Changes between Version 46 and Version 47 of OMI_observation_modules

Timestamp:

Apr 29, 2024, 12:36:09 PM (4 months ago)

Author:

lnerger

Comment:

--

OMI_observation_modules

@@ -274 +274 @@
 
 **Notes:**
-- When disttype>=10 is specified with isotropic localization the weight function for the vertical direction is constant with a valu eof one. For non-isotropic localization, the weight functions can be separately specified for the vertical and horizontal directions.
+- When disttype>=10 is specified with isotropic localization the weight function for the vertical direction is constant with a valu eof one. For non-isotropic localization, the weight functions can be separately specified for the vertical and horizontal directions. (see the [wiki:OMI_observation_modules#init_dim_obs_l_OBSTYPE description of init_dim_obs_l_OBSTYPE] for information on how to specify the ono-isotropic localization.
 - For 0 and 1 (likewise 10, 11) any distance unit can be used. The computed distance will be in the same unit. For 2 and 3 the horizontal input coordinates are in radians and the distance is computed in meters. Essential is that the grid point coordinates and observation coordinates use the same unit.
 - For 3-dimensional localization, the unit of the vertical direction can be chosen by the user. However, for geographic ditances, the unit should be chosen to be 'compatible' with the unit in the horizontal (meter). When isotropic localization is used, the unit for the vertical direction can be scaled do that the length scales in the vertical and horizontal directions are the same  (this, e.g., allows to use pressure as the distance measure in the vertical in atmospheric models). For non-isotropic localization, the units can differ without scaling. In ccase of the factorized 2D+1D localization (disttype>=10), the units in the horizontal and vertical directions are independent.
 
-See `/models/lorenz96_omi/` for an example using case 1 with periodicity in one dimension.
+See `/models/lorenz96/` for an example using case 1 with periodicity in one dimension.