Earth s Atmosphere. Atmospheric Composition 78% Nitrogen 21% Oxygen 1 % Argon, 0.03% Carbon dioxide, Water. Recall the Electro-Magnetic (EM) Spectrum
|
|
- Bonnie Barber
- 5 years ago
- Views:
Transcription
1 Key Concepts: Lecture 11 Earth s Atmosphere and Greenhouse Effect Blackbody Radiation and Temperature Earth s Oceans Earth s Magnetic Field and Aurora The Green House Effect Temperature set by balancing energy in and energy out Energy In: From sunlight: 50% reaches the ground (the rest reflect back to space) Energy Out: Infrared light from the heated surface Without Atmosphere T(average)=-18C = 255 K With Atmosphere T(average)=+15C = 288 K Atmosphere is transparent to optical sunlight Water and Carbon Dioxide are opaque to infrared from surface - energy is trapped and thus heats the Earth s surface Note Kelvin Temperature scale: Absolute zero: 0K = -273 Celsius (C) 0C = +273K So -18C = =255K and +15C = =288K Earth s Atmosphere Atmospheric Composition 78% Nitrogen 21% Oxygen 1 % Argon, 0.03% Carbon dioxide, Water Protects the surface Blocks ultraviolet radiation from Sun Blocks cosmic rays and radiation Blocks small impacts Regulates Surface Temperature Clouds reflect sunlight Atmosphere traps and holds heat Atmospheric circulation moderates temperatures For Kelvin (K) temperature scale, see next slide Recall the Electro-Magnetic (EM) Spectrum Electro-magnetic waves of different wavelengths. Visible light is only a very small part of the whole EM spectrum.
2 Light is emitted from all objects depending on their temperature: Blackbody Radiation (see Ch. 2.4 in textbook) All objects with a temperature above absolute zero (-273C; -459F; 0K) emit light: the light waves carry energy. Temperature is a measure of how quickly the atoms in an object are moving and vibrating. Hotter objects emit more light energy because the motions of the electrons in their atoms are more violent: larger amplitude of waves in electric field. Hotter objects emit shorter wavelength light because the frequency of oscillation of electrons is higher. Question? Since the industrial revolution humans have been burning more trees and fossil fuel. This has caused the amount of CO 2 to increase in the atmosphere. What effect would you expect this to have on temperatures on Earth? Earth s temperature is about 300K 400 ppm was breached on May 9, Room temperature objects (i.e. T~300K) emit light that peaks in the infrared, with wavelengths ~10 microns. This is about 20 times longer than visible light and is not visible to our eyes.
3 Astro News Atmospheric Escape Properties of a gas behaves like a group of hard balls moving and colliding Speed depends on the temperature Light gas particles move faster When they collide with more massive particles they recoil at higher speeds The gravity of a planet holds the gas in More massive planets can hold lighter gasses Equal forces Larger accel The Primordial Atmosphere The original atmosphere - we expect this was mostly hydrogen and helium These are the most common elements in the universe Came from formation of Earth Atmosphere was lost Light atoms move faster than heavy Hydrogen and Helium have low mass Their velocity is above escape velocity (11km/s) Evolution of the Atmosphere Secondary atmosphere from volcanic outgassing Volcanoes emit CO 2, SO 2, H 2, N 2, water (H 2 O), methane (CH 4 ), ammonia (NH 3 ) Removing the carbon dioxide Dissolves in the oceans and is subducted Ends up in rocks 3 billion years ago mostly methane, H 2, SO 2 Formation of N 2 and CO 2 Ultraviolet sunlight breaks up methane and ammonia Nitrogen from ammonia - CO 2 from methane and water Hydrogen escapes into space
4 Oxygen (O 2 ) in the Atmosphere Very little primordial oxygen Almost no oxygen 2 billion years ago 1 billion years ago 2% of atmosphere was O million years ago sudden increase Origin of oxygen Biological activity started ~3.5 billion years ago Plants convert CO 2 into O 2 and trap carbon Dead biomass is trapped in the Earth and subducted -> oil Origin of the Ocean After formation Almost no liquid water Water trapped inside the Earth Water from inside the Earth Volcanoes emit gasses and steam Steam cools and condenses into water Oceans in 4.5 billion years at current rate Water also came from space Earth is continual hit by comets Comets contain a large amount of water ice Water can be removed into the Earth by subduction The Ocean Water covers a large fraction of the Earth 71% of surface area Average depth 4 km Helps regulate and moderate temperatures Important for evolution of atmosphere Must have liquid water for life Contains much of the life on Earth Question? If the Earth had no water and therefore life had never occurred, what would the Earth s atmosphere be like? If you were trying to locate a planet with life on it, what atmospheric constituents would you look for?
5 The Magnetic Field The solid core rotates faster than the surrounding liquid core. This Dynamo acts like a generator. The field is roughly aligned with the rotation axis. The field flips every years or so. Rotating, electrically conducting, i.e. metallic, liquid core is necessary to produce a strong magnetic field. Question If the Earth had no magnetic field. What would happen to the Aurora? The Sun emits a large number of charged particles from solar activity These particles are trapped in the Earth s magnetic field The field channels them near the pole When they hit the atmosphere it causes the air to glow The Aurora
Chapter 11 Review Clickers. The Cosmic Perspective Seventh Edition. Jovian Planet Systems Pearson Education, Inc.
Review Clickers The Cosmic Perspective Seventh Edition Jovian Planet Systems If Jupiter was the size of a basketball, Earth would be the size of a(n) a) bacterium. b) grain of rice. c) marble. d) orange.
More informationAT 350 EXAM #1 February 21, 2008
This exam covers Ahrens Chapters 1 and 2, plus related lecture notes Write the letter of the choice that best completes the statement or answers the question. b_ 1. The Earth s atmosphere is currently
More informationEarth as Planet. Earth s s Magnetic Field. The Earth s s Crust. Earth s s Interior
Earth as Planet Earth s s Interior The Earth is a medium size planet with a diameter of 12,756 kilometers (7926 miles) Composed primarily of iron, silicon, and oxygen Nearly circular orbit and just the
More informationThe Sun and Planets Lecture Notes 6.
The Sun and Planets Lecture Notes 6. Lecture 6 Venus 1 Spring Semester 2017 Prof Dr Ravit Helled Cover photo: Venus in true color (Courtesy of NASA) Venus Properties Venus is the second brightest natural
More informationClimate Regulation. - What stabilizes the climate - Greenhouse effect
Climate Regulation - What stabilizes the climate - Greenhouse effect Last time! Processes that shaped Earth: Volcanism, tectonics! How we retain atmospheric molecules ( escape speed )! A magnetic field
More information10/31/2017. Calculating the temperature of earth (The greenhouse effect) IR radiation. The electromagnetic spectrum
Calculating the temperature of earth (The greenhouse effect) EM radiation so far Spectrum of EM radiation emitted by many objects may be approximated by the blackbody spectrum Blackbody spectrum (plot
More informationThe Earth. Overall Structure of Earth
The Earth Why Study The Earth??? It s our home! Where did life come from, where is it going. To understand the other planets. Study of other planets will, in turn, help us understand the Earth. Overall
More informationEvolution of the Atmosphere
Evolution of the Atmosphere Anticipation Guide Oxygen is the main gas found in the atmosphere The current atmosphere is the same atmosphere that the Earth had when it formed Water vapor is a gas found
More informationShape and Size of the Earth
Planet Earth Shape and Size of the Earth Gravity is what gives Earth its spherical shape Only effective if the body is of a critical size Critical radius is about 350 km Shape and Size of the Earth Earth
More informationsee disks around new stars in Orion nebula where planets are probably being formed 3
Planet Formation contracting cloud forms stars swirling disk of material around forming star (H, He, C, O, heavier elements, molecules, dust ) form planets New born star heats up material, blows away solar
More informationTemperature Scales
TEMPERATURE is a measure of the internal heat energy of a substance. The molecules that make up all matter are in constant motion. By internal heat energy, we really mean this random molecular motion.
More informationASTRO 120 Sample Exam
ASTRO 120 Sample Exam 1) If a planet has a reasonably strong magnetic field, we know that a. It is made entirely of iron b. There is liquid nitrogen below the surface c. It can harbor life d. It has a
More informationChapter 10 Planetary Atmospheres Earth and the Other Terrestrial Worlds. What is an atmosphere? Planetary Atmospheres
Chapter 10 Planetary Atmospheres Earth and the Other Terrestrial Worlds What is an atmosphere? Planetary Atmospheres Pressure Composition Greenhouse effect Atmospheric structure Color of the sky 1 Atmospheres
More informationChapter 10 Planetary Atmospheres: Earth and the Other Terrestrial Worlds. What is an atmosphere? About 10 km thick
Chapter 10 Planetary Atmospheres: Earth and the Other Terrestrial Worlds What is an atmosphere? Sources of Gas Losses of Gas Thermal Escape Earth s Atmosphere About 10 km thick Consists mostly of molecular
More informationThe Cosmic Perspective Planetary Atmospheres: Earth and the Other Terrestrial Worlds
Chapter 10 Lecture The Cosmic Perspective Seventh Edition Planetary Atmospheres: Earth and the Other Terrestrial Worlds Planetary Atmospheres: Earth and the Other Terrestrial Worlds 10.1 Atmospheric Basics
More informationInner Planets (Part II)
Inner Planets (Part II) Sept. 18, 2002 1) Atmospheres 2) Greenhouse Effect 3) Mercury 4) Venus 5) Mars 6) Moon Announcements Due to technical difficulties, Monday s quiz doesn t count An extra credit problem
More informationToday. Events. Terrestrial Planet Atmospheres (continued) Homework DUE. Review next time? Exam next week
Today Terrestrial Planet Atmospheres (continued) Events Homework DUE Review next time? Exam next week Planetary Temperature A planet's surface temperature is determined by the balance between energy from
More information2010 Pearson Education, Inc.
Chapter 10 Planetary Atmospheres: Mars, Venus, Earth What is an atmosphere? An atmosphere is a (usually very thin) layer of gas that surrounds a world. How does the greenhouse effect warm a planet? No
More informationATS150 Global Climate Change Spring 2019 Candidate Questions for Exam #1
1. How old is the Earth? About how long ago did it form? 2. What are the two most common gases in the atmosphere? What percentage of the atmosphere s molecules are made of each gas? 3. About what fraction
More informationPlanetary Atmospheres (Chapter 10)
Planetary Atmospheres (Chapter 10) Based on Chapter 10 This material will be useful for understanding Chapters 11 and 13 on Jovian planet systems and Extrasolar planets Chapters 4, 5, and 8 on Momentum,
More informationChapter 10 Planetary Atmospheres Earth and the Other Terrestrial Worlds
Chapter 10 Planetary Atmospheres Earth and the Other Terrestrial Worlds What is an atmosphere? 10.1 Atmospheric Basics Our goals for learning:! What is an atmosphere?! How does the greenhouse effect warm
More informationChapter 7 Earth and the Terrestrial Worlds
Chapter 7 Earth and the Terrestrial Worlds Guest Lecture by Chris Kelso Please pick up one notecard of each color (5 total) Outline The Earth s Interior The Earth s Surface The Earth s Atmosphere Concept
More informationGeneral Comments about the Atmospheres of Terrestrial Planets
General Comments about the Atmospheres of Terrestrial Planets Mercury Very little atmosphere Contents: vaporized micrometeorites, solar wind Sky is black Venus Very thick (10% density of water), dense
More informationGreenhouse Effect. Julia Porter, Celia Hallan, Andrew Vrabel Miles, Gary DeFrance, and Amber Rose
Greenhouse Effect Julia Porter, Celia Hallan, Andrew Vrabel Miles, Gary DeFrance, and Amber Rose What is the Greenhouse Effect? The greenhouse effect is a natural occurrence caused by Earth's atmosphere
More informationThe Solar System. Earth as a Planet
The Solar System Earth as a Planet Earth s Interior Core: Highest density; nickel and iron Mantle: Moderate density; silicon, oxygen, etc. Crust: Lowest density; granite, basalt, etc. Differentiation Gravity
More informationOutline. Planetary Atmospheres. General Comments about the Atmospheres of Terrestrial Planets. General Comments, continued
Outline Planetary Atmospheres Chapter 10 General comments about terrestrial planet atmospheres Atmospheric structure & the generic atmosphere Greenhouse effect Magnetosphere & the aurora Weather & climate
More informationChapter 10 Planetary Atmospheres Earth and the Other Terrestrial Worlds
Chapter 10 Planetary Atmospheres Earth and the Other Terrestrial Worlds 10.1 Atmospheric Basics Our goals for learning: What is an atmosphere? How does the greenhouse effect warm a planet? Why do atmospheric
More informationAstro 1010 Planetary Astronomy Sample Questions for Exam 4
Astro 1010 Planetary Astronomy Sample Questions for Exam 4 Chapter 8 1. Which of the following processes is not important in shaping the surface of terrestrial planets? a) Impact cratering b) Tectonism
More informationInvestigating Planets Name: Block: E1:R6
FYI: Planetary Temperatures and Atmospheres Read FYI: A Planet s Temperature, The Importance of an Atmosphere, and The Greenhouse Effect As you read answer the following questions about the readings: Word/Term
More informationPlanetary Temperatures
Planetary Temperatures How does Sunlight heat a planet with no atmosphere? This is similar to our dust grain heating problem First pass: Consider a planet of radius a at a distance R from a star of luminosity
More informationChapter 10 Planetary Atmospheres: Earth and the Other Terrestrial Worlds. What is an atmosphere? Earth s Atmosphere. Atmospheric Pressure
Chapter 10 Planetary Atmospheres: Earth and the Other Terrestrial Worlds 10.1 Atmospheric Basics Our goals for learning What is an atmosphere? How does the greenhouse effect warm a planet? Why do atmospheric
More informationChapter 10 Planetary Atmospheres: Earth and the Other Terrestrial Worlds
Chapter 10 Planetary Atmospheres: Earth and the Other Terrestrial Worlds 10.1 Atmospheric Basics Our goals for learning What is an atmosphere? How does the greenhouse effect warm a planet? Why do atmospheric
More informationAST 105 Intro Astronomy The Solar System
AST 105 Intro Astronomy The Solar System STRUCTURE OF A PLANET S ATMOSPHERE If you remember this. X-rays Ultraviolet Heating & Destruction Heating & Destruction Visible Infrared Transmission and Scattering
More informationTerrestrial Planets: The Earth as a Planet
Terrestrial Planets: The Earth as a Planet In today s class, we want to look at those characteristics of the Earth that are also important in our understanding of the other terrestrial planets. This is
More informationLecture 2 Global and Zonal-mean Energy Balance
Lecture 2 Global and Zonal-mean Energy Balance A zero-dimensional view of the planet s energy balance RADIATIVE BALANCE Roughly 70% of the radiation received from the Sun at the top of Earth s atmosphere
More informationATOC 3500/CHEM 3151 Air Pollution Chemistry Lecture 1
ATOC 3500/CHEM 3151 Air Pollution Chemistry Lecture 1 Note Page numbers refer to Daniel Jacob s online textbook: http://acmg.seas.harvard.edu/publications/ jacobbook/index.html Atmos = vapor + sphaira
More informationChapter 10 Planetary Atmospheres: Earth and the Other Terrestrial Worlds Pearson Education, Inc.
Chapter 10 Planetary Atmospheres: Earth and the Other Terrestrial Worlds 10.1 Atmospheric Basics Our goals for learning: What is an atmosphere? How does the greenhouse effect warm a planet? Why do atmospheric
More informationESS15 Lecture 7. The Greenhouse effect.
ESS15 Lecture 7 The Greenhouse effect. Housekeeping. First midterm is in one week. Open book, open notes. Covers material through end of Friday s lecture Including today s lecture (greenhouse effect) And
More informationCRITICAL THINKING ACTIVITY: INTERPRETING THE GOLDILOCKS EFFECT (1)
Student Sheet 1 CRITICAL THINKING ACTIVITY: INTERPRETING THE GOLDILOCKS EFFECT (1) The Goldilocks Effect is derived from a children's story "The Three Bears" in which a little girl named Goldilocks finds
More informationElectromagnetic Radiation.
Electromagnetic Radiation http://apod.nasa.gov/apod/astropix.html CLASSICALLY -- ELECTROMAGNETIC RADIATION Classically, an electromagnetic wave can be viewed as a self-sustaining wave of electric and magnetic
More informationMidterm 2 Scores. Class average: 40/50. # of students. Exam score
Global Warming Midterm 2 Scores Class average: 40/50 # of students Exam score Learning Objectives (LO) Lecture 19: Global Warming and Energy Use Read: Chapter 14 Homework due Thursday Nov. 5 What we ll
More informationA Warm Up Exercise. A Warm Up Exercise. A Warm Up Exercise. A Warm Up Exercise. The Solar Flux
When you compare gamma ray photons with photons of radio waves, which of the following is true? Gamma rays have a shorter wavelength and less energy Gamma rays have a shorter wavelength and same energy
More informationPHYS:1200 LECTURE 18 THERMODYNAMICS (3)
1 PHYS:1200 LECTURE 18 THERMODYNAMICS (3) This lecture presents a more detailed discussion of heat flow by radiation and its importance in the physics of the atmosphere. We will discuss some important
More informationLecture 4: Global Energy Balance
Lecture : Global Energy Balance S/ * (1-A) T A T S T A Blackbody Radiation Layer Model Greenhouse Effect Global Energy Balance terrestrial radiation cooling Solar radiation warming Global Temperature atmosphere
More informationLecture 4: Global Energy Balance. Global Energy Balance. Solar Flux and Flux Density. Blackbody Radiation Layer Model.
Lecture : Global Energy Balance Global Energy Balance S/ * (1-A) terrestrial radiation cooling Solar radiation warming T S Global Temperature Blackbody Radiation ocean land Layer Model energy, water, and
More informationChapter 7 Earth Pearson Education, Inc.
Chapter 7 Earth Units of Chapter 7 7.1 Overall Structure of Planet Earth 7.2 Earth s Atmosphere Why Is the Sky Blue? The Greenhouse Effect and Global Warming 7.3 Earth s Interior Radioactive Dating Units
More informationWHAT WE KNOW. Scientists observe that every object in the universe is moving away from each other. Objects furthest away are moving the fastest. So..
ASTRONOMY THE BIG BANG THEORY WHAT WE KNOW Scientists observe that every object in the universe is moving away from each other. Objects furthest away are moving the fastest. So.. WHAT DOES THIS MEAN? If
More informationThe Layered Atmosphere:
The Layered Atmosphere: The Earth s Atmosphere Like all the planets, the Earth s atmosphere is highly distinct. What makes it different from the other terrestrial planets? Comparative Planetology The basic
More informationEARTH TAKES SHAPE 1. Define all vocabulary words. Crust: The thin and solid outermost layer of the Earth above the mantle. Mantle: The layer of rock
EARTH TAKES SHAPE 1. Define all vocabulary words. Crust: The thin and solid outermost layer of the Earth above the mantle. Mantle: The layer of rock between the Earth s crust and core Core: The central
More informationReview: Properties of a wave
Radiation travels as waves. Waves carry information and energy. Review: Properties of a wave wavelength (λ) crest amplitude (A) trough velocity (v) λ is a distance, so its units are m, cm, or mm, etc.
More informationLecture 20. Origin of the atmosphere (Chap. 10) The carbon cycle and long-term climate (Chap. 8 of the textbook: p )
Lecture 20 Origin of the atmosphere (Chap. 10) The carbon cycle and long-term climate (Chap. 8 of the textbook: p.158-170) end of last ice-age; begin civilization beginning of modern era of ice-ages asteroid
More informationEarth s Atmosphere. Describing Earth s Atmosphere
CHAPTER 4 Earth s Atmosphere LESSON 1 Describing Earth s Atmosphere What do you think? Read the two statements below and decide whether you agree or disagree with them. Place an A in the Before column
More informationLIFE CYCLE OF A STAR
LIFE CYCLE OF A STAR First stage = Protostar PROTOSTAR Cloud of gas and dust many light-years across Gravity tries to pull the materials together Eventually, at the center of the ball of dust and gas,
More informationSection 2: The Atmosphere
Section 2: The Atmosphere Preview Classroom Catalyst Objectives The Atmosphere Composition of the Atmosphere Air Pressure Layers of the Atmosphere The Troposphere Section 2: The Atmosphere Preview, continued
More informationAstronomy 103: First Exam
Name: Astronomy 103: First Exam Stephen Lepp October 27, 2010 Each question is worth 2 points. Write your name on this exam and on the scantron. 1 Short Answer A. What is the largest of the terrestrial
More informationDirected Reading. Section: Solar Energy and the Atmosphere RADIATION. identical point on the next wave. waves
Skills Worksheet Directed Reading Section: Solar Energy and the Atmosphere 1. How is Earth s atmosphere heated? 2. Name the two primary sources of heat in the atmosphere. RADIATION In the space provided,
More informationScience Practice Astronomy (AstronomyJSuber)
Name: Date: 1. The pull of gravity on Earth is a direct result of the A. mass of Earth. B. magnetic field of Earth. C. rotation of Earth on its axis. D. weight of Earth's atmosphere. This online assessment
More informationChapter 2. Heating Earth's Surface & Atmosphere
Chapter 2 Heating Earth's Surface & Atmosphere Topics Earth-Sun Relationships Energy, Heat and Temperature Mechanisms of Heat Transfer What happens to Incoming Solar Radiation? Radiation Emitted by the
More informationThe Cosmic Perspective Planetary Atmospheres: Earth and the Other Terrestrial Worlds
Chapter 10 Lecture The Cosmic Perspective Seventh Edition Planetary Atmospheres: Earth and the Other Terrestrial Worlds 2014 Pearson Education, Inc. Planetary Atmospheres: Earth and the Other Terrestrial
More informationWednesday, September 8, 2010 Infrared Trapping the Greenhouse Effect
Wednesday, September 8, 2010 Infrared Trapping the Greenhouse Effect Goals to look at the properties of materials that make them interact with thermal (i.e., infrared, or IR) radiation (absorbing and reemitting
More informationASTR Midterm 1 Phil Armitage, Bruce Ferguson
ASTR 1120-001 Midterm 1 Phil Armitage, Bruce Ferguson FIRST MID-TERM EXAM FEBRUARY 16 th 2006: Closed books and notes, 1 hour. Please PRINT your name and student ID on the places provided on the scan sheet.
More informationEvolution of Earth Environments Bio-Geo-Chemical Cycling
Evolution of Earth Environments Bio-Geo-Chemical Cycling Evolution of the Earliest Atmospheres of Mars and Earth Volcanic Outgassing Evolving to Equilibrium Atmosphere To Atmosphere Lost to space (Abundant)
More informationThe greenhouse effect
The greenhouse effect Visible light arrives About half reflected, half is absorbed by the ground. This absorbed energy is then reradiated, but NOT in the visible (would just go out again anyway); in the
More informationOur Sun. The centre of our solar system
Our Sun The centre of our solar system Nicolaus Copernicus Our Sun The sun represents 99.86% of the mass in our solar system. It is ¾ hydrogen and ¼ helium. More than 1 million Earths can fit inside the
More informationThe Atmosphere is the layer of air surrounding the Earth
The Atmosphere is the layer of air surrounding the Earth The gases in the atmosphere are important because: They block out dangerous rays from the sun, such as UV rays They stabilize the temperature across
More informationNSCI 314 LIFE IN THE COSMOS
NSCI 314 LIFE IN THE COSMOS 2 BASIC ASTRONOMY, AND STARS AND THEIR EVOLUTION Dr. Karen Kolehmainen Department of Physics CSUSB COURSE WEBPAGE: http://physics.csusb.edu/~karen MOTIONS IN THE SOLAR SYSTEM
More informationEarth! Objectives: Interior and plate tectonics Atmosphere and greenhouse effect
Earth! Objectives: Interior and plate tectonics Atmosphere and greenhouse effect Earth Fun Facts 1. Only body with liquid water on the surface. 2. Most massive terrestrial body in solar system 3. Only
More informationBernoulli s Principle. Application: Lift. Bernoulli s Principle. Main Points 3/13/15. Demo: Blowing on a sheet of paper
Bernoulli s Principle Demo: Blowing on a sheet of paper Where the speed of a fluid increases, internal pressure in the fluid decreases. Due to continuous flow of a fluid: what goes in must come out! Fluid
More informationAstronomy Chapter 12 Review
Astronomy Chapter 12 Review Approximately how massive is the Sun as compared to the Earth? A. 100 times B. 300 times C. 3000 times D. 300,000 times E. One million times Approximately how massive is the
More information2/22/ Atmospheric Characteristics
17.1 Atmospheric Characteristics Atmosphere: the gaseous layer that surrounds the Earth I. In the past, gases came from volcanic eruptions A. Water vapor was a major component of outgassing B. Other gases
More informationEarth s Atmosphere. Energy Transfer in the Atmosphere. 3. All the energy from the Sun reaches Earth s surface.
CHAPTER 11 LESSON 2 Earth s Atmosphere Energy Transfer in the Atmosphere Key Concepts How does energy transfer from the Sun to Earth and to the atmosphere? How are air circulation patterns within the atmosphere
More informationOur Sun. & the Planets. Sun and Planets.notebook. October 18, Our Sun (a quick review) Hydrogen is the main fuel source
Sun and Planets.notebook October 18, 2016 Our Sun Our Sun (a quick review) Average size main sequence star Hydrogen is the main fuel source In about 5 billion years it will become a & the Planets red giant
More informationThe Atmosphere. Composition of the Atmosphere. Section 2
The Atmosphere Earth is surrounded by a mixture of gases known as the Nitrogen, oxygen, carbon dioxide, and other gases are all parts of this mixture. Earth s atmosphere changes constantly as these gases
More informationAstronomy. physics.wm.edu/~hancock/171/ A. Dayle Hancock. Small 239. Office hours: MTWR 10-11am
Astronomy A. Dayle Hancock adhancock@wm.edu Small 239 Office hours: MTWR 10-11am The Earth What Powers the Earth's atmosphere, oceans and land The Earth's Interior Continental movement. The Earth's protection
More informationMars & Venus: Just Down the Street
Mars & Venus: Just Down the Street Of course, Mars & Venus are our nearest planetary neighbors and are more similar to Earth than any other bodies in the Solar System. Your author does an excellent job
More informationLecture 3. - Global Sulfur, Nitrogen, Carbon Cycles - Short-term vs. Long-term carbon cycle - CO 2 & Temperature: Last 100,000+ years
Lecture 3 - Global Sulfur, Nitrogen, Carbon Cycles - Short-term vs. Long-term carbon cycle - CO 2 & Temperature: Last 100,000+ years METR 113/ENVS 113 Spring Semester 2011 March 1, 2011 Suggested Reading
More informationChapter 4 Lesson 1: Describing Earth s Atmosphere
Chapter 4 Lesson 1: Describing Earth s Atmosphere Vocabulary Importance of Earth s Atmosphere The atmosphere is a thin layer of gases surrounding Earth. o Contains the oxygen and water needed for life.
More informationClimate Change Lecture Notes
Climate Change Lecture Notes (Topic 12A) page 1 Climate Change Lecture Notes Learning Outcomes for the Climate Change Unit 1. Students can list observations which suggest that the world is warming, and
More informationTHE GREENHOUSE EFFECT
ASTRONOMY READER THE GREENHOUSE EFFECT 35.1 THE GREENHOUSE EFFECT Overview Planets are heated by light from the Sun. Planets cool off by giving off an invisible kind of light, longwave infrared light.
More informationRecall: The Importance of Light
Key Concepts: Lecture 19: Light Light: wave-like behavior Light: particle-like behavior Light: Interaction with matter - Kirchoff s Laws The Wave Nature of Electro-Magnetic Radiation Visible light is just
More informationClimate & Earth System Science. Introduction to Meteorology & Climate CHAPTER 1 LECTURE 1. Question: Introduction to the Atmosphere
Climate & Earth System Science Introduction to Meteorology & Climate MAPH 10050 Peter Lynch Peter Lynch Meteorology & Climate Centre School of Mathematical Sciences University College Dublin Meteorology
More informationGrades 9-12: Earth Sciences
Grades 9-12: Earth Sciences Earth Sciences...1 Earth s Place in the Universe...1 Dynamic Earth Processes...2 Energy in the Earth System...2 Biogeochemical cycles...4 Structure and Composition of the Atmosphere...4
More informationThe Sun. SESAME Astronomy Week 4. Thursday, February 10, 2011
The Sun SESAME Astronomy Week 4 1 1 Our star Not special: typical mass, typical temperature, typical size, typical planetary system about halfway through its 10 billion year lifespan 2 2 Vital statistics
More informationPeriod 13 Solutions: Earth as an Energy System
Period 13 Solutions: Earth as an Energy System 13.1 The Earth-Sun System 1) Energy from the sun Observe the models of the Earth, Moon, and Sun in the room. a) Imagine that the distance between the Earth
More informationUnit 3 Review Guide: Atmosphere
Unit 3 Review Guide: Atmosphere Atmosphere: A thin layer of gases that forms a protective covering around the Earth. Photosynthesis: Process where plants take in carbon dioxide and release oxygen. Trace
More informationLecture 3: Global Energy Cycle
Lecture 3: Global Energy Cycle Planetary energy balance Greenhouse Effect Vertical energy balance Latitudinal energy balance Seasonal and diurnal cycles Solar Flux and Flux Density Solar Luminosity (L)
More informationChapter 19 The Origin of the Solar System
Chapter 19 The Origin of the Solar System Early Hypotheses catastrophic hypotheses, e.g., passing star hypothesis: Star passing closely to the the sun tore material out of the sun, from which planets could
More informationEnergy, Temperature, & Heat. Energy, Temperature, & Heat. Temperature Scales 1/17/11
Energy, Temperature, & Heat Energy is the ability to do work (push, pull, lift) on some form of matter. Chapter 2 Potential energy is the potential for work (mass x gravity x height) Kinetic energy is
More informationOcean s Influence on Weather and Climate
Earth is often called the Blue Planet because so much of its surface (about 71%) is covered by water. Of all the water on Earth, about 96.5%, is held in the world s oceans. As you can imagine, these oceans
More informationLight & Atoms. Electromagnetic [EM] Waves. Light and several other forms of radiation are called electromagnetic waves or electromagnetic radiation.
Light & Atoms Electromagnetic [EM] Waves Light and several other forms of radiation are called electromagnetic waves or electromagnetic radiation. These have both and electric part and a magnetic part
More informationOrigin of Earth s Water When Earth first formed it was so hot that the original water would be lost to space Water added later by comets and/or
Origin of Earth s Water When Earth first formed it was so hot that the original water would be lost to space Water added later by comets and/or asteroids?? Some water (H 2 +O) formed in Protoplanetary
More informationEarth. Interior Crust Hydrosphere Atmosphere Magnetosphere Tides
Earth Interior Crust Hydrosphere Atmosphere Magnetosphere Tides Semi-major Axis 1 A.U. Inclination 0 Orbital period 1.000 tropical year Orbital eccentricity 0.017 Rotational period 23 h 56 min 4.1 s Tilt
More informationPlanetary Atmospheres: Earth and the Other Terrestrial Worlds Pearson Education, Inc.
Planetary Atmospheres: Earth and the Other Terrestrial Worlds 10.1 Atmospheric Basics Our goals for learning: What is an atmosphere? How does the greenhouse effect warm a planet? Why do atmospheric properties
More informationChapter 5 Light and Matter: Reading Messages from the Cosmos. 5.1 Light in Everyday Life. How do we experience light?
Chapter 5 Light and Matter: Reading Messages from the Cosmos 5.1 Light in Everyday Life Our goals for learning: How do we experience light? How do light and matter interact? How do we experience light?
More informationEvolution of the Atmosphere: The Biological Connection
Evolution of the Atmosphere: The Biological Connection The Earth s Four Spheres How It All Began Or At Least How We Think It Began O.k. it s a good guess Egg of energy The Big Bang splattered radiation
More informationLecture 5: Greenhouse Effect
/30/2018 Lecture 5: Greenhouse Effect Global Energy Balance S/ * (1-A) terrestrial radiation cooling Solar radiation warming T S Global Temperature atmosphere Wien s Law Shortwave and Longwave Radiation
More informationLight and Matter: Reading Messages from the Cosmos. White light is made up of many different colors. Interactions of Light with Matter
Chapter 5 Lecture The Cosmic Perspective Light and Matter: Reading Messages from the Cosmos 5.1 Light in Everyday Life Our goals for learning: How do we experience light? How do light and matter interact?
More informationATM S 111: Global Warming Solar Radiation. Jennifer Fletcher Day 2: June
ATM S 111: Global Warming Solar Radiation Jennifer Fletcher Day 2: June 22 2010 Yesterday We Asked What factors influence climate at a given place? Sunshine (and latitude) Topography/mountains Proximity
More information1 Characteristics of the Atmosphere
CHAPTER 1 1 Characteristics of the Atmosphere SECTION The Atmosphere BEFORE YOU READ After you read this section, you should be able to answer these questions: What is Earth s atmosphere made of? How do
More informationPlanet Earth. Our Home APOD
Planet Earth Our Home APOD 1 Earth a highly evolved planet = altered dramatically since formation, due to flow of energy from interior to surface 2 Planet Earth Facts diameter (equator) 12,756 km radius
More information