Terrain Analysis

Observation Types

Submitted by dylan on Sat, 2008-05-17 00:35.
Observation Types

Red symbols denote the location of 10 meter USGS data, blue symbols are RTK observations.

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SJER RU 5-1 Estimated Soil Series Map

Submitted by dylan on Wed, 2008-05-14 19:20.
SJER RU 5-1 Estimated Soil Series Map

Preliminary estimation of three landscape units and associated soil series.

Topographic Survey of Select Landscapes

Submitted by dylan on Tue, 2008-05-13 05:12.
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Preliminary 1 meter DEM in RU 5-1

Submitted by dylan on Tue, 2008-05-13 05:11.
Preliminary 1 meter DEM in RU 5-1

This preliminary DEM was constructed using 547 RTK observations (approx 3cm vertical precision) and 2500 points from a conventional USGS 10 meter DEM. Orange symbols are piezometer locations.

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Draft SFREC elevation model

Submitted by dylan on Wed, 2008-04-16 00:34.
Draft SFREC elevation model

viewed from the north-west

Regions with low point coverage

Submitted by dylan on Wed, 2008-04-09 23:21.
Regions with low point coverage

in yellow

Vertical Precision

Submitted by dylan on Wed, 2008-04-09 23:19.
Vertical Precision

Yellow points represent vertical precisions less than 10cm, red points are for precisions greater than 10cm.

Selection by Minimizing MAE (mean absolute error)

Submitted by dylan on Wed, 2008-04-09 23:02.
  • 5 meter interval sampling of contours
  • 5 meter interval sampling of terrain skeleton
  • [5 10 15 20 25 30 40 50 60] meter thinning (snapping) radius
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Regions of like SD(elevation)

Submitted by dylan on Wed, 2008-04-09 22:59.

 
Compute SD of elevation on 50x50 meter grid

# prepage SD map
r.neighbors in=e10 out=e10_sd method=stddev size=5 --o

 

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San Joaquin Experimental Range (SJER)

Submitted by dylan on Mon, 2008-04-07 16:08.

 
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