Sea breeze prediction

Large image of NYC sea breeze prediction

2-m air temperature and 10-m wind velocity in the afternoon of a sea breeze event on April 18, 2005.  The land-sea temperature contrast drives the onshore sea breeze.  Local spatial variations in sea surface temperature (SST) can leave a signature on the sea breeze, especially when complex coastlines create multiple sea breeze fronts (e.g., the sea breeze penetrating from Long Island Sound in the image above).

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In our multiply-nested COAMPS simulations, nest 4 (1.33 km resolution) and nest 5 (0.44 km resolution) were enhanced to account for urban effects and to include time-varying (hourly) high-resolution SST's from the New York Harbor Observing and Prediction system (NYHOPS).  The diurnal heating of the ocean surface is thus represented in our simulations. Our research involves quantifying the impact of these effects on the circulation, and evaluating the forecast skill of the system. We have also applied two different urban canopy schemes and evaluated their performance.

Pullen, J. T. Holt, A. F. Blumberg and R. D. Bornstein, “Atmospheric response to local upwelling in the vicinity of New York/ New Jersey Harbor,” Journal of Applied Meteorology and Climatology, 46, 1031-1052, 2007 (pdf).

Holt, T. and J. Pullen, “Urban canopy modeling of the New York City metropolitan area: A comparison and validation of single-layer and multi-layer parameterizations,” Monthly Weather Review, 135, 1906-1930, 2007 (pdf).

Thompson, W. Holt, T. and J. Pullen, “Investigation of a sea breeze front in an urban environment,” Quarterly Review of the Royal Meteorological Society, 133, 579-594, 2007 (pdf).