon/Washington State office of the Bureau of Land Management.
Bureau of Land Management, Oregon State Office
P.O. Box 2965
FGDC Content Standard for Digital Geospatial Metadata