Future climatic variables

[Gourav Devtalla]

I need  help in predicting distribution of a species with future climatic scenarios. I have downloaded ssp1 and ssp5 file for the year 2021-2040 and 2041-2060 but as I am opening the file it has several bands. I don't know what to do.

[Gebreyohannes Zenebe]

Hello,

If you downloaded daily or monthly data, it comes with layers, not bands. I'm not sure which data provider you used, but I suggest downloading the 19 bioclimatic variables directly. Alternatively, you can aggregate your daily data to a monthly basis and then generate the 19 Bioclim variables using the biovars function from the dismo package in R.

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With kind regards,

Gebreyohannes Zenebe
MSc. in Geo-Information and Earth Observation Science for Natural Resources Management
Mobile: +251930527887
             +251993155395 email: gebreyohan...@mu.edu.et; g.ze...@seefconsult.com
https://orcid.org/0000-0002-6100-4908

On Sun, Jul 20, 2025, 8:42 AM Gourav Devtalla <devtall...@gmail.com> wrote:

I need  help in predicting distribution of a species with future climatic scenarios. I have downloaded ssp1 and ssp5 file for the year 2021-2040 and 2041-2060 but as I am opening the file it has several bands. I don't know what to do.

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[Gourav Devtalla]

I downloaded the data from worldclim database. I've already done the niche distribution for present scenario and I'm aware of that process. The problem I'm having is with the future climatic variables that I've downloaded from world clim for the year 2021-2040 and 2041-60. This data had four variables namely bio , tn tx and prec now i want to know how to process this data on maxent and before that i want to learn how to process this data on arcmap or qgis. Hope i was specific about my query. 

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