## 4 Results and Discussion
### Impact of Different Scatterometer Product Resolutions  
[PERSON] et al. [56] analyzed 9 cases in order to identify characteristics of gust fronts observed by a Doppler radar located in Norman, OK. The average maximum and minimum height of the respective gust fronts was 2.6 and 0.8 km, respectively. The authors found that the gust fronts can be detected as thin lines of echoes in the reflectivity field with a maximum of 7 dBZ. However, this feature becomes apparent at a later stage of the storm's lifecycle, after the gust front has moved away from the parent storm. Similar cold pool characteristics were identified by [PERSON] et al. [62], while also noting insect-related dual polarization radar signatures in the gust front. Additionally, turbulence that is present between the outflow boundary and the environmental flow can be identified as lines of enhanced spectrum width (e.g., [63]), thus indicating the presence of the gust front. Figure 2 was created to test the detection of the outflow boundary in any of the aforementioned radar fields. At the overpass of ASCAT-A there was no apparent line of low reflectivity  
Figure 1: Time series depiction of reflectivity field and single-Doppler winds for KHGX radar station. Concentric circles (black dashed) are drawn at 50 km intervals, i.e., at a distance of 50, 100 and 150 km from the radar location. (**b,e**) correspond to the closest times of the ASCAT-A and -B overpass, respectively. echoes (Figure 2a) in front of the MCS, which could be attributed to the height of the outflow boundary relative to the distance from the radar. The outflow boundary should have been present at least about 100 km away from the radar (Figure 2a, middle concentric), which corresponds to reflectivity retrievals at a height of at least 1.5 km. It is probable that the beam was above the outflow, thus minimizing the detection of the outflow boundary in this case. The Doppler-retrieved winds (Figure 2c) were northeesterly within the precipitating system and shifted south-southwesterly in front of the MCS, where convergence was observed along its boundary. Although, the outflow boundary was not prevalent in the reflectivity field, single-Doppler analysis winds captured a shift to south-southwesterly flow along the boundary of the MCS, which might indicate the presence of a deep outflow boundary embedded at the edge of the system. Figure 2: NEXRAD (KHGX) and single-Doppler analysis wind fields. The subfigures at the left correspond to the closest time of ASCAT-A overpass: (**a**) Radar reflectivity field (in dBZ), (**c**) single-Doppler analysis wind field (in m s\({}^{-1}\)) and divergence field (in s\({}^{-1}\)), and (**e**) radar-estimated precipitation rate (in mm h\({}^{-1}\)) with enhanced spectrum width magnitude (in m s\({}^{-1}\)). (**b**,**d**,**f**) have the same configuration but correspond to the closest time of ASCAT-B overpass. Dashed concentric circles indicate radial distance from the radar at 50, 100 and 150 km. Similar to ASCAT-A, at the overpass of ASCAT-B there was no apparent line of low reflectivity echoes (Figure 2b) in front of the MCS. The Doppler wind field (Figure 2d) captured backing winds over the precipitating system, close to the time of ASCAT-B overpass. A large area of divergence was present in front of the system, at 100 km distance from the radar (middle dashed circle). Over the same area and in front of the heavy precipitation, elevated values of spectrum width were observed, with highest value of 11 m s\({}^{-1}\) (Figure 2f). However, the linearity of the feature observed by [PERSON] et al. [56] at low levels was not present in this case. An indication of the presence of the outflow boundary could be deduced from the above observations, while at the same time the rear-to-front flow was also detected in the wind analysis field. Scatterometer wind retrievals encompass a set of solutions (up to 4) for each wind vector cell, with the first two being of opposite direction due to the sinusoidal nature of the GMF.