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How can I verify time-invariance for spatial gradients of air pollution?

I have data from a network of NO2 passive samplers. Measurement are repeated in the same positions in different years. I need to verify if spatial gradients in air pollution remain constant in time, ...
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1answer
78 views

Wind turbine placement optimization and loss on surrounding house value

I am doing a geostatistical placement optimization study on where would be the optimal placement of a wind turbine in a Danish region. One of the variables taken into account is the cost on the value ...
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1answer
38 views

How to show GeoStatistical Analyst Layer in web map using ArcGIS Javascript API?

I have created a "GeoStatistical Analyst Layer" with "Diffusion Interpolation with Barriers" tool and then I published it on the ArcGIS for Server. How can I show this layer in my web map application ...
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1answer
38 views

mathematics of spatial diffusion models

There are different types of spatial diffusion such as contagious model, migration model, etc. What are the good books to learn about the mathematics behind these spatial diffusion models?
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46 views

Is there any statistical method to proof if the method is suitable or not [closed]

I have recently done a phenological study using threshold method from MODIS NDVI images. But I'm suffered that I don't have any situ observation (ground truth) data to do validation. Is there any ...
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28 views

Is there a way to find the closest anticorrelated polygon or automate what is learned in the semivariogram?

I am trying to do spatial autocorrelation of sorts based on a layer of polygons of mean rainfall data. I want to see how rainfall deviates from a certain point on the landscape. Essentially, I want to ...
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0answers
58 views

Set a theoretical (not empirical) variogram in ArcGIS Geostatistical Analyst

I'm trying to do some Unconditional Gaussian Simulations using the Gaussian Geostatistical Simulation tool (see here). However, I don't have any data that I am doing this from - just a theoretical ...
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1answer
63 views

Examining the covariance between biodiversity and other variables

I have som problems with an analysis and would be very grateful for any answers or suggestion. The background is: - I want to examine the covariance between ecosystem services in an area. I donĀ“t ...
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1answer
112 views

ARCGIS10: updatelayer results in error - LayerObject: Get attribute renderer does not exist

I'm quite new in using python in Arcgis 10. I wanted to use the symbology of a geostatistical layer in the TOC in another geostatistical layer in the TOC. Therefore, one should use ...
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0answers
161 views

Interpolation with barriers

I need to interpolate water quality data in a rather small area with peninsulas, islands and developed coastline that will act as barriers between my testing/sampling points. I understand I have to ...
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73 views

How to spatialy interpolate forest tree height, basal area data for certain species

I have ecological sample data collected from 5 locations within a 133345678.5678 sq meter area. The data is stored in a point shape file. I have joined tabular data with the point layer by duplicating ...
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1answer
165 views

IDW: Default Maximum Distance and Coincident Points

The ArcGIS Help file says the Default Maximum Distance, when using the Variable Search Radius in IDW, is the extent's diagonal, however, no value is automatically filled in the corresponding box after ...
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108 views

Which geostatistical tools to use to determine surface changes over 40 years?

I have a data from the Weather station with SWEmax (snow water equivalent) collected over 40 years. I need to interpolate the data over my river's watershed and then, somehow, determine the ...
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1answer
382 views

Statistical analyses for survey against raster?

I am somewhat of a newbie to geostatistical analyses, but pretty familiar with GIS and remote sensing packages. I was wondering if anyone had suggestions on appropriate geostatistical analyses for a ...
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1answer
212 views

Regression with Nominal and Categorical Data

I am doing a project looking at the prevalence of a weeds in an area. As an example, I have the following layers: Weeds Layer (polygons) {categorical data} Each polygon represents a point or polygon ...
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1answer
498 views

How to convert Geostatistical analyst (GA) file to Raster FAST?

I have been trying to convert a number of Geostatistical analyst files that i were created using Geostatistical wizard in ArcGIS 10. I want to save these files as Raster and use the File Am i ...