This week I worked on the voxel assignment operator for my module. I also explored the possibility of using a priori assigned anisotropy with a kernal operator to populate the voxel space.One concern that I am not sure how to manage yet are horizon instances that are only identified in a single sample. Next week I will continue working on these same areas.
Tim Bailey
Tim Bailey
How about making the assumption that horizons sampled by a single point are horizontal–or perhaps some other plane with dip and strike specified by the user like in r.plane.
Michael
C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Arizona State University
Tempe, AZ 85287-2402
USA
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On Jul 5, 2013, at 8:57 AM, Tim Bailey <timibly@gmail.com>
wrote:
This week I worked on the voxel assignment operator for my module. I also explored the possibility of using a priori assigned anisotropy with a kernal operator to populate the voxel space.One concern that I am not sure how to manage yet are horizon instances that are only identified in a single sample. Next week I will continue working on these same areas.
Tim Bailey
Tim Bailey
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On 07/05/2013 06:34 PM, Michael Barton wrote:
How about making the assumption that horizons sampled by a single point
are horizontal--or perhaps some other plane with dip and strike
specified by the user like in r.plane.
I suppose this is a rather philosophical question.
At least I am not aware of any established method
for answering the question whether a single piece
of evidence should be taken into account or discarded.
I would tend towards the latter (discard). My argument
would be that if a soil horizon occurs only in a
single sample, then either:
(a) the sampling strategy was flawed (perhaps the
spacing between sampling points was too wide) or
(b) there was a problem with interpreting the samples.
If you decide to discard singular evidence, then
your module should display an appropriate warning.
Best,
Ben
Michael
______________________________
C. Michael Barton
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Arizona State University
Tempe, AZ 85287-2402
USAvoice:480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)
fax: 480-965-7671(SHESC), 480-727-0709 (CSDC)
www: http://csdc.asu.edu, http://shesc.asu.edu
http://www.public.asu.edu/~cmbartonOn Jul 5, 2013, at 8:57 AM, Tim Bailey <timibly@gmail.com
<mailto:timibly@gmail.com>>
wrote:This week I worked on the voxel assignment operator for my module. I
also explored the possibility of using a priori assigned anisotropy
with a kernal operator to populate the voxel space.One concern that I
am not sure how to manage yet are horizon instances that are only
identified in a single sample. Next week I will continue working on
these same areas.Tim Bailey
Tim Bailey
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{*} GIS Developer
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Hi Tim,
2013/7/5 Tim Bailey <timibly@gmail.com>:
This week I worked on the voxel assignment operator for my module. I also
explored the possibility of using a priori assigned anisotropy with a kernal
operator to populate the voxel space.One concern that I am not sure how to
manage yet are horizon instances that are only identified in a single
sample. Next week I will continue working on these same areas.
it would be nice to collect your ideas and report progress also on a
project wiki page [1], see other projects [2].
Thanks, Martin
[1] http://grasswiki.osgeo.org/wiki/GRASS_GSoC_2013_An_Implementation_of_Horizon_Based_Stratigraphy_for_GRASS
[2] http://grasswiki.osgeo.org/wiki/GRASS_SoC_Ideas_2013#Accepted_Ideas
+1 on the wiki documentation.
On Tue, Jul 9, 2013 at 10:14 PM, Martin Landa <landa.martin@gmail.com> wrote:
Hi Tim,
2013/7/5 Tim Bailey <timibly@gmail.com>:
This week I worked on the voxel assignment operator for my module. I also
explored the possibility of using a priori assigned anisotropy with a kernal
operator to populate the voxel space.One concern that I am not sure how to
manage yet are horizon instances that are only identified in a single
sample. Next week I will continue working on these same areas.it would be nice to collect your ideas and report progress also on a
project wiki page [1], see other projects [2].Thanks, Martin
[1] http://grasswiki.osgeo.org/wiki/GRASS_GSoC_2013_An_Implementation_of_Horizon_Based_Stratigraphy_for_GRASS
[2] http://grasswiki.osgeo.org/wiki/GRASS_SoC_Ideas_2013#Accepted_Ideas
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