| Summary: | Long time series is a necessity for studying variability and climate change, shelf contained CTD systems were developed in the early 80’s and previously inverted bottles with thermometers, as well as batitermograph and XBT were used and data were hand-recorded. Santander Standard Section, in Southern Bay of Biscay, has been sampled from 1990 covering the shelf, shelf break and deep water, but some information was previously collected in the area. In 1928 Spain was integrated in the ICES and the Spanish Institute of Oceanography (IEO) accepted a mandate for weekly hydrographic sampling and cruises with hydrographic sections in the Western Iberia and Bay of Biscay. Spanish navy boats were used for the sampling and data was sent to the ICES Committees. Knowing that, we have proposed to located those data and all the oceanographic information close to Santander available to enhance the time series. Data from thermometers, batitermograph plates (200 m scale) and XBT (200 and 460m) plots have been quality checked, as much as possible, to be included in the time series. Some Salinity determinations will be presented. The Book of the Santander Laboratory contains 213 temperature profiles of 25, 40 and 100m depth stations from 1928-32, 1950-59 and 1964 and a total of 1585 temperature records. Information increases late due to technical improvement. As a preliminary result, we have detected mix layer temperatures in the older times colder than in the last 30 years. New information will permit describe the last decade 2010-2019 in a wider temporal contest.
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