[Wrf-users] mass budget analysis
Joshua C Demko
CORYUW at uwyo.edu
Fri Aug 21 09:11:55 MDT 2009
Good morning everyone:
Has anyone attempted to calculate mass budget approach (heat/moisture etc...) over a specific area of your domains? I am looking at the solenoidal circulation that develops around the Santa Catalina Mtns, near Tucson, AZ and its interaction with moist convection that develops over the higher terrain. At this time, I am using a 30x30 km^2 box centering on the mountain and calculating the horizontal and vertical mass fluxes (in units of Kg/s) for several different boxes, most specifically 2 boxes inside the PBL. The first box being the surface to mid-PBL then mid-PBL to PBL-top. I am running into issues comparing the fluxes as the numbers for each box suggest a dynamically, unstable model as we all know WRF is definitely stable. I have attached an IDV images of a forecast hour illustrating the box levels w/r/t the mountain and subsequent flux numbers (all x10^6 kg/s). I am starting to believe theses errors or residuals are a combination of finite differencing and conversion from sigma to pressure surface errors???? Would love to hear what everyone is thinking or have successfully tried this avenue.
University of Wyoming
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