All Questions
12 questions
0
votes
0
answers
584
views
SAGA GIS - regression kriging
I have a problem with regression kriging in SAGA under QGIS. It gives me an error - could not execute the tool. I want to create temperature maps from data set of meteorologic station and DEM.
I have ...
- 1
0
votes
0
answers
506
views
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, ...
- 151
2
votes
1
answer
370
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?
- 173
1
vote
1
answer
534
views
What are the formulas used in SAGA Ordinary Kriging?
can some one name the formulas avaible in the Ordinary Kriging Modul of SAGA:
What ist the exponential, spherical, Gaussian-Model, etc.?
- 173
3
votes
1
answer
745
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 ...
- 141
1
vote
1
answer
353
views
DEM, points values and elevation to create a map of temeperature
I am using SAGA - Universal Kriging (Global) for this, but I am stucked. I have grid (.tif) for Serbia with elevation values, and .shp file with points that have mean yearly temperature. I want to ...
- 75
2
votes
1
answer
831
views
How to make ordinary krigging with a spherical variogram in SAGA GIS?
I have a very special map to make: it's a sea bird density map. To do this, I interpolate the observation points with ordinary kriging with a variogram. As I've read, the variogram must be of "...
- 304
5
votes
1
answer
7k
views
Variogram model - SAGA on QGIS Processing
QGIS 2.14 (Win) comes with SAGA 2.12, which Ordinary Kriging supports 6 variogram model options.
However, if I run SAGA Ordinary Kriging from QGIS Processing Toolbox, there is no drop down menu. Only ...
- 31.2k
3
votes
0
answers
800
views
How to interpolate (ordinary kriging) large files with QGIS processing
I'm using the Saga ordinary kriging tool as apart of different processing models. The biggest issue I have is the very slow performance. My point shape files have mostly more than 200.00 points (some ...
- 2,363
8
votes
1
answer
507
views
Why is SAGA kriging slower in QGIS than in SAGA itself?
I'm using QGIS for a while. In my opinion the SAGA kriging tool (processing toolbox) is very slow. Is that an QGIS issue? I tried to interpolate a point layer with 300.000 points (I know it is big) ...
- 2,363
2
votes
0
answers
1k
views
Error when kriging in SAGA: grid file could not be opened [duplicate]
I have a point and a polygon vector shape (shapes) which I want to interpolate by using the saga tool "Ordinary Kriging". I always get the following error message:
Oooops! The following ...
- 2,363
6
votes
1
answer
5k
views
Performing Ordinary Kriging in SAGA via QGIS SEXTANTE Plug-in?
I'm trying to learn how to apply the kriging analysis in QGIS using the SEXTANTE plug-in and SAGA tools. It appears that I have my SEXTANTE and SAGA folders configured properly according to the user ...
- 281