A Multiple Kernel Learning Approach for Air Quality Prediction

Table 3

Meteorological samples.

Local time in Sha Tin	T	P0	P1		H	WD	WP	dew
29.01.2015 02:00	15.2	763.4	764.5	1.0	73	Wind blowing from the east	3	10.3
29.01.2015 01:00	15.6	763.9	765.1	0.4	77	Calm, no wind	0	11.5

T, air temperature (degrees Celsius) at 2 meters height above the Earth’s surface; P0, atmospheric pressure at weather station level (millimeters of mercury); P1, atmospheric pressure reduced to mean sea level (millimeters of mercury); , pressure tendency, changes in atmospheric in the last three hours; H, relative humidity (%) at a height of 2 meters above the Earth’s surface; WD, mean wind direction (compass points) at a height of 10–12 meters above the Earth’s surface over the 10-minute period immediately preceding the observation; WP, mean wind speed at a height of 10–12 meters above the Earth’s surface over the 10-minute period immediately preceding the observation (meters per second); dew, dew point at 2 meters height above the Earth’s surface (degrees Celsius).