Method for calculating near surface water vapor flux under local winds on Mars

► Developed models for simulating heat/water transport at near surface Mars. ► Winds and convective plumes significantly affect water flux in the regolith. ► Effect of wind speed and regolith thickness on water vapor flux was studied. ► Studied effect of solar heat flux and atmosphere temperature/pressure on water flux. ► Introduced interfacial Sherwood number for calculating real near surface water flux.