Climate projections and predictions: Challenges and possible solutions
|
|
- Lee Reynolds
- 5 years ago
- Views:
Transcription
1 United Nations Open-ended Informal Consultative Process on Oceans and the Law of the Sea Eighteenth meeting Climate projections and predictions: Challenges and possible solutions Fangli Qiao First Institute of Oceanography, SOA, China May 2017 Collaborators: Zhenya Song, Guansuo Wang, Chuanjiang Huang
2 Outline 1. Challenges of ocean and climate models 2. Surface wave induced mixing and ocean model development 3. Surface wave in climate models 4. Summary
3 1. Challenges of ocean and climate models
4 Monsoon 2015 ends with 14% shortfall Indonesian Forest Fires Out of Control Flooding 'worst in 50 years', as 150,000 flee in Paraguay, Argentina, Brazil and Uruguay
5 Great challenge: Sea surface temperature difference between MMM of 45 CMIP5 models and observation
6 Tropical biases: a common problem for all climate models Song et al, 2012, JGR
7 Global oceans have absorbed more that 90% heat due to climate change, and about 1/3 of anthropogenic CO 2 IPCC-AR5
8 MLD in CMIP5 models Huang et al, 2014, JGR
9 MLD in OGCM Observation Model from POM 9
10 Lack of mixing in the upper ocean As the mixing process is essentially an energy balance problem, waves, as the most energetic motions at the ocean surface, should play a controlling role. Surface wave: 60 TW, Circulation: 4 TW
11 Motivation for model development Two of the common problems nearly all models faced: OGCMs: Simulated SST is overheating in summertime, and mixed layer depth is too shallow while the thermocline is too weak (Martin 1985, Kantha 1994, Ezer 2000, Mellor 2003). Climate Models: Tropical bias for all CGCMs, such as too cold tongue, wrong Atlantic SST gradient Is the surface wave a low-lying fruit?
12 2. Surface wave induced mixing and ocean model development
13 How surface waves affect OGCM? Breaking wave induced stress and energy flux (Craig and Banner, 1994; He and Chen, 2011) Coriolis-Stokes force (Polton et al., 2005) Langmuir circulation (Kantha and Clayson, 2004) Wave-induced shear (Pleskachevsky et al., 2011) Wave-turbulence interaction enhanced mixing (Qiao et al, 2004, 2010,2016). The non-breaking wave induced vertical mixing is the key
14 E(K) is the wave number spectrum which can be calculated from a wave numerical model. It will change with (x, y, t), so Bv is the function of (x, y, z, t). v ( ) 2 B exp{ 2 } ( ) V = α E k kz dk ω E k exp{ 2kz} dk z k k Qiao et al, GRL, 2004; OD, 2010; RS, 2016 If we regard surface wave as a monochramatic wave, B = αa kω e = αau e 3 ( 3 kz) ( 3 kz) s Bv is wave motion related vertical mixing instead of wave breaking., 1 2 Stokes Drift
15 Laboratory experiments reveals that the non-breaking surface wave can generate strong turbulence: To generate temperature gradient through bottom cooling of refrigeration tubes. Top of wave tank Temperature sensor Refrigeration tube Bottom of wave tank Dai and Qiao et al, JPO, 2010
16 Experiment results without and with waves
17 Observation evidences Vertical profiles of the measured dissipation rates ε m (dots), and those predicted by wave ε wave (black lines) and the law of the wall ε wall (pink lines) at Station S1~S12 (in m 2 s 3 ). Observation is conducted in SCS during October 29 to November 10, Huang and Qiao et al, 2012, JGR
18 Blue line Osborn, 1980 Green line Terray et al. (1996) Sutherland et al., 2013, OS Red line Huang and Qiao (2010)
19 Wave effects: MLD in summer (Qiao et al, OD, 2010) MLD of the Southern Pacific in Feb. MLD of the Northern Atlantic in Aug. With waveinduce mixing Without waveinduce mixing World Ocean Atlas
20 Bv in NEMO: Prof Adrian New of NOC, UK 2 1 1/4 No Bv Bv effect With Bv Simulated temperature difference at 50m in February
21 Bv in FESOM: Prof G Lohmann of AWI, Germany Temperature Difference of 30S Temperature Difference of 30N (a) without Bv - WOA09 (b) with Bv - without Bv (c) with Bv - WOA09 black line - zero line (a) without Bv - WOA09 (b) with Bv - without Bv (c) with Bv - WOA09 black line - zero line
22 3. Surface wave in climate models In tropical area, Bv has no much improvements for the ocean circulation model compared with mid- and high latitudes. For full coupled climate model, it is a different story because of the feedback and nonlinearity. FGCM0 of LASG and CCSM3 of NCAR
23 50a averaged SST ( a). Up: Exp1-Levitus, Down: Exp2-Exp1 Exp1: CCSM3 without Bv Exp2: with Bv
24 Water vapor transport in Australian-Asian Monsoon area No Bv With Bv Bv effect Data Song and Qiao et al, 2012, JAS
25 Yalin Fan, and Stephen M. Griffies, 2014, JC (Fig 3) Summertime oceanic mixed layers are biased shallow in both the GFDL and NCAR climate models (Bates et al. 2012; Dunne et al. 2012, 2013). This scheme (Qiao et al., 2004) has most impact in our simulations on deepening the summertime mixed layers, yet it has minimal impact on wintertime mixed layers.
26 FIO-ESM for CMIP5 Wave-induced mixing, Qiao et al., 2004 Land carbon CASA Ocean carbon OCMIP-2 Atmosphere CO2 transport Framework of FIO-ESM version1.0
27 Descriptions of the FIO-ESM Physical models ATM: CAM3.0, T42L26 LND: CLM3, T42 OCN: POP2, 1.1 o *0.3~0.5 o, 40 vertical layers ICE: CICE4, 1.1 o *0.3~0.5 o WAV: MASNUM wave model, 2 o *2 o Wave-circulation coupling: based on the wave-inducing mixing
28 SST absolute mean errors for 45 CMIP5 models
29 Centurial Future Projections 3.92
30 2.2 x x x x RCP2.6 RCP4.5 RCP6.0 RCP January 1.4 February 1.4 March 1.4 April x x x x May June 6 4 July 0 August 12 x x x x September 5 October 0.5 November 1 December Time series of Arctic sea ice extent from RCP run. Unit: m 2
31 12 x September
32 Conclusions P R China is one of the countries suffering mostly from climate change. For example, the sea level rise due to climate change is about 1.8 mm/year globally, while it is 3.2 mm/year for China during 1980 and 2016, which is about double of the global average, and the stronger Typhoons in the NW Pacific. We would like to contribute more for climate change research on observation and projection.
33 Conclusions (1)Climate prediction and projection still have large uncertainty. (2) We find that the omitted surface wave, which plays dominant role in upper ocean mixing, can greatly improve our prediction and projection ability of climate models.
34 Thank you for your attention
Model activities at FIO: The essential mixing effects of the nonbreaking surface wave on general circulation and climate models
Model activities at FIO: The essential mixing effects of the nonbreaking surface wave on general circulation and climate models Fangli Qiao First Institute of Oceanography, SOA, China May 22, 2015 Qingdao
More informationThe development of high resolution global ocean surface wave-tidecirculation
PICES Annual Meeting in Qingdao The development of high resolution global ocean surface wave-tidecirculation coupled model Fangli Qiao, Qi Shu and Bin Xiao First Institute of Oceanography, SOA, China Oct
More informationClimate change and the South Asian monsoon. Dr Andy Turner*
7-8 November 2014 ICIMOD, Kathmandu, Nepal Climate change and the South Asian monsoon International Workshop on Water and Air Challenges in the HKH Under Climate and Environmental Change: Dr Andy Turner*
More informationThe Air-Sea Interaction. Masanori Konda Kyoto University
2 The Air-Sea Interaction Masanori Konda Kyoto University 2.1 Feedback between Ocean and Atmosphere Heat and momentum exchange between the ocean and atmosphere Atmospheric circulation Condensation heat
More informationNSF funded project , June 2010-May 2015
NSF funded project 0961545, June 2010-May 2015 Nested Regional Climate Model (nrcm) update The effect of embedding ROMS in a coastal upwelling zone in CCSM4 R. Justin Small (NCAR), Brian Kauffman (NCAR),
More informationOcean Spinup in CESM. Current issues and discussion. Cécile Hannay, Rich Neale and Joe Tribbia Atmospheric Modeling and Predictability (CGD/NCAR)
Ocean Spinup in CESM. Current issues and discussion. Cécile Hannay, Rich Neale and Joe Tribbia Atmospheric Modeling and Predictability (CGD/NCAR) Keith Lindsay and Gokhan Danabasoglu Oceanography Section
More informationOrigin of Inter-model uncertainty in ENSO amplitude change
Origin of Inter-model uncertainty in ENSO amplitude change Shang-Ping Xie Scripps Institution of Oceanography, UCSD Zheng, X.T., S.-P. Xie, L.H. Lv, and Z.Q. Zhou, 2016: Intermodel uncertainty in ENSO
More informationData Analysis of the Seasonal Variation of the Java Upwelling System and Its Representation in CMIP5 Models
Data Analysis of the Seasonal Variation of the Java Upwelling System and Its Representation in CMIP5 Models Iulia-Mădălina Ștreangă University of Edinburgh University of Tokyo Research Internship Program
More informationInterference of the Equatorial Waves on the 2017 Indian Monsoon Northward Progression
https://www.bing.com/images/search?view=detailv2&ccid=4gaj08ec&id=15b827d717e11e 07790F5BCC0A4E13BBD103123C&thid=OIP.4gaj08EcIqXuIdGNdiwwUAEsDI&q=monsoon+pi ctures&simid=608027853209010910&selectedindex=119&mode=overlay&first=1
More informationImproving Simulations of the Upper Ocean by Inclusion of Surface Waves in the Mellor-Yamada Turbulence Scheme
Old Dominion University ODU Digital Commons CCPO Publications Center for Coastal Physical Oceanography 2011 Improving Simulations of the Upper Ocean by Inclusion of Surface Waves in the Mellor-Yamada Turbulence
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 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 informationSeasonal predictions of equatorial Atlantic SST in a low-resolution CGCM with surface Heat Flux Correction
Seasonal predictions of equatorial Atlantic SST in a low-resolution CGCM with surface Heat Flux Correction T. Dippe 1, R. Greatbatch 1, and H. Ding 2 [1] GEOMAR Helmholtz Centre for Ocean Research, Kiel
More informationDiagnosing the sources of systematic SST biases in CESM using ensemble seasonal hindcasts
Diagnosing the sources of systematic SST biases in CESM using ensemble seasonal hindcasts Angela Cheska Siongco Lawrence Livermore National Laboratory with H. Ma, S. Klein, and S. Xie (LLNL) A. Karspeck,
More informationATMS 310 Tropical Dynamics
ATMS 310 Tropical Dynamics Introduction Throughout the semester we have focused on mid-latitude dynamics. This is not to say that the dynamics of other parts of the world, such as the tropics, are any
More informationThe role of northern Arabian Sea surface temperature biases in CMIP5 model simulations and future projections of Indian summer monsoon rainfall
The role of northern Arabian Sea surface temperature biases in CMIP5 model simulations and future projections of Indian summer monsoon rainfall Richard Levine Thanks to: Andy Turner, Deepthi Marathayil,
More informationAre Hurricanes Becoming More Furious Under Global Warming?
Are Hurricanes Becoming More Furious Under Global Warming? Z H A N L I U N I V E R S I T Y O F U T A H A T M O S P H E R I C S C I E N C E S D E P A R T M E N T T U E S D A Y, M A R C H 1 6, 2 0 1 0 OUTLINE
More informationLecture 8: Pressure and Wind
Lecture 8: Pressure and Wind Pressure Distribution Forces Affect Wind Earth s Rotation Coriolis Force Geostrophic Balance Energy (Heat) The first law of thermodynamics Air Temperature Air Pressure Air
More informationIndian Ocean warming its extent, and impact on the monsoon and marine productivity
Indian Ocean warming its extent, and impact on the monsoon and marine productivity RIO WIO Indian Ocean warming: o Western Indian Ocean experienced strong, monotonous warming during the last century o
More informationDoes Southern Ocean surface forcing shape the global ocean overturning circulation?
Does Southern Ocean surface forcing shape the global ocean overturning circulation? Shantong Sun 1, Ian Eisenman 1, and Andrew Stewart 2 1 Scripps Institution of Oceanography, University of California
More informationTrade winds How do they affect the tropical oceans? 10/9/13. Take away concepts and ideas. El Niño - Southern Oscillation (ENSO)
El Niño - Southern Oscillation (ENSO) Ocean-atmosphere interactions Take away concepts and ideas What is El Niño, La Niña? Trade wind and Walker circulation. What is the Southern Oscillation? Tropical
More informationNEW INSIGHTS INTO THE SOUTHERN OCEAN'S ROLEINCLIMATE: ANUPDATE
NEW INSIGHTS INTO THE SOUTHERN OCEAN'S ROLEINCLIMATE: ANUPDATE FROM SOCCOM Alison Gray School of Oceanography University of Washington US CLIVAR Summit August 9, 2017 SOUTHERN OCEAN ROLE IN GLOBAL CARBON
More informationImpact of fine-scale wind stress curl structures on coastal upwelling dynamics : The Benguela system as a case of study.
IOVWST Meeting May 21, 2015, Portland (OR) Impact of fine-scale wind stress curl structures on coastal upwelling dynamics : The Benguela system as a case of study. Fabien Desbiolles1,2, Bruno Blanke1,
More informationA new mechanism of oceanatmosphere coupling in midlatitudes
A new mechanism of oceanatmosphere coupling in midlatitudes Arnaud Czaja & Nicholas Blunt Imperial College, London Grantham Institute for Climate Change 1. Motivation Two key questions By which mechanism(s)
More informationOutline. 1 Background Introduction. 3 SST Amphidrome 4 Niño Pipe 5. SST in China Seas. Seasonality Spiral. Eddy Tracking. Concluding Remarks
GHRSST XVIII Outline 1 Background Introduction 2 SST in China Seas 3 SST Amphidrome 4 Niño Pipe 5 Seasonality Spiral 5 stories in S(S)T oceanography 6 7 Eddy Tracking Concluding Remarks 2 Welcome to a
More informationScripps Institution of Oceanography, La Jolla, California. (Manuscript received 3 March 2009, in final form 15 June 2009) ABSTRACT
800 J O U R N A L O F C L I M A T E VOLUME 23 Convection Parameterization, Tropical Pacific Double ITCZ, and Upper-Ocean Biases in the NCAR CCSM3. Part II: Coupled Feedback and the Role of Ocean Heat Transport
More informationMechoso. Tuesday, June 18, 2013
June 19 ETOS telecon Mechoso progress limited to website we should at least suggest metrics progress ultimately, a white paper and journal submission some progress good awareness of european campaigns
More informationThe OCEANS and Indian Monsoon. Climate Variability
The OCEANS and Indian Monsoon Weather, Climate and the OCEANS Climate Variability B. N. Goswami Indian Institute of Tropical Meteorology, Pune 3 rd OSICON, 26-28 Nov, 2013, IITM, Pune The Sun-Earth System
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 informationEffect of Orography on Land and Ocean Surface Temperature
Present and Future of Modeling Global Environmental Change: Toward Integrated Modeling, Eds., T. Matsuno and H. Kida, pp. 427 431. by TERRAPUB, 2001. Effect of Orography on Land and Ocean Surface Temperature
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 informationLecture 15 General Circulation of the Atmosphere and Ocean
Lecture 15 General Circulation of the Atmosphere and Ocean Non-rotating model of atmospheric general circulation Hadley (1735) Cell is induced by uneven distribution of solar heating. Conceptual models
More informationPatchy mixing in the Indian Ocean
CPT: Representing internal-wave driven mixing in global ocean models The Team: Matthew Alford (UW) Brian Arbic (U Michigan) Frank Bryan (NCAR) Eric Chassignet (FSU) Gokhan Danabasoglu (NCAR) Peter Gent
More information- terminology. Further Reading: Chapter 07 of the text book. Outline. - characteristics of ENSO. -impacts
(1 of 14) Further Reading: Chapter 07 of the text book Outline - terminology - characteristics of ENSO -impacts (2 of 14) Today: Introduction We want to look at another source of variability in the atmosphere
More information& La Niña Southern Oscillation Index
El Niño & La Niña Southern Oscillation Index Today: first of the natural changes Lectures 1) El Nino/La Nina: year- decadal changes in climate system 2) Next: Short term natural changes (centuries to millenia)
More informationWintertime intraseasonal SST variability in the tropical South Indian Ocean and Role of Ocean Dynamics in the MJO Initiation
Wintertime intraseasonal SST variability in the tropical South Indian Ocean and Role of Ocean Dynamics in the MJO Initiation Weiqing Han & Yuanlong Li ATOC, University of Colorado at Boulder, Boulder,
More informationGeophysical Fluid Dynamics of the Earth. Jeffrey B. Weiss University of Colorado, Boulder
Geophysical Fluid Dynamics of the Earth Jeffrey B. Weiss University of Colorado, Boulder The Earth is a spinning sphere Coriolis force depends on latitude solar flux depends on latitude Michael Ritter,
More informationThe Multidecadal Atlantic SST - Sahel Rainfall Teleconnection in CMIP5 Simulations
The Multidecadal Atlantic SST - Sahel Rainfall Teleconnection in CMIP5 Simulations A13M-03 Chris Thorncroft*, Elinor R. Martin* and Ben Booth^ *DAES, SUNY Albany ^Met Office, Hadley Centre, UK Sahel Rainfall
More informationRokjin J. Park, Jaein I. Jeong, Minjoong Kim
1. Jeong, J. I. and R. J. Park (2017), Winter monsoon variability and its impact on aerosol concentrations in East Asia, Environmental Pollution, 211, 285-292. 2. Kim, M. J., S. -W. Yeh, and R. J. Park
More informationTHE ATMOSPHERE. WEATHER and CLIMATE. The Atmosphere 10/12/2018 R E M I N D E R S. PART II: People and their. weather. climate?
R E M I N D E R S Two required essays are due by Oct. 30, 2018. (A third may be used for extra credit in place of a Think Geographically essay.) ESSAY TOPICS (choose any two): Contributions of a noted
More informationEvaluation of ACME coupled simulation Jack Reeves Eyre, Michael Brunke, and Xubin Zeng (PI) University of Arizona 4/19/3017
Evaluation of ACME coupled simulation Jack Reeves Eyre, Michael Brunke, and Xubin Zeng (PI) University of Arizona 4/19/3017 1. Introduction We look at surface variables in the tropical Pacific from a coupled
More informationAtmospheric Circulation. Recall Vertical Circulation
Today s topics: Atmospheric circulation: generation of wind patterns on a rotating Earth Seasonal patterns of climate: Monsoons and Sea Breezes Tropical Cyclones: Hurricanes and typhoons Atmospheric Circulation
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 informationInfluence of atmospheric circulation on the Namibian upwelling system and the oxygen minimum zone
International Liege colloquium Influence of atmospheric circulation on the Namibian upwelling system and the oxygen minimum zone Nele Tim, Eduardo Zorita, Birgit Hünicke 09.05.2014 / University of Liège
More informationLong-term warming trend over the Indian Ocean
Long-term warming trend over the Indian Ocean RIO WIO 1. Western Indian Ocean experienced strong, monotonous warming during the last century 2. Links to asymmetry and skewness in ENSO forcing 3. Strong
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 informationAquarius Brings New Understanding to Tropical Instability Waves (TIWs)
Aquarius Brings New Understanding to Tropical Instability Waves (TIWs) Tong Lee1*, Gary Lagerloef2, Michelle M. Gierach1, Hsun-Ying Kao2, Simon Yueh1, Kathleen Dohan2 1NASA Jet Propulsion Laboratory, CalTech,
More informationNumerical Study of the Wind Waves Effect on Air-sea Fluxes in the Yellow Sea during the Cold Wave Events
Numerical Study of the Wind Waves Effect on Air-sea Fluxes in the Yellow Sea during the Cold Wave Events Jianhong WANG Jialin SHI Chunsheng MIAO Mo PENG, Jianmin SHENG NUIST & JMEMFC Liverpool, UK, 10-15
More informationMonsoon variability over South and East Asia: statistical downscaling from CMIP5 models
Monsoon variability over South and East Asia: statistical downscaling from CMIP5 models AMITA PRABHU* Jaiho OH, P. Bhaskar, R.H. Kripalani Indian Institute of Tropical Meteorology Pune 411008, India *Presenter:
More informationTianjun ZHOU.
Ocean-Atmosphere interaction and Interannual monsoon variability Tianjun ZHOU zhoutj@lasg.iap.ac.cn 2 nd ACAM Training School: Observation & modeling of atmospheric chemistry & aerosols in the Asian monsoon
More informationPerformance of three Selected Convective Schemes for Predicting Indian Summer Monsoon Rainfall using RegCM4.4
Performance of three Selected Convective Schemes for Predicting Indian Summer Monsoon Rainfall using RegCM4.4 A.K.M. Saiful Islam Professor Institute of Water and Flood Management Bangladesh University
More informationMesoscale air-sea interaction and feedback in the western Arabian Sea
Mesoscale air-sea interaction and feedback in the western Arabian Sea Hyodae Seo (Univ. of Hawaii) Raghu Murtugudde (UMD) Markus Jochum (NCAR) Art Miller (SIO) AMS Air-Sea Interaction Workshop Phoenix,
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 informationWhy is the ITCZ in the Northern Hemisphere? Role of the AMOC
Why is the ITCZ in the Northern Hemisphere? Role of the AMOC DARGAN M. W. FRIERSON UNIVERSITY OF WASHINGTON YEN-TING HWANG NATIONAL TAIWAN UNIVERSITY NEVEN FUČKAR CATALAN INSTITUTE OF CLIMATE SCIENCE (IC3)
More informationReconciling disparate 20th Century Indo-Pacific ocean temperature trends in the instrumental record and in CMIP5
Reconciling disparate 20th Century Indo-Pacific ocean temperature trends in the instrumental record and in CMIP5 Matt Newman and Amy Solomon CIRES/CDC, University of Colorado and NOAA/ESRL/PSD Solomon,
More informationIndian Ocean Dipole - ENSO - monsoon connections and Overcoming coupled model systematic errors
Indian Ocean Dipole - ENSO - monsoon connections and Overcoming coupled model systematic errors Hilary Spencer, Rowan Sutton and Julia Slingo CGAM, Reading University h.spencer@reading.ac.uk Monsoon -
More informationMonsoon IntraSeasonal Oscillation (MISO) in the Bay of Bengal: Effect of mixed layer and barrier layer on SST and convection
Monsoon IntraSeasonal Oscillation (MISO) in the Bay of Bengal: Effect of mixed layer and barrier layer on SST and convection Weiqing Han Department of Atmospheric and Oceanic Sciences The University of
More informationThe Role of the Wind-Evaporation-Sea Surface Temperature (WES) Feedback in Tropical Climate Variability
The Role of the Wind-Evaporation-Sea Surface Temperature (WES) Feedback in Tropical Climate Variability R. Saravanan Depart ment of At mospheric Sciences, Texas A&M University, College Station Collaborators:
More informationKathleen Dohan. Wind-Driven Surface Currents. Earth and Space Research, Seattle, WA
Updates to OSCAR and challenges with capturing the wind-driven currents. Wind-Driven Surface Currents Kathleen Dohan Earth and Space Research, Seattle, WA ENSO OSCAR Surface currents from satellite fields
More informationRECTIFICATION OF THE MADDEN-JULIAN OSCILLATION INTO THE ENSO CYCLE
RECTIFICATION OF THE MADDEN-JULIAN OSCILLATION INTO THE ENSO CYCLE By William S. Kessler and Richard Kleeman Journal of Climate Vol.13, 1999 SWAP, May 2009, Split, Croatia Maristella Berta What does give
More informationLecture 24. El Nino Southern Oscillation (ENSO) Part 1
Lecture 24 El Nino Southern Oscillation (ENSO) Part 1 The most dominant phenomenon in the interannual variation of the tropical oceanatmosphere system is the El Nino Southern Oscillation (ENSO) over the
More informationSuper-parameterization of boundary layer roll vortices in tropical cyclone models
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Super-parameterization of boundary layer roll vortices in tropical cyclone models PI Isaac Ginis Graduate School of Oceanography
More informationConditions for Offshore Wind Energy Use
Carl von Ossietzky Universität Oldenburg Institute of Physics Energy Meteorology Group Detlev Heinemann Conditions for Offshore Wind Energy Use Detlev Heinemann ForWind Carl von Ossietzky Universität Oldenburg
More informationMean Sea Level Pressure and Wind Climatology over the North Indian Ocean: Quality control, Validation and Biases
Mean Sea Level Pressure and Wind Climatology over the North Indian Ocean: Quality control, Validation and Biases M. Rajeevan and S.K.Dikshit India Meteorological Department Pune. India Introduction India
More informationLocal vs. Remote SST Forcing in Shaping the Asian-Australian Monsoon Variability
Local vs. Remote SST Forcing in Shaping the Asian-Australian Monsoon Variability Tim Li IPRC and Dept. of Meteorology, Univ. of Hawaii Acknowledgement. B. Wang, C.-P. Chang, P. Liu, X. Fu, Y. Zhang, Kug
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 informationSummary of Lecture 10, 04 March 2008 Introduce the Hadley circulation and examine global weather patterns. Discuss jet stream dynamics jet streams
Summary of Lecture 10, 04 March 2008 Introduce the Hadley circulation and examine global weather patterns. Discuss jet stream dynamics jet streams arise because the Coriolis force prevents Hadley-type
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 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 informationSPATIAL AND TEMPORAL VARIATIONS OF INTERNAL WAVES IN THE NORTHERN SOUTH CHINA SEA
SPATIAL AND TEMPORAL VARIATIONS OF INTERNAL WAVES IN THE NORTHERN SOUTH CHINA SEA Weigen Huang (1), Johnny Johannessen (2,3), Werner Alpers (4) Jingsong Yang (1), Xilin Gan (1) (1) Second Institute of
More informationVariability in the tropical oceans - Monitoring and prediction of El Niño and La Niña -
Variability in the tropical oceans - Monitoring and prediction of El Niño and La Niña - Jun ichi HIROSAWA Climate Prediction Division Japan Meteorological Agency SST anomaly in Nov. 1997 1 ( ) Outline
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 informationOn the buoyancy-driven theory of the Atlantic Meridional Overturning Circulation
On the buoyancy-driven theory of the Atlantic Meridional Overturning Circulation Rémi Tailleux Department of Meteorology, University of Reading AMOC Meeting, Brest, 4 May 217 Outline A survey of thermodynamic
More informationSeasonal Circulation in the Yellow and the East China Seas driven by the monsoon winds
Seasonal Circulation in the Yellow and the East China Seas driven by the monsoon winds Ig-Chan Pang 1 and Jae-Hong Moon 2 1 : Cheju National University 2 : Department of Earth System Science and Technology,
More informationLecture 14. Heat lows and the TCZ
Lecture 14 Heat lows and the TCZ ITCZ/TCZ and heat lows While the ITCZ/TCZ is associated with a trough at low levels, it must be noted that a low pressure at the surface and cyclonic vorticity at 850 hpa
More informationOCN 201 Lab Fall 2009 OCN 201. Lab 9 - El Niño
OCN 201 Lab Fall 2009 OCN 201 Lab 9 - El Niño El Niño is probably one of the most widely publicized oceanic phenomena. If there s one single reason for that it s probably the fact that El Niño s presence
More informationTropical Circulation Changes Across Forcing Agents. Timothy M. Merlis McGill University
Tropical Circulation Changes Across Forcing Agents Timothy M. Merlis McGill University Conclusions We cannot straightforwardly apply the energetic ITCZ framework to monsoons. Conclusions We cannot straightforwardly
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 informationLecture 18: El Niño. Atmosphere, Ocean, Climate Dynamics EESS 146B/246B
Lecture 18: El Niño Atmosphere, Ocean, Climate Dynamics EESS 146B/246B El Niño Transient equatorial motions: Kelvin and Rossby waves. Positive feedback mechanism associated with air-sea coupling. Atmospheric
More informationThe Influence of Ocean Surface Waves on Offshore Wind Turbine Aerodynamics. Ali Al Sam
The Influence of Ocean Surface Waves on Offshore Wind Turbine Aerodynamics Ali Al Sam What I m going to wear today? Do I need to leave early to get to work? Taking buss or riding bike? Where will we drink
More informationObservations of Seasonal Variation in the Ekman Layer
JUNE 1998 SCHUDLICH AND PRICE 1187 Observations of Seasonal Variation in the Ekman Layer REBECCA R. SCHUDLICH School of Oceanography, University of Washington, Seattle, Washington JAMES F. PRICE Woods
More informationVERTICAL DISTRIBUTION OF PLANKTON IN THE MIXED LAYER, TURBULENCE AND CLIMATE CHANGE
VERTICAL DISTRIBUTION OF PLANKTON IN THE MIXED LAYER, TURBULENCE AND CLIMATE CHANGE Macías, D. (1,2), Ramírez Romero, E. (3),Rodríguez, A. (4), García, C.M. (3),Bruno, M. (5) (1) Scripps Institution of
More informationThe Causes of Ocean Circulation
Activity 1 The Causes of Ocean Circulation Goals In this activity you will: Understand the effect of the wind on the movement of water at the ocean surface. Understand the effect of the Coriolis force
More informationSubsurface Ocean Temperature Indices for Central-Pacific and Eastern-Pacific Types of El Niño and La Niña Events
Subsurface Ocean Temperature Indices for Central-Pacific and Eastern-Pacific Types of El Niño and La Niña Events Jin-Yi Yu 1*, Hsun-Ying Kao 2, Tong Lee 3, and Seon Tae Kim 1 1 Department of Earth System
More informationWaves, Turbulence and Boundary Layers
Waves, Turbulence and Boundary Layers George L. Mellor Program in Atmospheric and Oceanic Sciences Princeton University Princeton NJ 8544-71 phone: (69) 258-657 fax: (69) 258-285 email: glm@splash.princeton.edu
More informationAdditive effect of two solar forcing mechanisms and influences on. tropical Pacific climate. National Center for Atmospheric Research
Additive effect of two solar forcing mechanisms and influences on tropical Pacific climate Gerald A. Meehl Julie Arblaster, Fabrizio Sassi, Katja Matthes, and Harry van Loon National Center for Atmospheric
More informationConvection Parameterization, Tropical Pacific Double ITCZ, and Upper-Ocean Biases in the NCAR CCSM3. Part I: Climatology and Atmospheric Feedback
15 AUGUST 2009 S O N G A N D Z H A N G 4299 Convection Parameterization, Tropical Pacific Double ITCZ, and Upper-Ocean Biases in the NCAR CCSM3. Part I: Climatology and Atmospheric Feedback XIAOLIANG SONG
More informationRole 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 informationReview for the second quarter. Mechanisms for cloud formation
Review for the second quarter Mechanisms for cloud formation 1 Rising air expands and cools; Sinking air compresses and warms. (18) (24) Dry adiabatic lapse rate (10 o C/km): the rate of temperature decrease
More informationHow fast will be the phase-transition of 15/16 El Nino?
How fast will be the phase-transition of 15/16 El Nino? YOO-GEUN HAM D E P A R T M E N T O F O C E A N O G R A P H Y, C H O N N A M N A T I O N A L U N I V E R S I T Y 2015/16 El Nino outlook One of strongest
More informationImpact of a coupled ocean wave-tide-circulation system on coastal. modeling
Impact of a coupled ocean wave-tide-circulation system on coastal modeling Il-Ju Moon Graduate School of Oceanography, University of Rhode Island, South Ferry Road, Narragansett, RI 02882, USA * Corresponding
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 informationACAM 2017 Guangzhou 5-9 June 2017 R. Müller and B. Vogel et al.
Mitglied der Helmholtz-Gemeinschaft Long-range transport pathways of tropospheric source gases originating in Asia into the northern lower stratosphere during the Asian monsoon season 2012 Bärbel Vogel,
More information3 The monsoon currents in an OGCM
3 The monsoon currents in an OGCM The observations show that both Ekman drift and geostrophy contribute to the surface circulation in the north Indian Ocean. The former decays rapidly with depth, but the
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 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 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 informationHui Wang, Mike Young, and Liming Zhou School of Earth and Atmospheric Sciences Georgia Institute of Technology Atlanta, Georgia
Water Cycle between Ocean and Land and Its Influence on Climate Variability over the South American-Atlantic Regions as Determined by SeaWinds Scatterometers Rong Fu Hui Wang, Mike Young, and Liming Zhou
More informationMechanistic links between the tropical Atlantic and the Indian monsoon in the absence of El Nino Southern Oscillation events
Mechanistic links between the tropical Atlantic and the Indian monsoon in the absence of El Nino Southern Oscillation events Vijay Pottapinjara 1*, Roxy Mathew Koll2, Raghu Murtugudde3, Girish Kumar M
More informationFactors that determine water movement. Morphometry Structure of stratification Wind patterns
Water Movement Factors that determine water movement Morphometry Structure of stratification Wind patterns Turbulent and laminar flow Laminar flow - smooth, unidirectional flow Low velocity Rare in nature
More information