| ArcGIS REST Services Directory |
| Home > services > OR_POP_CHANGE_WFL1 (FeatureServer) > All Layers and Tables | | API Reference |
U.S. Geographic Names Information System Hospitals represents the Federal standard for geographic nomenclature and contains information about the proper names and locations of physical and cultural geographic features located throughout the United States and its Territories. The U.S. Geological Survey developed the Geographic Names Information System (GNIS) for the U.S. Board on Geographic Names, a Federal inter-agency body chartered by public law to maintain uniform feature name usage throughout the Government and to promulgate standard names to the public.
The wildland-urban interface (WUI) is the area where structures and other human development meet or intermingle with undeveloped wildland, and it is where wildfires have their greatest impacts on people. The WUI is composed of both interface and intermix communities. The distinction between these is based on the characteristics and distribution of houses and wildland vegetation across the landscape. Intermix WUI refers to areas where housing and wildland vegetation intermingle, while interface WUI refers to areas where housing is in the vicinity of a large area of dense wildland vegetation.
In this dataset, the University of Wisconsin's 2010 SILVIS WUI dataset was used as a base WUI. To this, ODF brought in local data from past Community Wildfire Protection Plan (CWPP) and Wildland Urban Interface (WUI) data from all counties in Oregon to capture WUI areas locally designated and/or established after 2010. In addition, the Oregon Department of Land Conservation and Development (DLCD) 2017 Land Use Zoning was also used to attribute some areas that were not attributed as WUI in the 2010 SILVIS WUI dataset. Wildfire hazard values were assigned to each WUI area largely based on Burn Probability from the 2018 PNW Quantitative Wildfire Risk Assessment, modified to accommodate local designations where applicable.
----------------------------------------
An ArcGIS symbology layer file is associated with this dataset to show the wildfire hazard ratings as seen in the metadata browse graphic. The attribute field used is "Modified_Rating_QWRA18BP_CWPP."
Other attribute fields that may be useful are:
WUIClass_Modified_Oregon - shows wui class interface and intermix from SILVIS WUI and DLCD zoning where applicable.
WUIClass10 - is the original SILVIS WUI designation as of 2010. Prior WUIClass90 etc may be usful for change detection studies.
OR_WUI_Community - shows locally named community names - sometimes very close neighborhood names are concatenated and could be cleared up in the next update of this dataset.
----------------------------------------
----------------------------------------
Processing steps:
----------------------------------------
Gathering the WUI polygon data:
Spatial Joins to the source SILVIS WUI dataset: CWPPs, "Locally Named Communities" (from 2012-2017 WUI & CWPPs), City Limits, Structural Fire Districts, and 5 mile buffer of all Oregon town points to capture very rural towns without City Limits and to capture the towns at risk in the Pyrologix/USFS 2018 PNW QWRA Supplemental Briefing Paper "Exposure of human communities to wildfire in the Pacific Northwest"
http://pyrologix.com/wp-content/uploads/2019/11/RiskToCommunities_OR-WA_BriefingPaper.pdf
Spatial Join with DLCD Oregon 2017 Land Use Zoning.
Deleted all polys from WUI that were not WUI or a Locally Named Comunity, FedRegister, or Land Use zone that appeared to be built-environment. For example, some rural areas had a DLCD residential zoning, or other built environment, etc., but Silvis had it as "Uninhabited_Veg" etc.
Checked with West Wide Wildfire Risk Assessment "Where People Live" data - there was not enough of a difference to further process with WPL to add data in (very low density veg).
Err'd on the side of inclusion - kept many areas that are "Very Low Density Veg," "Very Low Density NoVeg," and "Uninhabited Veg" in the SILVIS WUI due to local community presense and/or DLCD residential or rural built-environment zoning.
----------------------------------------
Associated with QWRA to obtain Wildfire Hazard values:
Calculated Zonal Statistics for each poly using "Burn Probability" for hazard ratings to wui polys. Adjusted hazard levels up in cases where local info / National Fire Plan Coordinator informed the hazard levels. Translated burn probability values into 7 adjective classes based on the Pyrologix/QWRA classification, merged down to 3 main classes (low, moderate, high).
----------------------------------------
A Community Wildfire Protection Plan (CWPP) is a plan developed by a community in an area with exposure to wildfire. The Community Wildfire Protection Planning process is a collaboration between communities and agencies interested in reducing their susceptibility to wildfire.
A valid CWPP has three minimum requirements. First, the plan must be collaboratively developed by local and state government representatives in consultation with federal agencies and other interested parties. Second, the plan must identify and prioritize areas for hazardous fuel reduction treatments, as well as recommending methods of treatments that will protect at-risk communities and essential infrastructure. Third, the plan must recommend measures that homeowners and communities can take to reduce ignitability of structures throughout the area addressed by the plan.
The Healthy Forest Restoration Act (HFRA) requires that three decision-makers mutually agree to the final contents of the CWPP. The three are the applicable local government (i.e. counties or cities), the local fire department(s) and the State entity responsible for forest management (ODF). These three are directed to consult with and involve local representatives of the USFS and BLM and other interested parties or persons in the development of the CWPP.
The statutory definition of a CWPP appears in Title I of the HFRA. The HRFA decrees that communities, which have a CWPP in place, will be a priority for receiving hazardous fuels reduction funding administrated by the USFS and BLM.
U.S. Counties (Generalized) represents the counties of the United States in the 50 states and the District of Columbia.
U.S. Census Block Groups represents the Census block groups of the United States in the 50 states, the District of Columbia, and Puerto Rico.
U.S. Counties (Generalized) represents the counties of the United States in the 50 states and the District of Columbia.
U.S. Rivers (Generalized) represents the major rivers within the United States.
U.S. States (Generalized) represents the 50 states and the District of Columbia of the United States.