Weather and Climate- Day 2 The Sun’s Energy Ch. 17

Objectives Describe the movement of _________ due to differences in ____________________ ________________ the absorbance and reflectance of the sun’s energy on Earth ____________________temperature variations over ________________________

Heating of the Atmosphere Heat vs. temperature ___________ is the ________________ transferred from one object to another due to differences in __________________. Bottom line: ___________________________ _____________________________________ _ _____________________________________ _

Heating of the Atmosphere The ____________ of the atmosphere comes from ______________________ The solar energy is transferred to Earth through ____________ When radiation hits an object, ____________ things happen – 1. some radiant energy is ____________ – 2. some radiant energy is ____________________ ____ substances like water and air – 3. some radiant energy _________________ _______ the object without being absorbed or transmitted

Heating of the Atmosphere Take a look at Figure 12 on page 486 to answer the following questions 1.How much of the Sun’s energy that reaches Earth’s atmosphere is reflected back into space? ( add together the amount that is backscattered to space, the amount reflected from clouds, and the amount reflected by the land-sea surface ) 2.How much of the Sun’s energy is absorbed by Earth’s atmosphere and clouds? 3.How much of the Sun’s energy is absorbed by the land and sea?

Heating of the Atmosphere If we did not have gases to absorb solar radiation, Earth would not be a place where we could live This heating of the lower layer of the atmosphere from radiation absorbed by heat absorbing gases is called the ______________________________ … so just like plants grow better in a greenhouse, all life on Earth is able to flourish because of the greenhouse effect… but too much heating up can have problems too…

Heating of the Atmosphere The temperatures we experience are due to the _________________________of the atmosphere _____________and _____________________ ____________ ___. Land _______________________ ________ _____ than water Land also reaches _________________________________ than water The temperature of the land and water influences the temperature of the ________________________ This explains why ___________________ experience ____________ temperature variations than cities near large _______________________

Think about it! City A is located on the Outer Banks of NC and City B is located inland. Which city would experience greater variations in temperature and why?

Check-in Questions 1.What causes the transfer of energy in the from of heat from one object to another? 2.What is the greenhouse effect? How does it affect life on Earth? 3.Complete this chart 1.Complete the following sentence: Land heats ______________ than water. 2.As a result of what you said in #4, where are temperature variations greater? (over land or over water) Amount of the Sun’s energy that reaches Earth’s atmosphere that is reflected back into space Amount of the Sun’s energy absorbed by Earth’s atmosphere and clouds Amount of the Sun’s energy absorbed by the land and sea