The Relative Roles of the Ocean and Atmosphere as Revealed by Buoy Air-Sea Observations in Hurricanes
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.


This Document Has Been Replaced By:



This Document Has Been Retired


Up-to-date Information

This is the latest update:

The Relative Roles of the Ocean and Atmosphere as Revealed by Buoy Air-Sea Observations in Hurricanes
  • Published Date:


  • Source:
    Monthly Weather Review, 143(3), 904-913.
Filetype[PDF-1.21 MB]

  • Personal Author:
  • Description:
    Results from this multihurricane study suggest that the criticality of the oft-cited 26 degrees C hurricane threshold linked to hurricane maintenance may be more closely associated with atmospheric thermodynamic conditions within the inner core than previously believed. In all cases, a positive sea-air contrast was observed within the storm inner core (i.e., surface ocean temperature greater than surface air temperature), despite the fact that 6% of the hurricanes exhibited sea surface temperatures (SSTs) less than the 26 degrees C. For the storms sampled in this study, inner-core surface dewpoint temperatures never exceeded 26.5 degrees C. This finding may provide an alternate explanation as to the criticality of the 26 degrees C threshold since SSTs above 26 degrees C would, in almost all instances, be associated with a positive enthalpy flux condition. Analyses from this study also illustrate that high wind SSTs fluctuate as a function of storm latitude, while inner-core near-surface dewpoint temperatures are much less sensitive to this parameter. As a result, and assuming all other factors to be equal, low-latitude hurricanes would, on average, be expected to experience surface moisture fluxes similar to 1/3 greater than storms located farther to the north. For systems sampled within the deep tropics, inner-core SST was found to fluctuate much less than surface dewpoint temperature, suggesting that the atmosphere, not the ocean, is more likely to influence the key thermodynamic parameter controlling surface moisture flux for this subset of hurricanes.
  • Document Type:
  • Main Document Checksum:
  • File Type:
  • Supporting Files:
    No Additional Files
No Related Documents.

You May Also Like: