Discussion
Which instrument network was deployed to detect this hazard at airports?
Answer: C
Terminal Doppler weather radars measure the radial velocity field close to the runway and detect the divergent signature of a microburst outflow directly. Low level wind shear alert systems using anemometer networks serve the same purpose. Barometers respond too slowly, radiosondes sample only one point in the vertical, and satellite imagery cannot resolve a feature only a few kilometres across near the surface. Most errors here come from carrying a result across from a neighbouring case where it does not hold.
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