Rain Gauge Design Competition (Activity organized by HKU Faculty of Engineering and the Hong Kong Observatory in 2006) http://www.cs.hku.hk/~rain/
You can find photos and videos in the sections "Schedule" and "Download".
Anemometer Design Competition (Activity organized by HKU Faculty of Engineering and the Hong Kong Observatory in 2008-2009) http://www.cs.hku.hk/~wind/
You can find photos and videos in the sections "Schedule" and "Download".
Visibility Measurement Method Design Competition (Activity organized by HKU Faculty of Engineering and the Hong Kong Observatory in 2011-2012) http://www.cs.hku.hk/~visible/
You can find photos and videos in the sections "Schedule" and "Download".