Jadwiga Richter

Introduction

Jadwiga (Yaga) H. Richter is a scientist in the Climate Change Research (CCR) section of the Climate and Global Dynamics (CGD) Laboratory at NCAR. Yaga received a B. S. of Science in Mathematics from the State University of New York at Purchase in 1997, and a Ph.D. in Atmospheric Sciences from University of Washington in 2002. She also holds a graduate certificate in Instructional Design from University of Wisconsin. Yaga has spent the majority of her scientific career at NCAR beginning with the ASP postdoctoral fellowship, with the exception of an Education and Outreach fellowship at University of Colorado.

Yaga’s areas of expertise and scientific interests include gravity waves and their parameterizations in global climate models, middle atmospheric dynamics, quasi-biennial oscillation (QBO), whole atmosphere climate modeling, subseasonal-to-seasonal prediction, and geoengineering. Yaga has developed the first source spectrum parameterization of convectively generated gravity waves for climate models and has changed the parameterization of gravity waves in the Whole Atmosphere Community Climate Model (WACCM) to be entirely source-based. Yaga implemented a convective momentum transport parameterization in the Community Atmosphere Model (CAM) which has significantly improved the representation of El Nino Southern Oscillation, and with her work on gravity waves and vertical resolution, she was able to obtain a very realistic QBO in the NCAR CAM and WACCM.

Yaga has pioneered the development of the subseasonal-to-seasonal (S2S) prediction research framework with the Community Earth System Model (CESM) and co-leads the CESM Earth System Prediction Working Group (ESPWG). The first study utilizing two versions of CESM1 (one with and one without a well-resolved stratosphere) showed surprisingly that overall surface prediction skill on the subseasonal time-scale was not improved by the inclusion of a better-resolved stratosphere. The surface prediction skill of CESM2(WACCM) is also very similar to that of CESM2(CAM), suggesting that on subseasonal time-scales other factors might be more important to surface prediction than the stratosphere, or because models underestimate teleconnections, the benefits of a well-resolved stratosphere are not realized. S2S prediction systems with CESM2(CAM6) and CESM2(WACCM6) run now in real-time and contribute the week 3-4 forecast to the NOAA experimental weeks 3-4 outlook.

Yaga has led or co-led climate intervention or geoengineering research efforts at NCAR since 2015. The efforts have been centered on examining the effects of sulfur dioxide (SO2) injections on the troposphere and stratosphere in CESM with WACCM as it’s atmospheric component. This research has led to the development of the Geoengineering Large Ensemble (GLENS) which provides a community dataset for evaluation of impacts of geoengineering using stratospheric aerosols. In 2021, Yaga began leading a new set of climate intervention simulations with CESM2(WACCM) in support of the Solar Climate Research Initiative supported by SilverLining NGO.

Yaga is the co-Pi of the DOE-NCAR Cooperative Agreement Cooperative Agreement To AnaLyze variability, change and predictabilitY in the earth SysTem (CATALYST). The CATALYST team performs foundational coordinated research in a team-oriented collaborative environment aimed at advancing a robust understanding of modes of Earth system variability and change using models, observations and process studies.

Education

  • Graduate Certificate in Instructional Design
    University of Wisconsin, 2015
  • Ph.D. Atmospheric Sciences
    University of Washington, 2002
  • B.S. Mathematics
    State University of New York, 1997

Current Research Projects

  • CATALYST: Cooperative Agreement To AnaLyze variability, change and predictabilitY in the earth SysTem
  • Sources of subseasonal-to-seasonal predictability
  • Climate intervention/geoengineering research using stratospheric aerosols
  • QBO-MJO connection
  • High vertical resolution modeling with CAM and WACCM
  • Quasi-biennial Oscillation Initiative (QBOi)
  • CESM (WACCM) development

Education & Outreach

Yaga has a longstanding passion for education and outreach to audiences of all levels. In graduate school, she was the outreach coordinator for the Department of Atmospheric Sciences at the University of Washington. While an ASP Postdoctoral Fellow she developed the “Climate and Weather: The Two Go Together” Girl Scouts program at NCAR, which a few years later became a part of the UCAR Center for Science Education. During this time she also taught Weather and Climate for teachers. Yaga also designed a “WeatherWise” badge program and kit for Girl Scouts while at CIRES/University of Colorado. More recently, Yaga led the development of the NCAR Explorer Series which now continues as an integral part of the NCAR Education and Outreach offerings.

Field of Expertise

  • Atmospheric Dynamics
  • Climate Science
  • Subseasonal prediction
  • Geoengineering/Climate Intervention

Specialty

  • Dynamics
  • Dynamics: Middle Atmosphere
  • Modeling: Global

UMatch Collaborative Activity

  • PhD thesis committee
  • Graduate student mentor/host at NCAR|UCAR
  • Collaborative research partner

Publications

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2021
2020
2019
2018

Butchart, N., and Coauthors, 2018: Overview of experiment design and comparison of models participating in phase 1 of the SPARC Quasi-Biennial Oscillation initiative (QBOi). Geoscientific Model Development, 11, 1009-1032, Doi: 10.5194/gmd-11-1009-2018

Butchart, N., J. Anstey, K. Hamilton, S. Osprey, A. Bushell, Y. Kawatani, F. Lott, J. Scinocca, T. Stockdale, P. Braesicke, C. Cagnazzo, C. Chen, R. Garcia, J. Garia-Serrano, L. Gray, L. Holt, T. Kerzenmacher, Y-H Kim, P. Lin, J. McCormack, C. McLandress, H. Naoe, H. Pohlmann, J. H. Richter, A. Scaife, V. Schenzinger, F. Serva, S. Watanabe, K. Yoshida, S. Yukimoto 2018: Overview of experiment design and comparison of models participating in the SPARC Quasi-Biennial Oscillation initiative (QBOi), Geophy. Mod. Dev, 11, 1009-2032

Tilmes, S., J. H. Richter, M. Mills, B. Kravitz, D. MacMartin, F. Vitt, J. Tribbia, J. F. Lamarque, 2018: “Contrasting differences of stratospheric SO2 injections with altitudes outside the Equator”, J. Geoph. Res., Accepted

Richter, J. H., B. Kravitz, D. MacMartin, S. Tilmes, M. Mills, J. Tribbia, F. Vitt, J. F. Lamarque, 2018: “Stratospheric response in the first geoengineering simulation meeting multiple surface climate objectives”, J. Geoph. Res, Accepted

Tilmes, S., Richter J. H., B. Kravitz, D. MacMartin, M. Mills, I. Simpson, A. S. Glanville, J. T. Fasullo, A. S. Philips, J-F. Lamarque, J. Tribbia, J. Edwards, S. Mickelson, S. Gosh 2018: “CESM1(WACCM) Stratospheric Aerosol Geoengineering Large Ensemble (GLENS) Project”, BAMS, Accepted

Garcia R. R. and J. H. Richter: The momentum budget of the quasi-biennial oscillation in the high vertical 
resolution CESM1(WACCM), 2018, J. Atmos. Sci, Submitted

Fasullo, J. T., Tilmes, S., Richter J. H., B. Kravitz, D. MacMartin, M. Mills, I. R. and Simpson, 2018:“Persistent Polar Ocean Warming in a Strategically Geoengineered Climate”, Nature Geo., Submitted

D. G. MacMartin, W. Wang, B. Kravitz, S. Times, J. H. Richter, M. J. Mills 2018: “Timescale for detecting the climate response to stratospheric aerosol geoengineering”, JGR-Atmospheres, Submitted

Wang. X, Y. Wu, W-W. Tung, J. H. Richter, S. Tilmes, C. Orbe, Y. Huang, Y. Via, D. E. Kinnison, 2018: “The simulation of stratospheric water vapor over the Asian summer monsoon region in WACCM models”, JGR, Submitted

J. H. Richter, S. Tilmes, B. Kravitz, D. MacMartin, I. Simpson, M. Mills: “Building Confidence and Reducing Risks with Strategic Geoengineering”, AMS Annual Meeting, Jan 2018

J. H. Richter: “Vertical resolution in the next generation CAM & WACCM”, AMWG working group meeting, Boulder, CO Feb 2018

J. H. Richter, L. Sun, and J. Perlwitz: “S2S simulations with 30-level an 46-level CESM1”, NOAA MAPP S2S Taskforce, Feb 2018

J. H. Richter, U. Niemeier, S. Tilmes, & M. Mills: “Comparing changes in the Quasi-biennial Oscillation in the presence of SO2 injections in GCMs”, GeoMiP, Zurich, Switzerland

2017

Polvani, L. M., L. Sun, A. H. Butler, J. H. Richter and C. Deser, 2017: “Distinguishing Stratospheric Sudden Warmings from ENSO as Key Drivers of Wintertime Climate Variability over the North Atlantic and Eurasia ”, J. Climate, 30, Doi: 10.1175/JCLI-D-16-0277.1

Mills, M., S. Tilmes, J. H. Richter, B. Kravitz, D. G. MacMartin, A. A. Glanville, J. J. Tribbia, J. F. Lamarque, F. Vitt, A. Schmidt, A. Gettelman, R. B. Neale, C. Hannay, J. T. Bacmeister, D. E. Kinnison: 2017: ‘CESM1(WACCM) at 1o: a new tool for chemistry-climate studies of interactive stratospheric aerosols”, J. Geoph. Res., 122, 13,061–13,078. Doi: 10.1002/ 2017JD027006

Richter, J. H., S. Tilmes, M. Mills, J. Tribbia, B. Kravitz, D. MacMartin, F. Vitt, J. F. Lamarque, 2017: “Stratospheric dynamic response and ozone feedback in the presence of SO2 injections”, J. Geoph. Res., 122, 12,557–12,573. Doi: 10.1002/2017JD026912

Tilmes, S., J. H. Richter, M. Mills, B. Kravitz, D. MacMartin, F. Vitt, J. Tribbia, J. F. Lamarque, 2017: “Sensitivity of stratospheric SO2 injection locations on aerosol distribution and climate response”, J. Geoph. Res., 122, 12,591–12,615. Doi: 10.1002/2017JD026888

MacMartin D., B. Kravitz, S. Tilmes, J. H. Richter, M. Mills, J. Tribbia, J.F. Lamarque, 2017: The climate response to stratospheric aerosol geoengineering can be tailored using multiple injection locations”, J. Geoph. Res., 122,12,574–12,590. Doi: 10.1002/2017JD026868

Kravitz B., D. MacMartin, M. Mills, J. H. Richter, S. Tilmes, J. F. Lamarque, J. Tribbia, and F. Vitt, 2017: First simulations of designing stratospheric sulfate aerosol geoengineering to meet multiple simultaneous climate objectives, J. Geoph. Res., 12,616–12,634. Doi: 10.1002/2017JD026874

Mills, M. J., and Coauthors, 2017: Radiative and chemical response to interactive stratospheric sulfate aerosols in fully coupled CESM1(WACCM). Journal of Geophysical Research: Atmospheres, 122, 13061-13078, Doi: 10.1002/2017JD027006

Sun L. , J. H. Richter, J. Perlwitz, 2017: How Strong Is the Relationship between the Quasi-biennial Oscillation and the Northern Hemisphere Extratropical Circulation? Geoph. Res. Letts, Submitted

J. H. Richter: “The quasi-biennial oscillation (QBO): Past, present, and the future”, CGD/NCAR Seminar, February 2017

J. H. Richter and R. G. Garcia, “Interactive QBO simulations in a warming climate”, CESM working group meetings, Boulder, CO February 2017

J. H. Richter, S. Tilmes, M. Mills, B. Kravitz, D. MacMartin, J. Tribbia, S. Glanville: “Geoengineering Research at NCAR”, CESM Annual Meeting, Boulder, CO, June 2017

J. H. Richter, S. Tilmes, M. Mills, B. Kravitz, D. MacMartin, J. Tribbia, S. Glanville: “Stratospheric dynamical response and ozone feedbacks in the presence of SO2 injections”, CESM Annual Meeting, Boulder, CO, June 2017

J. H. Richter. J. Perlwitz, L. Sun, J. Bacmeister, and J. Tribbia: “Role of stratospheric processes in predicting the ENSO-NAO connections on subseasonal time scale”, CESM Annual Meeting, Boulder, CO, June 2017

J. H. Richter, J. Anstey, N. Butchart, S. Osprey, K. Hamilton: “The Quasi-Biennial Oscillation Initiative (QBOi)”, AMS Middle Atmosphere Meeting, Portland, OR, June 2017

J. H. Richter, S. Tilmes, M. Mills, A. Glanville, B. Kravitz, D. MacMartin:”Does the QBO have to disappear with geoengineering using sulfate aerosols?” Gordon Conference on Geoengineering, Sunday River, ME, July 2017

J. H. Richter and others: “Response of the QBO in 2x and 4x CO2 worlds in QBOi models”, QBOi Meeting, Kyoto, Japan, October 2017

Garcia R. G. and J. H. Richter: “An interrupted QBO event simulated with the Whole Atmosphere Community Climate Model”, QBOi Meeting, Kyoto, Japan, October 2017

C. Chen and J. H. Richter: “Sensitivity of the QBO to ozone and CO2 in CAM5”

A. Robock, L. Xia, S. Tilmes, M. Mills, J. H. Richter, B. Kravitz, and D. MacMartin: “Impacts of stratospheric sulfate geo engineering on PM2.5”, AGU Annual Meeting, Dec 2017

2016

C. Stephan, M. J. Alexander, and J. H. Richter, 2016: “Characteristics of gravity waves from convection and implications for their parameterization in global circulation models”, J. Geophys. Res., 73, Doi: 10.1175/JAS-D-15-0303.1

Wei J., F. Zhang, and J. H. Richter, 2016: “An Analysis of Gravity Wave Spectral Characteristics in Moist Baroclinic Jet-Front Systems”, J. Atmos. Sci., 73, Doi: 10.1175/JAS-D-15-0316.1

J. H. Richter and S. Tilmes, “ Climate Intervention Research at NCAR”, State Department, Washington, DC Dec 2016

Hernandez-Espiet A., J. H. Richter and C. C. Chen: “Analysis of a better-resolved stratosphere on seasonal forecasts of the Northern Hemisphere Winter”, American Meteorological Society Annual Meeting, New Orleans, LA, 2016

J. H. Richter, C. Deser and L. Sun: “Effects of Sudden Stratospheric Warmings and Quasi-biennial Oscillation on El Nino Teleconnections”, American Meteorological Society Annual Meeting, New Orleans, LA, January 2016

J. H. Richter, L. Sun, C. Deser and J. Bacmeister: “The QBO and Stratospheric-tropospheric coupling”, American Meteorological Society Annual Meeting, New Orleans, LA, 2016

A. K. Smith, J. H. Richter, R. R. Garcia: “Using gravity waves parameterizations to address WACCM discrepancies”, SPARC Gravity Wave Symposium, State College, PA 2016

Ma, P., P. Rasch, S. Xie, H. Wang, B. Singh, W. Lin, K. Zhang, H. Wan, Y. Qian, C. Golaz, J. Bacmeister, R. Easter, S. Ghan, R. Neale, C. Hannay, J. Richter, S. Burrows, P. Cameron-Smith, P. Bogenschutz, V. Larson, P. Caldwell: “Tuning the NE30_L72 ACME V1 Atmosphere Model”, ACME hands-on meeting, June 2016

J. H. Richter, R. G. Garcia, A. Smith: “Simulations with high vertical resolution WACCM for QBOi”. CESM Annual Meeting, Breckenridge, CO June 2016

J. H. Richter, S. Tilmes, M. Mills, B. Kravitz, and Doug MacMartin: “A Holistic Assessment of SO2 Injection into the Stratosphere”, Defense Advance Research Projects Agency (DARPA), Washington, DC August 2016

J. H. Richter, L. Sun, R. G. Garcia, and C. Chen: “On the relationship between the QBO and the polar vortex in the NCAR models“, SPARC Quasi-biennial Oscillation Workshop, Oxford, UK, September 2016

J. H. Richter, R. G. Garcia, and C. Chen: “ The QBO simulated with the 110-level WACCM”, SPARC Quasi- biennial Oscillation Workshop, Oxford, UK, September 2016

C. Chen, J. H. Richter and J. Bacmeister: “Sensitivity of the QBO to ozone and CO2 in CAM5”, QBOi Jack SPARC Quasi-biennial Oscillation Workshop, Oxford, UK, September 2016

J. H. Richter, S. Tilmes, M. Mills, B. Kravitz, and D. MacMartin: “Changes to the quasi-biennial oscillation due to SO2 injections”, AGU Annual Meeting, San Francisco, CA, December 2016

L. Sun, J. H. Richter, J. Perlwitz: “Role of stratospheric processes on ENSO-NAO connections on Seasonal- to-Subseasonal timescale”, AGU Annual Meeting, San Francisco, CA, December 2016

2015

Richter, J. H., C. Deser, and L. Sun, 2015: “Effects of Stratospheric Variability on El Nino Teleconnections”, Env. Res. Lett., 10, Doi: 10.1088/1748-9326/10/12/124021

J. H. Richter, J. T. Bacmeister, L. Sun and C. Deser: “Effects of the vertical grid on the QBO and tropospheric El Nino Response”, Pacific Northwest National Laboratory (PNNL) seminar, Pasco, 
 WA Mar 2015

J. H. Richter and J. T. Bacmeister: “QBO in CAM and WACCM”, 1st SPARC QBO Intercomparison Workshop, Victoria, CA 2015

J. H. Richter: “Effects of the stratosphere on El Niño Impacts”, Association for Talented and Gifted, San Juan, Puerto Rico, Sep 2015

J. H. Richter: “Effects of the stratosphere on El Niño Impacts”, Universidad Metropolitana, San Juan, Puerto Rico, Sep 2015

J. H. Richter: “Pathways to Geosciences: Professional and Personal”, Promoting Geoscience Research, Education & Success Workshop, Estes Park, CO, Sep 2015

J. H. Richter, L. Sun, C. Deser and J. Bacmeister: “Impacts of a better-resolved stratosphere on El Niño teleconnections”, Colorado State University, Ft. Collins, CO, Oct 2015

J. H. Richter, L. Sun, C. Deser and J. Bacmeister: “Why do GCMs need a well-resolved stratosphere to get El Niño impacts right? ”, Geophysical Fluid Dynamics Laboratory (GFDL), Princeton, NJ, Nov 2015

J. H. Richter, J. T. Bacmeister, and L. Sun: “Influence of the model lid on the simulated tropospheric climate”, American Meteorological Society Annual Meeting, Phoenix, AZ, 2015

J. H. Richter, J. T. Bacmeister, L. Sun, and C. Deser: “Effects of the QBO on ENSO teleconnections’, Climate Variability Working Group Meeting, Boulder, CO 2015

J. H. Richter, J. T. Bacmeister, L. Sun, and C. Deser: “Effects of various vertical grids in CAM/WACCM’, Atmosphere Model Working Group Meeting, Boulder, CO 2015

J. H. Richter, J. T. Bacmeister, R. R. Garcia, and A. Gettleman: “On the simulation of the QBO in WACCM”, Community Earth System Model Annual Meeting, Breckenridge, CO 2015

L. Sun, J. Richter and C. Deser: “How much can raising model lid improve the stratospheric and tropospheric simulation?”, SPARC Regional Workshop, Boulder, CO 2015

J. H. Richter, L. Sun and C. Deser: “Effects of the stratosphere on El Niño teleconnections”, SPARC Regional Workshop, Boulder, CO 2015

2014

Richter, J. H., J. T. Bacmeister and A. Solomon, 2014: “On the simulation of the Quasi-Biennial Oscillation in the Community Atmosphere Model, version 5 (CAM5)”, J. Geophys. Res., Doi: 10.1002/2013JD021122

Richter, J. H., A. Solomon, and J. T. Bacmeister, 2014: “Effects of increased vertical resolution on the simulation of tropospheric and stratospheric climate”, J. Adv. Mod. Earth Sys., Doi: 10.1002/2013MS000303

A. Solomon, J. H. Richter, and J. T. Bacmeister, 2014: “An Objective Analysis of the Extratropical QBO in ERA-Interim and the Community Atmosphere Model, Version 5”, Geophys. Res. Lett., 41, Doi: 10.1002/2014GL061801

J. H. Richter and J. T. Bacmeister: “Sensitivity of the Quasi-Biennial Oscillation to top boundary condition and model grid”, Community Earth System Model Annual Meeting, Breckenridge, CO 2014

J. H. Richter, J. Bacmeister, and A. Solomon: “Effects of increased vertical resolution on the simulation of mean climate and the Quasi-Biennial Oscillation”, Community Earth System Model Atmosphere Working Group Meeting, Boulder, CO, 2014

J. H. Richter, J. Bacmeister, and A. Solomon: “Effects of vertical resolution, dynamical core, and top boundary condition on the simulation of the Quasi-Biennial Oscillation in the Community Atmosphere Model, Version 5”, European Geophysical Union Annual Meeting, Vienna, Austria 2014

J. H. Richter and J. T. Bacmeister: “Effects of a higher model lid on the simulation of climate in CAM5”, Community Earth System Model Annual Meeting, Breckenridge, CO 2014

2013

Neale, R. B., J. Richter, S. Park, P. H. Lauritzen, S. J. Vavrus, P. J. Rasch, and M. Zhang, 2013: The mean climate of the Community Atmosphere Model (CAM4) in forced SST and fully coupled experiments. J. Climate, 26, 5150-5168

A. Solomon, J. H. Richter, and J. Bacmeister: Polar Atmospheric Variability in CAM5 with Enhanced Vertical Resolution, Community Earth System Model Workshop, Breckenridge, CO 2013

J. H. Richter, J. Bacmeister, and A. Solomon: Higher Vertical Resolution in CAM - do we need it?, Community Earth System Model Workshop, Breckenridge, CO 2013

2012

V. Limpasuvan, J. H. Richter, Y. J. Orsolini, F. Stordal, O. Kvissel, 2012: The roles of planetary and gravity waves during a major stratospheric sudden warming as characterized in WACCM, J. Atmos. Sol.-Terr. Phys., 78-79, 84-98

O. Kvissel, Y, Orsolini, F. Stordal, V. Limpasuvan, J. H. Richter and D. Marsh 2012: Mesospheric intrusion and anomalous chemistry during and after a major stratospheric sudden warming, J. Atmos. Sol.-Terr. Phys., 78, 116 - 124

2011

V. Limapsuvan, M. J. Alexander, Y. J. Orsolini, D. L. Wu, J. H. Richter and C. Yamashita, 2011: Mesoscale simulations of gravity waves during the 2008–2009 major stratospheric sudden warming, J. Geophys. Res., 116, Doi: 10.1029/2010JD015190

H. Richter., K. Matthes, N. Calvo and L. Gray, 2011: Influence of the quasi-biennial oscillation and El Niño– Southern Oscillation on the frequency of sudden stratospheric warmings, J. Geophys. Res., 116, Doi: 10.1029/2011JD015757

K. Smith, R. R. Garcia, D. R. Marsh, and J. H. Richter, 2011: WACCM simulations of the mean circulation and trace species transport in the winter mesosphere, J. Geophys. Res., 116, Doi: 10.1029/2011JD016083

2010

J. H. Richter., F. Sassi, and R. R. Garcia, 2010: Toward a Physically Based Gravity Wave Source Parameterization in a General Circulation Model, J. Atmos. Sci., 67, 136 – 156

A. K. Smith, R. R. Garcia, D. R. Marsh, D.E. Kinnison, and J. H. Richter, 2010: Simulations of the response of mesospheric circulation and temperature to the Antarctic ozone hole. Geophys. Res. Lett., 37, Doi: 10.1029/2010GL045255

H.-L. Liu, B. T. Foster, M. E. Hagan, J. M. McInerney, A. Maute, L. Qian, A. D. Richmond, R. G. Roble, S. C. Solomon, R. R. Garcia, D. Kinnison, D. R. Marsh, A. K. Smith, J. H. Richter, F. Sassi, and J. Oberheide, 2010: Thermosphere Extension of the Whole Atmosphere Community Climate Model, J. Geophys. Res., 115, Doi: 10.1029/2010JA015586

Neale, R. B., J. H. Richter, A. J. Conley, S. Park, P. H. Lauritzen, A. Gettelman, D. L. Williamson, P. J. Rasch, S. J. Vavrus, M. A. Taylor, W. D. Collins, M. Zhang, S.-J. Lin, 2010: Description of the NCAR Community Atmosphere Model (CAM 4.0), NCAR Tech. Note TN-485.

C. Chen, J. H. Richter, R. R. Garcia, J. Bacmeister, and A. K. Smith: Effects of momentum and energy conservation in a high-lid general circulation model, WACCM Working Group Meeting, Boulder, CO 2010

C. Chen, J. H. Richter, R. R. Garcia, J. Bacmeister, and A. K. Smith: A momentum and energy conserving gravity wave drag parameterization in a General Circulation Model, European Geophysical Union (EGU), Vienna, Austria 2010

J. H. Richter, Chih-Chieh Chen, Rolando R. Garcia, Anne K. Smith, and Julio T. Bacmeister: Effects of gravity wave parameterization changes on the middle and upper atmosphere in the Whole Atmosphere Community Climate Model, European Geophysical Union (EGU), Vienna, Austria 2010

2009

J. H. Richter ,R. R. Garcia, A. Gettleman, D. Kinnison, D. Marsh, and A. K. Smith, Climatology of WACCM3.5, WACCM Working Group Meeting, Boulder, CO 2009

C. Chen, J. H. Richter, R. R. Garcia, J. Bacmeister, and A. K. Smith: A momentum and energy conserving gravity wave drag parameterization in a General Circulation Model, American Geophysical Union (AGU) Fall Meeting, San Francisco, CA 2009

2008

Chang, L., S. Palo, M. Hagan, J. H. Richter, R. R. Garcia, D. Riggin, and D. Fritts, 2008: Structure of the Migrating Diurnal Tide in the Whole Atmosphere Community Climate Model, Adv. Space Res., 41, 1398-1407

J. H. Richter and P. J. Rasch, 2008: Effects of convective momentum transport on the atmospheric circulation in the Community Atmosphere Model, version 3, J. Climate, 21, 1487 - 1499

Neale, R. B., J. H. Richter, and M. Jochum, 2008: The Impact of Convection on ENSO: From a Delayed Oscillator to a Series of Events, J. Climate, 21, 5904–5924

J. H. Richter., F. Sassi, R. R. Garcia, K. Matthes, and C. A. Fischer, 2008: Dynamics of the middle atmosphere as simulated by the Whole Atmosphere Community Climate Model, version 3 (WACCM3), J. Geophys. Res., 113, Doi: 10.1029/2007JD009269

J. H. Richter, F. Sassi and R. R. Garcia: Effects of Changes in Gravity Wave
 Parameterization on the Troposphere and Lower Stratosphere, Atmosphere Model Working Group Annual Meeting, Boulder, CO 2008

J. H. Richter, F. Sassi, and R. R. Garcia: Towards a non-arbitrary gravity wave source parameterization in a general circulation model, European Geophysical Union (EGU), Vienna, Austria 2008

J. H. Richter, F. Sassi and R. R. Garcia: Source oriented GW parameterization in WACCM3, Community Climate Systems Model Workshop, Breckenridge, CO 2008

J. H. Richter, F. Sassi, C. A. Fischer and R. R. Garcia: Gravity Waves in CAM3.5, Community Climate Systems Model Workshop, Breckenridge, CO 2008

2007

J. H. Richter, M. A. Geller, R. R. Garcia, H. Liu, and F. Zhang, 2006: Report on the Gravity Wave Retreat, SPARC Newsletter #28, January 2007

J. H. Richter, and R. Neale: Impact of modifications of convection schemes on CAM3 and CCSM3 simulations, Atmosphere Model Working Group Annual Meeting, Boulder, CO 2007

Jochum, M., R. Neale and J. H. Richter: ENSO mechanisms in the new CCSM, 16th Conference on Atmospheric and Oceanic Fluid Dynamics, Santa Fe, NM 2007

Chang, L., S. Palo, J. H. Richter, and R. R. Garcia: Planetary wave induced migrating diurnal tidal variability in WACCM3, Energetics and Dynamics of Atmospheric Regions (CEDAR) Annual Meeting, Santa Fe, NM 2007

Sassi, F., J. H. Richter, and R. R. Garcia: A sensitivity study of the middle atmosphere to changes in the parameterized momentum drag of gravity waves, International Union of Geodesy and Geophysics (IUGG) Meeting, Perugia, Italy 2007

Sassi, F., J. H. Richter, and R. R. Garcia: A sensitivity study of the middle atmosphere to changes in the parameterized momentum drag of gravity waves, 14th Conference on the Middle Atmosphere, Portland, OR 2007

2006

Alexander, M. J., J. H. Richter, and B. R. Sutherland, 2006: Generation and Trapping of Gravity Waves from Convection with Comparison to Parameterization, J. Atmos. Sci., 63, 2963–297

M. A. Geller, H. Liu, J. H. Richter, D. Wu, and F. Zhang, 2006: Gravity Waves in Weather, Climate, and Atmospheric Chemistry: Issues and Challenges for the Community (White Paper)

Sassi, F., J. H. Richter, B. A. Boville, and R. R. Garcia: Experiments with WACCM: a sensitivity study, The Institute for Integrative and Multidisciplinary Earth Studies (TIIMES) Gravity Wave Retreat, Boulder, CO Jun 2006

J. H. Richter: Source spectrum parameterizations for convectively generated gravity waves, The Institute for Integrative and Multidisciplinary Earth Studies (TIIMES) Gravity Wave Retreat, Boulder, CO Jun 2006

J. H. Richter: Convective Momentum Transport in CAM3, The Institute for Integrative and Multidisciplinary Earth Studies (TIIMES) Gravity Wave Retreat, Boulder, CO Jul 2006

Sassi, F., J. H. Richter, B. A. Boville, and R. R. Garcia: Model consistent generation of gravity waves and their effects on simulations of the middle atmosphere: A case study with the WACCM model, Atmosphere Model Working Group Annual Meeting, Boulder, CO 2006

Sassi, F., J. H. Richter, B. A. Boville, and R. R. Garcia: Model consistent generation of gravity waves and their effects on simulations of the middle atmosphere: A case study with the WACCM model, European Geophysical Union Meeting, Vienna, Austria 2006

J. H. Richter and P. J. Rasch: Convective momentum transport in the Community Atmosphere Model (CAM3), Community Climate Systems Model Workshop, Breckenridge, CO 2006

Sassi, F et al.: WACCM simulations in 2006-2007, Community Climate Systems Model Workshop, Breckenridge, CO 2006

Kristen L. Corbosiero, V. Cheruvu, J. H. Richter, C. Johnson, and T. Eastburn: Climate and weather, the two go together: Girl Scouts at the National Center for Atmospheric Research program, Seventh International Conference on School and Popular Meteorological and Oceanographic Education, Boulder, CO 2006

Chang, L., S. Palo, M. Hagan, J. H. Richter, R. R. Garcia, D. Riggin, and D. Fritts: Structure of the Migrating Diurnal Tide in the Whole Atmosphere Community Climate Model, Energetics and Dynamics of Atmospheric Regions (CEDAR) Annual Meeting, Santa Fe, NM 2006

Hassiotis, A. D., J. H. Richter, and T. J. Kane: A numerical study of convectively generated gravity waves over the maritime continent region using the weather research and forecasting (WRF) model, American Geophysical Union (AGU) Fall Meeting, San Francisco, CA 2006

2005

Beres, J. H., R. R. Garcia, B. A. Boville and F. Sassi, 2005a: Implementation of a gravity wave source spectrum parameterization dependent on the properties of convection in the Whole Atmosphere Community Climate Model (WACCM), J. Geophys. Res., 110, D10108, Doi: 10.1029/2004JD005504

Beres, J. H., 2005b: Estimates of mesospheric gravity wave activity over convection from a global model, Adv. Space Res., 35, 1933-1939

Richter, J. H. and R. R. Garcia 2005: On the forcing of the Mesospheric Semi-Annual Oscillation in the Whole Atmosphere Community Climate Model, Geophys. Res. Lett., 33, Doi: 10.1029/2005GL024378

Beres, J.H.: Lower and Upper Atmospheric Coupling: Role of Gravity Waves, Dept. of Astronomy, Boston University, Boston, MA Feb 2005

Sassi, F., Beres J. H. , B. Boville and R. R. Garcia: Gravity waves from tropospheric sources: Application to WACCM; Atmosphere Model Working Group Annual Meeting, Boulder, CO 2005

Richter, J. H. and R. R. Garcia: On the forcing of the Mesospheric Semi-annual Oscillation in the Whole Atmosphere Community Climate Model, American Meteorological Society 13th Conference on the Middle Atmosphere, Cambridge, MA 2005

Richter, J. H. and R. R. Garcia: Interaction between gravity waves and the 2-day wave in the Whole Atmosphere Community Climate Model, American Meteorological Society 13th Conference on the Middle Atmosphere, Cambridge, MA 2005

Chang, L., S. Palo, M. Hagan, J. H. Richter, and R. R. Garcia: Mean Structure and Variability of the Diurnal Tide in the NCAR Whole Atmosphere Community Climate Model, Energetics and Dynamics of Atmospheric Regions (CEDAR) Annual Meeting, Santa Fe, NM 2005

Richter, J. H. and R. R. Garcia: On the forcing of the Mesospheric Semi-annual Oscillation in the Whole Atmosphere Community Climate Model, Coupling, Energetics and Dynamics of Atmospheric Regions (CEDAR) Annual Meeting, Santa Fe, NM 2005

Richter, J. H. , A. K. Smith, and F. Sassi: Effects of mesospheric dynamics on the CO2 concentrations in the mesosphere and lower thermosphere, The International Association of Geomagnetism and Aeronomy (IAGA) Scientific Assembly, Toulouse, France 2005

2004

Beres, J. H., M.J. Alexander, and J.R. Holton, 2004a: A method of specifying the gravity wave spectrum above convection based on latent heating properties and background wind. J. Atmos. Sci., 61, 324– 337.

Beres, J. H., 2004: Gravity wave generation by a three-dimensional thermal forcing. J. Atmos. Sci., 61, 1805 – 1815.

Alexander, M. J., M. May and J. H. Beres, 2004: Gravity waves generated by convection in the
 Darwin area during DAWEX, J. Geophys. Res., 109, D20S04, Doi: 10.1029/2004JD004729

Beres, J. H.: Gravity Wave Excitation by Convection and its Implication for Parameterizations in General Circulation Models, Chapman Conference on Gravity Waves Processes and Parameterization, HI Jan 2004

Beres, J. H., R. Garcia, B. Boville, and F. Sassi: Linear theory estimates of global distribution of convectively generated gravity waves, CGU/AGU/ SEG/ EEGS Join Assembly, Montreal, Canada May 2004

Beres, J. H., R. Garcia, B. Boville, and F. Sassi: Effects of a gravity wave spectrum linked to convection on the circulation of the upper atmosphere, 35th COSPAR Scientific Assembly, Paris, France Jul 2004

Beres, J. H., M.J. Alexander, and J.R. Holton: A representation of the full gravity wave spectrum generated by convection in realistic environmental wind conditions, American Meteorological Society 12th Conference on the Middle Atmosphere, San Antonio, TX 2004

Alexander M. J., P. May and J. H. Beres: Gravity Wave Generation by Small-Scale Transient Convection During the Darwin Area Wave Experiment (DAWEX), Chapman Conference on Gravity Waves Processes and Parameterization, HI 2004

2003

Beres, J. H: Convectively Generated Gravity Waves: Generation Mechanisms and New Steps Towards Quantifying Their Role in The Atmosphere, Dept. of Physics, University of Toronto, Toronto, Canada Apr 2003

Beres, J. H.: Convectively Generated Gravity Waves: Generation Mechanisms and Implications for Their Role in The Middle Atmosphere, Meteorological Service of Canada (MSC), Toronto, Canada Oct 2003

2002

Holton, J. R., J. H. Beres, and X. L. Zhou, 2002: On the vertical scale of gravity waves excited by localized thermal forcing. J. Atmos. Sci., 59, 2019–2023

Beres, J. H., M.J. Alexander, and J.R. Holton, 2002: Effects of tropospheric wind shear on the spectrum of convectively generated gravity waves. J. Atmos. Sci., 59, pp. 1805–1824

Beres, J. H., 2002. Gravity waves generated by tropical convection: generation mechanisms and 
 implications for global circulation models. Ph.D. thesis Dept. of Atmospheric Science, University 
 of Washington, 129 pp.

Beres, J. H., M. J. Alexander, and J. R. Holton: Gravity waves generated by tropical convection: Generation Mechanisms and Implications for General Circulation Models, Atmospheric Chemistry Division Seminar, NCAR, Boulder, CO Jul 2002

2000

Alexander, M. J., J. H. Beres and L. Pfister, 2000: Tropical stratospheric gravity wave activity and relationship to clouds. J. Geophys. Res., 105, 22,299-22,309.

Beres, J. H. and Freeman, P. K.: Potential effects of climate change on the energy infrastructure in developing countries; case study: Honduras; Institute for Applied Systems Analysis (IIASA) internal report, 2000

Beres, J. H., M.J. Alexander, and J.R. Holton: Forcing of the stratospheric circulation by convectively generated gravity waves: the role of tropospheric wind shear, Stratospheric Processes And their Role in Climate (SPARC) meeting, Mar del Plata, Argentina 2000

Beres, J. H., M.J. Alexander, and J.R. Holton: Effects of varying tropospheric wind shear on the spectrum of gravity waves generated by tropical convection, American Meteorological Society Annual Meeting, Long Beach, CA 2000