Basic Volumetric Analysis
Volumetric analysis attempts to determine the calculated volume of a pile, area, mining shaft, etc. One can find this by querying out a certain area or polygon, then drawing a base-line so to say that has a minimum floor. All captured height data determined is measured against that initial floor’s values and one can determine total volume above the plane.
By drawing a polygon around a particular pile and using the extract by mask tool I was able to evaluate the elevations of the pile and then, inserted a volume table beneath the map with total height above 293m msl.
A table was made for each different dsm captured at differing dates with coordinate system pixel size (gsd) and minimum and maximum elevation values. Then each was reclassed to smaller sizes (10cm and 100cm).
Below are a series of maps with three respective dates and each map with a given date has been resampled to both 10cm and 100cm. Each dsm model has a hill shade with transparency and elevation features have been found as well.
The maps all have volumetric data for their corresponding dates and resampling sizes.
Volumetric data helps one
understands the area they are working with and can be visually depicted and
calculated with ArcGIS Surface volume tool given that all projections,
elevation averages, and units are given and consistent.
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