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Relationship between latent heat of sea spray and uncertainty of a meteorological field

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Title: Relationship between latent heat of sea spray and uncertainty of a meteorological field
Authors: Saruwatari, Ayumi Browse this author
Abe, Nobuhiro Browse this author
Keywords: Air–sea heat transfer
Coastal meteorology
Sea spray
Weather Research and Forecasting model
Issue Date: Jan-2014
Journal Title: Applied Ocean Research
Volume: 44
Start Page: 102
End Page: 111
Publisher DOI: 10.1016/j.apor.2013.11.007
Abstract: A surf zone with large breaking waves produces more spray than do offshore regions. Latent heat of spray evaporation causes change in the surrounding temperature and wind velocity, resulting in further alterations in temperature, wind velocity and heat flux. Spray in a surf zone with large breaking waves may have unignorable effect on determination of a local meteorological field because of this interconnected relationship as well as its higher population than in the open ocean. In this study, the effects of the spray latent heat on a meteorological field were investigated. The authors propose a method for estimating latent heat of spray vaporization over the ocean. The method was applied to a meso-scale meteorological model to perform numerical experiments with consideration of heat flux by spray. Although the contribution of heat flux on the ocean was as small as 2.5%, fluctuations of air temperature and wind velocity increased over time due to the effects of spray. The fluctuations are thought to cause uncertainty in weather prediction. Numerical experiments with spray provided predictions of air temperature and wind velocity near a coast line that were consistent with observational data, especially when the population of spray droplets increased by two orders of magnitude as is often observed in a coastal area.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 猿渡 亜由未

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