Southern Pine Beetle Hazard Maps for <state_name>
 

Data format: TIF Images

 

File or table name: <State_Abbrev>_SPB_Hazard_600v1.tif

Abstract: As part of the third-generation (2010) National Insect and Disease Risk Map (NIDRM), the Forest Health Enterprise Team (FHTET), Ft. Collins, Colorado, is working with local resource managers to develop large-scale (30-meter resolution) risk and hazard assessments. These Southern Pine Beetle data are the result of one such assessment.

Southern pine beetle is one of the most destructive insects in the southern United States. Although southern pine beetle outbreaks have recently declined, significant outbreaks are expected in the next few years as drought and other environmental stresses continue to weaken host species across the South. Preferred hosts are shortleaf, loblolly, Virginia, and pitch pines.

To help identify areas with future potential for experiencing significant southern pine beetle activity, a hazard map was developed for states in and surrounding Region 8 of the Forest Service. Sets of site parameter and forest parameter layers were developed by FHTET as key input layers to the analysis. The Region 8 Southern Pine Beetle Hazard Map is a compilation of eight models run across 15 broad ecological zones in 18 southeastern and mid-Atlantic states including the District of Columbia (D.C.). Each model is constructed at a 30-meter resolution within a GIS environment using a multi-criteria modeling framework. The multi-criteria framework used on this project was developed during the construction of the 2006 National Insect and Disease Risk Map.

Identification Information:

 
Description:
Purpose:
The second-generation (2006) NIDRM assessed the risk of mortality for individual tree species at a resolution of 1-km (Krist et.al. 2007a) using species-specific forest parameters of the same resolution. This allowed for broad-scale analysis, but forest pests inherently operate at a larger scale. The first goal of the third-generation risk assessment is to derive the necessary forest parameters base-layers for individual tree species basal area and density at a 30-meter ground resolution. These would be used as input to further high-resolution models which will be used to determine a standardized 0 - 10 hazard assessment scale for every combination of host-species and hazard agent that is specific to each Model's extent. For this project, SPB Hazard is defined as the degree of vulnerability of a stand to SPB, based on stand and physiographic attributes.

 
Point of contact:
Contact information:
Contact organization primary:
Contact person: Frank Krist
Contact organization: USDA Forest Service, FHTET
Contact position: GIS and Spatial Analysis Program Manager


Contact address:
Address type: physical address
Address:
USDA Forest Service, FHTET
Address:
2150A Centre Avenue
City: Ft. Collins
State or province: CO
Postal code: 80526
Country: USA

Contact voice telephone: (970) 295-5845
Contact facsimile telephone: (970) 295-5815


Contact electronic mail address: fkrist@fs.fed.us


Hours of service: 0800 - 1600 Monday - Friday, Mountain Time


Cross reference:
Citation information:
Originators: Krist, F. J., Jr., Sapio, F. J., Tkacz, B. M.


Title:
Advances in Threat Assessment and their Application to Forest and Rangeland Management


Publication date: 2007
Publication time: In Press


Series information:
Series name: General Technical Report PNW xxx.Portland, OR

Publication information:
Publication place: Portland, OR
Publisher: USDA Forest Service, Pacific Northwest Research Station

Online linkage: http://www.fs.fed.us/foresthealth/technology/nidrm.shtml
Online linkage: http://www.fs.fed.us/foresthealth/technology/


Larger work citation:
Citation information:
Originators: Krist F., Sapio, F., Tkacz, B.


Title:
A Multi-Criteria Framework for Producing Local, Regional, and National Insect and Disease Risk Maps


Publication date: 2007


Online linkage: http://www.fs.fed.us/foresthealth/technology/nidrm.shtml
Online linkage: http://www.fs.fed.us/foresthealth/technology/


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Data Quality Information:


Lineage:
Process step 1:
Process description:
Assemble high-resolution (30-meter) national data sets of ecological mapping zone boundaries, cover types, soil drainage index, climatic predictor layers, and terrain variables as site parameters.

 
Process step 2:
Process description:
Identify a list of forest pests (risk / hazard agents) and their target host-species. This is conducted at the Model level, with Model extents generally constrained to specific ecological mapping zones.

 
Process step 3:
Process description:
Locate current USFS FIA plot and sub-plot centers and gather basal area and tree per acre data from FIA data sets.

 
Process step 4:
Process description:
Derive basal area and trees per acre surfaces as forest parameters for each host-species encountered within the remainder of each Model Area and adjust their histograms to match the FIA plot data.

 
Process step 5:
Process description:
Using site parameters from first Process Step and forest parameters from prior Process Step, work with field staff to build and run hazard models for every combination of host-species and hazard agent that is specific to each Model extent by state. For <state_name>, SPB models <model_numbers> are run on <species_names>.

 
Process step 6:
Process description:
Standardize model criteria, combine the Model extent results in a final 0 - 10 hazard-assessment scale using a series of weighted overlays, and aggregate the results by state.

 
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Spatial Reference Information:


Horizontal coordinate system definition:
Coordinate system name:
*Projected coordinate system name: NAD_1983_Albers
*Geographic coordinate system name: GCS_North_American_1983

Planar:
Map projection:
*Map projection name: Albers Conical Equal Area
Albers conical equal area:
*Standard parallel: 29.500000
*Standard parallel: 45.500000
*Longitude of central meridian: -96.000000
*Latitude of projection origin: 23.000000
*False easting: 0.000000
*False northing: 0.000000

Planar coordinate information:
*Planar coordinate encoding method: row and column
Coordinate representation:
*Abscissa resolution: 30.000000
*Ordinate resolution: 30.000000
*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

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Entity and Attribute Information:
Overview description:
Dataset overview:
To help identify areas with future potential for experiencing significant southern pine beetle activity, a hazard map was developed for states in and surrounding Region 8 of the USDA Forest Service. Sets of site parameter and forest parameter layers were developed by FHTET as key input layers to the analysis. The Region 8 Southern Pine Beetle Hazard Map is a compilation of eight models run across 15 broad ecological zones in 18 southeastern and mid-Atlantic states including the District of Columbia (D.C.). Each model is constructed at a 30-meter resolution within a GIS environment using a multi-criteria modeling framework. The multi-criteria framework used on this project was developed during the construction of the 2006 National Insect and Disease Risk Map.

Entity and attribute overview:
The southern pine beetle hazard rating for individual southeastern states on a standardized evaluation scale ranging from 0 - 10 assigned to each 30-meter square pixel.

Entity and attribute detail citation:
VALUEs = 0 - 10 represent the hazard rating index value on a standardized evaluation scale where: VALUEs = 0 - 3 represent 'Little or No' hazard, VALUE = 4 represents 'Low' hazard, VALUEs = 5 - 6 represent 'Moderate' hazard, VALUE = 7 represents 'Moderate / High' hazard, VALUE = 8 represents 'High' hazard, and VALUEs 9 - 10 represent 'Very High' hazard. VALUE = null represents non-forested land, non-<state_name> land, urban and paved areas or water.

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