Dr. Coy has been with the Global Modeling and Assimilation Office at NASA GSFC since August 2012. His research focuses on analyzing winds, temperatures, and constituents from global circulation models, transport models, and data assimilation products, with emphasis on the middle atmosphere circulation, planetary waves, and inertia gravity waves.
Lawrence Coy
(LEAD RESEARCH SCIENTIST)
| Email: | lawrence.coy@nasa.gov |
| Phone: | 301.614.6178 |
| Org Code: | 610.1 |
| Address: |
NASA/GSFC Mail Code 610.1 Greenbelt, MD 20771 |
| Employer: | SCIENCE SYSTEMS AND APPLICATIONS INC |
Brief Bio
Education
Ph.D. Atmospheric Sciences 1983, University of Washington, Seattle, WA
M.S. Physics 1975, University of Illinois, Urbana, IL
B.A. Physics 1973, Beloit College, Beloit, WI
M.S. Physics 1975, University of Illinois, Urbana, IL
B.A. Physics 1973, Beloit College, Beloit, WI
Publications
Refereed
2024. "Gravity Wave–Induced Instability of the Stratospheric Polar Vortex Edge." Journal of the Atmospheric Sciences 81 (11): 1999-2013 [10.1175/jas-d-24-0005.1] [Journal Article/Letter]
2024. "Record High March 2024 Arctic Total Column Ozone." Geophysical Research Letters 51 (18): [10.1029/2024gl110924] [Journal Article/Letter]
2024. "2023 Antarctic ozone hole [in “State of the Climate in 2023”]." Bull. Amer. Meteor. Soc. 105 (8): S358-S361 [https://doi.org/10.1175/BAMS-D-24-0099.1] [Journal Article/Letter]
2024. "Aeolus wind lidar observations of the 2019/2020 quasi-biennial oscillation disruption with comparison to radiosondes and reanalysis." Atmospheric Chemistry and Physics 24 (4): 2465-2490 [10.5194/acp-24-2465-2024] [Journal Article/Letter]
2023. "2022 Antarctic Ozone Hole [in “State of the Climate in 2022”]." Bull. Amer. Meteor. Soc 104 (9): s355-s359 [https://doi.org/10.1175/BAMS-D-23-0077.1] [Journal Article/Letter]
2022. "Stratospheric Circulation Changes Associated with the Hunga Tonga‐Hunga Ha'apai Eruption." Geophysical Research Letters 49 [10.1029/2022gl100982] [Journal Article/Letter]
2022. "Faster Tropical Upper Stratospheric Upwelling Drives Changes in Ozone Chemistry." Geophysical Research Letters 49 (20): [10.1029/2022gl101075] [Journal Article/Letter]
2022. "2021 Antarctic Ozone Hole [in “State of the Climate in 2021"]." Special Supplement to the Bulletin of the American Meteorological Society 103 (8): S332–S335 [https://doi.org/10.1175/2022BAMSStateoftheClimate] [Journal Article/Letter]
2022. "NASA GEOS Composition Forecast Modeling System GEOS‐CF v1.0: Stratospheric composition." Journal of Advances in Modeling Earth Systems 14 (e2021MS002852): [10.1029/2021ms002852] [Journal Article/Letter]
2022. "Seasonal Prediction of the Quasi‐Biennial Oscillation." Journal of Geophysical Research: Atmospheres 127 (6): [10.1029/2021jd036124] [Journal Article/Letter]
2021. "Intercomparison of middle atmospheric meteorological analyses for the Northern Hemisphere winter 2009–2010." Atmospheric Chemistry and Physics 21 (23): 17577-17605 [10.5194/acp-21-17577-2021] [Journal Article/Letter]
2021. "Prospect of Increased Disruption to the QBO in a Changing Climate." Geophysical Research Letters 48 (15): [10.1029/2021gl093058] [Journal Article/Letter]
2020. "Seasonal Variation of the Quasi‐Biennial Oscillation Descent." Journal of Geophysical Research: Atmospheres 125 (18): [10.1029/2020jd033077] [Journal Article/Letter]
2020. "GEOS-S2S Version 2: The GMAO high resolution coupled model and assimilation system for seasonal prediction." Journal of Geophysical Research 125 (5): [10.1029/2019JD031767] [Journal Article/Letter]
2019. "Rare forecasted climate event under way in the Southern Hemisphere." Nature 573 (7775): 495-495 [10.1038/d41586-019-02858-0] [Journal Article/Letter]
2019. "2018 Antarctic ozone hole [in “State of the Climate in 2018"]." Bull. Amer. Meteor. Soc. 100 (9): S185-S187 [10.1175/2019BAMSStateoftheClimate.1] [Journal Article/Letter]
2019. "Global Assimilation of Loon Stratospheric Balloon Observations." Journal of Geophysical Research: Atmospheres 124 (6): 3005-3019 [10.1029/2018jd029673] [Journal Article/Letter]
2018. "Antarctic ozone hole [in “State of the Climate in 2017”]." Bull. Amer. Meteor. Soc. 99 (8): s190-s192 [10.1175/2018BAMSStateoftheClimate.1] [Journal Article/Letter]
2018. "Recent decline in extratropical lower stratospheric ozone attributed to circulation changes." Geophysical Research Letters [10.1029/2018gl077406] [Journal Article/Letter]
2017. "Gravity wave spectra in the lower stratosphere diagnosed from project loon balloon trajectories." Journal of Geophysical Research: Atmospheres 122 [10.1002/2017jd026471] [Journal Article/Letter]
2017. "Dynamics of the Disrupted 2015/16 Quasi-Biennial Oscillation." Journal of Climate 30 (15): 5661-5674 [10.1175/jcli-d-16-0663.1] [Journal Article/Letter]
2017. "An evaluation of gravity waves and gravity wave sources in the Southern Hemisphere in a 7 km global climate simulation." Quarterly Journal of the Royal Meteorological Society 143 (707): 2481-2495 [10.1002/qj.3101] [Journal Article/Letter]
2017. "Response of trace gases to the disrupted 2015–2016 quasi-biennial oscillation." Atmospheric Chemistry and Physics 17 (11): 6813-6823 [10.5194/acp-17-6813-2017] [Journal Article/Letter]
2017. "The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2)." Journal of Climate 30 5419–5454 [10.1175/jcli-d-16-0758.1] [Journal Article/Letter]
2017. "Unexpected Climatological Behavior of MLT Gravity Wave Momentum Flux in the Lee of the Southern Andes Hotspot." Geophysical Research Letters [10.1002/2016GL072311] [Journal Article/Letter]
2016. "The anomalous change in the QBO in 2015-16." Geophysical Research Letters 43 [10.1002/2016gl070373] [Journal Article/Letter]
2016. "Tropical waves and the quasi-biennial oscillation in a 7-km global climate simulation." Journal of the Atmospheric Sciences 73 3771–3783 [10.1175/jas-d-15-0350.1] [Journal Article/Letter]
2016. "Structure and Dynamics of the Quasi-Biennial Oscillation in MERRA-2." J. Climate 29:14 5339-5354 [10.1175/jcli-d-15-0809.1] [Journal Article/Letter]
2016. "Strengthening of the Tropopause Inversion Layer During the 2009 Sudden Stratospheric Warming: A MERRA-2 Study." Journal of the Atmospheric Sciences [10.1175/jas-d-15-0333.1] [Journal Article/Letter]
2016. "Diagnosis of Middle-Atmosphere Climate Sensitivity by the Climate Feedback–Response Analysis Method." Journal of the Atmospheric Sciences 73 (1): 3–23 [10.1175/jas-d-15-0013.1] [Journal Article/Letter]
2015. "Modulation of Antarctic vortex composition by the quasi-biennial oscillation." Geophysical Research Letters 42 (10): 4216-4223 [10.1002/2015gl063759] [Journal Article/Letter]
2014. "The major stratospheric sudden warming of January 2013: Analyses and forecasts in the GEOS-5 data assimilation." Mon. Wea. Rev 143 491-510 [10.1175/MWR-D-14-00023.1] [Journal Article/Letter]
2014. "Intraseasonal and interannual variability of the quasi 2 day wave in the Northern Hemisphere summer mesosphere." J. Geophys. Res. Atmos. 119 (6): 2928–2946 [10.1002/2013JD020199] [Journal Article/Letter]
2013. "Evaluation of SSMIS Upper Atmosphere Sounding Channels for High-Altitude Data Assimilation." Monthly Weather Review 141 (10): 3314-3330 [10.1175/mwr-d-13-00003.1] [Journal Article/Letter]
2013. "On the inclusion of Limb Infrared Monitor of the Stratosphere version 6 ozone in a data assimilation system." J. Geophys. Res. Atmos. 118 (14): 7982-8000 [10.1002/jgrd.50566] [Journal Article/Letter]
2013. "Singular vectors and their nonlinear evolution during the January 2009 stratospheric sudden warming." Q.J.R. Meteorol. Soc. 140 (680): 1013-1024 [10.1002/qj.2181] [Journal Article/Letter]
2012. "Tracer transport during the Arctic stratospheric final warming based on a 33-year (1979-2011) tracer equivalent latitude simulation." Geophys. Res. Lett. 39 (12): L12801 [10.1029/2012GL051930] [Journal Article/Letter]
2011. "Mesospheric Precursors to the Major Stratospheric Sudden Warming of 2009: Validation and Dynamical Attribution Using a Ground-to-Edge-of-Space Data Assimilation System." Journal of Advances in Modeling Earth Systems 3 (4): [10.1029/2011ms000067] [Journal Article/Letter]
2010. "Case studies of the mesospheric response to recent minor, major, and extended stratospheric warmings." Journal of Geophysical Research 115 D00N03 [10.1029/2010jd014114] [Journal Article/Letter]
2010. "Tidally induced variations of polar mesospheric cloud altitudes and ice water content using a data assimilation system." Journal of Geophysical Research 115 (D18): D18209 [10.1029/2009jd013225] [Journal Article/Letter]
2010. "Seasonal variation of the quasi 5 day planetary wave: Causes and consequences for polar mesospheric cloud variability in 2007." Journal of Geophysical Research 115 (D18): D18111 [10.1029/2009jd012676] [Journal Article/Letter]
2010. "A Spectral Parameterization of Drag, Eddy Diffusion, and Wave Heating for a Three-Dimensional Flow Induced by Breaking Gravity Waves." Journal of the Atmospheric Sciences 67 (8): 2520-2536 [10.1175/2010jas3302.1] [Journal Article/Letter]
2009. "High-altitude data assimilation system experiments for the northern summer mesosphere season of 2007." Journal of Atmospheric and Solar-Terrestrial Physics 71 (3-4): 531-551 [10.1016/j.jastp.2008.09.036] [Journal Article/Letter]
2009. "Planetary Wave Breaking and Tropospheric Forcing as Seen in the Stratospheric Sudden Warming of 2006." Journal of the Atmospheric Sciences 66 (2): 495-507 [10.1175/2008jas2784.1] [Journal Article/Letter]
2009. "Evolution of the quasi 2-day wave during January 2006." Journal of Geophysical Research 114 (D20): D20115 [10.1029/2009jd012239] [Journal Article/Letter]
2007. "Effects of model chemistry and data biases on stratospheric ozone assimilation." Atmospheric Chemistry and Physics 7 (11): 2917-2935 [10.5194/acp-7-2917-2007] [Journal Article/Letter]
2007. "On recent interannual variability of the Arctic winter mesosphere: Implications for tracer descent." Geophysical Research Letters 34 (9): [10.1029/2007gl029293] [Journal Article/Letter]
2006. "NOGAPS-ALPHA Simulations of the 2002 Southern Hemisphere Stratospheric Major Warming." Monthly Weather Review 134 (2): 498-518 [10.1175/mwr3086.1] [Journal Article/Letter]
2006. "Remote sounding of atmospheric gravity waves with satellite limb and nadir techniques." Advances in Space Research 37 (12): 2269-2277 [10.1016/j.asr.2005.07.031] [Journal Article/Letter]
2005. "Modeling the August 2002 minor warming event." Geophysical Research Letters 32 (7): [10.1029/2005gl022400] [Journal Article/Letter]
2005. "Observations of stratospheric warmings and mesospheric coolings by the TIMED SABER instrument." GEOPHYSICAL RESEARCH LETTERS 32 (9): [10.1029/2005GL022399] [Journal Article/Letter]
2003. "High-Frequency Planetary Waves in the Polar Middle Atmosphere as Seen in a Data Assimilation System." J. Atmos. Sci. 60 (24): 2975-2992 [10.1175/1520-0469(2003)060<2975:HPWITP>2.0.CO;2] [Journal Article/Letter]
2001. "The Global Modeling Initiative assessment model: Application to high-speed civil transport perturbation." J. Geophys. Res. 106 (D2): 1693-1711 [10.1029/2000jd900406] [Journal Article/Letter]
2000. "The GCM-Reality Intercomparison Project for SPARC (GRIPS): Scientific issues and initial results." Bull Amer Meteorol Soc 81 781-796. [Journal Article/Letter]
1999. "Choosing meteorological input for the global modeling initiative assessment of high-speed aircraft." J. Geophys. Res. 104 (D22): 27545-27564 [10.1029/1999JD900827] [Journal Article/Letter]
1998. "Layering in stratospheric profiles of long-lived trace species: Balloon-borne observations and modeling." J. Geophys. Res. 103 (D5): 5815-5825 [10.1029/97jd03131] [Journal Article/Letter]
1998. "The impact of diabatic initialization on stratospheric analyses, forecasts, and transport experiments." Quarterly Journal of the Royal Meteorological Society 124 (545): 297-315 [10.1256/smsqj.54512] [Journal Article/Letter]
1997. "Characteristics of stratospheric winds and temperatures produced by data assimilation." J. Geophys. Res. 102 (D22): 25763-25781 [10.1029/97jd02361] [Journal Article/Letter]
1997. "Meteorology of the Polar Vortex: Spring 1997." Geophys. Res. Lett 24 (22): 2693-2696 [Journal Article/Letter]
1996. "Measurements of polar vortex air in the midlatitudes." J. Geophys. Res. 101 (D8): 12879-12891 [10.1029/95jd03387] [Journal Article/Letter]
1996. "A Three-Dimensional Simulation of the Ozone Annual Cycle Using Winds from a Data Assimilation System." J. Geophys. Res. 101 (D1): 1463-1474 [10.1029/95JD02601] [Journal Article/Letter]
1996. "Ozone Change from 1992 to 1993 as Observed from SSBUV on the ATLAS-1 and ATLAS-2 Missions." Geophys. Res. Lett 2305-2308 [Journal Article/Letter]
1994. "A Comparison of Winds From the STRATAN Data Assimilation System to Balanced Wind Estimates." J. Atmos. Sci 51 (15): 2309-2315 [10.1175/1520-0469(1994)051<2309:ACOWFT>2.0.CO;2] [Journal Article/Letter]
1992. "Mean Winds and Momentum Fluxes over Jicamarca, Peru, during June and August 1987." Journal of the Atmospheric Sciences 49 (24): 2372-2383 [10.1175/1520-0469(1992)049<2372:mwamfo>2.0.co;2] [Journal Article/Letter]
1992. "Dynamics of the Equatorial Mesosphere Observed Using the Jicamarca MST Radar during June and August 1987." Journal of the Atmospheric Sciences 49 (24): 2353-2371 [10.1175/1520-0469(1992)049<2353:dotemo>2.0.co;2] [Journal Article/Letter]
1989. "Gravity Wave Structure between 60 and 90 km Inferred from Space Shuttle Reentry Data." Journal of the Atmospheric Sciences 46 (3): 423-434 [10.1175/1520-0469(1989)046<0423:gwsbak>2.0.co;2] [Journal Article/Letter]
1988. "GRAVITY-WAVE HEAT FLUXES - A LAGRANGIAN APPROACH." JOURNAL OF THE ATMOSPHERIC SCIENCES 45 (12): 1770-1780 [10.1175/1520-0469(1988)045<1770:GWLFAL>2.0.CO;2] [Journal Article/Letter]
1986. "The Stokes Drift due to Vertically Propagating Internal Gravity Waves in a Compressible Atmosphere." Journal of the Atmospheric Sciences 43 (22): 2636-2643 [10.1175/1520-0469(1986)043<2636:tsddtv>2.0.co;2] [Journal Article/Letter]
1984. "Kelvin Wave Packets and Flow Acceleration: A Comparison of Modeling and Observations." Journal of the Atmospheric Sciences 41 (11): 1875-1880 [10.1175/1520-0469(1984)041<1875:kwpafa>2.0.co;2] [Journal Article/Letter]
1979. "An Unusually Large Westerly Amplitude of the Quasi-Biennial Oscillation." Journal of the Atmospheric Sciences 36 (1): 174-176 [10.1175/1520-0469(1979)036<0174:aulwao>2.0.co;2] [Journal Article/Letter]
1979. "POSSIBLE 2-DAY OSCILLATION NEAR THE TROPICAL STRATOPAUSE." JOURNAL OF THE ATMOSPHERIC SCIENCES 36 (8): 1615-1618 [10.1175/1520-0469(1979)036<1615:APDONT>2.0.CO;2] [Journal Article/Letter]
Non-Refereed
2020. "Transition to the RRTMG Shortwave Radiation Code in GEOS Models." Goddard Modeling and Assimilation Office (GMAO) Research Brief [Full Text] [Report]
2016. "MERRA-2 Input Observations: Summary and Assessment." Technical Report Series on Global Modeling and Data Assimilation 46 (NASA/TM–2016-104606): [Other]
2015. "MERRA-2: Initial Evaluation of the Climate." NASA Technical Report Series on Global Modeling and Data Assimilation 43 (NASA/TM–2015–10) 139 pp. [Report]
2015. "Evaluation of the 7-km GEOS-5 Nature Run." NASA Technical Report Series on Global Modeling and Data Assimilation 36 (NASA/TM-2014-104606): [Report]