Atmospheric scientists discovered the famous Meteor Crater in Arizona as a natural laboratory for studying downslope wind storms occurring during local drainage flows impinging on the crater rim (see metcrax for details). One tessera of the comprehensive suite of instrumentation, set up for the fall 2013 IOP, is a NCAR-owned SODAR-RASS produced by METEK. It was deployed 2 km SE of the Meteor Crater with the help of our engineer. The depth of the stable layer containing the drainage flow is expected not to exceed 100 m and is thus well within the wind- and temperature sounding range of the SODAR-RASS.
The picture shows the acoustic shield of the SODAR antenna, the parabolic dishes of the RASS transmit and receiving antennas. The rim of the Meteor Crater is at 2 km distance in the background.