Nelson L. Seaman

Nelson L. Seaman

  • Professor of Meteorology
618 Walker Building
University Park, PA 16802
Phone: (814) 863-1583


  1. PhD -- The Pennsylvania State University


  • Member of the Graduate Faculty


Research Interests

Mesoscale modeling, objective analysis techniques, cyclogenesis, four-dimensional data assimilation, boundary layer processes, shallow and deep convection.

Teaching Interests

Numerical weather prediction, frontal and mesoscale analysis, atmospheric dispersion.

Dr. Seaman has developed several different numerical models to investigate the dynamics of orographic flows, sea breezes, extratropical storm development, pollution transport, urban influences, and the interactions of boundary layer and convective processes.

Selected Publications

 Seaman, N.L., D.R. Stauffer and A.M. Lario-Gibbs, 1995:  A Multi-Scale Four-Dimensional Data Assimilation System Applied in the San Joaquin Valley During SARMAP:  Part I:  Modeling Design and Basic Performance Characteristics.  J. Appl. Meteor., 34, 1739-1761.

Wang, W. and N.L. Seaman, 1997:  A Comparison Study of Convective Parameterization Schemes in a  Mesoscale Model.  Mon. Wea. Rev., 125, 252-278

Spangenberg, D.A., G.G. Mace, T.P. Ackerman, N.L. Seaman and B.J. Soden, 1997: Evaluation of Model Simulated Upper Troposphere Humidity using 6.7 Micron Satellite Observations.  J. Geophys Res. (Atmos.), 102, 25,737-749.

Stauffer, D.R., N.L. Seaman, G.K. Hunter, S.M. Leidner, A.M. Lario-Gibbs and S. Tanrikulu, 2000:  A Field-Coherence Technique for Meteorological Field-Program Design for Air-Quality Studies.  Part I: Description and Interpretation.  J. Appl. Meteor., 39, 297-316.

Tanrikulu, S., D.R. Stauffer, N.L. Seaman and A.J. Ranzieri, 2000: A Field-Program Design for Air-Quality Studies.  Part II: Evaluation in the San Joaquin Valley.  J. App. Meteor., 39, 317-334.

Michelson, S.A. and N.L. Seaman, 2000: Assimilation of NEXRAD-VAD Winds in Meteorological Simulations over the Northeast U.S.  J. Appl. Meteor., 39, 367-383.

Seaman, N.L. and S.A. Michelson, 2000: Mesoscale Meteorological Structure of a High-Ozone Episode during the 1995 NARSTO-Northeast Study.  J. Appl. Meteor., 39, 384-398.

Shafran, P.C., N.L. Seaman and G.A. Gayno, 2000: Evaluation of Numerical Predictions of Boundary-Layer Structure during the Lake Michigan Ozone Study (LMOS).  J. Appl. Meteor., 39, 412-426.

Seaman, N.L., 2000: Meteorological Modeling for Air-Quality Assessments.  Atmospheric Environment, 34 2231-2259.

Wyngaard, J.C., N.L. Seaman, S.J. Kimmel, M.J. Otte, X. Di, and K.E. Gilbert, 2000: Concepts, Observations, and Simulation of Refractive-Index Turbulence in the Lower Atmosphere.  Accepted for publication, Radio Science, 35 pp.

Wyngaard, J.C., S.J. Kimmel, M. Otte, N.L. Seaman, and K.E. Gilbert, 2000: Refractive-Index Turbulence in the Lower Atmosphere: A Primer.  Submitted to Radio Science, 25 pp.

Alapaty, K., N.L. Seaman, D.S. Niyogi, and A.F. Hanna, 2000:  Assimilating Surface Data to Improve the Accuracy of Atmospheric Boundary Layer Simulations.  Accepted for J. Appl. Meteor., 39, 28 pp.

Deng, A, N.L. Seaman and J.S. Kain, 2000a:  A shallow-convection parameterization for mesoscale models Part I:  Sub-model description and preliminary applications.  To be submitted for  J. Atmos. Sci., 57, 36 pp.

Deng, A, N.L. Seaman and J.S. Kain, 2000a:  A shallow-convection parameterization for mesoscale models Part II:  Verification and sensitivity studies.  To be submitted for  J. Atmos. Sci., 57, 34 pp.

Leidner, S.M., D.R. Stauffer, and N.L. Seaman, 2001:  Improving Short-Term Numerical Weather Predictions in the California Coastal Zone by Dynamic Initialization of the Marine Boundary Layer.  In press, Mon. Wea. Rev., 128, 24 pp.

Otte, T.L., N.L. Seaman and D.R. Stauffer, 2001:  A heuristic study on the importance of anisotropic error distributions in data assimilation. Accepted for publication, Mon. Wea. Rev., 129, 37 pp.