def get_spaceweather_imageurl(iu_address, iu_date, iu_filename, iu_extension, \
        verbose):
    """Returns a complete image url string tailored to the spaceweather site by 
    concatenating the input image url (iu) strings that define the
    address, the date folder, the filename root, and the filename extension.
    If verbose is truthy, then print the returned image url string
    """
    sw_imageurl = iu_address + iu_date + "/" + iu_filename + iu_extension
    if verbose:
        print("Input image file URL: \n{}".format(sw_imageurl))
    return sw_imageurl