Artificial ocean cooling to weaken hurricanes is futile, study finds NaturePortfolio NaturePortfolio
MPI and OPI are based on the assumption that the ocean conditions are uniform across an infinite horizontal expanse. In reality, TCs traverse multiple different ocean regimes characterized by varying vertical density profiles and upper-ocean currents. Additionally, our computations presented in Fig. assume an instantaneous introduction of the pre-cooled TC to an artificially cooled region, as opposed to a more realistic gradual exposure of the TC to a cold patch.
Simulations were performed using the Weather, Research, and Forecasting model version 4.2.1. The control simulation - NC, i.e., no cooling - made landfall eight days after initialization. This TC translated at ~4 m sdue westward. First, three simulations were performed using different sized patches of cooled and deepened mixed layers of varying horizontal widths extending from the coastline.
Fig. 3: Simulation domain set-up featuring example schematic of equivalent cool patch sizes for perspective.Size of the TC wind field at the time of initialization of the sensitivity experiments in relation to each domain, the land mass, the total eight-day track, and each of the three artificially cooled patches. For reference,
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