Simulating Titan’s Methane Cycle with the TitanWRF General Circulation Model

•We use the 3D TitanWRF General Circulation Model to simulate Titan’s methanecycle.•An active tropospheric methane cycle slightly weakens stratospheric superrotation.•Peak condensation is tied to (a) spring/summer polar upwelling and (b) the ITCZ.•Latent heat feedback alters surface/near-surface temperatures and the circulation.•More surface methane accumulates at the pole for which perihelion occurs in winter.