Shapefile
Tags
HJ Andrews Experimental
Forest, Landscape Ecology, Oregon, geology, Blue River Watershed, Lidar, Willamette Basin,
Forest Metrics, Stem Map, Canopy Model
A stem map is derived from Lidar point clouds. This stem map locates the approximate center of all trees in the HJ Andrews Research Forest greater than 10 meters. In addition to the stem location, a canopy radius is also provided.
This stem maps was created with TreeVaW, a program developed by Dr. Sorin Popescu. A 0.5 meter canopy model was developed from the HJA Lidar point cloud using the FUSION program. Other inputs include window thresholds and a mathmatical relationship between height and crown radius.
Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data from HJ Andrews and the Willamette National Forest (NF) on August 10th and 11th 2008. Total area for this AOI is 17,705 acres. The total area of delivered LiDAR including 100 m buffer is 19,493 acres.
There are no credits for this item.
See access and use constraints information.
Extent
West | -122.277402 | East | -122.099587 |
North | 44.282954 | South | 44.196811 |
Maximum (zoomed in) | 1:5,000 |
Minimum (zoomed out) | 1:50,000 |
The LiDAR was flown on August 10th and 11, 2008 and processed data was delivered on November 14th, 2008.
See access and use constraints information.
no legal constraints on use of this data. We ask that the following Acknowledgements be made: http://andrewsforest.oregonstate.edu/lter/acknowledgements.cfm
Call contact person for instructions and costs.
Obtain information off of WWW site, call contact person for special requests.
ArcGIS 10.1 shapefile
ESRI
Internal feature number.
Esri
Feature geometry.
Esri
Unique ID for each tree stem
TreeVaW
Easting coordinate in featureclasses native coordinate system
TreeVaW
Northing coordinate in featureclasses native coordinate system
TreeVaW
Computed radius of tree crown in meters
TreeVaW
Tree height read from canopy model when TreeVaW decides where to put the point
TreeVaW
Height class for tree stems
Keith Olsen