Having moved the STS2-C (HAM5) from Roam2 (near NE BSC8{H2 ITMY} chamber leg/SEI Pier) to Roam3 (~2/3 distance to BSC4 {H2 BS}) on Friday during EQ downtime, some weekend wind has given a good comparison to examine. Reference Traces are from the quiet period (0805utc May 1) and the current traces are during the windy time beginning at 2300utc April 30.
See the first plot attached showing the wind velocity at the corner station. 180 degrees on the anemometer is pretty much right out of the +X to -X direction, i.e., no Y component and this may likely explain why the Y dof comparison of the ASD is nearly identical. The coherence shows stronger frequency dependence. On the X dof, the STS2-C at Roam3 is certainly noisier than STS2-B at its home location and a bit more so during the higher wind. However, comparing the same plots from aLog 35848, Roam3 is a much less noisier location than Roam2. Caveat: the wind may be a bit quieter (few mph) and the direction is nearly opposite. But, we might feel the largest deal is ~doubling the distance from the south wall. Still, the North wall which is getting the direct impact of the wind here is much farther (at least 3 times farther) than the South wall which was getting the direct hit from the aLog 35848 wind storm. On the Z dof comparisons, the low wind time equity extends to lower frequencies and during high wind that breaks down around 10 or 20mHz.
Conclusion, Roam3 is a better position than Roam2 location, at least for this wind direction but the STS2-B location remains best. Need a good SW wind (from +Y) to really fill in some holes.