@@ -119,7 +119,7 @@ One deep glider and one coastal glider were deployed in the same area with the i
The 25 drifters were released close to the frontal area with the objective to detect convergence and divergence zones. Their release locations were separated by a few kilometers.
\subsection{Data Reuse}
\subsection{Data reuse}
Three main types of data reuse are foreseen: 1.~model validation, 2.~data assimilation (DA) and 3.~planning of similar in situ experiments.
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@@ -336,7 +336,7 @@ In addition, the method developed by \citet{RIO12} is used to improve the accura
\subsection{Profiling floats}
Three profiling floats were deployed in the same zone as the drifters, on May 25 (see Tab.~\ref{tab:argofloats}). Their configuration depends on the float type: the Arvor-C has higher temporal resolution (hours) and does not go much deeper than 400~m. The A3 and Provor-bio platforms are usually set to have cycle length between 1 and 5 days, with the bio reaching maximal depth on the order of 1000~m. The floats constitute an essential tool in order to monitor the mesoscale \citep{SANCHEZROMAN17}. The trajectories (Fig.~\ref{fig8:argofloats}) clearly show that profiles were acquired in the frontal area, before the floats were eventually captured by the Algerian Current.
Three profiling floats were deployed in the same zone as the drifters, on May 25 (see Tab.~\ref{tab:argofloats}ats}). Their configuration depends on the float type: the Arvor-C has higher temporal resolution (hours) and does not go much deeper than 400~m. The A3 and Provor-bio platforms are usually set to have cycle length between 1 and 5 days, with the bio reaching maximal depth on the order of 1000~m. The floats constitute an essential tool in order to monitor the mesoscale \citep{SANCHEZROMAN17}. The trajectories (Fig.~\ref{fig8:argofloats}) clearly show that profiles were acquired in the frontal area, before the floats were eventually captured by the Algerian Current.
The Arvor-C trajectory closely follows the front position until a latitude of 36$^{\circ}$30'N, accounting for 455 profiles in the vicinity of the front. This is probably due to its configuration: its high frequency temporal sampling makes it possible to spend more time in the near-surface layer and hence the float follows the front better than the 2 other float types. Its last profile was taken on June 14, 2014, at an approximative location of 36$^{\circ}$15'N, 4$^{\circ}E$, then it drifted at the surface.
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@@ -348,7 +348,7 @@ The Arvor-C trajectory closely follows the front position until a latitude of 36
\subsubsection{Configuration}
The 3 floats provided temperature and salinity profiles thanks to the Sea-Bird CTD. In addition to these variables, the PROVBIO (PROVOR CTS4) platform measured biochemical and optical properties: colored dissolved organic matter (CDOM), chlorophyll-a concentration, backscattering (650~nm), dissolved oxygen concentration and downwelling irradiance (380, 410, 490~nm) and photosynthetically active radiation (PAR). Table \ref{tab:argofloats} reports the main deployment characteristics. All the floats are manufactured by NKE (Hennebont, France).
The 3 floats provided temperature and salinity profiles thanks to the Sea-Bird CTD. In addition to these variables, the PROVBIO (PROVOR CTS4) platform measured biochemical and optical properties: colored dissolved organic matter (CDOM), chlorophyll-a concentration, backscattering (650~nm), dissolved oxygen concentration and downwelling irradiance (380, 410, 490~nm) and photosynthetically active radiation (PAR). Table \ref{tab:argofloats} reports the main deployment characteristics. All the floats are manufactured by NKE (Hennebont, France).
The profiles were performed around local noon time and were used in combination with the glider measurements to study the deep chlorophyll maximum (DCM) across the front \citep{OLITA17}.
\begin{table*}[htpb]
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@@ -371,11 +371,12 @@ The Vessel Mounted-Acoustic Doppler Current Meter Profiler (VM-ADCP) acquired ve
The velocities exhibit a dominant eastward current with speed locally larger than 1~m/s and that signal is clearly visible in the first 100~m of the water column. The velocity field is illustrated in Fig.~\ref{fig9a:adcp} where each velocity vector is shown as a bar with a color depending on the intensity. The vertical structure is also displayed along with the front position.
\subsubsection{Configuration}
The current profiler is an Ocean Surveyor ADCP, manufactured by Teledyne RD Instruments and operating at a frequency of 150~KH. This instrument was configured with 8-m depth bins and a total of 50 bins. Final velocity profiles were averaged in 10-minute intervals. The transducer depth is approximatively 2~m.
The position and behavior (heading, pitch and roll) of the research vessel is obtained with an Ashtec 3D GPS 800 ADU positioning system that provides provide geographical positions with a 10-20 cm accuracy and heading, pitch and roll with an accuracy on the order of 1$^{\circ}$. The technical report referring to this platform is available in the Annex~II of \cite{RUIZ2015}.
The position and behavior (heading, pitch and roll) of the research vessel is obtained with an Ashtec 3D GPS 800 ADU positioning system that provides provide geographical positions with a 10-20 cm accuracy and heading, pitch and roll with an accuracy on the order of 1$^{\circ}$. The instrument was calibrated to correct the misalignment angle and scaling factor. The technical report referring to this platform is available in the Annex~II of \cite{RUIZ2015}.
\subsubsection{Quality checks}
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@@ -416,7 +417,7 @@ The AlborEx mission generated a large amount of data in a region sparsely sample
The original data files (i.e. obtained directly from the sensors and with a format depending on the manufacturer) are converted to Network Common Data Form (netCDF, \doi{http://doi.org/10.5065/D6H70CW6}, last accessed on August 3, 2018), an Open Geospatial Consortium (OGC) standard widely adopted in atmospheric and oceanic sciences. Each file contains the measurements acquired by the sensors as well the metadata (mission name, principal investigator, \ldots). The structure of the files follows the Climate and Forecast (CF) conventions \citep{DOMENICO13} and are based on the model of OceanSITES \citep{SEND2010}.
\subsection{File naming}
In order to keep the file names consistent with the original database, it is decided to keep the same file names as those assigned by SOCIB Data Center. Let us decompose one file name into its different parts:
In order to keep the file names consistent with the original database, it is decided to keep the same file names as those assigned by SOCIB Data Center. Let us decompose one file name into its different parts:\\
\item[\tt dep0007] indicates the number of the deployment, where deployment is the equivalent to the start of a mission or survey with a given platform. The deployment ends when the mission is over or if the platform stops acquiring data.
