raster files extent not same

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Gourav Devtalla

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Mar 20, 2025, 1:34:02 PMMar 20
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I have extracted 19 bioclimatic rasters and 2 another rasters (slope and aspect) and now i want to compute correlation among these variables. The problem is that slope and aspect have different number of coloumn and  rows which is restricting correlation. Can anyone please tell me how to align rasters of slope and aspect to be the same as my bioclimatic variables? Please help

Gebreyohannes Zenebe

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Mar 20, 2025, 2:05:11 PMMar 20
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Hello,

The below steps my help you to solve the problem:

1. To align the slope and aspect rasters with your 19 bioclimatic variables, you need to ensure that all rasters (bioclimatic, slope, and aspect) have the same resolution and coordinate reference system (CRS).

2. Use the resampling technique to adjust the resolution and extent of the slope and aspect rasters to match the bioclimatic rasters. This will align the number of rows and columns of the rasters.

3. After resampling, you can check that all rasters (bioclimatic, slope, and aspect) now have the same number of rows and columns, extent, and CRS.

Note:

For continuous data like slope and aspect, the bilinear resampling method works well. 


On Thu, Mar 20, 2025 at 8:34 PM Gourav Devtalla <devtall...@gmail.com> wrote:
I have extracted 19 bioclimatic rasters and 2 another rasters (slope and aspect) and now i want to compute correlation among these variables. The problem is that slope and aspect have different number of coloumn and  rows which is restricting correlation. Can anyone please tell me how to align rasters of slope and aspect to be the same as my bioclimatic variables? Please help

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With kind regards,

Gebreyohannes Zenebe
MSc. in Geo-Information and Earth Observation Science for Natural Resources Management
Mobile: +251914757067

Gebreyohannes Zenebe

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Mar 20, 2025, 2:25:30 PMMar 20
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As to me, resampling the bioclimatic variables to the resolution of topographic variables is better

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With kind regards,

Gebreyohannes Zenebe
MSc. in Geo-Information and Earth Observation Science for Natural Resources Management
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