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Graphing some WRF output variables

PostPosted: Wed Aug 31, 2016 6:26 pm
by cheandrew2
Hi everyone.

I am making a experiment of evaluation of the land cover change effects over the precipitation, making use of Noah MP parameterization scheme. To explain the changes simulated, I have graphed with NCL some variables as Transpiration, ground surface evaporation, canopy evaporation, evaporation of canopy water intercepted, etc. In this fields, I have obtained negative values and my workgroup doesn't know because occur these values in mass fluxes as these. Someone knows Why these negative values occur? What these values mean physically?

In wrf output files, using ncview, I see these negative values in the variables.

I will be very grateful, if someone helps me.