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
        ('1903','01L'): 'UNNAMED',
        ('1903','02L'): 'UNNAMED',
        ('1903','03L'): 'UNNAMED',
        ('1903','04L'): 'UNNAMED',
        ('1903','05L'): 'UNNAMED',
        ('1903','06L'): 'UNNAMED',
        ('1903','07L'): 'UNNAMED',
        ('1903','08L'): 'UNNAMED',
        ('1903','09L'): 'UNNAMED',
        ('1903','10L'): 'UNNAMED',

}