Raster Dataset
Tags
HJ Andrews Experimental Forest, Landscape Ecology, Oregon, geology, Blue River Watershed, Lidar, Willamette Basin, Forest Metrics, Live Biomass
Live biomass is a forest metric derived from Lidar point clouds. This metric provides maps and images of aboveground live biomass for the HJ Andrews Experimental Forest. Live biomass can give a sense of how much vegetation exists on the landscape.
The biomass raster was developed by equations in (Seidl, et al 2012). Lidar variables used to create the raster include 95th percentile height, bare earth elevation, and the standard deviation of height in a 35m moving window.
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 | -122.277460 | East | -122.096288 |
North | 44.295006 | South | 44.196772 |
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
CI = confidence interval. 1. The model assumes a linear combination of parameters with the cube root of aboveground live biomass (Mg) at 25 m2 cells as response variable. Aboveground live carbon was derived by assuming a C content of 50%. 2. Derived from 100,000 iterations of a nonparametric boostrap in which groups of spatially dependent observations were resampled with replacement. 3. 95th percentile Lidar return height. 4. Variance in H95 across a 35 m 9 35 m area centered on the focal 5 m cell.
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Biomass in Mg per Ha (Megagrams per hectare )
Seild, et al 2012
Internal feature number.
Esri
Biomass in Mg per Ha (Megagrams per hectare )
Seidl, et al 2012
Number of pixels in value
GRID