May 2012 Resume

David E. England

dengland5@ColumbiaState.edu

Objective

To become a Mathematics Professor.

Employment History

Columbia State

Columbia, TN

Adjunct Professor, Mathematics

2010 to present

Teaching Learning Support Math, statistics, and algebra up to the Calculus level.

Jackson State

Jackson, TN

Adjunct Professor, Mathematics

2009 to present

Teaching Developmental Math.

Mars Hill Bible School

Florence, AL

Teacher, Mathematics

2009 to 2010

Taught High School algebra.

ITT Educational Services, Inc.

Madison, AL

Adjunct Professor, Mathematics

2009 to 2010

Taught College level algebra.

ThermaSave of IHSN

Florence, AL

Engineer, Manufacturing

2005 to 2007

Worked in the construction, shipping and setup of IHSN franchises for the manufacture of Structurally Insulated Panels (SIPs). Also built and assembled houses from SIPs.

England Farms

Florence, AL

Consultant/Farmer

2001 to 2005

Freelance Computer Technician and worked on the family farm.

Instrumental Sciences, Inc.

Madison, AL

Mathematician, Research and Development

2000 to 2001

Investigated loss of high frequency radio transmissions due to weather events.

Applied Data Trends

Madison, AL

Mathematician, Research and Development

1998 to 2000

Extracted climate data from NASA and NOAA databases to improve climate models.

Global Hydrology and Climate Center

Huntsville, AL

Post Doctoral Research Associate, Atmospheric Simulations

1995 to 1997

Worked at the Tennessee Valley Authority simulating ozone transport. Continued development of Atmospheric simulations. Wrote papers and proposals.

University of Alabama in Huntsville

Huntsville, AL

Lecturer, Mathematics

1993 to 1995

Taught Calculus and Differential Equations. Continued research and development of atmospheric numerical models. Wrote papers and proposals.

DESE Research

Huntsville, AL

Engineer, Testing and Evaluation

1992 to 1993

Analyzed and Designed an experiment to determine the near-miss distance for the Anti-Satellite (ASAT) project. Provided intelligence support for the First Gulf War.

Education

University of Alabama in Huntsville

Huntsville, AL

Ph.D.

06/1993

Major: Applied Mathematics

Minor: Atmospheric Sciences

M.S.

12/1987

Major: Mathematics

Minor: Atmospheric Sciences

University of North Alabama

Florence, AL

B.S.

05/1984

Major: Mathematics

Minor: Computer Science

Publications

Article: On the Behavior of the Stable Boundary Layer and the Role of Initial Conditions

(Author)

Pure and Applied Geophysics vol 162, iss 10, 2005: 1811-1829

Article: Predictability of the Stable Atmospheric Boundary Layer

(Author)

Journal of Atmospheric Sciences vol 52, 1995: 1602-1614

Article: Stability Functions based upon Shear Functions

(Author)

Boundary-Layer Meteorology vol 74, 1995: 113-130

Article: Concerning the Limiting Behavior of Time-dependent Slope Winds

(Author)

Journal of Atmospheric Sciences vol 50, 1993: 1610-1613

Conference paper: Time-step Sensitivity Analysis of Slope Flows from a Dynamical Systems Perspective

(Author)

Conference: Sixth Conference on Mountain Meteorology (09/29/1992), Portland, OR.

QuickSearch:   Number of matching entries: 0.

Search Settings

Author Title Year Journal/Proceedings Reftype DOI/URL
England, D.E. & McNider, R.T. Stability functions based upon shear functions

1995 Boundary-Layer Meteorology
Vol. 74, pp. 113-130
article DOI
Abstract: The stability functions for momentum and heat under a Richardson number formulation are derived from the nondimensional shear functions under a Monin-Obukhov formulation. The Prandtl number is also derived as a function of the Richardson number. Previously, this has been done only in a limited sense. Because the Richardson number formulation is expressed in closed form, iterative techniques are no longer needed in numerical models that use Monin-Obukhov similarity theory. This time-saving approach is made possible by deriving expressions for the friction velocity and temperature in terms of the Richardson-number-dependent stability functions. In addition, the Richardson number approximation in the lowest layer is made to depend explicitly upon the surface roughness.
BibTeX:

@article{England1995,
  author = {England, D.~E. and McNider, R.~T.},
  title = {Stability functions based upon shear functions},
  journal = {Boundary-Layer Meteorology},
  year = {1995},
  volume = {74},
  pages = {113-130},
  doi = {http://dx.doi.org/10.1007/BF00715713}
}
England, D.E. & McNider, R.T. Concerning the Limiting Behavior of Time-dependent Slope Winds.

1993 Journal of Atmospheric Sciences
Vol. 50, pp. 1610-1616
article DOI
Abstract: Some controversy has developed concerning the results of analytical katabatic-flow models, which appear to show that slope flows become infinite for zero slope angles and adiabatic lapse rates. It is shown that in the limits of zero slope angles and adiabatic conditions an indeterminate form is on hand, and the application of L’Hôpital’s rule is in order. Application of the rule results in limiting cases that agree with physical expectations and the original slope-flow model evaluated for a zero slope or adiabatic lapse rate.
BibTeX:

@article{England1993a,
  author = {England, D.~E. and McNider, R.~T.},
  title = {Concerning the Limiting Behavior of Time-dependent Slope Winds.},
  journal = {Journal of Atmospheric Sciences},
  year = {1993},
  volume = {50},
  pages = {1610-1616},
  doi = {http://dx.doi.org/10.1175/1520-0469}
}
McNider, R.T., England, D.E., Friedman, M.J. & Shi, X. Predictability of the Stable Atmospheric Boundary Layer

1995 J. Atmos. Sci.
Vol. 52(10)Journal of the Atmospheric Sciences, pp. 1602-1614
article DOI URL
Abstract: The partial differential equation set for the horizontally homogeneous
nocturnal boundary layer under first-order closure is discretized
and truncated to a two-layer system. This system can be treated as
a coupled fourlayer ordinary differential equation set. Using techniques
of nonlinear dynamics, including numerical continuation and nonlinear
stability analysis, characteristics of the solutions are developed.
The bifurcation diagrams show classic S-shaped behavior so that the
equations support multivalued solutions for certain values of external
parameters. Both stable and unstable solution regimes exist with
multiple, stable limit points. The results have strong implications
for the predictability of the stable boundary layer in that even
slight changes in initial conditions (or perturbations) would lead
to quite different solutions in terms of temperature and wind speed
for the regions of multivalued solutions. Practically, this means
that predictions of frost or pollution dispersion may not be made
with confidence for certain parameter regimes. If this type of behavior
holds in the full partial differential equation set, it also means
that additional physics or numerical sophistication in models will
not improve the prediction of winds or temperature.
BibTeX:

@article{McNider1995a,
  author = {McNider, Richard T. and England, David E. and Friedman, Mark J. and Shi, Xingzhong},
  title = {Predictability of the Stable Atmospheric Boundary Layer},
  booktitle = {Journal of the Atmospheric Sciences},
  journal = {J. Atmos. Sci.},
  publisher = {American Meteorological Society},
  year = {1995},
  volume = {52},
  number = {10},
  pages = {1602--1614},
  url = {http://dx.doi.org/10.1175/1520-0469(1995)0522.0.CO;2},
  doi = {http://dx.doi.org/10.1175/1520-0469(1995)0522.0.CO;2}
}
Shi, X., McNider, R.T., Singh, M.P., England, D.E., Friedman, M.J., Lapenta, W.M. & Norris, W.B. On the Behavior of the Stable Boundary Layer and the Role of Initial Conditions

2005 Pure and Applied Geophysics
Vol. 162, pp. 1811-1829
article DOI
Abstract: Previous studies of the stable atmospheric boundary layer using techniques of nonlinear dynamical systems (MCNIDER et al., 1995) have shown that the equations support multiple solutions in certain parameter spaces. When geostrophic speed is used as a bifurcation parameter, two stable equilibria are found—a warm solution corresponding to the high-wind regime where the surface layer of the atmosphere stays coupled to the outer layer, and a cold solution corresponding to the low-wind, decoupled case. Between the stable equilibria is an unstable region where multiple solutions exist. The bifurcation diagram is a classic S shape with the foldback region showing the multiple solutions. These studies were carried out using a simple two-layer model of the atmosphere with a fairly complete surface energy budget. This allowed the dynamical analysis to be carried out on a coupled set of four ordinary differential equations. The present paper extends this work by examining additional bifurcation parameters and, more importantly, analyzing a set of partial differential equations with full vertical dependence. Simple mathematical representations of classical problems in dynamical analysis often exhibit interesting behavior, such as multiple solutions, that is not retained in the behavior of more complete representations. In the present case the S-shaped bifurcation diagram remains with only slight variations from the two-layer model. For the parameter space in the foldback region, the evolution of the boundary layer may be dramatically affected by the initial conditions at sunset. An eigenvalue analysis carried out to determine whether the system might support pure limit-cycle behavior showed that purely complex eigenvalues are not found. Thus, any cyclic behavior is likely to be transient.
BibTeX:

@article{Shi2005,
  author = {Shi, X. and McNider, R.~T. and Singh, M.~P. and England, D.~E. and Friedman, M.~J. and Lapenta, W.~M. and Norris, W.~B.},
  title = {On the Behavior of the Stable Boundary Layer and the Role of Initial Conditions},
  journal = {Pure and Applied Geophysics},
  year = {2005},
  volume = {162},
  pages = {1811-1829},
  doi = {http://dx.doi.org/10.1007/s00024-005-2694-7}
}

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