Imperial College London
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DrAdrianCallaghan

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Lecturer (Royal Society Shooter International Fellow)
 
 
 
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Contact

 

+44 (0)20 7594 6644a.callaghan Website

 
 
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Assistant

 

Miss Rebecca Naessens +44 (0)20 7594 5990

 
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Location

 

Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Walesby:2015:10.1002/2015gl063506,
author = {Walesby, K and Vialard, J and Minnett, PJ and Callaghan, AH and Ward, B},
doi = {10.1002/2015gl063506},
journal = {Geophysical Research Letters},
pages = {3963--3972},
title = {Observations indicative of raininduced double diffusion in the ocean surface boundary layer},
url = {http://dx.doi.org/10.1002/2015gl063506},
volume = {42},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:title>Abstract</jats:title><jats:p>Double diffusion can result in the formation of thermohaline staircases, typically observed in the ocean interior. The observations presented here were acquired in the ocean surface boundary layer with the autonomous microstructure AirSea Interaction Profiler. An intense rain event (rainfall rates of up to 35 mm/h) resulted in cooler, fresher water (up to 0.15 practical salinity unit (psu) over the upper 7–10 m) overlaying warmer, saltier water, a situation potentially conducive to doublediffusive mixing. Although not as crisp as interfaces in the interior ocean because of elevated background mixing, a total of 303 thermohaline interfaces were detected within and at the base of the fresh layer, with mean changes in temperature (<jats:italic>T</jats:italic>) and salinity (<jats:italic>S</jats:italic>) across interfaces of 20 × 10<jats:sup>−3</jats:sup>C and 22 × 10<jats:sup>−3</jats:sup> psu, respectively. These results call for new studies to disambiguate whether such interfaces are formed through doublediffusive mixing or shear instabilities and understand any longterm impacts on nearsurface stratification.</jats:p>
AU  - Walesby,K
AU  - Vialard,J
AU  - Minnett,PJ
AU  - Callaghan,AH
AU  - Ward,B
DO  - 10.1002/2015gl063506
EP  - 3972
PY  - 2015///
SN  - 0094-8276
SP  - 3963
TI  - Observations indicative of raininduced double diffusion in the ocean surface boundary layer
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1002/2015gl063506
VL  - 42
ER  -
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