Concept: lagrangian in the modeltype vocabulary

Concept URI	http://dd.eionet.europa.eu/vocabulary/aq/modeltype/lagrangian
Preferred label	lagrangian
Definition	Atmospheric numerical model. Lagrangian models take the perspective of a finite element or so - called ‘air parcel’. Over time both the position and properties of this air parcel are calculated according to the mean wind field data. The path along which air parcel travels is called its trajectory. It can be expressed as a differential equation. Advanced equation for the trajectory contains two components: mean winds and random turbulence.
Notation	lagrangian
Status	Valid
Status Modified	11.02.2016
Accepted Date
Not Accepted Date