Basics of Earths Energy Budget
What is Earths Energy Budget?
The balance between radiant energy that will reach Earth by the sun and the energy that goes back to space
Where does earths energy come from?
The Sun
What are greenhouse gases?
Greenhouse Gases absorb infrared radiation and trap it in the atmosphere
What are seasons?
Different parts of the year with different climates
Climate change describes a difference in average weather conditions including tempereature, rainfall and
What percentage of energy is reflected by clouds, earths land, snow, ice surfaces etc
30%
Types of heat transfers?
Conduction, Convection and Radiation!
Types of Greenhouse gases?
Carbon Dioxide, Methane, Nitrous Oxide etc
What causes seasons?
Earths tilted axis causes the seasons and how much sunlight that part of the Earth is getting
What are some effects of Climate Change on Earth?
Rising sea levels, Shrinking Mountain Glaciers, Ice melting as a faster rate in Antarctica, Greenland land the Arctic. Also changes in plant and flower blooming times
Unbalance in earth energy budget causes what?
Earths Temperature will eventually increase or decrease to fix the inbalance.
Whats Radiation?
Heat transfer of electromagnetic waves without physical contact
What are the greenhouse gases effect on the planet?
Rising concentrating levels of greenhouse gases cause a rise in a average surface temperature of earth.
Earth is tilted at what angle?
23.5 degrees
What are causes of Climate Change
The greenhouse effect, when gases are trapped and keep the Earth warmer. Human activities including burning of fossil fuels.
What are causes an imbalance of earths energy budget?
Natural phenomena example is volcano, or man made activities
Whats Conduction?
Transfer of energy through direct contact
Where do greenhouse gases come from and examples?
Most of the emissions come from humans. The burning of fossil fuels.
If its summer in the Northern Hemisphere what season is it in the Southern Hemisphere?
Winter
Why is climate change important to know about?
Human activities cause greenhouse gases. We can effect how Earths oceans, land, air, the plants, the animals and the energy from the Sun all work together.
Energy from earths surface + energy from the atmosphere =? (per square meter)
504 watts per square meter
What Convection?
Energy transfer within fluids
Why are greenhouse gases important?
Greenhouse gases keep our planet livable by holding to some of earths energy.
Earths (perihelion) point closest to the sun, is how many miles from the sun ?
91,400,000 miles from the sun
On average, how much has the global air temperature gone up near the Earths surface the past 100 years?
2 degrees Fahrenheit