Raster Dataset
Tags
HJ Andrews Experimental
Forest, Landscape Ecology, Oregon, geology, Blue River Watershed, Lidar, Willamette Basin,
Forest Metrics, Canopy Closure, Canopy Point Density
Canopy closure is a forest metric derived from Lidar point clouds. This metric measures the canopy closure of a given horizontal cell above a given vertical threshold (height break). Canopy closure can inform many landscape models and provide insight on how much light will reach the forest floor.
The canopy closure is derived from the raw Lidar point clouds using the FUSION software. The horizontal resolution is 5 meters, the height threshold is 0 meters, and the upper limit is 2 meters. All Lidar returns were used so that sub canopy vegetation would have an effect on the result. Canopy point density is defined as the proportion of returns between the height threshold and the upper limit. All points above the upper limit are ignored.
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.
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Extent
West | -122.277473 | East | -122.099491 |
North | 44.283042 | South | 44.196760 |
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.
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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.
raster dataset
FUSION software documentation
canopy point density in percent
FUSION software documentation