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Questions tagged [stack]

stack in this context is intended for questions relating to the stacking of rasters, it is not intended for questions relating to a GIS software stack

0
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1answer
88 views

Matching extent (samples & lines) to get multi-temporal stack

I downloaded several Landsat scenes (4x3) to create some multi-temporal stacks to see the phenological difference in April/March - mid summer - autumn. I actually use The EnMap Box which has been ...
5
votes
0answers
168 views

Stacking and masking Landsat at the same time with rasterio

Based on answers from previous questions 1,2 and the Masking a raster using a shapefile guide from rasterio cookbook, I wrote the code below. The code runs correctly. I would like to improve it. 1- ...
3
votes
0answers
494 views

How to calculate 90% confidence interval in a raster stack

I have a stack of grid files (23) in ASC format from a MODIS sensor and I need to calculate a 90% confidence interval, mean, min, etc, for each one in R, how can I do that? specially the interval. #...
2
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0answers
33 views

Biweekly time series for raster stack in r

I have a netcdf file with daily data and I calculate for each week some statistics, using the "apply.weekly" command in the "xts" library. However, I would like to calculate bi-weekly statistics, ...
2
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0answers
128 views

Layer Stack 6 Landsat8 bands

I have 6 images from Landsat 8 (Green,Red,NIR,SWIR1,SWIR2,NDVI). When I want to layerstack them with "Merge" I always get a result tif which is just black and white, however I can see that all 6 bands ...
2
votes
0answers
365 views

R raster stack 4 dimensions

I am trying to create a raster stack / brick from a list of ncdf files with the dimensions 160x160x24x1). r = stack(files) This gives me a raster stack but without the 4th dimensions which is ...
1
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0answers
22 views

How do I compare multiple years worth of geomorph changes in a river while drawing one profile line?

I have many years worth of DEMs of a river I'm studying. I'm very, very new to ArcGIS (think one intro class), and learned how to use the 3D analyst tool. What I'd like to be able to do, is to draw ...
1
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0answers
54 views

How to save statistical parameters of a raster stack in a csv using R

I have a reference raster and a stack of other rasters. I wanted to perform Mean, Std Dev and Bias of the reference with respect to the remaining. So I calculated the Cell Stats of all but when I try ...
1
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0answers
245 views

Is it possible to list SpatialGridDataFrame files to be used in a loop?

I have a lot (>50) of SpatialGridDataFrame files that I need to turn into raster files, stack with a set of raster files I already have and then extract data from random points from each layer of all ...
1
vote
0answers
71 views

Stacking/Aligning High-Res UAV Mosaics from Different Dates in QGIS?

I have two mosaics taken in different band sets respectively, on two different flights- of a crop field. The flights were taken a day apart, so the vegetation cover has not changed. The only issue is ...
1
vote
0answers
114 views

Determining Highest Position in QGIS for raster stacks with 10+ images?

I want to follow up on this question from last year Emulating ArcGIS Highest Position tool in QGIS? Here the question is if QGIS has a tool like the "highest position" tool in ArcGIS, where, in a ...
1
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0answers
214 views

Raster package limitations

I am very new to R and to raster package and I was hoping that someone could provide some guidance. I am trying to run a function that averages a series of rasters, 300 to be exact, they are in geotif ...
1
vote
0answers
341 views

gdal_merge shifts rasters after processing, layer stack is slightly off

I have experienced that gdal shifts rasters. The outputs of gdal_warp are often skewed, have different pixel sizes and so forth. A known error which has also been discussed here. But now, I had to ...
1
vote
0answers
179 views

write rasters from estudm2spixdf with significant digits

I have estimated my kernels using kernelUD from the adehabitatHS package which produces information from multiple animals as a class estUDm. I am trying to write out from R to get into ArcGIS the ...
0
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0answers
116 views

Convert raster list to raster stack in Python

I have a folder (with subfolders) containing different raster files (Sentinel-2 images). I want to import all the bands to python and creater a raster stack to allow further processing (...
0
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0answers
83 views

What is the difference between a raster moasic and a raster stack?

I'm trying to figure out the most useful way to store and process some MODIS Vegetation Index data (MOD13Q1). Currently, I have many .hdf files that cover the same spatial area over 18 years. I plan ...
0
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0answers
233 views

Google Earth Engine: Stack an ImageCollection

Does anyone know how can I stack all this collection? I made my own collection from January Landsat images (L7 and L5) and I would like to stack all the images to check which are the areas with more ...