About truelat in Lambert Conformal Conic

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I've been using the truelat 1 and truelat 2 in the lambert conformal conic projection that is set in the WRF Domain Wizard. But I'd like to specify each one to get more precision in the last domain (1km).
So I have the doubt which one is the northern latitud and which one is the southern, and if it is the same for nothern and southern hemisphere.