Explains how to convert a few meteorological and non-meteorological parameters.
Length
1 kilometer (km) = 1000 meters (m)
= 0.6214 statute mile (mi)
= 0.5396 nautical mile (n mi)
= 3281 feet (ft)
1 mile (mi) = 5280 feet (ft)
= 1609 meters (m)
= 1.61 kilometers (km)
1 meter (m) = 100 centimeters (cm)
= 3.281 feet (ft)
= 39.37 inch (in)
1 centimeter (cm) = 10 millimeters (mm)
= 0.3937 inch (in)
= 0.01 meter (m)
1 micrometer (um) = 10 (to the power of -6) m
= 0.0001 cm
1 inches (in) = 2.54 cm
= 0.08 ft
1 degree latitude = 111 km
= 60 nautical mi
= 69 statute mi
Speed
1 m/s = 3.60 km/h
= 2.24 mi/hr
= 1.94 knots
1 knot = 1 n mi/hr
= 1.15 mi/hr
= 0.51 m/s
= 1.85 km/hr
1 mile per hour (mi/hr) = 0.87 knot
= 0.45 m/s
= 1.61 km/hr
1 kilometer per hour (km/hr) = 0.54 knot
= 0.62 mi/hr
= 0.28 m/s
Force
1 dyne = 1 gram per centimeter per second per second
= 2.2481 X 10 (to the power of -6) pound (lb)
1 newton (N) = 1 kilogram per meter per second per second
= 10 (to the power of 5) dynes
= 0.2248 lb
Area
1 square centimeter (cm2) = 0.15 in squared
1 square inch (in2) = 6.45 cm squared
1 square meter (m2) = 10.76 ft squared
1 square foot (ft2) = 0.09 m squared
Volume
1 meter cubed = 10 (to the power of 6) cm cubed
1 liter (l) = 10 (to the power of -3) m cubed
= 1.06 quarts (qt)
= 0.264 gallons (gal)
= 1000 cm cubed
1 cubic centimeter (cm3) = 0.06 in cubed
1 cubic inch (in3) = 16.39 cm cubed
Mass
1 kilogram (kg) = 1000 grams (g)
= 2.205 pounds (lb)
1 gram (g) = 0.0353 ounce (oz)
= 0.00220 lb
1 metric ton = 1000 kg
= 2205 lb
Pressure
1 millibar (mb) = 100 pascals (Pa)
= 100 newtons/meter squared (N/m squared)
= 0.0145 lb/in squared
= 0.750 mm of mercury (Hg)
= 1000 dynes/cm squared
1 standard atmosphere = 1013.2 mb
= 101.3 kPa
= 14.70 lb/in squared
= 760 mm Hg
= 29.92 in Hg
1 inch of mercury = 33.865 mb
1 millimeter of mercury = 1.3332 mb
1 pascal = 1N/m(squared)
Energy
1 calorie (cal) = 4.186 joules (J)
= 4.186 x 10 (to the power of 7) ergs
= 1.16 x 10 (to the power of -6) kilowatt-hour (kW h)
= 3.97 x 10 (to the power of -3) British thermal units (Btu)
= 1 langley-cm squared (ly cm squared)
Power
1 watt (W) = 1 J/s
= 14.3353 cal/min
= 0.239 cal/s
= 0.0569 Btu/min
1 cal/min = 0.06973
1 horse power (hp) = 746 W
Temperature
To convert degress Fahrenheit to degrees Celsius: Subtract 32 degrees from Fahrenheit, then divide by 1.8 To convert degrees Celsius to degrees Fahrenheit: Multiply Celsius by 1.8, then add 32 degrees To convert degrees Celsius to Kelvins (K): Add 273 to Celsius temperature, as K = Degrees Celsius + 273
Power per Unit Area
1 W/m2 = 0.00143 ly/min
= 2.065 ly/day
= 0.754 kly/yr
= 0.754 kly/yr
1 ly/min = 697.5 W/m(squared)
Powers of Ten
nano one-billionth = 10 (to the power of -9) = 0.000000001 micro one-millionth = 10 (to the power of -6) = 0.000001 milli one-thousandth = 10 (to the power of -3) = 0.001 centi one-hundredth = 10 (to the power of -2) = 0.01 deci one-tenth = 10 (to the power of -1) = 0.1 hecto one hundred = 10 (to the power of 2) = 100 kilo one thousand = 10 (to the power of 3) = 1000 mega one million = 10 (to the power of 6) = 1,000,000 giga one billion = 10 (to the power of 9) = 1,000,000,000
Some Properties of the Earth
Mass of the earth = 5.98 X 20 (to the power
of 24) kg
Mass of the oceans = 1.32 X 10 (to the power
of 21) kg
Mass of the earth's atmosphere = 5.29 X 10 (to the power
of 18) kg
Mean radius of the earth = 6371 km
Mean distance between earth and the sun = 149.7 X 10 (to the power
of 6) km
Mean gravitational acceleration
at earth's surface = 9.807 m/s(squared)
Speed of rotation of a surface point
on the earth's equator = 460 m/s
Angular velocity of the earth = 7.29 X 10 (to the power
of -5) /s