Questions tagged [kriging]

A group of geostatistical techniques to interpolate the value of a random field at an unobserved location from observations of its value at nearby locations.

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Does Kriging change known values

Does the process of Kriging routinely change known values to accommodate other nearby known values? You can see I know little to nothing of this Kriging stuff. My concern is that a known and accurate ...
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Kriging with gstat and Gaussian model produces bad outputs

I am trying to produce kriging models from elevations points using the gstat package. I can fit models to the empirical variogram using exponential, spherical, and Gaussian curves. However, despite ...
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PyKrige interpolation results very different to ArcGIS Pro

I had been using ArcGIS Pro's Kriging tool to apply Ordinary Kriging to my dataset. This produced the below results, which were exactly as I wanted (I have also included a screenshot of the parameters ...
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1 answer
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Remove X and Y axis from PyKrige result

I am trying to use the PyKrige module in Python to interpolate via Ordinary Kriging my XYZ dataset. I have the below script, code taken from https://colab.research.google.com/drive/1mZDVJ-...
1 vote
1 answer
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PyKrige constantly running into memory errors even with small dataset

I have an xyz file in which I'd like to apply the interpolation method of kriging to via python. In order to do this, I have come across the module PyKrige and duplicated this example perfectly on my ...
-1 votes
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Seeking Kriging Interpolation tool for Python

I have been using ESRI ArcGIS Pro's 3D Analyst Geoprocessing Tool Kriging to interpolate my data. More specifically, I have been using the Ordinary Kriging with a cell size of 0.5 on 36935 xyz points ...
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1 answer
48 views

Using PyKrige for ordinary kriging on an XYZ file

I've previously used ArcGIS for Ordinary Kriging, but I now need a Python alternative. I found the PyKrige module which i decided to give a try, but I am bit confused by it. So far, I have read my XYZ ...
0 votes
1 answer
454 views

Rule of thumb for complexity of 3d Kriging (with pykrige)

I've been using pykrige for some data interpolation. It's great and works well in 2d. I recently tried the 3D version though, and it takes forever to run (> a day before I killed it), just for ...
3 votes
1 answer
556 views

Empirical variogram plot in QGIS

I am trying to do kriging on mortality rates using QGIS (I have version 3.0 but I downloaded the 2.18.20 to be able to follow the web documentation and most of the answers here). From what I have ...
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1 answer
40 views

Kriging Interpolation in ArcMap

I want to interpolate one field of the shapefile named 'Interpolation' by Kriging method. But want to change the processing environment to the extent of another file namely 'Polygon'. I tried '...
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Change Kriging Output Scales using ArcGIS Pro

[![enter image description here][1]][1] I have made a series of Kriging maps based on different time periods, but I want them all to have the same scale. For example, all should be 33-69.5. Is this ...
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Changing value while converting Geostattistical layer to raster using Geostatistical analyst

I using geostatistical analyst for interpolation. when geostatistical layer create and I want to export it to the raster the range of min-max values changes. how could I export GA layer to raster ...
3 votes
2 answers
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Measuring error of Spatial Analyst interpolation such as spline, nearest neighbor and kriging?

I am planing to use interpolation method using spatial analyst tool and I found several methods like spline NN and kriging. I know I can do interpolation using geostatistical analyst but some ...
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IDW vs. ordinary Kriging, spatial clusters

Using ArcMap, I have a dataset containing points with coordinates and value (cost of infrastructure). There is no even distribution, the points are mostly clustered around larger cities but with some ...
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1 answer
258 views

R function krige.cv() returns NAs

I recently completed a geostatistics course, and now trying to apply my knewly acquired knowledge to a real case. I have a dataset with 2 122 groundwater level measurement points. I would like to ...
2 votes
1 answer
1k views

R kriging raster returns NA for some prediction points?

I am trying to interpolate a raster layer of chlorophyll-a data using kriging (gstat::krige) in R, however the resulting interpolation is showing NA values in a peculiar straight line through the ...
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1 answer
315 views

0........0.kriging error messages, grid file problem ? (automap, gstat)

I am trying to conduct kriging of variable called percent in South Africa. head(LL12) Location Longitude Latitude percent 1 L1 16.48476 -28.60737 1.0000000 2 L3 16....
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Number of Pairs in lag class of variogram using ArcGIS Geoststistical Analyst [duplicate]

My question has already been asked (but remains unanswered) as ArcGIS Geostatistical Analyst variogram lag pairs I'm looking to find out how many Point pairs are in a lag class in the semivariogram ...
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1 answer
55 views

Using a dynamic formula with parrallel kringing in R

I am trying to achieve parallel Kriging in R on several variables using a loop. Here is a reproducible example using data meuse and a code for parallel kriging that I found here. In the code below, ...
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1 answer
497 views

Kriging method vs. IDW in soil moisture interpolation

I have XY coordinates and soil moisture values for a grid of 10m and I used add XY data to import my excel data to ArcMap 10.5. I applied both IDW and kriging methods for interpolation. The results ...
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Kriging output is blank

I have used kriging with default settings where I have five points with XY coordinates, ID and concentration. The concentration is ranging from 12 to 161900. The output I get from this is just a ...
8 votes
2 answers
2k views

Interpolating Maps - Statistical Learning Techniques vs Spatial Statistics Techniques

I have recently begun experimenting with the interpolation of variables over a whole country. I have good sized training set where I have several dependent variables (continuous and categorical) ...
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1 answer
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Ordinary Kriging: "Warning message: In fit.variogram(data.var, vgm("Mat")) : No convergence after 200 iterations: try different initial values?"

I am trying to fit a variogram for kriging using the sp and gstat packages in r, but when I fit the variogram using a mattern fit, I get this warning message: Warning message: In fit.variogram(data....
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1 answer
47 views

Error message with Krige function: Error in as.character.default(X[[i]], ...) : no method for coercing this S4 class to a vector

I am trying to run the Krige function but I keep receiving NA values for var1.pred and var1.var. After using the warning() command, it says: Error in as.character.default(X[[i]], ...) : no method for ...
1 vote
0 answers
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Calculating volume of IDW raster below Height of Plane, but it is failing

I am using ArcMap. I am trying to calculate the volume of water using IDW Tool. When I reach a point to calculate, the statistics below height of plane cannot run, giving me 0.00, What could be the ...
0 votes
1 answer
143 views

Using ArcGIS geostatistical wizard for Kriging in ArcPy

In ArcMap , I have many interpolations to create and need a way of doing batch processing. I would like to use Universal Cokriging for interpolation. I have point features in a regular 0.25 arc deg ...
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432 views

Cokriging Predict Function "Error in h(simpleError(msg, call))"

I tried to do CoKriging using gstat library in R. it works perfectly until the prediction function CK <- predict(g, Grid) It gave me this error: Error in h(simpleError(msg, call)) : error in ...
1 vote
1 answer
139 views

R - Why are my kriged interpolation values so low when using ordinary kriging (gstat)?

I am using a synthetic dataset that I generated for the purposes of fulfilling an assignment. I am attempting to use ordinary kriging to interpolate point data across an entire field, but my ...
1 vote
1 answer
82 views

Kriging with gstat package in R produces empty interpolation points

I have kriged a dataset with the gstat package in R, but it has produced an empty variable as a result. I have 1,167 measurement points within a field, and I am trying to interpolate them across 3,464 ...
1 vote
1 answer
192 views

Geographically weighted area-to-area Regression CoKriging for raster downscaling in R?

this will be probable a series of questions, so in this one I will try to set the big picture. I want to perform geographically weighted area-to-area regression Cokriging (GWATARCoK) to downscale 1 ...
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76 views

QGIS Ordinary Kringing Python error

I am new to using the Smart-Map plugin. I added my data (which has one valid outlier) and did the ordinary Kriging interpolation. Just before it reaches 100% I get the following error message: 2022-03-...
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499 views

Type error when kriging with python: TypeError - Input z must be at least a (2, 2) shaped array, but has shape (1, 1)

I am new to kriging with python, and I have a csv file that I am trying to interpolate and plot. However, I am getting the following error: TypeError - Input z must be at least a (2, 2) shaped array, ...
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55 views

ArcGIS kriging unable to estimate semivariogram when processing extent is set

I'm trying to use ArcGIS kriging tool to interpolate some points to form a raster. The point covers approximately a polygon study are but not exactly the extent of the area. I set the processing ...
0 votes
1 answer
76 views

Adding kriging results back to a GWR model in R?

How can I add the kriging results of a downscaling process back to a GWR model? Basically, I have 2 raster, 1 at 400m (let's call it x1) resolution and 1 at 100m resolution. I upscaled the latter to ...
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Appropriate kriging variogram model and parameter values in order not to loose information?

I have tried to apply kriging in order to interpolate the measurements to a regular grid. The function that generates the grid is the following: from pykrige.ok import OrdinaryKriging def ...
8 votes
3 answers
2k views

Backtransformation of kriging predictions and variances

I'm not sure how to back-transform log-normal kriged results. This example using the "meuse" data shows how to make variogram and use it to get kriging predictions (and variances) using the popular '...
0 votes
1 answer
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Residual bubble plot of krige.cv function dataframe

I want to plot a bubble plot of residuals from the krige.cv function with the bubble function. However I get an error: Error in as(obj, "SpatialPointsDataFrame") : no method or default for ...
0 votes
1 answer
135 views

Export kriging plot as GeoTIFF

I have performed kriging and plotted it with ggplot, now I want to load the plot in QGIS. For that to work I need a GeoTIFF file of my plot. How do I convert my plot into a GeoTIFF file? EDIT: added ...
5 votes
0 answers
534 views

Dealing with duplicate locations when kriging by replacing them with single location taking mean of duplicates using R [duplicate]

I understand that the existence of duplicate points (locations) when Kriging will result in a singular covariance matrix. The only way I've encountered people dealing with this is to keep the first of ...
1 vote
0 answers
2k views

Validation of Regression Kriging [closed]

I am interested in exploring the idea of generating a predictive model for a target variable in a spatial context. I would then like to correct the residuals of this model using kriging, i.e. in a ...
27 votes
2 answers
40k views

Choosing IDW vs Kriging Interpolation for DEM creation?

I'm trying to create a DEM using point data spaced very regularly about 10m apart. The area I am interpolating is an educational facility with many flat parking lots and football fields but still has ...
1 vote
1 answer
642 views

Interpolating DEM using Kriging in R [closed]

I have several DEMs as geotiff files which I load into R using raster::raster. Now some of these DEMs contain patches of missing values, represented by NA. I would like to interpolate these missing ...
3 votes
1 answer
710 views

Ordinary kriging problem after exporting to raster (Geostatistical Wizard)

I'm not sure what I'm making wrong. I used the Geostatistical Wizard to perform an ordinary kriging. The resulting Geostatistical Layer looks like this: After using the GA Layer To Grid Tool by right ...
1 vote
0 answers
125 views

Ordinary kriging in QGIS with geodetic coordinates

I am using QGIS 3.16.9 Hannover. I want to create a surface (with kriging) from a list of points whose SRC is WGS84, so I am working with geodetic coordinates. They are in decimal degrees covering a ...
1 vote
0 answers
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Kriging observations using additional knowledge from geophysical model

Here is a simplified explanation of the problem I am trying to solve : I have (1) a 100x100 grid with air pollutant concentrations in a city obtained from an air quality geophysical model, and (2) a ...
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What do the kriging-parameters in SAGA QGIS mean?

I'm used to standard kriging-methods in an R environment. I'd like to know what each parameters in the kriging-tool from SAGA in QGIS mean. Parameters like: type of qualityindex Blockkrigen/Block ...
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Stein's parameterization matern model kriging SAGA in QGIS

I performed autovariogram in R. It gave me the output seen below. It suggest using a matern model-Steins parameterization (indicated by the "Ste"). I would like to try the kriging tools by ...
6 votes
2 answers
4k views

Three-dimensional interpolation of temperature profiles using gstat in R?

I'm working on a problem in which I'd like to interpolate a set of oceanographic temperature profiles over a three-dimensional matrix of unsampled x, y, & z locations. The data to interpolate is ...
2 votes
1 answer
58 views

Using ArcPy to iterate feature classes for kriging

I have 12 feature classes and they are named from net_0 to net_11 but the order of feature classes In Arc catalog is,List_wells = [net_0,net_1,net_10,net_11,net_2,net_3,net_4,net_5,..net_9]. I used ...
1 vote
1 answer
122 views

Fitting a variogram for Kriging in R

I want to fit a variogram of my data for kriging. Here is what I have so far: library(sp) library(rgdal) require(gstat) setwd("C:/Users/49151/Desktop") #import data data <- read.csv(&...

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