"1" . . . "tendency_of_northward_wind_due_to_diffusion"@en . "SDN:P07::CFSN0147" . "SDN:P07::CFSN0147" . "2006-09-26 18:12:43.0" . "accepted"@en . "" . . "1" . "2006-09-26 18:12:43.0" . . "false" . . "The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. 'tendency_of_X' means derivative of X with respect to time. 'Northward' indicates a vector component which is positive when directed northward (negative southward). Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.)"@en . . . . . "SDN:P07::CFSN0147" .