Calculating the trend in European temperatures
You want to calculate the average European temperature from 1980 to present using the ERA5 dataset. This data is a Zarr dataset of monthly mean temperature and precipitation, on a grid of latitudes and longitudes. The Zarr file is chunked so that each subfile on the disk is an array of 15 latitudes, 15 longitudes, and 12 months.
xarray has been imported for you as xr.
Deze oefening maakt deel uit van de cursus
Parallel Programming with Dask in Python
Oefeninstructies
- Use
xarrayto open the"data/era_eu.zarr"dataset. - Calculate the mean of the
tempDataArray over thelatandlondimensions. - Perform a rolling mean over the
timedimension using a window size of 12. - Plot the resulting time series of
temp_rolling_mean.
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
# Open the ERA5 dataset
ds = ____
# Select the temperature dataset and take the latitude and longitude mean
temp_timeseries = ds[____].____
# Calculate the 12 month rolling mean
temp_rolling_mean = temp_timeseries.____(____).____()
# Plot the result
____
plt.show()