Hydrological data have been collected during 9 oceanographic cruises, named medgoos, organized in the whole Mediterranean basin between November 2002 and October 2006 (table 1) by the Italian National Research Council (CNR). The three medgoos cruises numbered from 5 to 7 are already part of another database (Ribotti et al., 2019) just covering the Sardinia Channel and Sea. Here they are complete.

Like in the previous medgoos cruises (Ribotti et al., 2019), also for these the 61,30 meters long R/V Urania of CNR was used. Data of conductivity, temperature, dissolved oxygen (DO) and Chlorophyll-a fluorescence (Chl-a, apart during the medgoos11 cruise) were acquired by sensors installed on a SBE911 plus CTD probe (Sea-Bird Inc.). It was equipped with a 24 Niskin bottle rosette for water column samples collection. The vertical profiles of all parameters were obtained by sampling the signals at 24 Hz, with the CTD/rosette going down at a speed of 1 m/s. On board the CTD data were quality checked and processed by Seasoft software, and the coarse errors corrected. Then the salinity was checked against the on-board analyses of water samples by a Guildline-Autosal salinometer. The same for DO data checked against Winkler titration analyses. Chl-a data were not calibrated, so they are reported as Relative Fluorescence Unit. During cruises from medgoos5 to 7 acquired temperature data were checked at defined depths against inverted thermometers installed in correspondence of the Niskin bottles number 1, 3, 5, 7 of the rosette sampler. Pre-cruise and post-cruise calibrations of the sensors were performed at the SACLANT Center (now NATO-CMRE) of La Spezia (Italy). Redundant sensors were often used for both temperature and salinity measurements. The vessel was positioned using an integrated navigation system consisting of two DGPS antennas managed by Andrews Hydrographics software installed on HP 386, 33 MHz PCs. The data set is provided per cruise as Ocean Data View (ODV, Schlitzer R., 2019) Spreadsheet files in TXT format where missing data values are set to -1.e10.

MetaVariable

• Cruise name
• Station
• Type of acquisition (here C)
• Date in mon/day/yr and Time in hh:mm
• Longitude [degrees_east]
• Latitude [degrees_north]
• Bot. Depth [m]

DataVariable (not always in the following order)

• Pressure, Digiquartz [db]
• Temperature [deg C]; ITS-68, also ITS-90 just in medgoos5
• Conductivity [mS/cm]
• Oxygen, SBE43 [ml/l]
• Fluorescence, Seatech in medgoos5, 6, 7, 8, 9, 10