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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19 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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56 views

Plotting a heatmap of Kriging with coordinate in R

I performed Kriging in R. But I have trouble getting a plot of a colored heatmap showing the resulted interpolated area along with a lon/lat values at the side and on the button. Here is an example, ...
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25 views

Why can't gstat::krige accept duplicate locations when universal kriging?

Let us create a simple simulation worthy of gstat::krige with universal kriging, in the language of linear mixed models, i.e.: Where X is a n x n_vars matrix of n_vars additional variables, betas is ...
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While using smart-map app in QGIS this the error showing

This is the error, showing in my QGIS. How to solve this? An error has occurred while executing Python code: ValueError: range() arg 3 must not be zero Traceback (most recent call last): File &...
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Ordinary kriging is not working in QGIS 3.20 & SAGA-7.2.0

I am using below data for making kriging interpolation. structure(list(Serial = c(1L, 2L, 3L, 4L, 5L, 6L, 7L, 8L, 9L, 10L, 11L, 12L, 13L, 14L, 17L, 18L, 24L, 28L, 30L, 31L, 36L, 37L, 43L, 44L, 46L, ...
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15 views

Creating animation using ArcGIS Pro for Empirical Bayesian Kriging 3D layer

I am using ArcGIS Pro. Is there a way to create an animation showing Depth Ranges and the range of the interpolated data for Empirical Bayesian Kriging 3D layer just like when I play the Slider on the ...
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44 views

Simple kriging in raster

I want to use a Python script for interpolation in 1st image to have the result of 2nd one, this result is from simple kriging saga. I tried the code below but I have two main problems. Need a lot of ...
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kriging parameters over a timeseries dataset

I'm using kriging to interpolate the influence of the spring flood on the water level of lakes and ponds in an extensive delta over multiple years. Given that the data points are the same for each ...
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17 views

Geo data normal assumption - effects

I have a basic question regarding Geo data: is the normal assumption mandatory? Given a dataset I identified outliers and inliers (using Moran local and plot test) so I excluded them from the original ...
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19 views

Using kriging model to predict values from image pixel data

I have 1000 images that look like this: I have the image data 64x128 saved for each image along with each image's compliance value (i.e. 107.33, 207.45, etc.) Is it possible to create a kriging model ...
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39 views

Is it possible to do directional variograms and kriging in SAGA or QGIS?

I'm trying to create directional variograms and do kriging for anisotropic soil data in SAGA or QGIS. Aside from setting the direction to quadrant in SAGA, I can't seem to find a way to do this. Is ...
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NAN's in the kriging predictions in R

I am trying to perform the kriging prediction of my data. I follow a pretty standard process. Firstly, I prep a grid to which the kriging predictions are supposed to be inserted. I prep data that I ...
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Warning message while kriging in R [duplicate]

krig_Gaussian<-krige(formula=(B)~1, locations=Amb_m, newdata=gd_m, model=model_Gaussian.variog_m) [using ordinary kriging] Warning messages: 1: In proj4string(d$data) : CRS object has comment, ...
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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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142 views

QGIS: Spatial extrapolation

I have few sample points with values on (agricultural) field and I want to interpolate and extrapolate values inside the field boundary. Ideally I would like to use Kriging (as it smooths local extrem ...
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Upper and lower bounds from gstat::krige() and gstat::idw()

Is it possible to obtain lower and upper bound values from a kriging estimation using gstat::krige() in the same way it can be obtained from a simple lm() model? The following lm() example comes from ...
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163 views

How to create a grid to do kriging interpolation that correspond to areas in a map having actual observations?

I need to do kriging interpolation but wanted to have the interpolation in areas where I have actual data; not across the whole map. This is my example. Here is the base map (shp file in a .zip file): ...
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100 views

Why krige function return all NA's values for the prediction when trying to interpolate a variable?

I am trying to build a map with kriging interpolation for a variable. When running the krige function the return is all NA values and the kriged map plot only one value. I couldn't find out why and I ...
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How would a Kriging model react to different z values at same point

Say I have a very large dataset of values collected at points over many years. For the sake of an example, we'll pretend it's the altitude at certain lat/longs. If some of those points appeared twice ...
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127 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 ...
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How to do a Correlation of various Raster Data and show the result in a Correlation Matrix

I am doing spatial correlation of soil Data sets. I did various Kiriging Interpolations with the krige function. The output was cut to a target raster to have the same raster size for all Kriging ...
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Extracting time series trend analysis parameters from kriging using ArcGIS (versus R)

A grad student has asked me a question about extracting trend parameters for a time series of data using ordinary kriging ArcGIS tools. I'm not an expert in the spatial statistics options of ArcGIS, ...
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Issues fitting Variogram Model in R

I have taken a shapefile from Open NYC Data and performed the following method. My end goal is to predict Taxi trip_duration at various points across the city of NYC in March at given time segments. I ...
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101 views

How to perform regression Kriging with R studio using gstat?

I'm struggling with regression kriging in R. I want to interpolate the temperature of a watershed under consideration of elevation, but get always the same error when I want to perform the last step, ...
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41 views

Forcing boundary conditions in interpolated/kriged data?

I am using pykrige.ok import OrdinaryKriging to generate a spatially continuous field from sparse point data (see image below). The data (glacier ice thickness) are such that there is a hard boundary (...
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5 views

Is it possible to access fields from a relationship class to use as a kriging value

I have a point dataset of well locations related to a table of calculated production figures by year through a simple relationship class. I am trying to use the production figures as the z value for ...
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24 views

Kriging (or other interpolation) with integral constraints?

I would like to interpolate a continuous variable (from observed point locations) on a surface (gridded) but using an external constraint that the cumulative distribution function of the interpolated ...
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153 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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233 views

Spatial interpolation of climate data using latitude, longitude and elevation in r

I have downloaded E-OBS gridded daily climate data on 0.1-degree grid. For each grid point, I have longitude, latitude, elevation and climate data, i.e. precipitation sum / mean temperature. Now, I ...
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How does Empirical Bayesian Kriging of ArcGIS Pro handle sampling bias?

In ArcGIS Pro, simple kriging approaches allow you to de-cluster your data before applying a normal-score transformation. According to the Esri guideline, normal-score transformations are only ...
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222 views

Interpolating SpatialPointsDataFrame to RasterLayer using autoKrige in R

I have a SpatialPointsDataFrame with elevation data and 51'257 elements. I also have a RasterLayer object of dimensions c(114,210) covering roughly the same area (all the spatial points are within the ...
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160 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 ...
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357 views

Interpolating DEM using Kriging in R

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 ...
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111 views

Spatio-temporal kriging

I have a geospatial dataset of air quality and I want to interpolate the air quality value across time and space for unmeasured location and time instace. I found gstat package in R could do the ...
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Interpolation with barriers in Google Earth Engine [closed]

Does anyone have a code example or helpful information to conduct Empirical Bayesian kriging on Google Earth Engine or of an interpolation with barriers technique in Google Earth Engine?
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Kriging for Soil Nutrient Analysis

I have collected soil analysis results on a gridded basis within fields. These grids were generated on a 35m based upon digitised polygons of the field extents. I have imported my soil analysis ...
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269 views

Removing raster values using a threshold in QGIS and interpolating

I have an imagery (plant cell density) comprising vine rows and grass inter-rows.I'm trying to permanently remove all the values of inter-row grass through setting up a threshold value. The vines ...
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467 views

Interpolation for unevenly spaced data points

I am currently having some trouble finding a good interpolation technique for unevenly distributed spatial data points. Let's give a quick example : I have a 1000 points dataset. As several surveys ...
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758 views

QGIS SAGA "Kriging" tools doesn't work

I try out different methods of point interpolation for a digital terrain model. For this purpose I tried to run the "ordinary kriging tool" from the SAGA Tools with QGIS 2.18 and QGIS 3.2. When I run ...
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237 views

Seeking open source tool for 3D Interpolation

Empirical Bayesian Kriging 3D (EBK3D) looks to be the tool I need within ArcGIS. It requires a GeoStatistical Analyst license. Is there is a similar tool or library that is free and open source? I'...
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208 views

Latin Hypercube Sampling (LHS) in R

I am new to R and would like to generate Latin Hypercube samples (LHS) for three variables within the following limts: 1.25 ≤ x1 ≤ 5 , 1.25 ≤ x2 ≤ 5 7 ≤ x1 ≤ 25 with total 3*10 = 30 samples. What ...
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36 views

Joining z-values (from point file) to map generated by Kriging in ArcGIS Pro

I am using ArcGIS Pro 2.4.0. I am making a fertilizer application map that changes the rates, based on the location of the field. The overall goal of the operation is to create a grid of squares, ...
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1answer
26 views

Defining one numeric variable by defining another string variable (via parameter selection)

I'm creating an ArcGIS tool that will allow users to figure out how much nitrogen that a field needs based on interpolated points (Kriging). I will have the following parameters: #numeric variables ...
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1answer
99 views

Kriging error when writing ArcPy script (ERROR 000622 & ERROR 000628)

I am trying to write an ArcPy script that uses Kriging to interpolate various nutrients in the soil (i.e. nitrogen) using ArcGIS Pro 2.4.0. These nutrients were collected by sampling the soil, so it ...
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286 views

Variogram fit won't converge

I am having some difficulty fitting a variogram to the data provided at the end of this post. For context, this is baseball data where the x and z coordinates are for the location of the pitch and the ...
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210 views

Error while performing kriging interpolation in QGIS 3.8.3

I am using QGIS 3.8.3 -Zanzibar in order to perform kriging interpolation. I get this error massage: "algorithm 'Ordinary kriging' starting… Input parameters: { 'BLOCK' : True, 'DBLOCK' : 100, 'FIELD'...
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144 views

Kriging in QGIS 3.4 Problem with Variogram Model

In QGIS 3.4.13 - Madeira there seems to be a bug in the Ordinary Kriging Modul (Processing Toolbox > SAGA). When I enter the modell "1600000*x+19202*x^2" QGIS will add a second "^" leading to wrong ...
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827 views

Building Semivariogram/Variogram in QGIS

I am trying to Interpolate Point Data in QGIS using the Ordinary Kriging Modul (SAGA) from the processing menu. Is it possible to build a Semivariogram in QGIS or call the SAGA Variogramm function ...
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130 views

Define Range when calling SAGA Kriging from QGIS

Is there a possibility to define the range-value or display the Variogram when you call the SAGA-Kriging-Module from QGIS? Maybe by using the python console?
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Performing meaningful kriging in R (averaging nearby points) [closed]

I have a set of data on the quantitative composition of the particle size distribution of the sedimentary layer. I have to build a map of the distribution of certain fractions across the entire study ...

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