SOARS Undergraduates

Graylen Boone, North Carolina State University, Meteorology, 2011

Andre Perkins, University of Wisconsin, Atmospheric and Oceanic Science/Computer Science, 2011

Stone Abdullah, Jackson State University, Earth System Science, 2013

Gabriela De La Cruz Tello, San Jose State University, Meteorology, 2013

Graduate Student Visitors

Michael Coe, Ph.D., 1997, Department of Atmospheric and Oceanic Sciences, University of Wisconsin, Madison (John Kutzbach, advisor)

Coe, M.T., and G.B. Bonan. 1997. Feedbacks between climate and surface water in northern Africa during the middle Holocene. Journal of Geophysical Research 102D:11087-11101.

Steve Craig, Ph.D., 1998, Department of Meteorology, Stockholm University (Kim Holmen, advisor)

Craig, S.G., K.J. Holmen, G.B. Bonan, and P.J. Rasch. 1998. Atmospheric CO2 simulated by the National Center for Atmospheric Research Community Climate Model 1. Mean fields and seasonal cycles. Journal of Geophysical Research 103D: 13213-13235.

Ben Cook, Ph.D., 2007, Department of Environmental Sciences, University of Virginia (Howard Epstein, advisor)

Cook, B.I., G.B. Bonan, and S. Levis. 2006. Soil moisture feedbacks to precipitation in southern Africa. Journal of Climate 19:4198-4206.

Cook, B.I., G.B. Bonan, S. Levis, and H.E. Epstein. 2008. Rapid vegetation responses and feedbacks amplify climate model response to snow cover changes. Climate Dynamics 30:391-406.

Cook, B.I., G.B. Bonan, S. Levis, and H.E. Epstein. 2008. The thermoinsulation effect of snow cover within a climate model. Climate Dynamics 31:107-124.

Maria Malene Kvalevag, Ph.D., 2009, Department of Geosciences, University of Oslo (Gunnar Myhre, advisor)

Kvalevag, M.M., G. Myhre, G. Bonan, and S. Levis. 2010. Anthropogenic land cover changes in a GCM with surface albedo changes based on MODIS data. International Journal of Climatology 30:2105-2117.

Abigail Swann, Ph.D., 2010, Earth and Planetary Science, University of California, Berkeley (Inez Fung, advisor)

Swann, A.L., I.Y. Fung, S. Levis, G.B. Bonan, and S.C. Doney. 2010. Changes in Arctic vegetation amplify high-latitude warming through the greenhouse effect. Proceedings of the National Academy of Sciences USA 107:1295-1300.

William Sacks, Ph.D., 2010, Environment and Resources, University of Wisconsin, Madison (Jon Foley, advisor)

Sacks, W.J., B.I. Cook, N. Buenning, S. Levis, and J.H. Helkowski. 2009. Effects of global irrigation on the near-surface climate. Climate Dynamics 33:159-175.

Charlotte Kendra G. Castillo, Ph.D., 2011, Department of Earth and Atmospheric Sciences, Purdue University (Kevin Gurney, advisor) [NCAR ASP graduate student visitor program]

Castillo, C.K.G., S. Levis, and P. Thornton. 2012. Evaluation of the new CNDV option of the Community Land Model: effects of dynamic vegetation and interactive nitrogen on CLM4 means and variability. Journal of Climate 25:3702-3714.

Danica Lombardozzi, Ph.D., 2012, Department of Ecology and Evolutionary Biology, Cornell University (Jed Sparks, advisor) [NCAR ASP graduate student visitor program]

Lombardozzi, D., J.P. Sparks, G. Bonan, and S. Levis. 2012. Ozone exposure causes a decoupling of conductance and photosynthesis: implications for the Ball-Berry stomatal conductance model. Oecologia 169:651-659.

Lombardozzi, D., S. Levis, G. Bonan, and J.P. Sparks. 2012. Predicting photosynthesis and transpiration responses to ozone: decoupling modeled photosynthesis and stomatal conductance. Biogeosciences 9:3113-3130.

Lombardozzi, D., J.P. Sparks, and G. Bonan. 2013. Integrating O3 influences on terrestrial processes: photosynthetic and stomatal response data available for regional and global modeling. Biogeosciences 10:6815-6831.

R. Quinn Thomas, Ph.D., 2012, Department of Ecology and Evolutionary Biology, Cornell University (Christine Goodale, advisor)

Thomas, R.Q., G.B. Bonan, and C.L. Goodale. 2013. Insights into mechanisms governing forest carbon response to nitrogen deposition: a model-data comparison using observed responses to nitrogen addition. Biogeosciences 10:3869-3887.

Brendan Rogers, Ph.D., 2014, Earth System Science Department, University of California, Irvine (James Randerson, advisor) [NCAR ASP graduate student visitor program]

Rogers, B.M., J.T. Randerson, and G.B. Bonan. 2013. High-latitude cooling associated with landscape changes from North American boreal forest fires. Biogeosciences 10:699-718.

Nick Smith, Ph.D., 2016, Department of Biological Sciences, Purdue University (Jeffrey Dukes, advisor)

Lombardozzi, D., S. Levis, G. Bonan, P.G. Hess, and J.P. Sparks. 2015. The influence of chronic ozone exposure on global carbon and water cycles. Journal of Climate 28:292-305.

Smith, N.G., D. Lombardozzi, A. Tawfik, G. Bonan, and J.S. Dukes. 2017. Biophysical consequences of photosynthetic temperature acclimation for climate. Journal of Advances in Modeling Earth Systems 9:536-547, doi:10.1002/2016MS000732.

Jonathan Buzan, Ph.D. candidate, Earth and Environmental Sciences, University of New Hampshire (Matthew Huber, advisor), 2012, 2013

Justin Perket, Ph.D. candidate, Applied Physics, University of Michigan (Mark Flanner, advisor), 2014-2015

Emily Kyker-Snowman, Ph.D. candidate, Earth and Environmental Sciences, University of New Hampshire (Stuart Grandy, advisor), 2015

Bridget Darby, Ph.D. candidate, Department of Ecology and Evolutionary Biology, Cornell University (Christine Goodale, advisor), 2015

Leo van Kampenhout, Ph.D. candidate, Institute for Marine and Atmospheric research Utrecht (IMAU), Utrecht University (Michiel van der Broeke, advisor), 2015

Post-Doctoral Visitors

Sean Swenson, (Ph.D., 2002, Department of Physics, University of Colorado, Boulder), 2006-2008 [NCAR ASP visitor program]

Swenson, S., and J. Wahr. 2007. Multi-sensor analysis of water storage variations of the Caspian Sea. Geophys. Res. Lett., 34, L16401, doi:10.1029/2007GL030733.

Swenson, S., J. Famiglietti, J. Basara, and J. Wahr. 2008. Estimating profile soil moisture and groundwater variations using GRACE and Oklahoma Mesonet soil moisture data. Water Resources Research, 44, W01413, doi:10.1029/2007WR006057.

Swenson, S., D. Chambers, and J. Wahr. 2008. Estimating geocenter variations from a combination of GRACE and ocean model output. J. Geophys. Res., 113, B08410, doi:10.1029/2007JB005338.

Swenson, S., and J. Wahr. 2009. Monitoring the water balance of Lake Victoria, East Africa, from space. Journal of Hydrology 370:163-176.

Swenson, S. 2010. Assessing high-latitude winter precipitation from global precipitation analyses using GRACE. Journal of Hydrometeorology 11:405-420.

Erich Fischer, (Ph.D., 2007, Institute for Atmospheric and Climate Science, ETH Zurich), 2009-2010

Fischer, E.M., D.M. Lawrence, and B.M. Sanderson. 2011. Quantifying uncertainties in projections of extremes - a perturbed land surface parameter experiment. Climate Dynamics 37:1381-1398.

William Sacks, (Ph.D., 2010, Environment and Resources, University of Wisconsin, Madison), 2010-2011 [NCAR ISP visitor program]

Andrew Fox, (Ph.D., 2004, Department of Geography, University of Cambridge), 2011-2012 [NCAR ISP visitor program]

Hanna Lee, (Ph.D., 2009, Department of Biology, University of Florida), 2011-2014

Swenson, S.C., D.M. Lawrence, and H. Lee. 2012. Improved simulation of the terrestrial hydrological cycle in permafrost regions by the Community Land Model. J. Adv. Model. Earth Syst., 4, M08002, doi:10.1029/2012MS000165.

Lee, H., S.C. Swenson, A.G. Slater, and D.M. Lawrence. 2014. Effects of excess ground ice on projections of permafrost in a warming climate. Environmental Research Letters, 9, 124006, doi: 10.1088/1748-9326/9/12/124006.

William Wieder, (Ph.D., 2011, Department of Ecology and Evolutionary Biology, University of Colorado, Boulder), 2011-2012 [NCAR ISP visitor program], 2012-2014

Wieder, W.R., G.B. Bonan, and S.D. Allison. 2013. Global soil carbon projections are improved by modelling microbial processes. Nature Climate Change 3:909-912.

Wieder, W.R., J. Boehnert, and G.B. Bonan. 2014. Evaluating soil biogeochemistry parameterizations in Earth system models with observations. Global Biogeochemical Cycles 28:211-222, doi:10.1002/2013GB004665.

Wieder, W.R., A.S. Grandy, C.M. Kallenbach, and G.B. Bonan. 2014. Integrating microbial physiology and physio-chemical principles in soils with the MIcrobial-MIneral Carbon Stabilization (MIMICS) model. Biogeosciences 11:3899-3917.

Wang, Y.P., B.C. Chen, W.R. Wieder, et al. 2014. Oscillatory behavior of two nonlinear microbial models of soil carbon decomposition. Biogeosciences 11:1817-1831.

Danica Lombardozzi, (Ph.D., 2012, Department of Ecology and Evolutionary Biology, Cornell University), 2012-2015

Lombardozzi, D., G.B. Bonan, and D.W. Nychka. 2014. The emerging anthropogenic signal in land-atmosphere carbon-cycle coupling. Nature Climate Change 4:796-800.

Lombardozzi, D., S. Levis, G. Bonan, P.G. Hess, and J.P. Sparks. 2015. The influence of chronic ozone exposure on global carbon and water cycles. Journal of Climate 28:292-305.

R. Quinn Thomas, (Ph.D., 2012, Department of Ecology and Evolutionary Biology, Cornell University), 2012-2013

Thomas, R.Q., and M. Williams. 2014. A model using marginal efficiency of investment to analyze carbon and nitrogen interactions in terrestrial ecosystems (ACONITE Version 1). Geoscientific Model Development 7:2015-2037.

Kyla Dahlin, (Ph.D., 2012, Biology, Stanford University), 2012-2014 [NCAR ASP visitor program]

Sanjiv Kumar, (Ph.D., 2011, Civil Engineering, Purdue University), 2012-2014

Kumar, S., P.A. Dirmeyer, D.M. Lawrence, et al. 2014. Effects of realistic land surface initializations on subseasonal to seasonal soil moisture and temperature predictability in North America and in changing climate simulated by CCSM4. JGR-Atmospheres, 119, 23, 13250-13270, doi:10.1002/2014JD022110

Kumar, S., D.M. Lawrence, P.A. Dirmeyer, and J. Sheffield. 2014. Less reliable water availability in the 21st century climate projections. Earth's Future, 2, 152-160, doi:10.1002/2013EF000159

Ahmed Tawfik, (Ph.D., 2012, Atmospheric Science, University of Michigan), 2013-2014

Betts, A.K., R. Desjardins A.C.M. Beljaars and A.Tawfik. 2015. Observational study of land-surface-cloud-atmosphere coupling on daily timescales. Frontiers in Earth Science, 3:13, doi:10.3389/feart.2015.00013.

Tawfik, A., P.A. Dirmeyer, and J.A. Santanello Jr. 2015. The heated condensation framework. Part I: Description and Southern Great Plains case study. Journal of Hydrometeorology, in press.

Tawfik, A., P.A. Dirmeyer, and J.A. Santanello Jr. 2015. The heated condensation framework. Part II:  Climatological behavior of convective initiation and land-atmosphere coupling over the continental United States. Journal of Hydrometeorology, in press.

Elizabeth Burakowski, (Ph.D., 2013, Natural Resources and Earth Systems Science, University of New Hampshire), 2014-2015

Other Student Visitors and Collaborators

2009

Edouard Davin, Post-Doctoral Scientist, Institute for Atmospheric and Climate Science, ETH Zurich (Sonia Seneviratne, advisor)

Davin, E.L., R. Stoeckli, E.B. Jaeger, S. Levis and S.I. Seneviratne. 2011. COSMO-CLM2: a new version of the COSMO-CLM model coupled to the Community Land Model. Climate Dynamics 37:1889-1907.

Su-Jong Jeong, Ph.D., 2010, School of Earth and Environmental Sciences, Seoul National University (Chang-Hoi Ho, advisor)

Jeong, S.-J., C.-H. Ho, T.-W. Park, J. Kim, and S. Levis. 2010. Impact of vegetation feedback on the temperature and its diurnal range over the Northern Hemisphere during summer in a 2xCO2 climate. Climate Dynamics 37:821-833.

Paulo Oliveira, Ph.D. candidate, Institute for Atmospheric and Climate Science, ETH Zurich (Sonia Seneviratne, advisor)

Oliveira, P.J.C., E.L. Davin, S. Levis, and S.I. Seneviratne. 2011. Vegetation-mediated impacts of trends in global radiation on land hydrology: A global sensitivity study. Global Change Biology 17:3453-3467.

2010

Steven Edburg, Post-doctoral researcher, Department of Geography, University of Idaho (Jeffrey Hicke, advisor)

Edburg, S.L., J.A. Hicke, D.M. Lawrence, and P.E. Thornton. (2011). Simulating coupled carbon and nitrogen dynamics following mountain pine beetle outbreaks in the western United States. J. Geophys. Res., 116, G04033, doi:10.1029/2011JG001786.

Ruth Lorenz, Ph.D. candidate, Institute for Atmospheric and Climate Science, ETH Zurich (Sonia Seneviratne, advisor)

Mingjie Shi, Ph.D. candidate, Jackson School of Geosciences, University of Texas, Austin (Zong-Liang Yang, advisor)

Leta Klauser, M.S. candidate, Institute for Atmospheric and Climate Science, ETH Zurich (Edouard Davin, advisor)

2011

Rene Orth, Ph.D. candidate, Institute for Atmospheric and Climate Science, ETH Zurich (Sonia Seneviratne, advisor)

2012

Terrence Mullens, M.S. candidate, Department of Meteorology, San Jose State University (Menglin Jin, advisor)

Erica Johns, M.S. candidate, University of Tennesse

2013

Stuart Riddick, Post-doctoral researcher, Cornell University (Peter Hess, advisor)

2014

Hanna Post, Institute of Bio- and Geosciences, Agrosphere (IBG-3), Forschungszentrum Julich GmbH, 2014

Candida Dewes, Post-doctoral researcher, Department of Environmental Sciences, University of Virginia (Deborah Lawrence, advisor)

Jacquelyn Shuman, Post-doctoral researcher, Department of Environmental Sciences, University of Virginia (H.H. Shugart, advisor)

2015

Lorea Garcia San Martin, Ph.D. candidate, European Commissions's Joint Research Centre in Ispra, Italy (Alessandro Cescatti, advisor)