an upper air sounding system collected data in eastern Wyoming
during the evolution of the boundary layer during the 2017 Eclipse.
Dual-Doppler lobes with about 15 km spacing allow vector wind calculations in the
boundary layer, revealing boundary layer rolls and other structures. These BL rolls
are seen to decrease, disappear, then reappear during the eclipse. An array
of 10 Pods in the dual-Doppler lobes measured the drop and recovery of wind
speeds and temperatures. A wind shift boundary developed during the eclipse, and
propagated through the dual-Doppler study area.
Upper air soundings were launched before, during and after totality.
Preliminary results from the synthesis of the data will be described.
While some of the initial results are what would be expected, this
multiple-Doppler, fine-scale surface array, and upper air sounding set of observations
allows a uniquely fine-scale reconstruction of the eclipse BL including both
temporal and spatial variations and heterogeneity to be explored.