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(A) An illustration of wind speed and wind direction of Tests 4 and 17. In Test 17, the recorded wind speed was 4.5 m/s and the wind direction 95°. In Test 4, the recorded wind speed was 3.5 m/s and the wind direction 160°, refer to (B). The satellite photo of Hospital GH was obtained from http://www.maps.google.com. (B) The ambient air temperature, wind speed, and the direction measured by the Hong Kong Observatory at Wong Chuk Hang weather station, close to the TB Hospital GH.
