A methodology or set of analytical procedures used to derive information about spatial relationships between geographic phenomena.

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79 views

Finding a Conceptual Site Modeling Software

I've been asked by my company to generate a conceptual site model for a project and I have no clue where to start. The purpose is to show groundwater flow through a few layers of rock either in 2D or ...
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2answers
96 views

How to bring 3D object into 3D application?

I'm doing some GIS as part of my college course and have just started to do some 3D modelling, I'm really a GIS novice, The module is short (only 5 lectures) My lecturer has said that it is possible ...
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1answer
136 views

Is there ArcGIS (ideally) solution for spill modeling from particular pour point on crude oil pipeline?

wondering if anyone knows of a solution for spill modeling from a particular pour point on a crude oil pipeline? I currently have all my data within ArcGIS (DEM, major/moderate/minor watercourses, ...
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0answers
158 views

Variogram model fit compatability among geoR, gstat, and nlme packages in R

I'm trying to specify the covariance structure parameters in a linear mixed model (using the correlation structure facilities in nlme). The parameters are estimated from a gstat or geoR variogram ...
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0answers
155 views

Modelling Zombie Outbreak

I know that there are many scripts (mostly in matlab) out there that address the spread of disease/zombie infection, but does anyone know of ways this has been developed/implemented in ArcGIS? ...
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0answers
212 views

Incorporating known GPS/INS data to automatically produce geo-registered 3D models

I am trying to reconstruct a 3D building model from 2D video frames using an open-source Structure-From-Motion(SFM) software (Bundler). The final reconstructed 3D model will be in Cartesian ...
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0answers
16 views

Data occurrence in openModeller?

I am having problems adding occurrence data to openModeller and I think that the format might be the problem. I am using Excel with the fields: #ID Taxon Name Longitude Latitude. I saved the result ...
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0answers
28 views

Creating model that simulates water flowing down crack, then splitting at 'Y' joint?

Maybe this is a simple problem, but I've been given a task of simulating how water flows in one line, along a crack, and then hits a 'Y' junction, where half the water flows in each of the split ...
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156 views

Using SWAT model with QGIS

I am trying to use SWAT (Soil and Water Assessment Tool) for watershed management activities. It is a set of commandline tools and needs a complex set of input data some of which can be generated from ...
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17 views

Sea flow model and ArcGIS particle tracking tool

I find myself in the need to 'predict' the path and, more importantly, the final arrival point of something which is left on the sea surface, on the basis of wind direction and wind speed (leaving ...
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0answers
29 views

In QGIS Process Modeller, is it possible to automatically run a function on several layers without listing all combinations?

Trying to develop a Model which includes finding any intersections between layers and then merging them all into a single layer. I have 12 layers in total, it's not really efficient to list all the ...
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199 views

AHP Workflow in GIS

We are to apply AHP method to determine waste disposal areas using GIS, the AHP methodology supposes, from what I gathered, alternatives known before hand (as explained in this very straightforward ...
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35 views

Agent Analyst - How to reduce memory use during many, many loops?

I am currently using the Agent Analyst adaptation of Repast within the ArcGIS framework. The model I've built is capable of doing what I'd like (ie. randomly generating biologically-sensible ...
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277 views

Which is the best interpolation method for collected ground water sample?

I have collected ground water quality samples from 50 locations in my study area. Now I have to interpolate data in ArcGIS. Which is a suitable method for ground water interpolation and why?