Emissions Scenarios - IPCC

588
Units
Table X-1: SI (Système Imernationale) Units and Fractions and Multiples Having Special Names
Physical Quantity Name of Unit Symbol
amount of substance mole mol
area hectare ha
energy joule J (kg m2 s-2)
force newton N (kg m s-2)
frequency hertz Hz (s"' = cycles per second)
length metre (meter in this report) m
length micron \1т(Ш^ m)
power watt W(kgm2s-3 = Js-')
pressure pascal Pa (kg m-is-2 = N m'^
temperature kelvin К
time second s
weight (mass) kilogram kg
weight tonne (ton in this report) t (103 kg)
weight gram g (10-3 kg)
Fraction Prefix Symbol
10-'2 pico P
10-9 nano n
10-6 micro M
10-3 milli m
10-2 cent с
10-' deci d
10 deca da
102 hecto h
103 kilo к
10" mega M
109 giga G
1012 tera T
lO's peta P
10i« exa E
1021 zetta Z
Table X-2: Non-SI
Units
°C degrees Celsius (0°C = ~273K); Temperature differences are given
in °C rather than the more correct form of "Celsius degrees"
Btu
British Thermal Unit (1.055 kJ)
kWh
kilowatt-hour (3.6 Mi)
MW^
megawatts of electricity (electrical capacity)
ppmv parts per million by volume (10^)
ppbv
parts per billion by volume (10^)
pptv
parts per trillion by volume (10i2)
tce
tons of coal equivalent (29.31 GJ)
toe tons of oil equivalent (41.87 G J)
TWh
terawatt-hour (3.6 PJ)