Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.3.0.800
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All attributes were verifed by the individual Weather Forecast Offices (WFOs) by inspection of the data with a GIS or by viewing a hard or software image of the data. Error reports of errors received from WFO's and external users also contributed to the accuracy of the Attributes.
Logical_Consistency_Report:
These data are believed to be logically consistent. Testing was performed by finding the smallest polygons and determining them to be "slivers" or genuine polygons and by overlaying a large polygon and combining, to find "holes' in the data. Since this data set is a polygon shapefile line geometry is presumed to be topologically clean.
Completeness_Report:
The shoreline boundaries of the data is dependent on the shoreline edges of rivers and bays as delineated on a USGS DLG The edges or borders of the boundary might change as the natural land changes and WFOs request changes. The zone boundaries are consistent with county boundaries when county boundaries coorespond to zone boundaries and the accuracy of the zone boundries that do not lie on county boundaries as provided by the WFO or other sources containing boundaries for National and State Forests.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The data was created from USGS 1:2,000,000 DLG county data and assumed to have the same horizontal accuracy of that data. set. The internal accuracy of the zones that "split" counties varies depending on the criteria used to "split" the county (township line, coutour line, hand drawn, etc).
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: National Weather Service
Publication_Date: 1995
Title: Public Forecast Zones
Geospatial_Data_Presentation_Form: vector digital data
Type_of_Source_Media: online shapefile in "zip" format
Source_Information:
Source_Citation:
Citation_Information:
Originator: National Park Service
Publication_Date: April 1999
Title: National Park System Boundary Dataset
Geospatial_Data_Presentation_Form: vector digital data
Source_Scale_Denominator: 2,000,000
Type_of_Source_Media: Shapefile
Process_Step:
Process_Description:
The Public Forecast Zone shapefile was copied to become a Fire Weather Zone shapefile. Information, either in digital (shapefile) or text form was obtained from the WFOs for those fire zones that differ from the public zones. Approriate edits were made using polygon splits and unions to create the fire weather zones.
Source_Used_Citation_Abbreviation: Public Forecast Zones
