Water in the atmosphere Lab1 Units Water in the atmosphere Rainfall Analysis Due date : October 10,2006 #306 45 St George Street Or Monday Lecture

Physical units and their conversions Length: 1 m + 2 cm = ____ M 2) Speed: (100 km + 100 m)/(1 h + 30 minutes) = ____ km/h 3) Area: 1 km2 = ____ M2 4) Volume: 1 km3 = ____ M3 5) Density: 1 ton/m3= ____ g/cm3 6) Force: 1.2 kg  9.8 m/s2 = ____ Newton 7) Force: 500 g  80 cm/s2 = ____ Newton 8) Pressure: 1 kg  9.8 m/s2  2 m 2 = ___ Pascal = ____ Mb 9) Pressure: 1 ton  0.05 km/s2  5 m 2 = ___ Pascal = ____ Mb 10) Energy: 20 J  5 s = ____ Watts

Water vapor in the atmosphere where es is the saturated water vapor pressure in mb, and T is the air temperature in C. Calculate the es in mb and Pa, respectively, at T=0C and T=30C Note 1mb=100Pascal http://www.sengpielaudio.com/ConvPress.htm

3. According to the equation in question 2, the saturated water vapor pressure is 6.1078 mb at 0 C. Under the gravity of 9.8 m s-2, what is the total mass (kg) of water vapor that creates this pressure on an area of 1 m2? Pressure = Force/Area Force= Pressure x Area Weight = Force = Mass x Acceleration Mass = Force/ Acceleration

http://eratos.erin.utoronto.ca/UTMMS/

Rainfall Analysis October 5 October 6 October 7

Hr 1 Hr 2 Hr 3

Hr 3 start Hr 2 end Hr 1 end Hr 2 start

Maximum Amount of Rain (mm) Maximum Rainfall Intensity (mm/h) Duration (min) Maximum Amount of Rain (mm) Maximum Rainfall Intensity (mm/h) 60 120 360 720 1440 http://www.physics.uoguelph.ca/tutorials/GLP/ http://www.bmb.leeds.ac.uk/mbiology/ug/ugteach/micr1020/maths/micromaths.html