Shapefile
Tags
vegetation, Blue River
Watershed, fire, Oregon, fire history, Willamette Basin, HJ Andrews Experimental
Forest
To document the fire history of the HJ Andrews and provide digital data for further analysis
Fire History - H J Andrews and Vicinity (1482 - 1952) individual fires. Fire history studies by Peter Teensma provide the base information for this layer. Individual fire episodes were manuscripted onto HJA base maps and digitized. Fire episodes were maintained in thirty one separate polygon coverages, until Arc/Info Version 7 provided the region feature class to accomodate overlapping polygons. REGIONPOLY was used to create regions for each fire episode and then the 31 episode regions were combined using UNION.
The field "AGE" = 0 means that a fire occured in the polygon. AGE = 1 means that fire was absent
There are no credits for this item.
See data access policy at www.fsl.orst.edu/lter (especialy the data use policy)
Extent
West | -122.266082 | East | -122.055962 |
North | 44.307738 | South | 44.194632 |
Maximum (zoomed in) | 1:5,000 |
Minimum (zoomed out) | 1:500,000 |
ground condition
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.
Available on-line
See data access policy at www.fsl.orst.edu/lter (especialy the data use policy)
ground condition
Obtain information off of WWW site, call contact person for special requests.
fire history polygon attribute table
FSL documentation
Internal feature number.
ESRI
Feature geometry.
ESRI
Area of feature in internal units squared.
ESRI
Perimeter of feature in internal units.
ESRI
internally generated number, generated during database construction as a coverage data type
FSL documentation
unique id number for each polygon
FSL documentation
presence of fire for episode
FSL documentation
year of the fire episode
fsl documentation
Fire History - H J Andrews and Vicinity (1482 - 1952). Fire history studies by Peter Teensma provide the base information for this layer. Individual fire episodes were manuscripted onto HJA base maps and digitized.
To document the fire history of the HJ Andrews and provide digital data for further analysis
ground condition
Available on-line
See data access policy at www.fsl.orst.edu/lter (especialy the data use policy)
Data quality is good, with the provisio that any reconstruction of fire
history from tree ring data entails a fair bit on boundary uncertainty.
Fire history studies by Peter Teensma provide the base information
for this layer. Individual fire episodes were manuscripted
onto HJA base maps and digitized. Fire episodes were maintained
in thirty one separate polygon coverages, until Arc/Info Version 7
provided the region feature class to accomodate overlapping
polygons. REGIONPOLY was used to create regions for each fire
episode and then the 31 episode regions were combined using UNION.
Dataset copied.
Dataset copied.
009
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.
Obtain information off of WWW site, call contact person for special requests.