@article {Biescas2014,
	title = {{Recovery of temperature, salinity, and potential density from ocean reflectivity}},
	journal = {Journal of Geophysical Research: Oceans},
	volume = {119},
	number = {5},
	year = {2014},
	pages = {3171{\textendash}3184},
	publisher = {Blackwell Publishing Ltd},
	abstract = {This work explores a method to recover temperature, salinity, and potential density of the ocean using acoustic reflectivity data and time and space coincident expendable bathythermographs (XBT). The acoustically derived (vertical frequency >10 Hz) and the XBT-derived (vertical frequency <10 Hz) impedances are summed in the time domain to form impedance profiles. Temperature (T) and salinity (S) are then calculated from impedance using the international thermodynamics equations of seawater (GSW TEOS-10) and an empirical T-S relation derived with neural networks; and finally potential density ($\rho$) is calculated from T and S. The main difference between this method and previous inversion works done from real multichannel seismic reflection (MCS) data recorded in the ocean, is that it inverts density and it does not consider this magnitude constant along the profile, either in vertical or lateral dimension. We successfully test this method on MCS data collected in the Gulf of Cadiz (NE Atlantic Ocean). T, S, and $\rho$ are inverted with accuracies of $δ$Tsd=0.1C, $δ$Ssd=0.09, and $δ$$\rho$sd=0.02kg/m 3. Inverted temperature anomalies reveal baroclinic thermohaline fronts with intrusions. The observations support a mix of thermohaline features created by both double-diffusive and isopycnal stirring mechanisms. Our results show that reflectivity is primarily caused by thermal gradients but acoustic reflectors are not isopycnal in all domains. Key Points Recovery of oceanic T, S, and potential density from acoustic reflectivity data Thermal anomalies observations at the Mediterranean tongue level Comparison between acoustic reflectors in the ocean and isopycnals {\textcopyright} 2014. American Geophysical Union. All Rights Reserved.},
	keywords = {low-frequency acoustic oceanography, ocean reflectivity, Seismic oceanography, thermohaline fronts, thermohaline intrusions},
	issn = {21699275},
	doi = {10.1002/2013JC009662},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84902770570\&partnerID=tZOtx3y1},
	author = {Biescas, Berta and Ruddick, Barry R. and Nedimovic, Mladen R. and Sallares, Valenti and Bornstein, Guillermo and Mojica, Jhon F.}
}
@article {Biescas2010,
	title = {{Seismic imaging of staircase layers below the Mediterranean Undercurrent}},
	journal = {Deep Sea Research Part I: Oceanographic Research Papers},
	volume = {57},
	number = {10},
	year = {2010},
	month = {oct},
	pages = {1345{\textendash}1353},
	abstract = {Seismic images of staircase layers at the bottom of the Mediterranean Undercurrent with a lateral coherence up to 50. km and a horizontal resolution of \~{}10m are presented. The images show clearly the interaction between these staircase layers and other flow structures such as meddies, seamounts and internal waves. The staircase layers were imaged during two different surveys that used different sound sources. Comparison between seismic images and historical oceanographic observations illustrates the importance of using a seismic source adapted to the vertical scale of the oceanographic target to be imaged. Wavelengths larger than the size of the staircase structure distort the image in the vertical. For optimal imaging, deconvolution of the data is required. {\textcopyright} 2010 Elsevier Ltd.},
	keywords = {Boundary mixing, Gulf of Cadiz, Meddy, Mediterranean Undercurrent, Seismic oceanography, Thermohaline staircase layers},
	issn = {09670637},
	doi = {10.1016/j.dsr.2010.07.001},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77956879722\&partnerID=tZOtx3y1},
	author = {Biescas, Berta and Armi, Larry and Sallares, Valenti and Gr{\'a}cia, Eul{\`a}lia}
}
