M.S. 1983 Meteorology - University of Wisconsin – Madison
B.S. 1981 Atmospheric Science and Mathematics - State University of New York at Albany
Stephen D Steenrod
(RESEARCH ANALYST)
| Email: | stephen.d.steenrod@nasa.gov |
| Phone: | 301.614.6054 |
| Org Code: | 614 |
| Address: |
NASA/GSFC Mail Code 614 Greenbelt, MD 20771 |
| Employer: | UNIVERSITY OF MARYLAND BALTIMORE CO |
Positions/Employment
Research Analyst
University of Maryland – Baltimore County - NASA GSFC
January 2006 - May 2011
Member of Atmospheric Chemistry and Dynamics Branch at NASA Goddard Space Flight Center providing scientific and programming support for The GMI project studying chemical and transport aspects of the lower and middle atmosphere, including: development and adaptation of atmospheric and chemical modeling codes; development of diagnostic software for analysis and visualization of model output; system administration of over 20 Linux (Gentoo) workstations.
Task Leader
Space Science and Applications, Inc. - NASA GSFC
December 2000 - January 2006
Member of Atmospheric Chemistry and Dynamics Branch at NASA Goddard Space Flight Center providing scientific and programming support for projects studying chemical and dynamical aspects of the lower and middle atmosphere, including: development, optimization, adaptation, and multiprocessing of atmospheric and chemical modeling codes; development of diagnostic software for analysis and visualization of model output, satellite data and meteorological synoptic analyses; development of general user software to allow simple access to large central databases of satellite data and model output; system administration of SGI (Irix) and Linux (RedHat Core2) workstations.
Senior Analyst
Applied Research Corp./Emergent Information Tech., Inc. - NASA GSFC
October 1983 - December 2000
Member of Atmospheric Chemistry and Dynamics Branch at NASA GSFC providing scientific and programming support for projects studying chemical and dynamical aspects of the middle atmosphere, including: development of interactive 3D color graphical software for analysis and visualization of data; development of diagnostic software for analysis and interpretation of model output, satellite data and meteorological analysis; development of general user software to allow simple access to large central databases of satellite and atmospheric model data; system support for users of workstations; and representation at the committee for the mainframe computers. I worked extensively with SGI workstations, UNIX (Irix), IDL, Fortran, X-Windows, Cray and IBM mainframes, and UniTree. Three years developing mathematical and scientific applications programs for oceanic circulation problems involving algebraic and numerical finite difference models. Also developed objective analysis program to determine oceanic circulations from satellite altimetry data.
Research Assistant
Space Science and Engineering Center - University of Wisconsin - Madison
August 1981 - October 1983
Designed and conducted research on diurnal variation of convective tropical clouds, objectively using satellite data. Completed Master of Science thesis from this research.
Meteorological Technician
National Weather Service – Western Rgn Hdqtrs - Salt Lake City, Utah
June 1981 - August 1981
Designed and developed software for graphical display of model products. Compiled daily video loops of satellite data for NWS Forecast Office and Headquarters discussions. Periodically led Headquarters' map discussion and authored summary and forecast for distribution to entire Western Region.
Research Assistant
Atmospheric Science Research Center - State University of New York at Albany
September 1979 - May 1981
Assisted in design, execution, and analysis of research on tropospheric aerosols and the Antarctic. Developed Fortran programs for versatile statistical analysis of atmospheric sounding data.
Scientist III
Universities Space Research Association - NASA GSFC
May 2011 - Present
Member of Atmospheric Chemistry and Dynamics Branch at NASA Goddard Space Flight Center providing scientific and programming support for The GMI project studying chemical and transport aspects of the lower and middle atmosphere, including: development and adaptation of atmospheric and chemical modeling codes; development of diagnostic software for analysis and visualization of model output; system administration of over 20 Linux (Gentoo) workstations.
Education
Professional Societies
American Meteorological Society
1979 - Present
American Geophysical Union
1998 - Present
Publications
Refereed
2022. "Unexpected Repartitioning of Stratospheric Inorganic Chlorine After the 2020 Australian Wildfires." Geophysical Research Letters 49 (14): [10.1029/2022gl098290] [Journal Article/Letter]
2022. "The NASA Atmospheric Tomography (ATom) Mission: Imaging the Chemistry of the Global Atmosphere." Bulletin of the American Meteorological Society 103 (3): E761-E790 [10.1175/bams-d-20-0315.1] [Journal Article/Letter]
2021. "Tropospheric Age-of-Air: Influence of SF6 Emissions on Recent Surface Trends and Model Biases." Journal of Geophysical Research: Atmospheres 126 (19): [10.1029/2021jd035451] [Journal Article/Letter]
2021. "Heterogeneity and chemical reactivity of the remote troposphere defined by aircraft measurements." Atmospheric Chemistry and Physics 21 (18): 13729-13746 [10.5194/acp-21-13729-2021] [Journal Article/Letter]
2019. "Disentangling the Drivers of the Summertime Ozone‐Temperature Relationship Over the United States." Journal of Geophysical Research: Atmospheres 124 (19): 10503-10524 [10.1029/2019jd030572] [Journal Article/Letter]
2018. "Cloud impacts on photochemistry: building a climatology of photolysis rates from the Atmospheric Tomography mission." Atmospheric Chemistry and Physics 18 (22): 16809--16828 [10.5194/acp-18-16809-2018] [Journal Article/Letter]
2018. "Changes in Global Tropospheric OH Expected as a Result of Climate Change Over the Last Several Decades." Journal of Geophysical Research: Atmospheres 123 (18): 10,774-10,795 [10.1029/2018jd028388] [Journal Article/Letter]
2018. "How well can global chemistry models calculate the reactivity of short-lived greenhouse gases in the remote troposphere, knowing the chemical composition." Atmospheric Measurement Techniques 11 (5): 2653-2668 [10.5194/amt-11-2653-2018] [Journal Article/Letter]
2017. "Investigation of global particulate nitrate from the AeroCom phase III experiment." Atmospheric Chemistry and Physics 17 (21): 12911-12940 [10.5194/acp-17-12911-2017] [Journal Article/Letter]
2017. "Global atmospheric chemistry – which air matters." Atmospheric Chemistry and Physics 17 (14): 9081-9102 [10.5194/acp-17-9081-2017] [Journal Article/Letter]
2017. "Global O3–CO correlations in a chemistry and transport model during July–August: evaluation with TES satellite observations and sensitivity to input meteorological data and emissions." Atmospheric Chemistry and Physics 17 (13): 8429-8452 [10.5194/acp-17-8429-2017] [Journal Article/Letter]
2017. "Causes of interannual variability over the southern hemispheric tropospheric ozone maximum." Atmospheric Chemistry and Physics 17 (5): 3279-3299 [10.5194/acp-17-3279-2017] [Journal Article/Letter]
2017. "Quantifying The Causes of Differences in Tropospheric OH within Global Models." Journal of Geophysical Research: Atmospheres [10.1002/2016jd026239] [Journal Article/Letter]
2016. "Chemical and dynamical impacts of stratospheric sudden warmings on Arctic ozone variability." Journal of Geophysical Research: Atmospheres 121 (19): 11,836-11,851 [10.1002/2016jd025128] [Journal Article/Letter]
2016. "The Transit-Time Distribution from the Northern Hemisphere Midlatitude Surface." Journal of the Atmospheric Sciences 73 (10): 3785-3802 [10.1175/jas-d-15-0289.1] [Journal Article/Letter]
2016. "Evaluation of the aerosol vertical distribution in global aerosol models through comparison against CALIOP measurements: AeroCom phase II results." J. Geophys. Res. Atmos. 121 (12): 7254-7283 [10.1002/2015jd024639] [Journal Article/Letter]
2016. "An observationally constrained evaluation of the oxidative capacity in the tropical western Pacific troposphere." J. Geophys. Res. Atmos. 121 (12): 7461–7488 [10.1002/2016jd025067] [Journal Article/Letter]
2016. "Using beryllium-7 to assess cross-tropopause transport in global models." Atmos. Chem. Phys. Discuss. 15 (18): 26131-26189 [10.5194/acp-16-4641-2016] [Journal Article/Letter]
2016. "Origins of tropospheric ozone interannual variation over Réunion: A model investigation." J. Geophys. Res. Atmos. 121 (1): 521 - 537 [10.1002/ 2015JD023981] [Journal Article/Letter]
2015. "Trends and variability in surface ozone over the United States." Journal of Geophysical Research: Atmospheres 120 [10.1002/2014JD022784] [Journal Article/Letter]
2015. "The POLARCAT Model Intercomparison Project (POLMIP): overview and evaluation with observations ." Atmos. Chem. Phys. 15 6721-6744 [10.5194/acp-15-6721-2015] [Journal Article/Letter]
2015. "Measuring and modeling the lifetime of nitrous oxide including its variability." J. Geophys. Res. Atmos. 120 (11): 5693-5705 [10.1002/2015jd023267] [Journal Article/Letter]
2015. "Origin of springtime ozone enhancements in the lower troposphere over Beijing: in situ measurements and model analysis." Atmos. Chem. Phys. 15 (9): 5161-5179 [10.5194/acp-15-5161-2015] [Journal Article/Letter]
2015. "Multi-model study of chemical and physical controls on transport of anthropogenic and biomass burning pollution to the Arctic." Atmos. Chem. Phys. 15 (6): 3575-3603 [10.5194/acp-15-3575-2015] [Journal Article/Letter]
2015. "Biomass burning influence on high-latitude tropospheric ozone and reactive nitrogen in summer 2008: a multi-model analysis based on POLMIP simulations." Atmos. Chem. Phys. 15 (11): 6047-6068 [10.5194/acp-15-6047-2015] [Journal Article/Letter]
2014. "Inorganic chlorine variability in the Antarctic vortex and implications for ozone recovery." J. Geophys. Res. Atmos. 119 (24): 14,098-14,109 [10.1002/2014jd022295] [Journal Article/Letter]
2014. "The AeroCom evaluation and intercomparison of organic aerosol in global models." Atmos. Chem. Phys. 14 10845-10895 [doi:10.5194/acp-14-10845-2014] [Journal Article/Letter]
2014. "An AeroCom assessment of black carbon in Arctic snow and sea ice." Atmos. Chem. Phys. 14 (5): 2399-2417 [10.5194/acp-14-2399-2014] [Journal Article/Letter]
2009. "The impact of tropical recirculation on polar composition." Atmos. Chem. Phys. 9 (7): 2471-2480 [10.5194/acp-9-2471-2009] [Journal Article/Letter]
2008. "Quantifying errors in trace species transport modeling." Proceedings of the National Academy of Sciences 105 (50): 19,617-19,621 [10.1073/pnas.0806541106] [Journal Article/Letter]
2007. "Model study of the cross-tropopause transport of biomass burning pollution." Atmos Chem Phys 7 3713-3736 [Journal Article/Letter]
2006. "Trends in Stratospheric Ozone: Lessons Learned from a 3D Chemical Transport Model." J. Atmos. Sci. 63 (3): 1028-1041 [10.1175/JAS3650.1] [Journal Article/Letter]
2006. "Trends in stratospheric ozone: Lessons learned from a 3-D chemical transport model." J Atmos Sc 63 1028-1041 [Journal Article/Letter]
1993. "A 3D Simulation of the Early Winter Distribution of Reactive Chlorine in the North Polar Vortex." Geophys. Res. Lett. 20 (12): 1271-1274 [10.1029/93GL01586] [Journal Article/Letter]
1990. "Wintertime Nitric Acid Chemistry: Implications from Three Dimensional Model Calculations." Journal of the Atmospheric Sciences 47 (22): 2696-2709 [0.1175/1520-0469(1990)047] [Journal Article/Letter]
1986. "Tidal estimation in the Atlantic and Indian Oceans." Marine Geodesy 10 (3-4): 309-350 [10.1080/01490418609388028] [Journal Article/Letter]