def formatColorBar(cb, cblabel):
    """
    Format the color bar by adding a fontsize=24 label and changing the tick
    label to size 20.

    Parameters
    ----------
    cb: matplolib.colorbar intance, the color bar to modify
    cblabel: str, label for the color bar

    Returns
    -------
    None
    """
    cb.set_label(cblabel, fontsize=24)
    cb.ax.tick_params(labelsize=20)
