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Using convex hull for interpolation of individual plots or lump plots together in ArcMap? [on hold]

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This question is inspired by Using kriging to extrapolate values outside of sampling polygon in ArcMap?

I'm working on a project trying to understand the lasting effects of historic scientific activities on delicate soil communities. Essentially, the hypothesis is that there will be fewer soil organisms the closer one gets to the center of where human activity took place (due to trampling and other disturbances).

I've got soil data that were collected at known locations of historic camps where researchers lived and worked in the field. After locating the footprint of where each structure in the camp used to be (e.g. hut, shed, etc.), a sample was taken at the center of the footprint and at three points along three different transects radiating out from the plot center.

My question is: Should I use the convex hull of each individual plot to interpolate values, or can I do a convex hull and interpolation of the entire camp (based on all sample points). I've included simple visual examples of these two options below. The scale is approximately 150m from one end of the camp to the other.

A camp with three plots and their respective convex hulls

Plot-scale samples and interpolation (IDW) (only one plot shown)

Camp-scale samples and convex hull

Camp-scale samples and test interpolation (IDW)

Note: the interpolated surfaces are not scaled to each other in these visuals.

arcgis-desktop interpolation kriging geostatistical-analyst convex-hull

share|improve this question

edited 20 mins ago

cms

asked 30 mins ago

cmscms

212

put on hold as too broad by PolyGeo♦ 22 mins ago

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  As per the Tour there should be only one question asked per question.
  
  – PolyGeo♦
  22 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for the help--I've edited the post to include just one question.
  
  – cms
  13 mins ago
  

  
  
  
  

add a comment | 

0

This question is inspired by Using kriging to extrapolate values outside of sampling polygon in ArcMap?

I'm working on a project trying to understand the lasting effects of historic scientific activities on delicate soil communities. Essentially, the hypothesis is that there will be fewer soil organisms the closer one gets to the center of where human activity took place (due to trampling and other disturbances).

I've got soil data that were collected at known locations of historic camps where researchers lived and worked in the field. After locating the footprint of where each structure in the camp used to be (e.g. hut, shed, etc.), a sample was taken at the center of the footprint and at three points along three different transects radiating out from the plot center.

My question is: Should I use the convex hull of each individual plot to interpolate values, or can I do a convex hull and interpolation of the entire camp (based on all sample points). I've included simple visual examples of these two options below. The scale is approximately 150m from one end of the camp to the other.

A camp with three plots and their respective convex hulls

Plot-scale samples and interpolation (IDW) (only one plot shown)

Camp-scale samples and convex hull

Camp-scale samples and test interpolation (IDW)

Note: the interpolated surfaces are not scaled to each other in these visuals.

arcgis-desktop interpolation kriging geostatistical-analyst convex-hull

share|improve this question

edited 20 mins ago

cms

asked 30 mins ago

cmscms

212

put on hold as too broad by PolyGeo♦ 22 mins ago

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  As per the Tour there should be only one question asked per question.
  
  – PolyGeo♦
  22 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for the help--I've edited the post to include just one question.
  
  – cms
  13 mins ago
  

  
  
  
  

add a comment | 

This question is inspired by Using kriging to extrapolate values outside of sampling polygon in ArcMap?

I'm working on a project trying to understand the lasting effects of historic scientific activities on delicate soil communities. Essentially, the hypothesis is that there will be fewer soil organisms the closer one gets to the center of where human activity took place (due to trampling and other disturbances).

I've got soil data that were collected at known locations of historic camps where researchers lived and worked in the field. After locating the footprint of where each structure in the camp used to be (e.g. hut, shed, etc.), a sample was taken at the center of the footprint and at three points along three different transects radiating out from the plot center.

My question is: Should I use the convex hull of each individual plot to interpolate values, or can I do a convex hull and interpolation of the entire camp (based on all sample points). I've included simple visual examples of these two options below. The scale is approximately 150m from one end of the camp to the other.

A camp with three plots and their respective convex hulls

Plot-scale samples and interpolation (IDW) (only one plot shown)

Camp-scale samples and convex hull

Camp-scale samples and test interpolation (IDW)

Note: the interpolated surfaces are not scaled to each other in these visuals.

arcgis-desktop interpolation kriging geostatistical-analyst convex-hull

share|improve this question

edited 20 mins ago

cms

asked 30 mins ago

cmscms

212

share|improve this question

edited 20 mins ago

cms

asked 30 mins ago

cmscms

212

share|improve this question

edited 20 mins ago

cms

asked 30 mins ago

cmscms

212

asked 30 mins ago

cmscms

212

asked 30 mins ago

cmscms

212