Twenty Mile Aspect Polygon 9 - USTWM009
Additional Site Information

Richard L. Everett, Richard Schellhaas, Don Spurbeck, Pete Ohlson, Dave Keenum


Dating Method: Crossdated

Reference: Everett, R. L., R. Schellhaas, D. Keenum, D. Spurbeck and P. Ohlson.
2000. Fire history in the ponderosa pine/Douglas-fir forests on the east
slope of the Washington Cascades. Forest Ecology and Management
129:207-225. 

Hessl, A. E., McKenzie, D., and Everett, R. 2004. Fire and climatic
variability in the inland Pacific Northwest.  Ecological Applications
14:425-442. 

Comments: This is one of 13 separate aspect polygon subsites that make
up the larger 2,993 ha Twenty Mile site. Each of the 13 subsites have been 
archived separately using the following filenames (with ".fhx" appended 
for the FHX2 data files and ".txt" appended for the accompanying 
documentation files): ustwm001, ustwm002, ustwm003, ustwm004, ustwm005,
ustwm006, ustwm007, ustwm008, ustwm009, ustwm010, ustwm011, ustwm012, ustwm013.

Individual Tree Information: 
(Tree ID, Species, Diameter at Breast Height(cm), Status, Latitude(dd), Longitude(dd))
D72,Pseudotsuga menziesii,32,cut stump,48.653987077,-120.095022403
D83,Pinus contorta,12,snag,48.651123284,-120.086203393
D84,Pinus ponderosa,20,cut stump,48.650781717,-120.085858902
D85,Pinus ponderosa,10,cut stump,48.650881841,-120.086263767
D86,Pinus ponderosa,23,cut stump,48.650457324,-120.086196186
K12,Pinus ponderosa,11,live,48.641573305,-120.089975034
K1,Pseudotsuga menziesii,18,snag,48.645784658,-120.081467169
P144,Pinus ponderosa,30,snag,48.638971474,-120.089558377
P232,Pinus ponderosa,40,cut stump,48.643195280,-120.095236316
P233,Pinus ponderosa,36,cut stump,48.654112013,-120.094980722
P262,Pinus ponderosa,32,live,48.665843614,-120.087453074
P53,Pinus ponderosa,50,live,48.666173909,-120.089130913
P55,Pseudotsuga menziesii,14,live,48.667094537,-120.090486206
P60,Pinus ponderosa,31,live,48.662674316,-120.089325397
P80,Pinus ponderosa,27,cut stump,48.646778173,-120.097091267
P84,Pinus ponderosa,19,live,48.641377508,-120.089703092
P85,Pinus ponderosa,18,live,48.638867743,-120.089905064
P86,Pinus ponderosa,27,cut stump,48.638812948,-120.090586882
R30,Pseudotsuga menziesii,26,cut stump,48.639578957,-120.091165160
R31,Pinus ponderosa,26,cut stump,48.639033234,-120.090403877

Fire History Graphs: Fire History Graphs illustrate specific years when 
fires occurred and how many trees were scarred. They are available in both 
PDF and PNG formats. The graphs consist of 2 parts, both of which show the 
X axis (time line) at the bottom with the earliest year of information on 
the left and the latest on the right.
The Fire Index Plot is the topmost plot, and shows two variables: sample 
depth (the number of recording trees in each year) as a blue line along 
the left Y axis, compared with the percent trees scarred shown as gray bars 
along the right Y axis.
Below, the Fire Chronology Plot consists of horizontal lines representing
injuries by year on individual sampled trees. Symbols are overlain that 
denote the years containing the dendrochronologically-dated fire scars or
injuries. The sample ID of each tree is displayed to the right of each
line. The Composite Axis below represents the composite information from
all individual series. The symbols used to represent the fire scars or
injuries, and the filters used to determine the composite information,
are shown in the legend.
These graphs were created using the Fire History Analysis and Exploration
System (FHAES). See http://frames.nbii.gov/fhaes/ for more information.