Trends in Tropical Water Vapor (1980-2004): Satellite and GCM Comparison Satellite Observed ---- Model Simulated __ Held and Soden 2006: Robust Responses.

Slides:

Advertisements

Similar presentations

© University of Reading Chapman Conference on Atmospheric Water Vapor and Its Role in Climate Tropospheric Water Vapour and.

Advertisements

© University of Reading 2009 EUMETSAT Monitoring changes in precipitation and radiative energy using satellite data and.

Contrasting Precipitation Responses to Warming: Models and Satellite Data Richard P. Allan 1 and Brian J. Soden 2 1 Environmental Systems Science Centre,

Links Between Clear-sky Radiation, Water Vapour and the Hydrological Cycle Richard P. Allan 1, Viju O. John 2 1 Environmental Systems Science Centre, University.

Implications of trends and variability in low-level water vapour Richard P. Allan Department of Meteorology/NCAS climate, University of Reading Thanks.

University of Reading 2007www.nerc-essc.ac.uk/~rpa Observed and simulated changes in water vapour, precipitation and the clear-sky.

Changes in Water Vapour, Clear-sky Radiative Cooling and Precipitation

1 Dynamical Polar Warming Amplification and a New Climate Feedback Analysis Framework Ming Cai Florida State University Tallahassee, FL 32306

Understanding Feedback Processes Outline Definitions Magnitudes and uncertainties Geographic distributions and priorities Observational requirements.

Considering Climate Variability & Change TOGETHER Lisa Goddard International Research Institute for Climate & Society The Earth Institute of Columbia University.

Understanding Sahel Rainfall Variability: Progress and Challenges Michela Biasutti in collaboration with Alessandra Giannini.

Annular Modes of Extra- tropical Circulation Judith Perlwitz CIRES-CDC, University of Colorado.

Climate Change: Science and Modeling John Paul Gonzales Project GUTS Teacher PD 6 January 2011.

(Mt/Ag/EnSc/EnSt 404/504 - Global Change) Climate Models (from IPCC WG-I, Chapter 8) Climate Models Primary Source: IPCC WG-I Chapter 8 - Climate Models.

Scaling Laws, Scale Invariance, and Climate Prediction

Geophysical Fluid Dynamics Laboratory Review June 30 - July 2, 2009 Geophysical Fluid Dynamics Laboratory Review June 30 - July 2, 2009.

Double ITCZ Phenomena in GCM’s Marcus D. Williams.

Global Warming and Climate Sensitivity Professor Dennis L. Hartmann Department of Atmospheric Sciences University of Washington Seattle, Washington.

Climate modeling Current state of climate knowledge – What does the historical data (temperature, CO 2, etc) tell us – What are trends in the current observational.

Satellite Atmospheric Science at Kiruna Space Campus Mathias Milz Luleå University of Technology Department of Space Science Kiruna.

Richard P. Allan 1 | Brian J. Soden 2 | Viju O. John 3 | Igor I. Zveryaev 4 Department of Meteorology Click to edit Master title style Water Vapour (%)

Testing the Super-Greenhouse Thermostat with EOS observations Dan Feldman YLY Sunday meeting 10/30/05.

The importance of clouds. The Global Climate System

Ocean Response to Global Warming William Curry Woods Hole Oceanographic Institution Wallace Stegner Center March 3, 2006.

Protecting our Health from Climate Change: a Training Course for Public Health Professionals Chapter 2: Weather, Climate, Climate Variability, and Climate.

The last century of warming…. GISS SAT England et al. [2014] Nature Climate Change.

Climate Feedbacks Brian Soden Rosenstiel School of Marine and Atmospheric Science University of Miami.

1 Geophysical Fluid Dynamics Laboratory Review June 30 - July 2, 2009.

(Mt/Ag/EnSc/EnSt 404/504 - Global Change) Observed Surface & Atmosphere (from IPCC WG-I, Chapter 3) Observed Changes in Surface and Atmosphere Climate.

Global Warming Inez Fung University of California, Berkeley April 2007.

High Climate Sensitivity Suggested by Satellite Observations: the Role of Circulation and Clouds AGU Fall Meeting, San Francisco, CA, 9-13 December, 2013.

What is the Difference Between Weather and Climate?

Climate Change: From Global Predictions to Local Action Mathematical Sciences Research Institute April

Observational and model evidence for positive low-level cloud feedback Robert J. Burgman and Amy C. Clement Rosenstiel School of Marine and Atmospheric.

Tobias Bayr and Dietmar Dommenget The Inhomogeneous Tropospheric Warming as the Driver of Tropical Sea Level Pressure and Walker Circulation Changes Helmholtz.

Projection of Global Climate Change. Review of last lecture Rapid increase of greenhouse gases (CO 2, CH 4, N 2 O) since 1750: far exceed pre-industrial.

Interannual Variabilities of High Clouds Seen by AIRS and Comparison with CAM5 simulations Yuk Yung, Hui Su, Katie, Hazel et al.

(Mt/Ag/EnSc/EnSt 404/504 - Global Change) Climate Models (from IPCC WG-I, Chapter 10) Projected Future Changes Primary Source: IPCC WG-I Chapter 10 - Global.

Evaluation of climate models, Attribution of climate change IPCC Chpts 7,8 and 12. John F B Mitchell Hadley Centre How well do models simulate present.

Human fingerprints on our changing climate Neil Leary Changing Planet Study Group June 28 – July 1, 2011 Cooling the Liberal Arts Curriculum A NASA-GCCE.

Research Needs for Decadal to Centennial Climate Prediction: From observations to modelling Julia Slingo, Met Office, Exeter, UK & V. Ramaswamy. GFDL,

The Relation Between SST, Clouds, Precipitation and Wave Structures Across the Equatorial Pacific Anita D. Rapp and Chris Kummerow 14 July 2008 AMSR Science.

Science Weather Review

© University of Reading Hadley Centre Workshop: Improving predictions of the large- scale hydrological cycle Agreement/discrepancies.

Mixed-phase cloud physics and Southern Ocean cloud feedback in climate models. T 5050 Liquid Condensate Fraction (LCF) Correlation between T5050 and ∆LWP.

Trends in Tropical Water Vapor ( ): Satellite and GCM Comparison Satellite Observed ---- Model Simulated __ Held and Soden 2006: Robust Responses.

Monitoring and Modeling Climate Change Are oceans getting warmer? Are sea levels rising? To answer questions such as these, scientists need to collect.

1 Greenhouse Gas Emissions, Global Climate Models, and California Climate Change Impacts.

PAPER REVIEW R Kirsten Feng. Impact of global warming on the East Asian winter monsoon revealed by nine coupled atmosphere-ocean GCMs Masatake.

Global Modeling Status Thomas Lachlan-Cope 1 and Keith M. Hines 2 1 British Antarctic Survey Cambridge, UK 2 Polar Meteorology Group Byrd Polar Research.

HAPPY 25 TH !!!! Cloud Feedback George Tselioudis NASA/GISS.

“It's tough to make predictions, especially about the future” HO fail all WEVER… HO fail all WEVER… “You can see a lot by looking” Yogi Berra High Pressure.

Ocean Response to Global Warming/Global Change William Curry Woods Hole Oceanographic Institution Environmental Defense May 12, 2005 Possible changes in.

Active/Passive Microwave Observations Provide Essential Climate Variables for Studying Hydrologic Cycle Probably the Greatest Consequences of Our Warming.

The tropics in a changing climate Chia Chou Research Center for Environmental Changes Academia Sinica October 19, 2010 NCU.

Geophysical Fluid Dynamics Laboratory Presented by Andrew Wittenberg Geophysical Fluid Dynamics Laboratory 17 October 2012 Tropical Climate Change and.

What is the Difference Between Weather and Climate?

Studies of the tropical upper troposphere using MODIS data A. E. Dessler Earth System Science Interdisciplinary Center University of Maryland S. Sherwood,

PAGODA WP3 - Observed changes in the global water cycle Richard P. Allan, Chunlei Liu Department of Meteorology/NCAS Climate, University.

Key ingredients in global hydrological response to external forcing Response to warming => Increased horizontal moisture fluxes => Poleward expansion of.

The importance of upper tropospheric water and cloud for climate change Richard P. Allan Department of Meteorology/NCAS Climate, University of Reading.

The Study of the Weather and Climate

What Has Caused the Observed Warming over Recent Decades? Pressure?

Global hydrological forcing: current understanding

Recent Climate Change Modeling Results

Walker Circulation Slowdown and Indo-Pacific Climate

Current global and regional changes in atmospheric water vapour

Project Title: The Sensitivity of the Global Water and Energy Cycles:

How will precipitation change under global warming?

IPCC Model Uncertainty in Representing the

Presentation transcript:

Trends in Tropical Water Vapor ( ): Satellite and GCM Comparison Satellite Observed ---- Model Simulated __ Held and Soden 2006: Robust Responses of the hydrological cycle to global warming, J Climate, 19, Total column water vapor over tropical oceans has increased over the past 20 years Models accurately reproduce the observed variability and moistening of the tropical atmosphere.

Impact of Convectively Detrained Cloud Ice On Upper Tropospheric Water Vapor Satellite Observations (AIRS/MLS) GCM Simulations (IPCC AR4) John and Soden, 2006: Does convectively-detrained cloud ice enhance water vapor feedback?, Geophys. Res Lett., 33, L Spatial distribution of upper tropospheric water vapor is strongly correlated with amount of cloud ice Models capture observed correlation between cirrus ice and upper tropospheric water vapor. Water vapor feedback is insensitive to strength of relationship between cloud ice and water vapor

A Comparison of AIRS Water Vapor Retrievals with GCM Simulations John and Soden, 2007: Temperature and humidity biases in IPCC AR4 models, in preparation. Zonal Annual Mean Bias in Relative Humidity Compared to AIRS Retrievals ECMWF/NCEP Reanalyses IPCC AR4 GCMs Both IPCC AR4 GCMs and NCEP/ECMWF reanalyses produce a more humid troposphere than indicated by AIRS retrievals.

Weakening of the Walker Circulation due to Anthropogenically-Forced Changes in the Hydrological Cycle Vecchi et al. 2006: Weakening of the tropical Pacific atmospheric circulation... Nature, 441, Change in Sea Level Pressure ( ) ObservedModel Simulated Climate models predict a weakening of the Walker circulation in response to hydrological cycle changes in a warmer climate. Observations from 20 th Century reveal changes in SLP consistent with model projected weakening of Walker Cell.