import xarray as xr
import numpy as np

# Create temperature data
temperature = np.random.rand(100, 100) * 20 + 10

# Create coordinate arrays for latitude and longitude
latitudes = np.linspace(-90, 90, 100)
longitudes = np.linspace(-180, 180, 100)

# Create an Xarray data array with labeled coordinates
da = xr.DataArray(
    temperature,
    dims=['latitude', 'longitude'],
    coords={'latitude': latitudes, 'longitude': longitudes}
)

# Access data using labeled coordinates
subset = da.sel(latitude=slice(-45, 45), longitude=slice(-90, 0))