Large-Eddy Simulation #163: Land boundary layer

LES RUN #163: Land boundary layer. This simulation is exactly the same as LES #149 except the entire 12-km long domain is over land. The purpose was to see how the ML we generate over land grows (previously we only grew it over 6-km) and how the coherent structures from 6-12 km look in it. Click here to see the NMSTASK file . This domain is 12 km (east-west) by 1.650 km (north-south) wide by 1.0 km tall. The horizontal and vertical resolution is 15 m in all directions. The flow is from the NW with a 400 m deep mixed layer. The animations shown are for a simulation that is about 37-minutes long (frames are every 15-s).

The west wall of this domain is perturbed by adding a random number between + and - 0.5 cm/s to the v-component of flow for the bottom 3 grid-points 34-gridpoints east of the west wall. This is done to speed the development of a shear-driven mixed layer over the land before the air advects over the water.

UW Lidar // Jan 4, 2000 //

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