Point Origin
From MohidWiki
To define a point origin in the lagrangian module you need to define the coordinates where the tracers are to be released. This can be done in several ways by adding the keywords:
POSITION_COORDINATES : -10.0 43
where the values are the X and Y geographical coordinates,
POSITION_CELLS : 45.5 21.5
are the values are the I and J cells' indexes.
NOTE: The above is not an exhaustive list of ways for how to insert a point origin.
Example Lagrangian_1.dat
OUTPUT_TIME : 0 3600 OUTPUT_MAX_TRACER : 1 OUTPUT_CONC : 2 DT_PARTIC : 60 <BeginOrigin> ORIGIN_NAME : Off Vigo GROUP_ID : 1 EMISSION_SPATIAL : Point EMISSION_TEMPORAL : Instantaneous BOTTOM_EMISSION : 0 OLD : 0 POINT_VOLUME : 1 NBR_PARTIC : 8 FLOAT : 1 MOVEMENT : SullivanAllen VARVELHX : 0.1 VARVELH : 0.03 TURB_V : Constant VARVELVX : 0.01 VARVELV : 0.003 !longitude -10.0ºW, latitude 43.0ºN POSITION_COORDINATES : -10.0 43 !POSITION_CELLS : 45.5 21.5 DEPTH_METERS : 0. START_PARTIC_EMIT : 2007 04 25 09 33 20 <EndOrigin>