Martian water ice latitude dependent mantle predicted by improved climate model

Converging geomorphologicalevidences point to the deposition of a “Latitude-Dependent Mantle” (LDM) of water ice on Mars up to ~30°latitude in both hemispheres, of age consistent with the latest obliquity rise to 35°. GCM studies can’t explain how ice would accumulate outside the polar regions assuming a permanent reservoir at the north pole like today. We present our simulations at 35°obliquity with the latest improvements of the Mars PCM, with a focus on albedoand thermal inertia.