. "2021-01-18 16:23:44.0" . . "surface_downward_y_stress"@en . "SDN:P07::CFSN0304" . . . "3" . "false" . "" . "SDN:P07::CFSN0304" . . . "accepted"@en . "3" . . . . . . "SDN:P07::CFSN0304" . . . "The surface called \"surface\" means the lower boundary of the atmosphere. \"Surface stress\" means the shear stress (force per unit area) exerted by the wind at the surface. A downward stress is a downward flux of momentum. Over large bodies of water, wind stress can drive near-surface currents. \"Downward\" indicates a vector component which is positive when directed downward (negative upward). \"y\" indicates a vector component along the grid y-axis, positive with increasing y. \"Downward y\" indicates the ZY component of a tensor. A downward y stress is a downward flux of momentum, which accelerates the lower medium in the direction of increasing y and and the upper medium in the direction of decreasing y."@en . "2021-01-18 16:23:44.0" .