Carbon dioxide s direct weakening of the tropical circulation: from comprehensive climate models to axisymmetric Hadley cell theory
|
|
|
- Briana McCoy
- 5 years ago
- Views:
Transcription
1 Carbon dioxide s direct weakening of the tropical circulation: from comprehensive climate models to axisymmetric Hadley cell theory Timothy M. Merlis McGill University
2 Key point The spatial structure of radiative forcing provokes tropical circulation changes
3 Key point The spatial structure of radiative forcing provokes tropical circulation changes & these direct circulation changes are more robust than temperature-dependent ones
4 Direct vs. Temperature Mediated Climate Changes Many climate changes are proportional to the amount of global warming: dx s s 2
5 Direct vs. Temperature Mediated Climate Changes But radiative forcing agents can also directly change aspects of climate: dx s s 2 Direct tropical circulation weakening robustly simulated in CMIP5 GCMs Bony et al. (2013)
6 Key point The spatial structure of radiative forcing provokes tropical circulation changes & these direct circulation changes are more robust than temperature dependent ones IPCC AR5: 45+ figures of structure of radiative forcing
7 Key point The spatial structure of radiative forcing provokes tropical circulation changes & these direct circulation changes are more robust than temperature dependent ones IPCC AR5: 45+ figures of aerosol radiative forcing, but 0 of carbon dioxide s structure
8 cld + wv Spatial structure of CO2 radiative forcing Annual mean Wm 2 { Zhang & Huang (2014) The climatological cloud and w.v. distribution masks (=reduces) the CO2 radiative forcing in regions of mean ascent.
9 CO2 radiative forcing is spatially inhomogeneous! Required atmospheric energy transport of mean tropical circulations decreases.
10 Sketch of cloud masking of CO2 radiative forcing Surface radiation & fluxes also affect circulation energetics key for land-sea circulation changes Shaw & Voigt (2016)
11 CO2 radiative forcing is spatially inhomogeneous! Merlis (2015): Direct weakening of tropical circulations from masked CO2 radiative forcing. PNAS
12 GFDL ESM2M Tropical circulation response to 4 CO2 I =! #! ", I/I : GFDL AM2.1 ~15-25% of century-scale weakening is a direct CO2 weakening
13 Masking of forcing deactivated Removing masking by altering radiative transfer GFDL AM2.1 GFDL AM2.1 Direct CO2 weakening of tropical circulations decreases as masking is deactivated!
14 Idealized Models: Aquaplanet & One-layer Prescribed cloud A 1 CO 2 Sigma (p/p s ) 0.2 Aquaplanet GCM: tropical cloud ~2% direct weakening like comprehensive BC GCMs (kg s 1 ) C Aquaplanet GCM: clear sky radiation GCM from Merlis et al. (2013) CO 2
15 Idealized Models: Aquaplanet & One-layer C 1 CO 2 Sigma (p/p s ) 0.2 Aquaplanet GCM: clear sky radiation (kg s 1 ) CO 2 v or 10 v (m s 1 ) Latitude 10 9 (kg s 1 ) Remove cloud =) remove direct CO2 weakening
16 (K) DB Idealized Models: Aquaplanet & One-layer This mechanism is based on energetic Hadley cell theory No cloud Tropical cloud (Held & Hou, 1980) axisymmetric models with appropriate thermal forcing will simulate it RCE Pot. Single layer Temperature Model Change =) ) D EARTH, ATMOS AND PLANETARY Single layer Model 0.2 ) v or 10 v (m s 1 ) (K) No cloud v Tropical 10 cloud v Latitude weakening of tropical circulation in idealized aquaplanet atmospheric GCM -mean mass streamfunction (black contours with negative dashed, contour 2 (colors with contour interval kg s 1 ), and cloud fraction (magenta d with (C) clear-sky radiation. Positive streamfunction values are countern. (B) Vertically integrated potential temperature change between 4 CO 2 SLM from Sobel & Schneider (2009) implemented by Tim Cronin ~2% direct weakening across model hierarchy ) v or 10 v (m s 1 ) v 10 v Latitude
17 CO2 radiative forcing is spatially inhomogeneous! Low clouds: little impact on longwave & big impact on shortwave
18 Differences in spatial structure of radiation forcing Radiative forcing (W m 2 ) Zhang & Huang (2014) +2% S 0 4 CO S # (1 p ) Latitude Expect differences in circulation change =) ( P & TC) from affect on moist energetics! CERES EBAF
19 Direct circulation response to CO2, solar forcing fixed SST, altered forcing In aquaplanet version of GFDL s HiRAM 50-km GCM Merlis et al. (2013b) Comprehensive BC GFDL AM2.1 also has forcing dependent direct mean circulation response
20 Direct circulation response to CO2, solar forcing fixed SST, altered forcing In aquaplanet version of GFDL s HiRAM 50-km GCM 4 CO %S p (hpa) p (hpa) Latitude (kg s 1 ) Latitude (kg s 1 ) Comprehensive BC GFDL AM2.1 also has forcing dependent direct mean circulation response
21 CO2 forces larger ITCZ shifts than comparable S0 increase These shifts are temperature-dependent (not direct) changes P (mm day 1 ) CO 2 Solar Latitude Viale & Merlis (submitted) 3 shift vs. 2.5 shift of latitude of maximum P with same global-mean radiative forcing
22 CO2 forces larger ITCZ shifts than comparable S0 increase Bischoff & Schneider (2014) Solar forcing provokes an increase in tropical energy input because it is larger in the tropical mean than CO2 forcing
23 CO2 forces larger ITCZ shifts than comparable S0 increase Bischoff & Schneider (2014) Solar forcing provokes an increase in tropical energy input because it is larger in the tropical mean than CO2 forcing
24 Key point The spatial structure of radiative forcing provokes tropical circulation changes & the circulation responses over a range of models in the hierachy can be anticipated from energy transport requirements
25 Key point The spatial structure of radiative forcing provokes tropical circulation changes & the circulation responses over a range of models in the hierachy can be anticipated from energy transport requirements Thank you!
26 CO2 forces larger ITCZ shifts than comparable S0 increase Radiative Forcing (W m 2 ) CO2 S Latitude Solar forcing provokes an increase in tropical energy input because it is larger in the tropical mean than CO2 forcing
An Interconnected Planet
An Interconnected Planet How Clouds, Aerosols, and the Ocean Cause Distant Rainfall Anomalies Dargan M. W. Frierson University of Washington CESM Workshop, 6-15-15 New Connections Recent research has uncovered
Report to WGNE: Selected GFDL Research Activities
Report to WGNE: Selected GFDL Research Activities GFDL s Atmospheric Model-4 (AM4) Excerpted from a presentation by Chris Golaz at the 2014 American Meteorological Society Annual Meeting, Climate Processes
Water Vapor and the Dynamics of Climate Changes
Water Vapor and the Dynamics of Climate Changes Tapio Schneider California Institute of Technology (based on Rev. Geophys. article with Xavier Levine and Paul O Gorman) Water vapor dynamics in warming
Does Humidity s Seasonal Cycle Affect the Annual-Mean Tropical Precipitation Response to Sulfate Aerosol Forcing?
15 FEBRUARY 2016 M E R L I S 1451 Does Humidity s Seasonal Cycle Affect the Annual-Mean Tropical Precipitation Response to Sulfate Aerosol Forcing? TIMOTHY M. MERLIS McGill University, Montreal, Quebec,
Patterns and impacts of ocean warming and heat uptake
Patterns and impacts of ocean warming and heat uptake Shang-Ping Xie Scripps Inst of Oceanography, UCSD Ocean warming & circulation change Ocean heat uptake & meridional overturning circulation Global
Understanding Climate Feedbacks Using Radiative Kernels
Understanding Climate Feedbacks Using Radiative Kernels Brian Soden Rosenstiel School for Marine and Atmospheric Science University of Miami Overview of radiative kernels Recent advances in understanding
Sensitivity of Intertropical Convergence Zone Movement to the Latitudinal Position of Thermal Forcing
15 APRIL 2014 S E O E T A L. 3035 Sensitivity of Intertropical Convergence Zone Movement to the Latitudinal Position of Thermal Forcing JEONGBIN SEO AND SARAH M. KANG School of Urban and Environmental
Aquaplanet warming experiments with CAM: a tale of the subtropics
Aquaplanet warming experiments with CAM: a tale of the subtropics AMWG meeting, 12 February 2018, NCAR Thomas Toniazzo Uni Research (?) & Bjerknes Centre Bergen, Norway Plan of this talk A) Intro B) Slab
The effect of ocean mixed layer depth on climate in slab ocean aquaplanet ABSTRACT
Climate Dynamics manuscript No. (will be inserted by the editor) 1 2 The effect of ocean mixed layer depth on climate in slab ocean aquaplanet experiments. 3 Aaron Donohoe Dargan Frierson 4 5 Manuscript
Lecture 3. Background materials. Planetary radiative equilibrium TOA outgoing radiation = TOA incoming radiation Figure 3.1
Lecture 3. Changes in planetary albedo. Is there a clear signal caused by aerosols and clouds? Outline: 1. Background materials. 2. Papers for class discussion: Palle et al., Changes in Earth s reflectance
The role of land-sea contrast in the circulation response to seasonal insolation and global warming
The role of land-sea contrast in the circulation response to seasonal insolation and global warming Tiffany A. Shaw Columbia University University of Chicago Thanks to A. Voigt, I Simpson, R. Seager What
Consequences for Climate Feedback Interpretations
CO 2 Forcing Induces Semi-direct Effects with Consequences for Climate Feedback Interpretations Timothy Andrews and Piers M. Forster School of Earth and Environment, University of Leeds, Leeds, LS2 9JT,
How de-coupling cloud radiative feedbacks strengthens the AMOC
How de-coupling cloud radiative feedbacks strengthens the AMOC Elizabeth Maroon1, Eleanor Middlemas2, Jennifer Kay1, Brian Medeiros3 1CIRES, University of Colorado Boulder, 2University of Miami, 3National
An Introduction to Climate Modeling
An Introduction to Climate Modeling A. Gettelman & J. J. Hack National Center for Atmospheric Research Boulder, Colorado USA Outline What is Climate & why do we care Hierarchy of atmospheric modeling strategies
How Accurate is the GFDL GCM Radiation Code? David Paynter,
Radiation Processes in the GFDL GCM: How Accurate is the GFDL GCM Radiation Code? David Paynter, Alexandra Jones Dan Schwarzkopf, Stuart Freidenreich and V.Ramaswamy GFDL, Princeton, New Jersey 13th June
Radiative-Convective Instability
Radiative-Convective Instability Kerry Emanuel, Allison Wing, and Emmanuel Vincent Massachusetts Institute of Technology Self-Aggregation of Deep Moist Convection Cloud Clusters Tropical Cyclone Genesis
Lecture 2: Light And Air
Lecture 2: Light And Air Earth s Climate System Earth, Mars, and Venus Compared Solar Radiation Greenhouse Effect Thermal Structure of the Atmosphere Atmosphere Ocean Solid Earth Solar forcing Land Energy,
Moist static energy budget diagnostics for. monsoon research. H. Annamalai
Moist static energy budget diagnostics for monsoon research H. Annamalai JJAS Precipitation and SST Climatology I III II Multiple regional heat sources - EIO and SPCZ still experience high precipitation
Radiative-Convective Instability
Radiative-Convective Instability Kerry Emanuel, Allison Wing, and Emmanuel Vincent Massachusetts Institute of Technology Self-Aggregation of Deep Moist Convection Cloud Clusters Tropical Cyclone Genesis
SUPPLEMENTARY INFORMATION
In the format provided by the authors and unedited. SUPPLEMENTARY INFORMATION DOI: 10.1038/NGEO2988 Hemispheric climate shifts driven by anthropogenic aerosol-cloud interactions Eui-Seok Chung and Brian
An Introduction to Coupled Models of the Atmosphere Ocean System
An Introduction to Coupled Models of the Atmosphere Ocean System Jonathon S. Wright jswright@tsinghua.edu.cn Atmosphere Ocean Coupling 1. Important to climate on a wide range of time scales Diurnal to
Grand Challenges in Global Circulation Dynamics
Grand Challenges in Global Circulation Dynamics Tapio Schneider ETH Zurich, Caltech (Source: CLAUS, http://badc.nerc.ac.uk/data/claus/) Grand Challenges in Global Circulation Dynamics Tapio Schneider ETH
Surface Winds along Eastern Boundary Upwelling Systems in Future Climate Scenarios
Surface Winds along Eastern Boundary Upwelling Systems in Future Climate Scenarios René D. Garreaud and Mark Falvey Department of Geophysics Universidad de Chile Outline EBUS Climate background Future
Climate Modeling Dr. Jehangir Ashraf Awan Pakistan Meteorological Department
Climate Modeling Dr. Jehangir Ashraf Awan Pakistan Meteorological Department Source: Slides partially taken from A. Pier Siebesma, KNMI & TU Delft Key Questions What is a climate model? What types of climate
Radiative-Convective Models. The Hydrological Cycle Hadley Circulation. Manabe and Strickler (1964) Course Notes chapter 5.1
Climate Modeling Lecture 8 Radiative-Convective Models Manabe and Strickler (1964) Course Notes chapter 5.1 The Hydrological Cycle Hadley Circulation Prepare for Mid-Term (Friday 9 am) Review Course Notes
Climate Dynamics (PCC 587): Hydrologic Cycle and Global Warming
Climate Dynamics (PCC 587): Hydrologic Cycle and Global Warming D A R G A N M. W. F R I E R S O N U N I V E R S I T Y O F W A S H I N G T O N, D E P A R T M E N T O F A T M O S P H E R I C S C I E N C
The Climate Sensitivity of the Community Climate System Model: CCSM3. Jeffrey T. Kiehl*, Christine A. Shields, James J. Hack and William D.
For JCLI CCSM Special Issue The Climate Sensitivity of the Community Climate System Model: CCSM3 Jeffrey T. Kiehl*, Christine A. Shields, James J. Hack and William D. Collins National Center for Atmospheric
Coupled high-latitude climate feedbacks and their impact on atmospheric. heat transport
1 Coupled high-latitude climate feedbacks and their impact on atmospheric 2 heat transport 3 Nicole Feldl 4 Department of Earth and Planetary Sciences, University of California, Santa Cruz, California
Robustness of Dynamical Feedbacks from Radiative Forcing: 2% Solar versus 2 3 CO 2 Experiments in an Idealized GCM
2256 J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S VOLUME 69 Robustness of Dynamical Feedbacks from Radiative Forcing: 2% Solar versus 2 3 CO 2 Experiments in an Idealized GCM MING CAI
Sensitivity of zonal-mean circulation to air-sea roughness in climate models
Sensitivity of zonal-mean circulation to air-sea roughness in climate models Inna Polichtchouk & Ted Shepherd Royal Meteorological Society National Meeting 16.11.2016 MOTIVATION Question: How sensitive
Parameterizing large-scale dynamics using the weak temperature gradient approximation
Parameterizing large-scale dynamics using the weak temperature gradient approximation Adam Sobel Columbia University NCAR IMAGe Workshop, Nov. 3 2005 In the tropics, our picture of the dynamics should
On the interpretation of inter-model spread in CMIP5 climate sensitivity
Climate Dynamics manuscript No. (will be inserted by the editor) 1 2 On the interpretation of inter-model spread in CMIP5 climate sensitivity estimates 3 Jessica Vial Jean-Louis Dufresne Sandrine Bony
Some remarks on climate modeling
Some remarks on climate modeling A. Gettelman & J. J. Hack National Center for Atmospheric Research Boulder, Colorado USA Selected overheads by Doug Nychka Outline Hierarchy of atmospheric modeling strategies
The influence of regional feedbacks on circulation sensitivity
GEOPHYSICAL RESEARCH LETTERS, VOL.???, XXXX, DOI:1.129/, 1 2 The influence of regional feedbacks on circulation sensitivity N. Feldl, 1 D. M. W. Frierson 2, and G. H. Roe 3 Corresponding author: N. Feldl,
Simulated variability in the mean atmospheric meridional circulation over the 20th century
GEOPHYSICAL RESEARCH LETTERS, VOL. 36, L06704, doi:10.1029/2008gl036741, 2009 Simulated variability in the mean atmospheric meridional circulation over the 20th century Damianos F. Mantsis 1 and Amy C.
Climate of an Earth- like Aquaplanet: the high- obliquity case and the <dally- locked case
Climate of an Earth- like Aquaplanet: the high- obliquity case and the
Interannual variability of top-ofatmosphere. CERES instruments
Interannual variability of top-ofatmosphere albedo observed by CERES instruments Seiji Kato NASA Langley Research Center Hampton, VA SORCE Science team meeting, Sedona, Arizona, Sep. 13-16, 2011 TOA irradiance
SUPPLEMENTARY INFORMATION
SUPPLEMENTARY INFORMATION DOI: 10.1038/NGEO1854 Anthropogenic aerosol forcing of Atlantic tropical storms N. J. Dunstone 1, D. S. Smith 1, B. B. B. Booth 1, L. Hermanson 1, R. Eade 1 Supplementary information
An Introduction to Physical Parameterization Techniques Used in Atmospheric Models
An Introduction to Physical Parameterization Techniques Used in Atmospheric Models J. J. Hack National Center for Atmospheric Research Boulder, Colorado USA Outline Frame broader scientific problem Hierarchy
Impacts of historical ozone changes on climate in GFDL-CM3
Impacts of historical ozone changes on climate in GFDL-CM3 Larry Horowitz (GFDL) with: Vaishali Naik (GFDL), Pu Lin (CICS), and M. Daniel Schwarzkopf (GFDL) WMO (2014) Figure ADM 5-1 1 Response of tropospheric
EFFECTS OF TROPICAL CYCLONES ON OCEAN HEAT TRANSPORT AS SIMULATED BY A HIGH RESOLUTION COUPLED GENERAL CIRCULATION MODEL
ISTITUTO NAZIONALE di GEOFISICA e VULCANOLOGIA EFFECTS OF TROPICAL CYCLONES ON OCEAN HEAT TRANSPORT AS SIMULATED BY A HIGH RESOLUTION COUPLED GENERAL CIRCULATION MODEL E. Scoccimarro 1 S. Gualdi 12, A.
BJORN STEVENS, SANDRINE BONY, MARK WEBB
CLOUDS ON-OFF KLIMATE INTERCOMPARISON EXPERIMENT (COOKIE) BJORN STEVENS, SANDRINE BONY, MARK WEBB 1. Synopsis Cloud-radiative effects are expected to control many aspects of the current and future climates,
Climate Feedbacks from ERBE Data
Climate Feedbacks from ERBE Data Why Is Lindzen and Choi (2009) Criticized? Zhiyu Wang Department of Atmospheric Sciences University of Utah March 9, 2010 / Earth Climate System Outline 1 Introduction
Thermodynamic Control on the Poleward shift of the Extratropical Jet in. Climate Change Simulations - Role of systematic lifting of high clouds and
1 Thermodynamic Control on the Poleward shift of the Extratropical Jet in 2 Climate Change Simulations - Role of systematic lifting of high clouds and 3 their radiative effects 4 Ying Li and David W. J.
Cloud feedbacks on dynamics and SST in an equatorial mock-walker circulation
Cloud feedbacks on dynamics and SST in an equatorial mock-walker circulation Equator (f=0) p W Pacific Warm SST x E Pacific Colder SST Ocean heat loss Very cold deep ocean Understand cloud feedbacks on:
Supplemental Material for Transient climate impacts for scenarios of aerosol emissions from Asia: a story of coal versus gas
Supplemental Material for Transient climate impacts for scenarios of aerosol emissions from Asia: a story of coal versus gas B. S. Grandey, H. Cheng, and C. Wang December 22, 2015 List of Tables 1 Annual
The Climate Sensitivity of the Community Climate System Model Version 3 (CCSM3)
2584 J O U R N A L O F C L I M A T E VOLUME 19 The Climate Sensitivity of the Community Climate System Model Version 3 (CCSM3) JEFFREY T. KIEHL, CHRISTINE A. SHIELDS, JAMES J. HACK, AND WILLIAM D. COLLINS
Southern Ocean albedo, inter hemispheric energy transports and the double ITCZ: global impacts of biases in a coupled model
Clim Dyn (2017) 48:2279 2295 DOI 10.1007/s00382-016-3205-5 Southern Ocean albedo, inter hemispheric energy transports and the double ITCZ: global impacts of biases in a coupled model Matt Hawcroft 1 Jim
Lecture 9: Climate Sensitivity and Feedback Mechanisms
Lecture 9: Climate Sensitivity and Feedback Mechanisms Basic radiative feedbacks (Plank, Water Vapor, Lapse-Rate Feedbacks) Ice albedo & Vegetation-Climate feedback Cloud feedback Biogeochemical feedbacks
Impact of sea surface temperatures on African climate. Alessandra Giannini
Impact of sea surface temperatures on African climate Alessandra Giannini alesall@iri.columbia.edu Outline: Intro/Motivation: demand-driven science, use of seasonal climate prediction, adaptation to climate
A hierarchical approach to climate sensitivity Bjorn Stevens
A hierarchical approach to climate sensitivity Bjorn Stevens Based on joint work with: T. Becker, S. Bony, D. Coppin, C Hohenegger, B. Medeiros, D. Fläschner, K. Reed as part of the WCRP Grand Science
no eddies eddies Figure 3. Simulated surface winds. Surface winds no eddies u, v m/s φ0 =12 φ0 =0
References Held, Isaac M., and Hou, A. Y., 1980: Nonlinear axially symmetric circulations in a nearly inviscid atmosphere. J. Atmos. Sci. 37, 515-533. Held, Isaac M., and Suarez, M. J., 1994: A proposal
Recent Developments at NOAA/GFDL
Recent Developments at NOAA/GFDL WGNE-2012, Toulouse FRANCE V. Balaji balaji@princeton.edu NOAA/GFDL and Princeton University 8 November 2012 Balaji (Princeton and GFDL) Developments at GFDL 8 November
How Will Low Clouds Respond to Global Warming?
How Will Low Clouds Respond to Global Warming? By Axel Lauer & Kevin Hamilton CCSM3 UKMO HadCM3 UKMO HadGEM1 iram 2 ECHAM5/MPI OM 3 MIROC3.2(hires) 25 IPSL CM4 5 INM CM3. 4 FGOALS g1. 7 GISS ER 6 GISS
ATMOS 5140 Lecture 1 Chapter 1
ATMOS 5140 Lecture 1 Chapter 1 Atmospheric Radiation Relevance for Weather and Climate Solar Radiation Thermal Infrared Radiation Global Heat Engine Components of the Earth s Energy Budget Relevance for
The Climate Sensitivity of the Community Climate System Model: CCSM3. Jeffrey T. Kiehl*, Christine A. Shields, James J. Hack and William D.
For JCLI CCSM Special Issue The Climate Sensitivity of the Community Climate System Model: CCSM3 Jeffrey T. Kiehl*, Christine A. Shields, James J. Hack and William D. Collins National Center for Atmospheric
How to tackle long-standing uncertainties?
How to tackle long-standing uncertainties? Sandrine Bony LMD/IPSL, CNRS, Paris Thanks to all members of the ClimaConf project Bjorn Stevens (MPI) & the WCRP Grand Challenge team Colloque ClimaConf; 20-21
(c) (a) (d) (b) JJA DJF. V850 Hulu Cave. V850 Hulu Cave V1000 V1000. Dongge Cave. Dongge Cave. Lake Huguang Maar.
NCEP-DOE (1981-2010) TraCE21ka (a) (c) JJA Dongge Cave V850 Hulu Cave Dongge Cave V850 Hulu Cave (b) (d) DJF Lake Huguang Maar V1000 Lake Huguang Maar V1000 Supplementary Figure 1 Climatology of EASM and
Do climate models over-estimate cloud feedbacks?
Do climate models over-estimate cloud feedbacks? Sandrine Bony CNRS, LMD/IPSL, Paris with contributions from Jessica Vial (LMD), David Coppin (LMD) Florent Brient (ETH), Tobias Becker (MPI), Kevin Reed
Reduced Complexity Frameworks for Exploring Physics Dynamics Coupling Sensitivities
Reduced Complexity Frameworks for Exploring Physics Dynamics Coupling Sensitivities Kevin A. Reed & Adam R. Herrington School of Marine and Atmospheric Sciences Stony Brook University, Stony Brook, New
Saharan Dust Induced Radiation-Cloud-Precipitation-Dynamics Interactions
Saharan Dust Induced Radiation-Cloud-Precipitation-Dynamics Interactions William K. M. Lau NASA/GSFC Co-authors: K. M. Kim, M. Chin, P. Colarco, A. DaSilva Atmospheric loading of Saharan dust Annual emission
Characterizing the Hadley Circulation Response through Regional Climate Feedbacks
15 JANUARY 2016 F E L D L A N D B O R D O N I 613 Characterizing the Hadley Circulation Response through Regional Climate Feedbacks N. FELDL AND S. BORDONI California Institute of Technology, Pasadena,
Supporting Information for Relation of the double-itcz bias to the atmospheric energy budget in climate models
GEOPHYSICAL RESEARCH LETTERS Supporting Information for Relation of the double-itcz bias to the atmospheric energy budget in climate models Ori Adam 1, Tapio Schneider 1,2, Florent Brient 1, and Tobias
Climate change with an iris-effect. Thorsten Mauritsen and Bjorn Stevens Max Planck Institute for Meteorology, Hamburg
Climate change with an iris-effect! Thorsten Mauritsen and Bjorn Stevens Max Planck Institute for Meteorology, Hamburg AR4 Temperature anomaly ( C) w.r.t. 1961 1990 2 1.5 1 0.5 0 } AR4 CMIP3 } Observations
Climate Models & Climate Sensitivity: A Review
Climate Models & Climate Sensitivity: A Review Stroeve et al. 2007, BBC Paul Kushner Department of Physics, University of Toronto Recent Carbon Dioxide Emissions 2 2 0 0 0 0 7 6 x x Raupach et al. 2007
ATM S 111, Global Warming Climate Models
ATM S 111, Global Warming Climate Models Jennifer Fletcher Day 27: July 29, 2010 Using Climate Models to Build Understanding Often climate models are thought of as forecast tools (what s the climate going
Modeling the Downward Influence of Stratospheric Final Warming events
Modeling the Downward Influence of Stratospheric Final Warming events Lantao Sun Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign Walter A. Robinson Division of Atmospheric
Temperature extremes in the United States: Quantifying the response to aerosols and greenhouse gases with implications for the warming hole
Temperature extremes in the United States: Quantifying the response to aerosols and greenhouse gases with implications for the warming hole Nora Mascioli, Arlene Fiore, Michael Previdi, Gustavo Correa
Convection Trigger: A key to improving GCM MJO simulation? CRM Contribution to DYNAMO and AMIE
Convection Trigger: A key to improving GCM MJO simulation? CRM Contribution to DYNAMO and AMIE Xiaoqing Wu, Liping Deng and Sunwook Park Iowa State University 2009 DYNAMO Workshop Boulder, CO April 13-14,
Land Ocean Warming Contrast over a Wide Range of Climates: Convective Quasi-Equilibrium Theory and Idealized Simulations
4000 J O U R N A L O F C L I M A T E VOLUME 26 Land Ocean Warming Contrast over a Wide Range of Climates: Convective Quasi-Equilibrium Theory and Idealized Simulations MICHAEL P. BYRNE AND PAUL A. O GORMAN
GEO1010 tirsdag
GEO1010 tirsdag 31.08.2010 Jørn Kristiansen; jornk@met.no I dag: Først litt repetisjon Stråling (kap. 4) Atmosfærens sirkulasjon (kap. 6) Latitudinal Geographic Zones Figure 1.12 jkl TØRR ATMOSFÆRE Temperature
Variability in Global Top-of-Atmosphere Shortwave Radiation Between 2000 And 2005
Variability in Global Top-of-Atmosphere Shortwave Radiation Between 2000 And 2005 Norman G. Loeb NASA Langley Research Center Hampton, VA Collaborators: B.A. Wielicki, F.G. Rose, D.R. Doelling February
Deciphering the desiccation trend of the South Asian monsoon hydroclimate in a warming world
Deciphering the desiccation trend of the South Asian monsoon hydroclimate in a warming world R. Krishnan Centre for Climate Change Research (CCCR) Indian Institute of Tropical Meteorology, Pune Collaborators:
Lecture 8. Monsoons and the seasonal variation of tropical circulation and rainfall
Lecture 8 Monsoons and the seasonal variation of tropical circulation and rainfall According to the second hypothesis, the monsoon is a manifestation of the seasonal variation of the tropical circulation
Coupling between Arctic feedbacks and changes in poleward energy transport
GEOPHYSICAL RESEARCH LETTERS, VOL. 38,, doi:10.1029/2011gl048546, 2011 Coupling between Arctic feedbacks and changes in poleward energy transport Yen Ting Hwang, 1 Dargan M. W. Frierson, 1 and Jennifer
Schema8c Global Climate Model
Schema8c Global Climate Model Horizontal Grid (Latitude-Longitude) Vertical Grid (Height or Pressure) NOAA/ GFDL s CLIMATE and EARTH SYSTEM MODELING Geophysical Fluid Dynamics Laboratory Understanding
Quantifying Climate Feedbacks Using Radiative Kernels
3504 J O U R N A L O F C L I M A T E VOLUME 21 Quantifying Climate Feedbacks Using Radiative Kernels BRIAN J. SODEN Rosenstiel School for Marine and Atmospheric Science, University of Miami, Miami, Florida
Climate modeling: 1) Why? 2) How? 3) What?
Climate modeling: 1) Why? 2) How? 3) What? Matthew Widlansky mwidlans@hawaii.edu 1) Why model the climate? Hawaii Fiji Sachs and Myhrvold: A Shifting Band of Rain 1 Evidence of Past Climate Change? Mean
Energy of Midlatitude Transient Eddies in Idealized Simulations of Changed Climates
15 NOVEMBER 2008 O G O R M A N A N D S C H N E I D E R 5797 Energy of Midlatitude Transient Eddies in Idealized Simulations of Changed Climates PAUL A. O GORMAN* AND TAPIO SCHNEIDER California Institute
Projected future increase of tropical cyclones near Hawaii. Hiroyuki Murakami, Bin Wang, Tim Li, and Akio Kitoh University of Hawaii at Manoa, IPRC
Projected future increase of tropical cyclones near Hawaii Hiroyuki Murakami, Bin Wang, Tim Li, and Akio Kitoh University of Hawaii at Manoa, IPRC Review of effect of global warming on TC activity Knutson
Regional Tropical Precipitation Change Mechanisms in ECHAM4/OPYC3 under Global Warming*
1SEPTEMBER 2006 C H O U E T A L. 4207 Regional Tropical Precipitation Change Mechanisms in ECHAM4/OPYC3 under Global Warming* CHIA CHOU Research Center for Environmental Changes, Academia Sinica, Taipei,
Radiative-Convective Instability. Kerry Emanuel Massachusetts Institute of Technology
Radiative-Convective Instability Kerry Emanuel Massachusetts Institute of Technology Program Basic radiative-convective equilibrium Macro-instability of the RC state Some consequences Radiative Equilibrium
A Flexible Climate Model For Use In Integrated Assessments
A Flexible Climate Model For Use In Integrated Assessments Andrei P. Sokolov and Peter H. Stone Center for Global Change Science. Massachusetts Institute of Technology, 77 Massachusetts Ave. Room 54-1312,
Diagnosis of Relative Humidity Changes in a Warmer Climate Using Tracers of Last Saturation
Diagnosis of Relative Humidity Changes in a Warmer Climate Using Tracers of Last Saturation 8 March, 2011 Jonathon Wright Department of Applied Mathematics & Theoretical Physics University of Cambridge
Constraints on the Interannual Variation of Global and Regional Topof-Atmosphere. Inferred from MISR Measurements. Roger Davies
Constraints on the Interannual Variation of Global and Regional Topof-Atmosphere Radiation Budgets Inferred from MISR Measurements Roger Davies Physics Department University of Auckland Background: basic
Tropical Cyclones - Ocean feedbacks: Effects on the Ocean Heat Transport as simulated by a High Resolution Coupled General Circulation Model
ISTITUTO NAZIONALE di GEOFISICA e VULCANOLOGIA Tropical Cyclones - Ocean feedbacks: Effects on the Ocean Heat Transport as simulated by a High Resolution Coupled General Circulation Model E. Scoccimarro
Equilibrium Response of an Atmosphere Mixed Layer Ocean Model to Different Radiative Forcing Agents: Global and Zonal Mean Response
1SEPTEMBER 2008 Y O S H I M O R I A N D B R O C C O L I 4399 Equilibrium Response of an Atmosphere Mixed Layer Ocean Model to Different Radiative Forcing Agents: Global and Zonal Mean Response MASAKAZU
Seasonal dependence of the effect of Arctic greening on tropical precipitation
Seasonal dependence of the effect of Arctic greening on tropical precipitation Sarah M. Kang 1*, Baek-Min Kim 2, Dargan M. W. Frierson 3, Su-Jong Jeong 4, Jeongbin Seo 1, and Yoojeong Chae 1 1 School of
Extratropical and Polar Cloud Systems
Extratropical and Polar Cloud Systems Gunilla Svensson Department of Meteorology & Bolin Centre for Climate Research George Tselioudis Extratropical and Polar Cloud Systems Lecture 1 Extratropical cyclones
The Hadley and Walker Circulation Changes in Global Warming Conditions Described by Idealized Atmospheric Simulations
The Hadley and Walker Circulation Changes in Global Warming Conditions Described by Idealized Atmospheric Simulations Guillaume Gastineau, Laurent Li, Hervé Le Treut To cite this version: Guillaume Gastineau,
Aerosol Radiative Forcing DEPARTMENT OF PHYSICS The AeroCom Prescribed Experiment: Towards the Quantification of Host Model Errors
Aerosol Radiative Forcing DEPARTMENT OF PHYSICS The AeroCom Prescribed Experiment: Towards the Quantification of Host Model Errors AeroCom Meeting, Reykjavik, Island 10/10/2008 Philip Stier Atmospheric,
Understanding Global Environmental Trends and Projections. Ants Leetmaa Geophysical Fluid Dynamics Laboratory Princeton, NJ 08542
Understanding Global Environmental Trends and Projections Ants Leetmaa Geophysical Fluid Dynamics Laboratory Princeton, NJ 08542 Climate Scenarios Used for Attribution Studies of Climate Variability and
Isentropic analysis and atmospheric circulation.
Isentropic analysis and atmospheric circulation. Olivier Pauluis Courant Institute of Mathematical Sciences Thanks to Arnaud Czaja, Robert Korty and Frederic Laliberte Sept. 1, 2009 Keck Institute for
Schematic from Vallis: Rossby waves and the jet
Schematic from Vallis: Rossby waves and the jet Schematic from Vallis: Rossby waves and the jet A Barotropic Model Stochastic stirring + linear damping Force barotropic vort. eqn. with white noise in storm
Origin of the seasonally-dependent response of the subtropical highs
Origin of the seasonally-dependent response of the subtropical highs and tropical precipitation in a warming climate Fengfei Song, L. Ruby Leung, Jian Lu, and Lu Dong Atmospheric Sciences and Global Change
Lecture 6: Radiation Transfer. Global Energy Balance. Reflection and Scattering. Atmospheric Influences on Insolation
Lecture 6: Radiation Transfer Global Energy Balance terrestrial radiation cooling Solar radiation warming Global Temperature atmosphere Vertical and latitudinal energy distributions Absorption, Reflection,
Lecture 6: Radiation Transfer
Lecture 6: Radiation Transfer Vertical and latitudinal energy distributions Absorption, Reflection, and Transmission Global Energy Balance terrestrial radiation cooling Solar radiation warming Global Temperature
COURSE CLIMATE SCIENCE A SHORT COURSE AT THE ROYAL INSTITUTION
COURSE CLIMATE SCIENCE A SHORT COURSE AT THE ROYAL INSTITUTION DATE 4 JUNE 2014 LEADER CHRIS BRIERLEY Course Outline 1. Current climate 2. Changing climate 3. Future climate change 4. Consequences 5. Human
The effect of ocean mixed layer depth on climate in slab ocean aquaplanet experiments
The effect of ocean mixed layer depth on climate in slab ocean aquaplanet experiments The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters.