Slough - USSLO001
Heyerdahl, E. K.; Falk,D,A..; Loehman, R.A.

Dating method: crossdated

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

Reference: 
Merschel, A.G., Heyerdahl, E.K., Spies, T.A., and Loehman, R.A.  In press.  Historical fire regimes varied with both landscape structure and forest type, in central Oregon, USA.  Landscape Ecology

NOAA/IMPD web landing page for this fire history site is available at:
https://ncdc.noaa.gov/paleo/study/23655

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-23655.xml and https://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/json/noaa-fire-23655.json

FHX filename: https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/usslo001.fhx

IMPD code: USSLO001

Name of site: Slough

Site code: SLO

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

Latitude: 43.933645 (WGS84)

Longitude: -121.472754 (WGS84)

Mean elevation: 1435 (meters)

Country: United States

State: Oregon

Region: central Oregon

First year: 1539 AD

Last year: 1884 AD

Species name: Pinus ponderosa [PIPO]

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 study to infer the climate drivers of past regional fire years in central Oregon.  

There is one file of supporting data for this site (https://www1.ncdc.noaa.gov/pub/data/paleo/firehistory/firescar/northamerica/supplemental/usslo001_scarred_tree_info.csv) that contains information on the sampled trees (location, species, etc.).

Trees are identified in all files with a three-letter site code (SLO) followed by a two-letter tree number.  When we removed more than one sample from a tree, the wood sample includes an additional letter identifying the sample (A, B, C, etc.).

-999 indicates no data.

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

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.