Currents & Gyres Notes
|
|
- Edith Octavia Newton
- 5 years ago
- Views:
Transcription
1 Currents & Gyres Notes
2 Current A river of water flowing in the ocean. 2 Types of Currents Surface Currents wind-driven currents that occur in the top 100m or less Deep Currents density-driven currents that creep along the bottom of the ocean.
3 Surface Currents Surface currents spread heat from the tropics & cold water from the poles.
4 Ben Franklin & the Gulf Stream In the 1750s, when Postmaster for the Colonies, Ben Franklin & Capt. Timothy Folger created the 1st map of the Gulf Stream to help speed up delivery of mail to & from Britain.
5 Matthew Fontaine Maury Did the first systematic study of currents based on logbooks from the US Navy.
6 Winds and Surface Water Rule: the Coriolis effect is more pronounced the slower an object moves. 1. Wind blows only on the surface water layer (but it moves slower than the wind). 2. This layer of water will drag the underlying water, but w/ less force (even slower). 3. This proceeds lower & lower (each layer is even slower). 4. This is an Ekman Spiral.
7 What is this Coriolis Effect? Click here to find out.
8 Ekman Spiral A spiraling pattern of water direction caused b/c slower substances are more greatly influenced by the Coriolis effect.
9 Ekman Spiral Nansen & other Arctic explorers noticed that ice & surface currents move at an angle to the wind direction. Ekman first explained the mathematics of this phenomena in 1905, & why it decreases with depth to produce the spiral pattern.
10 The overall movement of a current is 90 to the right or left of the global wind direction. Ekman Transport
11 Surface Current Formation
12 Gyres A circular pattern formed by the connection of several surface currents. Northern Hemisphere 2 gyres - clockwise rotation Southern Hemisphere 3 gyres counter-clockwise rotation Gyres are named for the ocean & hemisphere they are found in.
13 Parts of a Gyre Western Boundary Currents 1. Form on the western sides of oceans. 2. Fast, deep, narrow currents that form eddies. 3. Warm currents b/c they flow from the equator. 5 WBCs: Gulf Stream largest Japan Current (aka Kuroshio c.) Brazil Current Agulhas Current East Australian Current
14 Parts of a Gyre Eastern Boundary Currents 1. Form on the eastern sides of oceans. 2. Slow, shallow, broad currents with no eddies. 3. Cold currents b/c they flow from the poles. 5 EBCs: Canary Current California Current Peru Current Benguela Current West Australian Current
15 Comparing Currents Are all currents similar? NO! Eastern or Western side of ocean Warm or Cold Fast or Slow Deep or Shallow Wide or Narrow High latitudes toward Low Latitudes or vice versa
16 Why are some currents FAST and other currents SLOW? What is the difference between Eastern AND Western Boundary Currents?
17 What happens when you push in on a plastic container of water?
18 The container moves first, and water moves a fraction of a second later.
19 Water sloshes up again the left-hand side, creating a pile
20 As Earth rotates the continents smack into the oceans Earth s rotation Asia, Australia hit the Pacific Ocean The Americas hit the Atlantic Ocean
21 A West to East Cross Section of the mound of water Continents crash into the mound of water. The mound is asymmetrical. This leads to Western I ntensification water piles up on the coast of North America West East North America 1m Only ~ 1m high, but that s enough to create BI G differences in the currents.
22 Western I ntensification West East North America Gravity is trying to pull this down and out to flatten the ocean. The flow is constricted on the WEST side and spread out on the EAST
23 West Western Intensification Gulf Stream (Flowing into screen) Narrow and fast East North America Canary Current (Flowing OUT of screen) diffuse, slow Think about constricting flow out of a garden hose by covering half the opening with your thumb. The constricted flow moves FASTER. WHY? SAME AMOUNT of water forced to move through smaller opening
24
25 Currents going from the warm water currents. Current going from the cold water currents.
26 Gyres Deflected by the continents and driven by surface winds, they bend and create large current loops called circulation gyres. The centers often collect floating mats of seaweed and garbage. (Sargasso Sea and the N. Pacific gyre garbage patch.)
27 Sargasso Sea Sea of Weeds
28 Sargasso Sea home to many
29 North Atlantic Garbage Patch Q
30 Currents Lab N. Pacific N. Equatorial S. Equatorial N. Equatorial Equatorial Counter S. Equatorial Equatorial S. Equatorial West Wind Drift West Wind Drift West Wind Drift
31 Density-Driven Ocean Circulation Cold, dense water sinks below warmer water. Salty, dense water sinks below less salty water. Just like air, water will move to areas of lesser concentration. There are different density layers found in the ocean.
32 Water Masses Bodies of water that are fairly uniform in their densities. Identifiable from their temperature, salinity and other characteristics.
33 Mixed/Surface Layer The top few hundred meters. Here the water is mixed around by wind, waves & surface currents. Has a relatively uniform temp. & salinity throughout.
34 Intermediate Layer Immediately below the mixed layer. It is more dense than the mixed layer due to temp. and/or salinity.
35 North Atlantic Deep Water (NADW) From below the intermediate water to the ocean bottom. Very cold water w/ higher salinity than the above layers.
36 Antarctic Bottom Water (AABW) In contact w/ the seafloor. Extremely cold water. Typically nutrient rich. Can travel around the globe for years.
37 Great Ocean Conveyor Belt Combination of deep ocean currents & surface currents
38 A global "conveyor belt" is set in motion when cold water forms in the Northern Atlantic, sinks, moves south, and circulates around Antarctica, and then moves northward to the Indian, Pacific, and Atlantic basins. It can take a thousand years for water from the North Atlantic to find its way into the North Pacific.
39 Significance of deep currents Form upwellings: the drawing up of cold water from deeper regions to shallow waters throughout the Ocean Result: all ocean nutrients don t end up settling on the bottom: surface organisms can benefit from decomposers, cycle nutrients and sustain life. So what is downwelling?
40 WIND DRIVEN 0m DENSITY DRIVEN sunlight Upwelling Surface Mix Layer Deep Water Layer Downwelling m m 4000m
41 Upwelling brings NUTRIENTS (from DECAYED organic matter) back up to the surface. Upwelling & Downwelling Convergence: water masses collide and sink downwelling Divergence: Surface waters move APART. Deep water rises up to fill the gap upwelling
42 Density Stratification Thermocline Heat Halocline Salinity Pycnocline Density Pycnoclines can prevent mixing between layers
43 3LJlZ8 Scripps Video - Pycnoclines
44 REVIEW Winds move water a net of 90 degrees to right of the wind (surface 45 degrees to rt) Ekman spiral top 600ft water moved by wind in spiral shape as water pulls water Where water converges due to wind = downwellings Where water diverges due to wind = upwellings
45 REVIEW Upwellings and Downwellings necessary to mix oceans Bring cold, nutrient rich waters back to surface Take warm, nutrient depleted waters down to ocean bottom Currents N and S of equator tend to move in circular patterns called GYRES
Role of the oceans in the climate system
Role of the oceans in the climate system heat exchange and transport hydrological cycle and air-sea exchange of moisture wind, currents, and upwelling gas exchange and carbon cycle Heat transport Two Primary
More informationIntroduction to Oceanography OCE 1001
Introduction to Oceanography OCE 1001 Lecture Notes Chantale Bégin & Jessica Fry Version 2.1 10. Ocean Circulation (Trujillo, Chapter 7) Major ocean currents are stable and predictable; they have been
More informationEARTH, PLANETARY, & SPACE SCIENCES 15 INTRODUCTION TO OCEANOGRAPHY. LABORATORY SESSION #6 Fall Ocean Circulation
EARTH, PLANETARY, & SPACE SCIENCES 15 INTRODUCTION TO OCEANOGRAPHY LABORATORY SESSION #6 Fall 2017 Ocean Circulation The focus of the Lab this week is circulation of the ocean and atmosphere. Here, you
More informationCHAPTER 7 Ocean Circulation
1 2 3 4 5 6 7 8 9 10 11 12 13 14 CHAPTER 7 Ocean Circulation Words Ocean currents Moving seawater Surface ocean currents Transfer heat from warmer to cooler areas Similar to pattern of major wind belts
More informationOcean Circulation. Si Hui Lee and Frances Wen. You can access ME at
Ocean Circulation Si Hui Lee and Frances Wen You can access ME at http://tinyurl.com/oceancirculation Earth - the blue planet - 71% area covered by the oceans - 3/4 of ocean area between 3000-6000m deep
More informationChapter 9: Circulation of the Ocean
Chapter 9: Circulation of the Ocean Tropical gardens on Britain s Scilly Isles. Only 48 kilometers (30 miles) off the coast of Cornwall at 50 N, these scenic islands lie in the path of the warm waters
More informationLesson: Ocean Circulation
Lesson: Ocean Circulation By Keith Meldahl Corresponding to Chapter 9: Ocean Circulation As this figure shows, there is a connection between the prevailing easterly and westerly winds (discussed in Chapter
More informationAgronomy 406 World Climates
Agronomy 406 World Climates January 30, 2018 Monsoons. Ocean properties and circulation. Review for today: Online textbook: 1.3.1 (Sea water) Composition and properties. For Thursday: Rahmstorf, S.: The
More informationOCN 201 Surface Circulation
OCN 201 Surface Circulation Excess heat in equatorial regions requires redistribution toward the poles 1 In the Northern hemisphere, Coriolis force deflects movement to the right In the Southern hemisphere,
More informationFriday, February 8 th. Winds/Coriolis Worksheet: Due Today Lab Worksheet: Finish Questions
Ocean Currents Friday, February 8 th Winds/Coriolis Worksheet: Due Today Lab Worksheet: Finish Questions Non-rotating Earth Convection cell model Add rotation and add landmasses unequal heating and cooling
More informationZonal (East-West) Currents. Wind-Driven Ocean Currents. Zonal (East-West) Currents. Meridional (N-S) Currents
Wind-Driven Ocean Currents Similarities between winds & surface currents Zonal (East-West) Currents Trade winds push currents westward north & south of the equator Equatorial currents. Up to 100 cm/sec.
More information10% water in the world is tied up in the surface ocean currents. (above the pycnocline) Primary source is wind: Westerlies, Trades, Polar Easterlies
Oceanography Chapter 9 10% water in the world is tied up in the surface ocean currents. (above the pycnocline) Primary source is wind: Westerlies, Trades, Polar Easterlies Coriolis deflects winds (and
More informationIX. Upper Ocean Circulation
IX. Upper Ocean Circulation World Ocean Covers 71% of Earth s surface Contains 97% of surface water Arctic Ocean NH: 61% ocean, 39% land Pacific Ocean Atlantic Ocean Southern Ocean Indian Ocean SH: 81%
More informationOcean Layers. Based on sunlight penetration: Based on water density: Sunlight (photosynthesis is possible) Twilight Midnight
PART 3 Ocean Layers Based on sunlight penetration: Sunlight (photosynthesis is possible) Twilight Midnight Based on water density: Mixed layer Pycnocline (rapid change of themperature/salinity) Deep ocean
More informationChapter 22, Section 1 - Ocean Currents. Section Objectives
Chapter 22, Section 1 - Ocean Currents Section Objectives Intro Surface Currents Factors Affecting Ocean Currents Global Wind Belts (you should draw and label a diagram of the global wind belts) The Coriolis
More informationOcean Currents Unit (4 pts)
Name: Section: Ocean Currents Unit (Topic 9A-1) page 1 Ocean Currents Unit (4 pts) Ocean Currents An ocean current is like a river in the ocean: water is flowing traveling from place to place. Historically,
More informationOcean Currents Lecture Notes
Ocean Currents Lecture Notes (Topic 9A) page 1 Ocean Currents Lecture Notes Surface Currents Ocean Currents (What is an ocean current? How is a current different from a wave?) The water in an travels from
More informationAssessment Schedule 2016 Earth and Space Science: Demonstrate understanding of processes in the ocean system (91413)
NCEA Level 3 Earth & Space Science (91413) 2016 page 1 of 6 Assessment Schedule 2016 Earth and Space Science: Demonstrate processes in the ocean system (91413) Evidence Statement Q Evidence with with Excellence
More informationDuckies have been found in Hawaii, Alaska, S. America, Scotland, Washington state and Australia as of 2012.
Duckies have been found in Hawaii, Alaska, S. America, Scotland, Washington state and Australia as of 2012. We learned that it takes 3 years to complete one circuit of the North Pacific Gyre flow in the
More informationOcean Currents that Redistribute Heat Globally
Ocean Currents that Redistribute Heat Globally Ocean Circulation Ocean Currents Fig. CO7 OCEAN CURRENTS Surface ocean currents are similar to wind patterns: 1. Driven by Coriolis forces 2. Driven by winds
More informationSection 6. The Surface Circulation of the Ocean. What Do You See? Think About It. Investigate. Learning Outcomes
Chapter 5 Winds, Oceans, Weather, and Climate Section 6 The Surface Circulation of the Ocean What Do You See? Learning Outcomes In this section, you will Understand the general paths of surface ocean currents.
More informationThe Surface Currents OCEA 101
The Surface Currents OCEA 101 Why should you care? - the surface ocean circulation controls the major ocean biomes - variations in ocean circulation control the supply of nutrients for marine organisms
More informationLecture 5.1 Surface Ocean Circulation. Image from Daily Mail Newspaper, UK
Lecture 5.1 Surface Ocean Circulation Image from Daily Mail Newspaper, UK Announcements Midterm is Thursday, consists of 25 multiple choice, 3 pages short answer questions No Scantron needed Calculators,
More informationWednesday, September 27, 2017 Test Monday, about half-way through grading. No D2L Assessment this week, watch for one next week
Wednesday, September 27, 2017 Test Monday, about half-way through grading No D2L Assessment this week, watch for one next week Homework 3 Climate Variability (due Monday, October 9) Quick comment on Coriolis
More informationW3 Global Circulation Systems
W3 Global Circulation Systems Which regions of Earth receive the most energy from the Sun? If not for global circulation systems There would only be two narrow regions that would support life What
More informationOCN 201, Chemistry & Physics Section
, A 1-April-2015 Name: Answer the True/False and Multiple Choice questions on the scantron sheet. Answer the remaining questions on this exam handout. Turn in both the scantron and exam at the end of class.
More informationEarth s oceans covers 71 % _ of the planet s surface. In reality, Earth s ocean waters are all. interconnected as part of a single large global ocean.
Ocean Motion Met 101: Introduction to the World's Oceans Produced by The COMET Program Geography: Name Pd. Earth s oceans covers 71 % _ of the planet s surface. In reality, Earth s ocean waters are all
More informationEl Niño Lecture Notes
El Niño Lecture Notes There is a huge link between the atmosphere & ocean. The oceans influence the atmosphere to affect climate, but the atmosphere also influences the ocean, which can also affect climate.
More informationSailing the Seas: Wind Driven Ocean Circulation Ocean Gyres
Sailing the Seas: Wind Driven Ocean Circulation Ocean Gyres Ocean Currents What Happens at the Coast? Readings: Ch 9: 9.2-9.6, 9.8-9.13 Graphic: America's Cup sailboat race off Newport, Rhode Island. J.
More informationOcean Motion. Ocean Currents. Before You Read. Read to Learn
chapter 18 3 Ocean Motion section 2 Ocean Currents What You ll Learn the Coriolis effect what influences surface currents the temperature of coastal waters about density currents Before You Read Imagine
More informationFor Class Today How does ocean water circulate? Ocean currents, surface currents, gyres, currents & climate, upwelling, deep ocean circulation
For Class Today Modified Cornell Notes on section 16.1 (pg. 448-453) **Follow the guide in your ISN and previous notes for help** Heading: How does ocean water circulate? Left hand side categories: Ocean
More informationDirected Reading. Section: Ocean Currents. a(n). FACTORS THAT AFFECT SURFACE CURRENTS
Skills Worksheet Directed Reading Section: Ocean Currents 1. A horizontal movement of water in a well-defined pattern is called a(n). 2. What are two ways that oceanographers identify ocean currents? 3.
More informationIntroduction to Physical Oceanography STUDENT NOTES Date: 1. What do you know about solar radiation at different parts of the world?
Introduction to Physical Oceanography STUDENT NOTES Date: 1 Warm up What do you know about solar radiation at different parts of the world? What affect does the tilt of the Earth have on the northern and
More informationOCN201 Spring14 1. Name: Class: Date: True/False Indicate whether the statement is true or false.
Name: Class: _ Date: _ OCN201 Spring14 1 True/False Indicate whether the statement is true or false. 1. Short residence time elements are uniformly distributed in the oceans 2. Thermohaline circulation
More informationATS150: Global Climate Change. Oceans and Climate. Icebergs. Scott Denning CSU 1
The Oceans Wind-Driven Gyre Circulations Icebergs Scott Denning CSU 1 Surface Balance of Forces friction coriolis wind stress resultant current Wind stress accelerates surface water Friction couples surface
More information1 Currents. TAKE A LOOK 2. Read a Map In what direction does the Gulf Stream flow?
CHAPTER 5 1 Currents SECTION The Movement of Ocean Water BEFORE YOU READ After you read this section, you should be able to answer these questions: What factors affect ocean currents? Why are ocean currents
More informationMidterm Exam III November 25, 2:10
Midterm Exam III November 25, 2:10 25, 2:10 3:25 pm, HW714 Chapters 7 (7.12 7.17), 8 and 9 (through section 9.15, included) 60 multiple choice questions this exam constitutes 22% (only) of your total (overall)
More informationOcean Currents Shortcut method by to learn faster
Ocean Currents Shortcut method by to learn faster In our geography notes on the hydrosphere, we have seen the major movements of the ocean water. They are waves, tides and ocean currents. Having covered
More informationOcean Currents Shortcut method by to learn faster
Ocean Currents Shortcut method by to learn faster In our geography notes on the hydrosphere, we have seen the major movements of the ocean water. They are waves, tides and ocean currents. Having covered
More informationOcean Current Worksheet
Ocean Current Worksheet Temperature Affects and Surface Currents: Surface waters of the Earth s oceans are forced to move, primarily by winds. Where winds blow in the same direction for a long period of
More informationMonday, October 2, Watch for new assessment (Week 4/5 review) TA s have your tests, please see key (at course website)
Monday, October 2, 2017 Watch for new assessment (Week 4/5 review) TA s have your tests, please see key (at course website) Homework 3 Due date Wednesday, Oct 11 (8 pm) Be ready to watch another important
More informationThe Ocean is a Geophysical Fluid Like the Atmosphere. The Physical Ocean. Yet Not Like the Atmosphere. ATS 760 Global Carbon Cycle The Physical Ocean
The Physical Ocean The Ocean is a Geophysical Fluid Like the Atmosphere Three real forces: Gravity Pressure gradients Friction Two apparent forces: Coriolis and Centrifugal Geostrophic & Hydrostatic balances
More informationWinds and Ocean Circulations
Winds and Ocean Circulations AT 351 Lab 5 February 20, 2008 Sea Surface Temperatures 1 Temperature Structure of the Ocean Ocean Currents 2 What causes ocean circulation? The direction of most ocean currents
More information170 points. 38 points In your textbook, read about modern oceanography. For each item write the word that meets the description.
Ch 15 Earth s Oceans SECTION 15.1 An Overview of Oceans 38 points In your textbook, read about modern oceanography. For each item write the word that meets the description. (5 points) 1. German research
More informationCurrent: large mass of continuously moving ocean water
Ocean Currents Current: large mass of continuously moving ocean water Surface Currents--Wind Circulation These waters make up about 10% of all the water in the ocean. These waters are the upper 400 meters
More informationQuiz name: Oceanography - Land and Sea Interaction - Quiz #2
Name: Quiz name: Oceanography - Land and Sea Interaction - Quiz #2 ate: 1. What is the direction of spin for gyres in the northern hemisphere? clockwise counter clockwise northern oscillation southern
More informationChapter 6: Atmospheric Pressure, Wind, and Global Circulation
Discovering Physical Geography Third Edition by Alan Arbogast Chapter 6: Atmospheric Pressure, Wind, and Global Circulation Factors That Influence Air Pressure Air Pressure is the measured weight of air
More informationOCN-201 Chemistry and Physics section
Name: Class: _ Date: _ OCN-201 Chemistry and Physics section True/False Indicate whether the statement is true or false. 1. Because of the dissolved salt in seawater its freezing point is lower than that
More informationGeneral Oceanography Geology 105 Expedition #19 The Ocean and Climate
General Oceanography Geology 105 Expedition #19 The Ocean and Climate Name Not attempting to answer questions on expeditions will result in point deductions on course workbook (two or more blank answers
More informationOCEANOGRAPHY STUDY GUIDE
OCEANOGRAPHY STUDY GUIDE Chapter 2 Section 1 1. Most abundant salt in ocean. Sodium chloride; NaCl 2. Amount of Earth covered by Water 71% 3. Four oceans: What are they? Atlantic, Pacific, Arctic, Indian
More informationLornshill Academy. Geography Department Higher Revision Physical Environments - Atmosphere
Lornshill Academy Geography Department Higher Revision Physical Environments - Atmosphere Physical Environments Atmosphere Global heat budget The earth s energy comes from solar radiation, this incoming
More informationWrite about this. Have you ever experienced a very strong wind gust? What happened? Have you ever felt a gentle breeze? What did it feel like?
Write about this. Have you ever experienced a very strong wind gust? What happened? Have you ever felt a gentle breeze? What did it feel like? How wind works Winds flow on earth based on differences in
More informationOCEANOGRAPHY 101. Map, and temperature, salinity & density profiles of the water column at X, near mouth of the Columbia River.
OCEANOGRAPHY 101 EXAM 2 WINTER 00 NAME STUDENT NUMBER 1 Map, and temperature, salinity & density profiles of the water column at X, near mouth of the Columbia River. P a c i f i c O c e a n X WA Columbia
More informationSIO 210 Final examination Wednesday, December 11, PM Sumner auditorium Name:
SIO 210 Final examination Wednesday, December 11, 2013 2-5 PM Sumner auditorium Name: Turn off all phones, ipods, etc. and put them away. This is a closed book exam. You may use one page of notes, both
More informationOcean Circulation, Food Webs and Climate What does the wind have to do with feeding fish (and feeding us)?
Ocean Circulation, Food Webs and Climate What does the wind have to do with feeding fish (and feeding us)? El Niño: Tropical Oceans and Global Climate Reading: 9.10-9.13, 9.15 Graphic: Upwelling off Cape
More informationLecture 13. Global Wind Patterns and the Oceans EOM
Lecture 13. Global Wind Patterns and the Oceans EOM Global Wind Patterns and the Oceans Drag from wind exerts a force called wind stress on the ocean surface in the direction of the wind. The currents
More informationESS15 Lecture 12. Review, tropical oceans & El Nino, and the thermohaline ocean circulation. Please see new reading material on website.
ESS15 Lecture 12 Review, tropical oceans & El Nino, and the thermohaline ocean circulation. Please see new reading material on website. Review. I-clicker exercise: In this graph of Earth s energy imbalances
More informationLife in the Current. Beyond the Book. FOCUS Book
FOCUS Book Eddies often form on the edges of a fast-moving ocean current. Make a model of an eddy. Fill a clear plastic bowl with warm tap water. Slowly stir the water to make it swirl. Predict what will
More informationOur Climate: A Global Challenge. Academy of Lifelong Learning Denver, CO April 9, 2015
Our Climate: A Global Challenge Academy of Lifelong Learning Denver, CO April 9, 2015 Oceans Thermohaline Circulation It takes water 500 to 1000 years to go around the planet. Thermohaline Circulation,
More informationOcean water is constantly in motion, powered by many different
Section 16.1 16.1 Circulation 1 FOCUS Section Objectives 16.1 Explain how surface currents develop. 16.2 Describe how ocean currents affect climate. 16.3 State the importance of upwelling. 16.4 Describe
More informationLecture 13 El Niño/La Niña Ocean-Atmosphere Interaction. Idealized 3-Cell Model of Wind Patterns on a Rotating Earth. Previous Lecture!
Lecture 13 El Niño/La Niña Ocean-Atmosphere Interaction Previous Lecture! Global Winds General Circulation of winds at the surface and aloft Polar Jet Stream Subtropical Jet Stream Monsoons 1 2 Radiation
More informationOceanography. Chapter 7 CIRCULATION PATTERNS AND OCEAN CURRENTS
Oceanography Chapter 7 CIRCULATION PATTERNS AND OCEAN CURRENTS أ. راي د مرعي الخالدي Circulation Patterns and Ocean Currents 7.1 Density-Driven Driven Circulation 7.2 Thermohaline Circulation 7.3 The Layered
More informationChapter 10 Lecture Outline. The Restless Oceans
Chapter 10 Lecture Outline The Restless Oceans Focus Question 10.1 How does the Coriolis effect influence ocean currents? The Ocean s Surface Circulation Ocean currents Masses of water that flow from one
More information(20 points) 1. ENSO is a coupled climate phenomenon in the tropical Pacific that has both regional and global impacts.
SIO 210 Problem Set 4 Answer key December 1, 2014 Due Dec. 12, 2014 (20 points) 1. ENSO is a coupled climate phenomenon in the tropical Pacific that has both regional and global impacts. (2 points) a)
More informationFigure 8.8. Figure Oceanography 10 Ocean Circulation. Gulf Stream flows at 55 million cubic meters/sec, 500 times the flow of the Amazon River
Oceanography 10 Ocean Circulation PART 1: Introduction General types of Ocean Currents Solar Energy and the Seasons PART 2: Measuring Ocean Currents and Structure PART 3: General Surface Currents and their
More informationDeep Water Currents Lab
Deep Water Currents Lab Background: Anyone visiting the seashore is struck by the constant motion of water traveling on the surface of the ocean in the form of waves. But beneath the ocean's surface, water
More informationOceanography 10, T. James Noyes, El Camino College 09A-1. Ocean Currents
Oceanography 10, T. James Noyes, El Camino College 09A-1 INTRODUCTION TO OCEAN CURRENTS Ocean Currents What is an ocean current? Why do we care about ocean currents? An ocean current is like a river in
More informationATOMOSPERIC PRESSURE, WIND & CIRCULATION
ATOMOSPERIC PRESSURE, WIND & CIRCULATION A. INTRODUCTION Important because: pressure patterns drive wind patterns which in turn drive oceanic circulation patterns o atmospheric & oceanic circulation: major
More information9/25/2014. Scales of Atmospheric Motion. Scales of Atmospheric Motion. Chapter 7: Circulation of the Atmosphere
Chapter 7: Circulation of the Atmosphere The Atmosphere: An Introduction to Meteorology, 12 th Lutgens Tarbuck Lectures by: Heather Gallacher, Cleveland State University Scales of Atmospheric Motion Small-
More informationSURFACE CURRENTS AND TIDES
NAME SURFACE CURRENTS AND TIDES I. Origin of surface currents Surface currents arise due to the interaction of the prevailing wis a the ocean surface. Hence the surface wi pattern (Figure 1) plays a key
More informationCOASTAL UPWELLING - MONTEREY BAY CALIFORNIA (modified from The Maury Project, AMS)
Name: Date: Per: COASTAL UPWELLING - MONTEREY BAY CALIFORNIA (modified from The Maury Project, AMS) The ocean is composed of 3 distinct layers: the shallow surface mixed zone, the transition zone, and
More informationOcean Motion Notes. Chapter 13 & 14
Ocean Motion Notes Chapter 13 & 14 What is a Wave? Wave: movement of energy through a body of water How are Waves Caused? Caused mostly by wind Wind blowing on the water transmits energy to the water Size
More informationOceans and the Global Environment: Lec 2 taking physics and chemistry outdoors. the flowing, waving ocean
Oceans and the Global Environment: Lec 2 taking physics and chemistry outdoors the flowing, waving ocean Peter Rhines 1 Eric Lindahl 2 Bob Koon 2, Julie Wright 3 www.ocean.washington.edu/courses/has221a-08
More informationThe ocean water is dynamic. Its physical
CHAPTER MOVEMENTS OF OCEAN WATER The ocean water is dynamic. Its physical characteristics like temperature, salinity, density and the external forces like of the sun, moon and the winds influence the movement
More information3/22/11. General Circulation of the Atmosphere. General Circulation of the Atmosphere
Chapter 10 General refers to the average air flow, actual winds will vary considerably. Average conditions help identify driving forces. The basic cause of the general circulation is unequal heating of
More informationWind Driven Circulation Indian Ocean and Southern Ocean
Wind Driven Circulation Indian Ocean and Southern Ocean Lecture 18 MAR 350 Spring 2017 Reading: Knauss Chapter 7 ECCO2 model animation ecco2_sst_flow (2).mp4 Mean surface height and currents DPO Fig. 11.1
More informationNevis Hulme Gairloch High School John Smith Invergordon Academy. Gairloch High School / Invergordon Academy
Nevis Hulme Gairloch High School John Smith Invergordon Academy 1 Gairloch High School / Invergordon Academy ATMOSPHERIC CIRCULATION The Three Cell Model Global Winds The ITCZ The purpose of this presentation
More informationChapter 6. Atmospheric and Oceanic. Circulations. Circulations
Chapter 6 Atmospheric and Oceanic Circulations Robert W. Christopherson Charlie Thomsen Winds: Transfer energy and mass (1) Balance energy equatorial energy surplus and polar energy deficit (2) Generate
More informationPrevailing Winds. The Coriolis Effect
Prevailing Winds 1. Wind: a movement of air in the atmosphere. Bill Nye wind (2 minutes) 2. Local or regional wind: occur in fairly small areas. 3. Prevailing winds: Major wind pattern that affect large
More informationName Class Date. Use the terms from the following list to complete the sentences below. Each term may be used only once. Some terms may not be used.
Assessment Chapter Test B The Movement of Ocean Water USING KEY TERMS Use the terms from the following list to complete the sentences below. Each term may be used only once. Some terms may not be used.
More informationSection 1. Global Wind Patterns and Weather. What Do You See? Think About It. Investigate. Learning Outcomes
Chapter 5 Winds, Oceans, Weather, and Climate Section 1 Global Wind Patterns and Weather What Do You See? Learning Outcomes In this section, you will Determine the effects of Earth s rotation and the uneven
More informationGlobal Winds AOSC 200 Tim Canty
Global Winds AOSC 200 Tim Canty Class Web Site: http://www.atmos.umd.edu/~tcanty/aosc200 Topics for today: Global Wind Patterns Deserts Jet Stream Monsoons Ocean transport Ocean cycles Lecture 16 Oct 24
More informationChapter. The Dynamic Ocean
Chapter The Dynamic Ocean An ocean current is the mass of ocean water that flows from one place to another. 16.1 The Composition of Seawater Surface Circulation Surface Currents Surface currents are movements
More informationName Date L.O: SWBAT explain what breezes, planetary winds, ocean currents & monsoons are.
Name Date L.O: SWBAT explain what breezes, planetary winds, ocean currents & monsoons are. 1. A cool breeze is blowing toward the land from the ocean on a warm, cloudless summer day. This condition is
More informationAtmospheric and Ocean Circulation Lab
Atmospheric and Ocean Circulation Lab name Key Objectives: The main goal of this lab is to learn about atmospheric and oceanic circulation and how these two processes are strongly inter-dependent and strongly
More informationChapter: Atmosphere Section 3: Air Movement
Table of Contents Chapter: Atmosphere Section 3: Air Movement We will learn about Air Movement=Wind -Why different latitudes on Earth will receive different amounts of Solar Energy -The Coriolis Effect
More informationWind Movement and Global and Local Winds
Wind Movement and Global and Local Winds In previous lessons, you learned that the uneven heating of Earth s surface by the Sun causes some areas to be warmer than others. This uneven heating of land forms
More informationFluid Circulation (Student Mastery Objectives) -The most frequent type of heat transfer of energy in the atmosphere is convection.
Fluid Circulation (Student Mastery Objectives) -The most frequent type of heat transfer of energy in the atmosphere is convection. -Differences in density affect the circulation of fluids. Cold air is
More informationGEOGRAPHY - STD 8 [ ] Q1.
GEOGRAPHY - STD 8 Movements of Oceans [2016-2017] Q1. Name the two types of regular movements in the oceans. Ans. The regular movements in the ocean are of two types: 1. Horizontal Ocean currents 2. Vertical
More information3 Global Winds and Local Winds
CHAPTER 15 3 Global Winds and Local Winds SECTION The Atmosphere BEFORE YOU READ After you read this section, you should be able to answer these questions: What causes wind? What is the Coriolis effect?
More informationTrade winds Prevailing westerlies east
Warm-up Page: 528, 1. What is the major wind belt that is nearest the equator? Trade winds Page: 528, 2. What is the major wind belt that the most of the USA belongs to: Prevailing westerlies Page: 528,
More informationRead each slide, some slides have information to record on your organizer. Some slides have numbers that go with the question or red and underlined
Read each slide, some slides have information to record on your organizer. Some slides have numbers that go with the question or red and underlined to use for answering the questions. Essential Question:
More informationUpwelling. LO: interpret effects of upwelling on production of marine ecosystems. John K. Horne University of Washington
Upwelling LO: interpret effects of upwelling on production of marine ecosystems John K. Horne University of Washington Effects of Upwelling - Upwelling enhances biological productivity, which feeds fisheries.
More informationEarth Science. Mark Lilly. 8th Period. Snow Packet 5
Earth Science Mark Lilly 8th Period Snow Packet 5 Instructions: 1. Read pages 421-427 2. Define all vocabulary on page 421 3. Answer three essential questions on top left of page 421 4. Answer questions
More informationMeteorology I Pre test for the Second Examination
Meteorology I Pre test for the Second Examination MULTIPLE CHOICE 1. A primary reason why land areas warm up more rapidly than water areas is that a) on land, all solar energy is absorbed in a shallow
More informationAir moves towards ITCZ in tropics because of rising air - convection. Horizontal extent of Hadley cell is modified by Friction Coriolis Force
Air moves towards ITCZ in tropics because of rising air - convection Horizontal extent of Hadley cell is modified by Friction Coriolis Force Speed from rotation Objects at rest on Earth move at very different
More informationLecture Outlines PowerPoint. Chapter 15 Earth Science, 12e Tarbuck/Lutgens
Lecture Outlines PowerPoint Chapter 15 Earth Science, 12e Tarbuck/Lutgens 2009 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the use of instructors
More informationHYDROSPHERE, OCEANS AND TIDES
HYDROSPHERE, OCEANS AND TIDES Revision 10x10learning.com 1 Chapter 12. In the Earth s Atmosphere On surface of the Earth Under the ground Hydrosphere comprises of ALL WATER Water Vapour = 0.001% Is very
More informationAOS 103. Week 4 Discussion
AOS 103 Week 4 Discussion Starting from an atmospheric HIGH pressure center (e.g. for the subtropical Pacific) North Hemi 1) Deduce/draw/describe the geostrophic wind 2) Deduce/draw/describe the Ekman
More informationLeeuwin Current - Reading
Leeuwin Current At 5,500 kilometres, the Leeuwin is our longest ocean current! One of Australia s most influential natural features, the Leeuwin Current, has been confirmed as the longest continuous coastal
More information