Publication Abstracts

Lynn et al. 2009

Lynn, B.H., T.N. Carlson, C. Rosenzweig, R. Goldberg, L. Druyan, J. Cox, S. Gaffin, L. Parshall, and K. Civerolo, 2009: A modification to the NOAH LSM to simulate heat mitigation strategies in the New York City metropolitan area. J. Appl. Meteorol. Climatol., 48, 199-216, doi:10.1175/2008JAMC1774.1.

A new approach to simulating the urban environment with a mesocale model has been developed to identify efficient strategies for mitigating increases in surface air temperatures associated with the urban heat island (UHI). A key step in this process is to define a "global" roughness for the cityscape and to use this roughness to diagnose 10-m temperature, moisture, and winds within an atmospheric model. This information is used to calculate local exchange coefficients for different city surface types (each with their own "local roughness" lengths); each surface's energy balances, including surface air temperatures, humidity, and wind, are then readily obtained. The model was run for several summer days in 2001 for the New York City five-county area. The most effective strategy to reduce the surface radiometric and 2-m surface air temperatures was to increase the albedo of the city (impervious) surfaces. However, this caused increased thermal stress at street level, especially noontime thermal stress. As an alternative, the planting of trees reduced the UHI's adverse effects of high temperatures and also reduced noontime thermal stress on city residents (and would also have reduced cooling energy requirements of small structures). Taking these results together, the analysis suggests that the best mitigation strategy is planting trees at street level and increasing the reflectivity of roofs.

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BibTeX Citation

@article{ly04100j,
  author={Lynn, B. H. and Carlson, T. N. and Rosenzweig, C. and Goldberg, R. and Druyan, L. and Cox, J. and Gaffin, S. and Parshall, L. and Civerolo, K.},
  title={A modification to the NOAH LSM to simulate heat mitigation strategies in the New York City metropolitan area},
  year={2009},
  journal={J. Appl. Meteorol. Climatol.},
  volume={48},
  pages={199--216},
  doi={10.1175/2008JAMC1774.1},
}

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RIS Citation

TY  - JOUR
ID  - ly04100j
AU  - Lynn, B. H.
AU  - Carlson, T. N.
AU  - Rosenzweig, C.
AU  - Goldberg, R.
AU  - Druyan, L.
AU  - Cox, J.
AU  - Gaffin, S.
AU  - Parshall, L.
AU  - Civerolo, K.
PY  - 2009
TI  - A modification to the NOAH LSM to simulate heat mitigation strategies in the New York City metropolitan area
JA  - J. Appl. Meteorol. Climatol.
VL  - 48
SP  - 199
EP  - 216
DO  - 10.1175/2008JAMC1774.1
ER  -

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