<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><span style="font-size: 14px;">Dear MITgcm-ers,</span><div><span style="font-size: 14px;"><br></span><div><span style="font-size: 14px;">I’m trying to include a mass-loading forcing in ocean circulation simulations.</span></div><div><span style="font-size: 14px;">The 3D distribution of Evaporation/Condensation rate E in kg/m2/s is known. I’m testing its influence on ocean circulation.</span></div><div><span style="font-size: 14px;">Note that I only want to consider the Evaporation effect on mass loss and gain, and not consider its influence on salinity.</span></div><div><span style="font-size: 14px;">So, in my model setup, I multiply E*dx*dy to make it in unit of kg/s.</span></div><div><span style="font-size: 14px;">I set: addMassFile='addmass_160x72x44.bin’, and also <span style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(252, 252, 252); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">#define </span><a class="reference external" href="http://lxr.mitgcm.org/lxr2/ident/MITgcm?_i=ALLOW_ADDFLUID" style="box-sizing: border-box; color: rgb(48, 145, 209); text-decoration: none; cursor: pointer; outline: 0px; overflow-wrap: anywhere; font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(252, 252, 252);">ALLOW_ADDFLUID</a> in code/.</span></div></div><div><span style="font-size: 14px;">However, I did not see its influence on circulation, I’m not sure if I set correctly.</span></div><div><span style="font-size: 14px;">And let me make sure that negative addmass means mass source, and vice versa?</span></div><div><span style="font-size: 14px;"><br></span></div><div><span style="font-size: 14px;">Best regards,</span></div><div><span style="font-size: 14px;"><br></span></div><div><span style="font-size: 14px;">Yanhong</span></div></body></html>