Discussion groups Goal: Understand interaction between the ITCZ and upwelling zones (Benguela, Guinea, eastern cold tongue) and the implications for predictability.

Slides:

Advertisements

Similar presentations

Oceanography Chapter Heating of Earth’s surface and atmosphere by the sun drives convection within the atmosphere and oceans, producing winds and.

Advertisements

Ocean and Atmosphere Coupling El-nino -- Southern Oscillation

Air-sea heat fluxes in the stratocumulus deck / cold tongue / ITCZ complex of the eastern tropical Pacific Meghan F. Cronin (NOAA PMEL) Chris Fairall (NOAA.

Deep Tropical Convection contribution to climate change.

Ocean Structure and Circulation 1. Ocean Model Temperature Depth Surface Deeper WarmerColder 2.

The 1997/98 ENSO event. Multivariate ENSO Index Index is based on 6 parameters relevant to phase.

Clines Cline means ‘rapid change in’ Thermocline is a rapid change in temperature Pycnocline is a rapid change in density.

Introduction to Ocean Circulation - Geography 163 Wind-driven circulation of major gyres & surface currents Buoyancy-driven circulation linking the major.

Introduction to Ocean Circulation - Geography 163 Wind-driven circulation of major gyres & surface currents Buoyancy-driven circulation linking the major.

Chap. 3 Regional climates in tropics 3.1 Regional climates 3.2 Ocean circulations 3.3 Structure of the InterTropical Convergence Zone (ITCZ) 3.4 Monsoon.

Chapter 6: Global Fluxes and The Deep Circulation Heat Budget Conservation of Salt Oceanic Water Masses Oceanic Mixing Temperature - Salinity Diagrams.

The 1997/98 ENSO event. Multivariate ENSO Index Index is based on 6 parameters relevant to phase.

Introduction to Ocean Circulation - Geography 163 Wind-driven circulation of major gyres & surface currents Buoyancy-driven circulation linking the major.

=(S,,0); 4=(S,,4000).

Lecture 7: The Oceans (1) EarthsClimate_Web_Chapter.pdfEarthsClimate_Web_Chapter.pdf, p

Lesson 11: El Niño Southern Oscillation (ENSO) Physical Oceanography

Get a piece of paper and write A B C D. Answer the following.

Equatorial Atmosphere and Ocean Dynamics

Charge to the Working Group How well do we understand the 2007 sea ice extent minimum? (through modelling and data analysis including retrospective analyses.

Earth Science: 15.1B Ocean Water and Life

Atmosphere Shallow Meridional Circulations: A New Mechanism for ITCZ-Cold Tongue Interaction Chidong Zhang RSMAS, University of Miami Miami, FL.

Observation program for role of the Indian Ocean in the climate system Gary Meyers Co-Chair CLIVAR/GOOS Indian Ocean Panel With Contributions from IOP.

OCEAN INTERACTIONS WITH THE ATMOSPHERE Niki Henzel & Ron Gabbay.

What’s the story?.

1 Global Ocean Monitoring: Recent Evolution, Current Status, and Predictions Prepared by Climate Prediction Center, NCEP September 7, 2007

Properties of Water. WATER MOLECULES ARE MADE OF 2 HYDROGEN ATOMS AND 1 OXYGEN ATOM. THE HYDROGEN ATOM OF 1 MOLECULE IS ATTRACTED TO THE OXYGEN ATOM OF.

Deep Water Circulation Also known as thermohaline circulation.

Equatorial Circulation and Tropical Atlantic Variability during the Tropical Atlantic Climate Experiment Peter Brandt 1, Andreas Funk 2, Alexis Tantet.

 In the mid-Pleistocene, the period of glacial cycles changed from 41kyr to 100kyr.  The zonal SST gradient increased during MPT due to the cooling in.

Ocean-Atmosphere Interaction. Review of last lecture Large spread in projected temperature change comes from uncertainties in climate feedbacks Main climate.

Ocean Currents.

1 Using Satellite Data for Climate Modeling Studies: Representing Ocean Biology-induced Feedback Effect in the Tropical Pacific Rong-Hua Zhang CICS-ESSIC,

Typical Distributions of Water Characteristics in the Oceans.

Seawater Chemistry & Ocean Stratification 1. Key Points The salt in seawater is due in part to water’s unique properties. Seawater density is influenced.

Role of the Gulf Stream and Kuroshio-Oyashio Systems in Large- Scale Atmosphere-Ocean Interaction: A Review Young-oh Kwon et al.

Do Now 4/28/14 1.Which of the following factors affects and/or helps create ocean currents? a) Wind b) Temperature c) Salinity (Salt) Levels d) Shorelines.

Deep Ocean Circulation. Significant vertical movement ▫Accounts for the thorough mixing of deep- water masses.

Density structure of the Ocean - Distribution of temperature and salinity in the ocean.

Salinity and Density Differences VERTICAL STRUCTURE, THERMOHALINE CIRCULATION & WATER MASSES.

Water Properties Surface Tension Viscosity Changes in State.

Homework 1 Solutions. Problem One Use Clausius-Clapeyron Curve From 0 o C to 3 o C – Change of ~1mb From 25 o C to 28 o C – Change of ~5mb (8)

Climate and Climate Change Chapter 9. Warm Up O Which is more Dense? O Materials: plastic container, warm water, cup, ice water, food coloring O Predict:

Oceans & El Nino Ocean-atmosphere coupling matters.

OCEAN CIRCULATION. DENSITY OF SEAWATER DENSITY INCREASES DEPTH INCREASES TEMP DECREASES SALINITY INCREASES EFFECT OF TEMP > EFFECT OF SALINITY.

Typical Distributions of Water Characteristics in the Oceans

4-1 THE ROLE OF CLIMATE MAIN IDEAS 1.Weather 2.Climate 3.Greenhouse effect 4.Polar Zone 5.Temperate Zone 6.Tropical Zone Objective Identify the variables.

Tropical Atlantic workshop 7-9 June 2004, de Bilt Following earlier meetings, the objectives are: review recent progress in measuring and modelling Tropical.

Southern Hemisphere extra-tropical forcing: a new paradigm for ENSO Pascal Terray, 2010 R 陳漢卿.

Tropical Atlantic SST in coupled models; sensitivity to vertical mixing Wilco Hazeleger Rein Haarsma KNMI Oceanographic Research The Netherlands.

Equatorial Atlantic Variability: Dynamics, ENSO Impact, and Implications for Model Development M. Latif 1, N. S. Keenlyside 2, and H. Ding 1 1 Leibniz.

Impact of a warm ocean eddy’s circulation on hurricane-induced sea surface cooling with implications for hurricane intensity Richard M. Yablonsky and Isaac.

Hurricane Irene Hurricane Sandy

Projected changes to the tropical Pacific Ocean

Ocean Currents and Circulation.

Funded by the European Union under FP7, GA n Objectives

Item #7: Indices Sea Surface Temperature indices

Chapter 9: Insolation Control of Monsoons

Ocean Currents and Circulation.

The 1997/98 ENSO event.

The 1997/98 ENSO event.

Ocean Water & Life.

The 1997/98 ENSO event.

(Pinet) Major ocean current systems 4 Surface patterns extend as deep as 1000 m 5.

Summary Global Circulation

Ocean Water Most of the salt in the ocean is sodium chloride, which is made up of the elements sodium and chloride, although many other elements can be.

NATS Lecture 15 Atmo-Ocean Interactions El Niño-Southern Oscillation

Deep Circulation Changes in density cause ocean currents Cold Warm

Ocean Water Most of the salt in the ocean is sodium chloride, which is made up of the elements sodium and chloride, although many other elements can be.

21.1 Properties of Ocean Water

Ocean Currents.

Presentation transcript:

Discussion groups Goal: Understand interaction between the ITCZ and upwelling zones (Benguela, Guinea, eastern cold tongue) and the implications for predictability Objectives: To develop a modelling strategy Design process experiments and sustained observing systems Synthesis

Model strategy To improve SST forecasts (seasonal to interannual) How will tropical Atlantic region respond to global warming? What are the relevant processes? What are the key parameters/parameterizations? What observations are needed (process/sustained)?

Observing systems Determine mixed layer heat budget and subsurface heat content Determine surface and subsurface current structure and their role in modulating the heat budget and thermocline properties Determine the role of ocean vertical mixing on mixed layer heat budget (process oriented) Determine shallow and deep circulation in the marine ITCZ complex Refine/review proposed process and sustained observing system for the eastern Tropical Atlantic for the next 5 years (what, where)

Time line 9:15-10:30: existing plans coffee 11:00 –12:00: discussion Observing system group (Bill): Buys Ballotzaal Model strategy (Wilco): B4.13 Lunch 13:00 – … Present plans and discussion