- Name, address, telephone and fax numbers of responsible data submitter organizations
	Centro para el Estudio de Sistemas Marinos (CESIMAR) - CCT CONICET - CENPAT 
	Blvd. Brown 2915, U9120ACF Puerto Madryn, Chubut, Argentina
	Phone: (++54) (280)4883184, Fax: (++54) (280) 4883543
- Name of principal investigator(s) with telephone, e-mail addresses, and fax numbers
	Andr?s Luj?n Rivas 
	Phone: (++54) (280)4883184 (ext. 1241)
	Email: andres@cenpat-conicet.gob.ar
	(++54)(280) 4883543 
- Program, project, expedition name
	PROMESse (Multidisciplinary program for the study of the ecosystem and marine geology of San Jorge Gulf and the coast of the Province of Chubut),
	MARES (Marine Ecosystem Health of the San Jorge Gulf: Present status and Resilience capacity),
	Coriolis II
- Funding agency, grant/contract numbers, date
	Institut des sciences de la mer de Rimouski/Universit? du Qu?bec ? Rimouski (ISMER/UQAR) from Canada, 
	Consejo Nacional de Investigaciones Cient?ficas y T?cnicas (CONICET) from Argentina, 
	Ministerio de Ciencia y Tecnolog?a (MINCyT) from Argentina,
	Provincia de Chubut from Argentina.
- Data collectors' identifying numbers, e.g., cruise and leg numbers, cast numbers
	R/V Coriolis II leg 2. 23 CTD vertical profiles	
- Ship or other platform type, name/call sign
	R/V Coriolis II
- Dates (GMT) of data collection (begin-end)
	2014-02-4 to 2014-02-10.
- Geographic location-latitude(s)/longitude(s)
	N: -44.5 S: -48.5 E: -64 W: -68
- Objectives of data collection effort
	The main goal of MARES was to conduct a comprehensive study of the dynamics of physical, chemical and biological parameters vital for the ecosystem of the Gulf. The observational component of this project consisted in a multidisciplinary oceanographic cruise on board research vessel Coriolis II in February 2014. It was operationally integrated by three legs designed to identify and characterize areas of high primary productivity and sensitivity (hot spots), which will serve as indicators of the ecosystem health. This data collection was carried out during the second leg of Coriolis II cruise.
- Data parameter(s)
	Type: Physical (temperature, salinity, currents, pressure, fluorescence, turbidity, altimeter, beam transmission, photosynthetically active radiation (PAR)) and Chemical (pH, nutrients, dissolved oxygen (DO)).  
	Units: Physical ([ITS-90 deg C], [PSU], [m/s], [db], [mg/m^3], [NTU], [m], [%], ) and Chemical ( ,[microM], [mL/L],).
        Precision: 
		SBE 911plus: 
			Temperature: ?0.001 ?C, Conductivity: ?0.0003 S/m, Pressure: ?0.015 % of full scale range.
			Ancillary sensors:
				DO: ?2 % of saturation, pH: ?0.1 pH, Fluorescence: 0.02 ?g/l, Nutrients: ?0.5 ?M, PAR: -, Beam transmission: -, Altimeter:-, pCO2: -.
		SBE 49FastCAT:
			Temperature: 0.002 ?C, Conductivity: 0.0003 S/m, Pressure: 0.1 % of full scale range. Fluorescence: 0.025 ?g/l, Turbidity: 0.01 NTU.
		SBE 19plus:
			Temperature: ?0.005 ?C, Conductivity: ?0.0005 S/m, Pressure: ?0.1 % of full scale range (Strain-gauge sensor). Fluorescence: 0.033 V/ ?g/l.
		ADCP:
			High Precision Mode: 15 cm/s.
	Observation methodology: CTD vertical profiles; underway measurements; towed undulating vehicle; acoustic Doppler current profiler (ADCP). 
		Instrument/gear identification or description : CTD vertical profiles were collected with a Sea-Bird Electronic (SBE) model 911plus, equipped with oxygen (SBE43), pH (SBE18), fluorescence (WET Labs ECO-AFL/FL), nutrients (ISUS-V3), photosynthetically active radiation (LI-COR Biospherical PAR), beam transmission (WET Labs C-Star) and altimeter (Benthos PSA-916) sensors. 
		Underway temperature, salinity and fluorescence measurements were collected using SBE model 19plus equipped with a SeaPoint fluorometer. 
		High-resolution hydrographic data acquisition was carried out using a towed undulating vehicle EIVA Marine Survey Solutions model Scanfish II, fitted with a modular CTD SBE model 49FastCAT and a combined fluorometer and turbidity sensor WetLabs model ECO FLNTU. 
		Velocity field measurements were carried out using a hull-mounted Teledyne RD Instruments ADCP in the nominal frequency of 150 kHz.   
	Analysis methodology: At pre-defined depths water samples were taken employing a Carousel SBE32 rosette package with 12 Niskin bottles of 12 L each, for the determination of salinity, DO, nutrients, pH and chlorophyll-a (Chl) concentrations in the water column. They were used to calibrate oxygen, pH and fluorescence ancillary sensors. SBE9plus sensors were factory calibrated in late 2013. 
		SBE49FastCAT sensors were factory calibrated in 2015. Pre- and post-cruise laboratory calibrations allowed to determinate sensor drift corrections (SBE,2010). 
		Underway temperature, conductivity and fluorescence measurements were compared with corrected SBE9plus data extracted from the 2 dbar level during down and up casts for each station. A linear least squares fit was made to determinate an offset and slope corrections to the nominal calibration.
		Data processing/reduction methodology: ADCP data were processed using CODAS (Common Oceanographic Data Access System), software system V.3.1 developed at the University of Hawaii (Firing, 1995). CTD data were processed using SBE Data Processing software routines (v. 7.23.2, Seasoft-Win32,http://www.seabird.com/software/software) according to each instrument.
	Explanations of data quality flags:
		SBE 9plus: 
			Temperature, salinity and pressure. Acceptable measurement.  	
			Ancillary sensors: 
				Dissolved oxygen: Calibrated. Acceptable measurement. 
				pH: Calibrated. Acceptable measurement.
				Fluorescence: Calibrated. Acceptable measurement.
				Nutrients: Not Calibrated. Data are reported based on factory calibrations. Questionable measurement 
				Photosynthetically active radiation (PAR): Not Calibrated. Data are reported based on factory calibration.
				Beam transmission: Not Calibrated. Data are reported based on factory calibration.
				Altimeter: Not Calibrated. Data are reported based on factory calibration.
				
		SBE 19plus:
			Temperature, salinity and fluorescence: Calibrated. Acceptable measurement.
		SBE 49FastCAT:
			Temperature and salinity: Calibrated. Aceptable measurement.
			Fluorescence: Not Calibrated. Data are reported based on factory calibration.
			Turbidity: Not Calibrated. Data are reported based on factory calibration.
		ADCP: 
			Calibrated. Acceptable measurement. 
- Citations of relevant publications and grey literature
		Carbajal, J.C., A.L. Rivas, and C. Chavanne. 2018. High-frequency frontal displacements south of San Jorge Gulf during a tidal cycle near spring and neap phases: Biological implications between tidal states. Oceanography 31(4):60?69, https://doi.org/10.5670/oceanog.2018.411.