tcnames={
    # basin - S : SIO
# basin - P : SPWAC
# basin - Q : SLANT
# basin - A : ASEA
# basin - B : BAYB
# basin - I : NIO
# basin - W : WESTPAC
# basin - C : CENTPAC
# basin - E : EASTPAC
# basin - L : LANT
        ('1901','01L'): 'UNNAMED',
        ('1901','02L'): 'UNNAMED',
        ('1901','03L'): 'UNNAMED',
        ('1901','04L'): 'UNNAMED',
        ('1901','05L'): 'UNNAMED',
        ('1901','06L'): 'UNNAMED',
        ('1901','07L'): 'UNNAMED',
        ('1901','08L'): 'UNNAMED',
        ('1901','09L'): 'UNNAMED',
        ('1901','10L'): 'UNNAMED',
        ('1901','11L'): 'UNNAMED',
        ('1901','12L'): 'UNNAMED',
        ('1901','13L'): 'UNNAMED',

}