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Alternative formulations for incorporating lateral boundary data into limited area models

(2010) MONTHLY WEATHER REVIEW. 138(7). p.2967-2882
Author
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Abstract
Limited-area models (LAMs) use higher resolutions and more advanced parameterizations of physical processes than global numerical weather prediction models, but suffer from one additional source of error-the lateral boundary condition (LBC). The large-scale model passes the information on its fields to the LAM only over the narrow coupling zone at discrete times separated by a coupling interval of several hours. The LBC temporal resolution can be lower than the time necessary for a particular meteorological feature to cross the boundary. A LAM user who depends on LBC data acquired from an independent prior analysis or parent model run can find that usual schemes for temporal interpolation of large-scale data provide LBC data of inadequate quality. The problem of a quickly moving depression that is not recognized by the operationally used gridpoint coupling scheme is examined using a simple one-dimensional model. A spectral method for nesting a LAM in a larger-scale model is implemented and tested. Results for a traditional flow-relaxation scheme combined with temporal interpolation in spectral space are also presented.
Keywords
SEMI-LAGRANGIAN SCHEMES, SHALLOW-WATER EQUATIONS, REGIONAL SPECTRAL MODEL, DOMAIN SIZE, DYNAMICS, SENSITIVITY, PREDICTION, ACCURACY, ERROR

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MLA
Tudor, Martina, and Piet Termonia. “Alternative Formulations for Incorporating Lateral Boundary Data into Limited Area Models.” MONTHLY WEATHER REVIEW 138.7 (2010): 2967–2882. Print.
APA
Tudor, M., & Termonia, P. (2010). Alternative formulations for incorporating lateral boundary data into limited area models. MONTHLY WEATHER REVIEW, 138(7), 2967–2882.
Chicago author-date
Tudor, Martina, and Piet Termonia. 2010. “Alternative Formulations for Incorporating Lateral Boundary Data into Limited Area Models.” Monthly Weather Review 138 (7): 2967–2882.
Chicago author-date (all authors)
Tudor, Martina, and Piet Termonia. 2010. “Alternative Formulations for Incorporating Lateral Boundary Data into Limited Area Models.” Monthly Weather Review 138 (7): 2967–2882.
Vancouver
1.
Tudor M, Termonia P. Alternative formulations for incorporating lateral boundary data into limited area models. MONTHLY WEATHER REVIEW. 2010;138(7):2967–2882.
IEEE
[1]
M. Tudor and P. Termonia, “Alternative formulations for incorporating lateral boundary data into limited area models,” MONTHLY WEATHER REVIEW, vol. 138, no. 7, pp. 2967–2882, 2010.
@article{6855645,
  abstract     = {Limited-area models (LAMs) use higher resolutions and more advanced parameterizations of physical processes than global numerical weather prediction models, but suffer from one additional source of error-the lateral boundary condition (LBC). The large-scale model passes the information on its fields to the LAM only over the narrow coupling zone at discrete times separated by a coupling interval of several hours. The LBC temporal resolution can be lower than the time necessary for a particular meteorological feature to cross the boundary. A LAM user who depends on LBC data acquired from an independent prior analysis or parent model run can find that usual schemes for temporal interpolation of large-scale data provide LBC data of inadequate quality. The problem of a quickly moving depression that is not recognized by the operationally used gridpoint coupling scheme is examined using a simple one-dimensional model. A spectral method for nesting a LAM in a larger-scale model is implemented and tested. Results for a traditional flow-relaxation scheme combined with temporal interpolation in spectral space are also presented.},
  author       = {Tudor, Martina and Termonia, Piet},
  issn         = {0027-0644},
  journal      = {MONTHLY WEATHER REVIEW},
  keywords     = {SEMI-LAGRANGIAN SCHEMES,SHALLOW-WATER EQUATIONS,REGIONAL SPECTRAL MODEL,DOMAIN SIZE,DYNAMICS,SENSITIVITY,PREDICTION,ACCURACY,ERROR},
  language     = {eng},
  number       = {7},
  pages        = {2967--2882},
  title        = {Alternative formulations for incorporating lateral boundary data into limited area models},
  url          = {http://dx.doi.org/10.1175/2010MWR3179.1},
  volume       = {138},
  year         = {2010},
}

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