An Evaluation of the Surface Radiation Budget Over North America for a Suite of Regional Climate Models Student: Marko Markovic Director: Colin Jones Université.

Slides:

Advertisements

Similar presentations

3) Empirical estimate of surface longwave radiation Use an empirical estimate of the clear-sky surface downward longwave radiation (SDLc) to estimate the.

Advertisements

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.

EUMETSAT 2006 Helsinki Exploitation of GERB/SEVIRI data for evaluation of the Met Office global forecast model Richard Allan, Tony Slingo Environmental.

GERB/CERES Meeting 2006 Exeter Evaluation of clouds and radiation in the Met Office global forecast model using GERB/SEVIRI data Richard Allan, Tony Slingo.

A thermodynamic model for estimating sea and lake ice thickness with optical satellite data Student presentation for GGS656 Sanmei Li April 17, 2012.

Implementation of lakes in the Canadian Regional Climate Model (CRCM): towards CRCM 5 Andrey Martynov, Rene Laprise, Laxmi Sushama University of Quebec.

James Dewar presenting liquid hydrogen: Physics Today, March 2008.

GEM Climate Performance over Arctic *** A Simulation on MARVIN *** Minwei QIAN, Colin Jones, Katja Winger.

Water Vapor and Cloud Feedbacks Dennis L. Hartmann in collaboration with Mark Zelinka Department of Atmospheric Sciences University of Washington PCC Summer.

Evaluation of ECHAM5 General Circulation Model using ISCCP simulator Swati Gehlot & Johannes Quaas Max-Planck-Institut für Meteorologie Hamburg, Germany.

Surface Skin/Air Temperature and LW Flux Calculation Y-C. Zhang and W.B. Rossow LandFlux Conference CNES/CESBIO, Toulouse, France May 28 – 31, 2007.

By : Kerwyn Texeira. Outline Definitions Introduction Model Description Model Evaluation The effect of dust nuclei on cloud coverage Conclusion Questions.

Earth System Data Record (ESDR) for Global Evapotranspiration. Eric Wood Princeton University ©Princeton University.

Radiative Properties of Clouds SOEE3410 Ken Carslaw Lecture 3 of a series of 5 on clouds and climate Properties and distribution of clouds Cloud microphysics.

Radiative Properties of Clouds SOEE3410 Ken Carslaw Lecture 3 of a series of 5 on clouds and climate Properties and distribution of clouds Cloud microphysics.

Radiative Properties of Clouds ENVI3410 : Lecture 9 Ken Carslaw Lecture 3 of a series of 5 on clouds and climate Properties and distribution of clouds.

Investigating Representation Errors in Inversions of Satellite CO 2 Retrievals K.D. Corbin, A.S. Denning, N.C. Parazoo Department of Atmospheric Science.

Climate Science Branch, Science Directorate NASA Langley Research Center Shashi K. Gupta, Paul W. Stackhouse Jr.*, Taiping Zhang, and J. Colleen Mikovitz.

The Radiative Budget of an Atmospheric Column in Tropical Western Pacific Zheng Liu 1 Thomas Ackerman 1,2, Sally McFarlane 2, Jim Mather 2, University.

Outline Background, climatology & variability Role of snow in the global climate system Indicators of climate change Future projections & implications.

Radiative forcing - measured at Earth‘s surface - corroborate the increasing greenhouse effect R.Philpona 1, B.Dürr 1, C.May 1, A.Ohmura 2 and M.Wild 2.

GIST 23, DWD Offenbach, April 2005 Diurnal Cycle of Surface Radiation Budget G. L. Smith, P. E. Mlynczak, S. K. Gupta and P. W. Stackhouse.

Grigory Nikulin and Colin Jones Rossby Centre Swedish Meteorological and Hydrological Institute and CORDEX-Africa modeling groups Simulated precipitation.

Surface Radiative Fluxes over the Pan-Arctic Land Region: Variability and Trends Xiaogang Shi 1, Martin Wild 2, and Dennis P. Lettenmaier 1 1 Department.

GEM in the GEWEX Transferability Study Zav Kothavala, Colin Jones, Katja Winger, Bernard Dugas & Ayrton Zadra.

Radiation Group 3: Manabe and Wetherald (1975) and Trenberth and Fasullo (2009) – What is the energy balance of the climate system? How is it altered by.

Evaluation and applications of a new satellite-based surface solar radiation data set for climate analysis Jörg Trentmann1, Richard Müller1, Christine.

Long-term analyses of surface shortwave irradiance, clouds and aerosols over China T. Hayasaka 1, K. Kawamoto 1, and G.Y. Shi 2 1.Research Institute for.

Center for Satellite Applications and Research (STAR) Review 09 – 11 March 2010 GOES Solar Radiation Products in Support of Renewable Energy Istvan Laszlo.

Liang, et al. MODIS/VIIRS Science Team Meeting May 15, 2008, BWI Hilton Hotel Mapping land surface radiation budget from MODIS Liang, S., Wang, K., Townshend,

1st Progress meeting ELDAS The ELDORADO surface radiation system Bart vd Hurk & Dirk Meetschen et al (see ELDAS web-page)

Diagnostic results from regional-scale climate simulations with the GEM model: Part 1 – GEM Global Bernard Dugas Meteorological Research Division.

Clouds in the Southern midlatitude oceans Catherine Naud and Yonghua Chen (Columbia Univ) Anthony Del Genio (NASA-GISS)

Evaluating the transferability of RCMs Zav Kothavala & Colin Jones.

Clear sky Net Surface Radiative Fluxes over Rugged Terrain from Satellite Measurements Tianxing Wang Guangjian Yan

Arctic Cloud Biases in CCSM3 Steve Vavrus Center for Climatic Research University of Wisconsin.

Influence of Clouds on Surface Heat Fluxes in an Energy Deficient Regime Dea Doklestic G&G 570 Class Project Heat Budget Group Presentation, June 16, 2011.

Overview of Climate V. Ramaswamy (“Ram”) U.S. National Oceanic and Atmospheric Administration Geophysical Fluid Dynamics Laboratory Princeton University.

Promoting Satellite Applications in the TPE Water and Energy Cycle Studies: Chance and Challenge Kun Yang Institute of Tibetan Plateau Research Chinese.

Evaluating forecasts of the evolution of the cloudy boundary layer using radar and lidar observations Andrew Barrett, Robin Hogan and Ewan O’Connor Submitted.

09-Nov-2004Brussels, 09-Nov CM-SAF Surface Radiation Budget: First Results and Plans R. Hollmann, A. Gratzki, R. Mueller O. Sievers Deutscher Wetterdienst.

Chapter 3 Atmospheric Radiative Transfer and Climate To date, we have learned 1)The greenhouse effects, through understanding the simplest greenhouse model,

Use of a high-resolution cloud climate data set for validation of Rossby Centre climate simulations Presentation at the EUMETSAT Meteorological Satellite.

Ocean Surface heat fluxes

Page 1© Crown copyright 2006 Modelled & Observed Atmospheric Radiation Balance during the West African Dry Season. Sean Milton, Glenn Greed, Malcolm Brooks,

Sophia Antipolis, 17 octobre 2003 HELIOSAT-II. What is Heliosat? Raw image Irradiation (energy)

MODIS Science Team Meeting, Land Discipline (Jan. 27, 2010) Land Surface Radiation Budgets from Model Simulations and Remote Sensing Shunlin Liang, Ph.D.

Clouds and radiation … recent hot topics Stefan Kinne.

AEROCOM AODs are systematically smaller than MODIS, with slightly larger/smaller differences in winter/summer. Aerosol optical properties are difficult.

Evaluation of Cloud-Radiation Interaction in the Canadian GEM Model Using ARM Observations Danahé Paquin-Ricard 1 Colin Jones 1, Paul Vaillancourt 2 1.

Using GERB and CERES data to evaluate NWP and Climate models over the Africa/Atlantic region Richard Allan, Tony Slingo, Ali Bharmal Environmental Systems.

ATOC Nov Radiative Forcing by Greenhouse Gases and its Representation in Global Models William Collins National.

Sea Ice, Solar Radiation, and SH High-latitude Climate Sensitivity Alex Hall UCLA Department of Atmospheric and Oceanic Sciences SOWG meeting January 13-14,

Evaluating the Met Office global forecast model using GERB data Richard Allan, Tony Slingo Environmental Systems Science Centre, University of Reading.

Cloud-radiation interaction as simulated by the Canadian GEM model compared to ARM observations Danahé Paquin-Ricard Director: Colin Jones Codirector:

Variability of Arctic Cloudiness from Satellite and Surface Data Sets University of Washington Applied Physics Laboratory Polar Science Center Axel J.

Do ISCCP & SRB Radiation Products Show Effects of Anomalies in Ancillary Data ? Ehrhard Raschke (Hamburg) Stefan Kinne (Hamburg) Ely Duenas (GISS, NY)

Sea-ice albedo, clouds, and cloud-radiation interactions in the Arctic in the CMIP5 model ensemble Johannes Karlsson and Gunilla Svensson Department of.

A Brief Introduction to CRU, GHCN, NCEP2, CAM3.5

Xiquan Dong, Baike Xi, Erica Dolinar, and Ryan Stanfield

Simulating daily precipitation variability.

Dust, vapour & cloud in greenhouse Earth

Annual cycle of cloud fraction and surface radiative cloud forcing in the South-East Pacific Stratocumulus region Virendra P. Ghate and Bruce A. Albrecht.

Entrapment An important mechanism for shortwave 3D cloud radiative effects and its inclusion in the SPARTACUS radiative transfer model Robin Hogan, Mark.

On HRM3 (a.k.a. HadRM3P, a.k.a. PRECIS) North American simulations

Surface Fluxes and Model Error An introduction

Ming-Dah Chou Department of Atmospheric Sciences

Xiaogang Shi Martin Wild Dennis P. Lettenmaier

Investigator: B. Lin Integrated satellite global energy data sets for climate analysis and modeling studies Investigator: B. Lin

Quantifying the uncertainties of reanalyzed Arctic cloud-radiation properties using satellite data (Dong) MODIS MERRA MERRA annual mean CF is 9% higher.

Presentation transcript:

An Evaluation of the Surface Radiation Budget Over North America for a Suite of Regional Climate Models Student: Marko Markovic Director: Colin Jones Université du Québec à Montréal

 Evaluate parameters of SRB (surface radiation budget) and cloud cover in RCMs against surface observations for North America.  The parameters which will be evaluated are: global solar (direct+diffuse), radiation, and downward longwave atmospheric radiation.  SW and LW are the main terms in surface energy balance that control evolution of surface temperature and moisture.  Three regional models used in this study are: 1.GEM-LAM - Limited version of GEM model, Canada (Coté et al.1998) 2. CRCM - The Canadian Regional Climate Model, (Caya and Laprise, 1999) 3. RCA3 - The Rossby Centre Regional Atmosphere model, Sweden (Jones et al.2004)  The observation data come from the NOAA SURFRAD network

Climatological mean annual cycle ( ). GEM-LAM and CRCM simulate ISR very well in winter while overestimate in summer with 20-30W/m2 biases. RCA3 is fairly accurate in summer but shows the biggest biases in winter and spring. DLR is underestimated by GEM-LAM and CRCM in winter while both models show good results for other seasons. This underestimate has already been seen by several studies in the past and is related to the parametrisation of water vapor spectra in winter conditions. CRCM gives a systematic underestimate of 20W/m2 through the entire annual cycle a possible cloud emissivity problem. PDF comparison Probability density functions of time series, period UTC, season DJF Clear Sky < 10 % of cloud cover Overcasted Sky > 90 % of cloud cover Shortwave: All-sky biases are mostly influenced by biases produced in overcast conditions. Longwave: Principal errors in all- sky conditions, for GEM-LAM and RCA3 come from clear-sky while for CRCM from cloudy-sky biases. All-sky Cloud Free Cloudy Comparison of Probability Density Function of Cloud Fraction Models overestimate clear-sky (0 - 10%), and underestimate occurrences of cloudy-sky (90-100%)

Differences between the models and ERA40, DJF 4-year mean, over entire N. America SW: GEM-LAM et MRCC good representation, RCA3 overestimates LW: underestimate by all models CC: underestimate by all models - Underestimate of LW downward atmospheric radiation in winter, by all models - Cancellations of errors in cloud coverage and in SW clear sky radiation in RCA3 model - Error in diurnal cycle of clouds in all models -Systematic underestimate of LW radiation in CRCM -DJF LW radiation biases are due to clear-sky radiation in GEM-LAM and RCA3, and cloudy-sky radiation fluxes in CRCM. -Comparison over entire N. America showed similar biases in respective models as in 6 SURFRAD station comparisons. Summary