Black Bear - USBEE002
Heyerdahl, E. K.; Falk,D,A..; Loehman, R.A.

Dating method: crossdated

Sample storage location: Laboratory of Tree-Ring Research, University of Arizona

Establishment data from this site are available at:
https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/establishment/northamerica/usbee002.dat

NOAA/IMPD web landing page for this fire history site is available at:
https://ncdc.noaa.gov/paleo/study/23654

NOAA/IMPD DIF and JSON metadata records for this fire history site are available at:
https://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-fire-23654.xml and https://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/json/noaa-fire-23654.json

FHX filename: https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usbee002.fhx

IMPD code: USBEE002

Name of site: Black Bear

Site code: BBE

Contributors: Heyerdahl, E. K.; Falk,D,A..; Loehman, R.A.

Latitude: 44.401615 (WGS84)

Longitude: -119.706649 (WGS84)

Mean elevation: 1672 (meters)

Country: United States

State: Oregon

Region: central Oregon

First year: 1403 AD

Last year: 2011 AD

Species name: Pinus ponderosa [PIPO], Larix occidentalis [LAOC], Pseudotsuga menziesii [PSME]

Funding agency names and grant numbers: 
National Fire Plan, Rocky Mountain Research Station, Central Oregon Fire Management Service (Deschutes and Ochoco National Forests, Crooked River National Grassland, and Prineville District Bureau of Land Management), Forest Service Region 6, The Nature Conservancy, and The University of Arizona

Comments:
This site was sampled as part of a project to reconstruct historical fire regimes in central Oregon.

White fir (Abies concolor) and grand fir (Abies grandis) hybridize in the sampling area and are difficult to identify in the field so we did not attempt to distinguish between these two species, but report them as a combined category.

Ring-boundary fire scars were assigned to the preceding calendar year.

Several metadata files are provided with the FHX file.   -999 in any file indicates no data.

https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/supplemental/usbee002_plot_data.csv provides information on the plots.

https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/establishment/northamerica/usbee002.dat provides information on the trees from which we attempted to remove wood samples (at least 20 cm in diameter at breast height (1.4 m) from which it appeared we could obtain an intact wood sample).  

https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/supplemental/usbee002_saplings.csv provides information on small trees that we did not attempt to remove wood samples from.  These trees were tallied in each plot by species and diameter class (measured at breast height, 1.4 m) in 5.6-m radius plots.  Diameter classes:  2.5 (0-5 cm), 7.5 (5-10 cm), 15 (10-20 cm). 

https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/supplemental/usbee002_scarred_tree_info.csv provides information on fire-scarred trees, including ones we also sampled for recruitment date.

https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/supplemental/usbee002_undatable_trees.csv provides information on trees from which it did not appear that we could obtain intact wood samples.

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://www.fhaes.org for more information.