WorldCLIM’s CMIP6 Future Climate models data download errors

[shawkat sohel]

Hi,

I'm facing some worldclim data issues specifically for the following WorldCLIM’s CMIP6 Future Climate Data models, available at https://www.worldclim.org/data/cmip6/cmip6_clim30s.html. These data are also available here https://geodata.ucdavis.edu/cmip6/30s/EC-Earth3-Veg/

Data details:

wc2.1_30s_bioc_EC-Earth3-Veg_ssp126_2021-2040.tif

wc2.1_30s_bioc_EC-Earth3-Veg_ssp245_2081-2100.tif

wc2.1_30s_bioc_EC-Earth3-Veg_ssp370_2041-2060.tif

Spatial Resolution: 30 seconds

Models and issues:

Data Error: Downloaded Raster was empty / No Data generated on the map (In ArcGIS/QGIS)

Is there a solution to these errors? Alternatively, where can I get error-free data?

Thank you.

Shawkat

[Beatriz]

  Hi,

I've encountered this issue before; some raster files from specific models are empty. What you could do is download the 'pr', 'tn', and 'tx' variables from the desired global circulation model, scenario, and year, and then create the 19 bioclimatic variables from them in R.

example: 

library(raster)

files_prec <- paste0(getwd(), "/wc2.1_30s_prec_MIROC6_ssp370_2021-2040.tif")
files_tmin <- paste0(getwd(), "/wc2.1_30s_tmin_MIROC6_ssp370_2021-2040.tif")
files_tmax <- paste0(getwd(), "/wc2.1_30s_tmax_MIROC6_ssp370_2021-2040.tif")


prec <- stack(files_prec)
tmin <- stack(files_tmin)
tmax <- stack(files_tmax)

print(prec)
print(tmin)
print(tmax)

nlayers(prec)
nlayers(tmin)
nlayers(tmax)

# Calculate the bioclimatic variables
library(dismo)
bioclimatics_vars <- biovars(prec = prec, tmin = tmin, tmax = tmax)
print( bioclimatics_vars)

# Create a folder to save raster files
dir.create("bioclimatics")

#Iterating over each layer of the RasterBrick object.
lapply(1:nlayers(bioclim_vars), function(i) {
  # Extract the layer i from the RasterBrick object
  layer <- bioclim_vars[[i]]
 
#Defining the filename
 filename <- paste0("variaveis_bioclimaticas/bioclim_var_", i, ".tif")
 
#Save the layer as a raster file
  writeRaster(layer, filename, format = "GTiff", overwrite = TRUE)
})

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[shawkat sohel]

Hi Beatriz,

Thank you for the suggestions. I need to manage cloud space to run this since I don't have much space in my C drive. I will update you.

Thanks again.

Kind regards,

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