Introduction Topics (Units, - PowerPoint Presentation

Slide1

Introduction Topics (Units, Isoplething, Radiation)Slide2

Kelvin scale should be used in all formulas and calculations!Kelvin = Celsius + 273.15

Celsius = (5/9)*(Fahrenheit – 32)

Fahrenheit = [(9/5)*Celsius] + 32

Temperature ConversionsSlide3

Example: Convert 85oF to the Kelvin Scale.

Celsius = (5/9)*(Fahrenheit – 32

)

= (5/9)*(85 – 32) = 29.4oC Kelvin = Celsius + 273.15 = 29.4 + 273.15 = 302.6 K

Temperature Conversions (

cont

)Slide4

Contouring to visualize spatial data.

IsoplethingSlide5

Isoplething ExampleSlide6

Clouds form where air rises and dissipate where air sinks.Air is forced to rise when blown into mountains and sinks after cresting the peak.

With a westerly wind, where do we expect to see the most rain?

Inferences from

IsloplethsSlide7

The higher the temperature of an object, the more energy it emits!Quantified by the Stefan-Boltzmann Law:

Energy Emitted =

σ * Temperature4

σ = 0.0000000567 W/m2K4Everything with a temperature emits radiation.Radiation BasicsSlide8

A hot cup of coffee (35o

C) is sitting outside. It absorbs 400 W/m

2 of energy from the sun. Is coffee getting warmer, getting colder, or keeping a constant temperature.

Kelvin = Celsius + 273.15 = 35 + 273.15 = 308 K Energy Emitted = σ * Temperature4 = (0.0000000567 W/m2K4

) * (308 K)

4

=

510 W/m

2

So, what’s happening to the coffee?

Stefan Boltzmann ExampleSlide9

1.1 (a, b) 1.4

1.7 (a, b, c)

1.10 (a, c, d, e)

2.1 (a, b, c)

2.2 2.6 Lab Assignment