firehis_pl

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Jan Henderson
Publication_Date: 10/1998
Title: firehis_pl
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage:
Description:
Abstract:
This theme displays broad areas that were burned, typically large fires, since approximately the year 1000.
Purpose:
This coverage is one of the data sources that indicates the year of origin fo a forested stand. Use of this theme is most appropriate at the larger, landscape level, for example, for watershed and river basin analysis. The theme is too generalized for site-specific, detailed application. This coverage indicates the most recent year an area burned.
Supplemental_Information:
In the future, this coverage will be linked to a database which will track the various years that an area was burned.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.141219
East_Bounding_Coordinate: -120.851304
North_Bounding_Coordinate: 49.013044
South_Bounding_Coordinate: 46.792085
Keywords:
Theme:
Theme_Keyword_Thesaurus: Mt. Baker-Snoqualmie GIS
Theme_Keyword: Fire History
Theme_Keyword: Burned
Access_Constraints: None
Use_Constraints:
This product is reproduced from information prepared by the USDA, Forest Service or from other suppliers. The Forest Service cannot assure the reliability or suitability of this information for a particular purpose. The data and product accuracy may vary due to compilation from various sources, including modeling and interpretation, and may not meet National Map Accuracy Standards. This information may be updated, corrected or otherwise modified without notification. For more information contact: Mt. Baker-Snoqualmie National Forest Supervisors Office at 425-888-1421 ext. 215 The USDA is an equal opportunity provider and employer.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jan Henderson
Contact_Organization: Mt. Baker-Snoqualmie National Forest
Contact_Position: Area Ecologist
Contact_Address:
Address_Type: mailing address
Address: 2930 Wetmore Ave, Suite 3A
City: Everett
State_or_Province: Washington
Postal_Code: 98021
Country: United States
Contact_Voice_Telephone: 425.774.5627
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.2.2.1350

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: The last year a polygon burned may represent a span of years.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value: 1701
Attribute_Accuracy_Explanation:
1701 was a dominant year, by may include the years prior to and after 1701; also, may include fires in 1668, or in the Green and Cedar River basins, may include fires in the 1720's.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value: 1308
Attribute_Accuracy_Explanation:
1308 was a dominant year, but may include aggregates from the 1200's, 1250's, and 1300's.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value: "xx00"
Attribute_Accuracy_Explanation:
Years ending in "00" (i.e. 1700, 1800) represent approximate years since the actual year of the fire is not known.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value: 1508
Attribute_Accuracy_Explanation: Prior to year 1508, the assigned fire dates are uncertain.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Estimated at approximately 90%
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: Estimated at approximately 90%
Lineage:
Source_Information:
Source_Scale_Denominator: 24000
Type_of_Source_Media: stable-base material
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Currentness_Reference: publication date
Process_Step:
Process_Description:
Polygons were manuscripted by ecology personnel using a variety of documentation, ecology plots, orthophotography, and historical aerial photography. Fire records (of recent fires) kept by the Forest were consulted. The TRI/ORACLE vegetation database activity records provided additional information on fire locations, particularly for those occurring in the 20th century. Vegetation changes discernable on the aerial photography were also delineated. Field data from ecology plots included fire scar analysis of stumps and from increment cores; in the case of Douglas fir (which does not scar), abrupt growth changes may show the fire history. Approximately one sample per square mile section has been collected.

Updates made in 1998 included using data from other sources. For example, non-forested polygons (including lakes, rock, ice) were copied from the Wildlife Habitat theme; harvest clearcut dates were copied from the TRI Vegetation theme and TRI*Oracle database.

This coverage has not been vertically integrated with other vegetation coverages. Therefore, the boundaries of the fire polygons (notably the fires in the 20th century) are subject to minor adjustments. Also, non-forested areas inside a fire polygon may not be displayed. The codes indicated for water and rocks were not applied consistently; therfore, other vegetation coverages will show many more water and non-forested features than this coverage.

Within a fire polygon, the entire area probably did not burn. On the average, approximately 75% of the area burned. Parklands above forested lands usually did not burn. In some cases, parklands did burn, but the data have not been compiled yet to reflect the fire history.

Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jan Henderson
Contact_Organization: Mt. Baker-Snoqualmie National Forest
Contact_Position: Area Ecologist
Contact_Address:
Address_Type: mailing and physical address
Address: 21905 64th Avenue West
City: Mountlake Terrace
State_or_Province: WA
Postal_Code: 98043-2278
Contact_Voice_Telephone: 425-744-3462
Process_Step:
Process_Description: Dataset copied.
Source_Used_Citation_Abbreviation: f:\external_fire\fire\7440\firehis_pl

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Complete chain
Point_and_Vector_Object_Count: 4511
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Label point
Point_and_Vector_Object_Count: 1569
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 1569
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 4

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 48.000000
Standard_Parallel: 43.000000
Longitude_of_Central_Meridian: -120.000000
Latitude_of_Projection_Origin: 34.000000
False_Easting: 600000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: firehis_pl.aat
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: FNODE#
Attribute_Definition: Internal node number for the beginning of an arc (from-node).
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Whole numbers that are automatically generated.
Attribute:
Attribute_Label: TNODE#
Attribute_Definition: Internal node number for the end of an arc (to-node).
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Whole numbers that are automatically generated.
Attribute:
Attribute_Label: LPOLY#
Attribute_Definition: Internal node number for the left polygon.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Whole numbers that are automatically generated.
Attribute:
Attribute_Label: RPOLY#
Attribute_Definition: Internal node number for the right polygon.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Whole numbers that are automatically generated.
Attribute:
Attribute_Label: LENGTH
Attribute_Definition: Last year a polygon burned.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: FIREHIS_PL#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: FIREHIS_PL-ID
Attribute_Definition: User-defined feature number.
Attribute_Definition_Source: ESRI
Attribute:
Attribute_Label: AREA
Attribute_Definition: Area of feature in internal units squared.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of feature in internal units.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: FIREHIS_PL
Attribute:
Attribute_Label: FIREHIS__1
Attribute:
Attribute_Label: NIFMID_CN
Attribute:
Attribute_Label: NIFMID_LNK
Attribute:
Attribute_Label: FIRE_NAME
Attribute:
Attribute_Label: FIRE_DAY
Attribute:
Attribute_Label: FIRE_MONTH
Attribute:
Attribute_Label: FIRE_YEAR
Attribute:
Attribute_Label: DATA_SOURC
Attribute:
Attribute_Label: COST
Attribute:
Attribute_Label: LOCAL_NUMB
Attribute:
Attribute_Label: CAUSE
Attribute:
Attribute_Label: REPORTED_A
Attribute:
Attribute_Label: SIZE_CLASS
Attribute:
Attribute_Label: AGENCY
Attribute:
Attribute_Label: COMMENTS
Attribute:
Attribute_Label: R6_FID
Detailed_Description:
Entity_Type:
Entity_Type_Label: firehis_pl.pat
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: AREA
Attribute_Definition: Area of feature in internal units squared.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of feature in internal units.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: FIREHIS_PL#
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: FIREHIS_PL-ID
Attribute_Definition: User-defined feature number.
Attribute_Definition_Source: ESRI
Attribute:
Attribute_Label: NIFMID_CN
Attribute:
Attribute_Label: NIFMID_LNK
Attribute:
Attribute_Label: FIRE_NAME
Attribute:
Attribute_Label: FIRE_DAY
Attribute:
Attribute_Label: FIRE_MONTH
Attribute:
Attribute_Label: FIRE_YEAR
Attribute:
Attribute_Label: DATA_SOURCE
Attribute:
Attribute_Label: COST
Attribute:
Attribute_Label: LOCAL_NUMBER
Attribute:
Attribute_Label: CAUSE
Attribute:
Attribute_Label: REPORTED_ACRES
Attribute:
Attribute_Label: SIZE_CLASS
Attribute:
Attribute_Label: AGENCY
Attribute:
Attribute_Label: COMMENTS
Attribute:
Attribute_Label: R6_FID
Overview_Description:
Entity_and_Attribute_Overview:
Code Code Value Description poly-id xxxx Integer Random number assigned to identify polygon. Primary key related to look-up table containing additional attributes.

burned xxxx Integer Last year a polygon burned [See Attribute Accuracy section that follows.] Examples: 0 no data - outside the MBSNF boundary 3999 Unknown 5555 Polygon to be dissolved during next round of editing 6666 Lakes/Water 9999 non-forested 1000 Never burned or forest origin prior to year 1000 A.D. 1100 Never burned or forest origin prior to year 1100 A.D. 1701 Polygon burned around year 1701


Distribution_Information:
Resource_Description: Downloadable Data
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 3.126

Metadata_Reference_Information:
Metadata_Date: 20071214
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Mt. Baker-Snoqualmie National Forest
Contact_Person: Paula James
Contact_Position: GIS Analyst
Contact_Address:
Address_Type: mailing and physical address
Address: 42404 SE North Bend Way
City: North Bend
State_or_Province: Washington
Postal_Code: 98045
Country: United States
Contact_Voice_Telephone: 425.888.1421
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.8.6 on Fri Dec 14 11:21:48 2007