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Float no.6900708

    Temperature and salinity profiles   Time series plots
  Download the data   Using the float data with ocean analysis maps   Comparisons  

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This ARVOR float was launched by French scientists west of Portugal at 39°N, 12.8°W on 17 May 2009. It has recorded a total of 187 profiles, and made its last report on 12 June 2014 from 34.9°N,  14.5°W.

Float track

Float track for float 6900157.

The ARVOR float was launched by Christine Coatanoan from ARVOR. Arvor floats are lighter and smaller than their Provor predecessor and easier to manipulate.

The temperature and salinity profiles of this float are typical of the region west of Spain, which is influenced by water from the Mediterranean flowing out through the Strait of Gibraltar. This Mediterranean Outflow water can be seen clearly in the profiles.

Temperature and salinity profiles

Temperature profiles Salinity profiles

Profiles of temperature (left) and salinity (right) from Argo float 6900708. The profiles show how temperature (T) and salinity (S) change with depth from the surface to 2000m. Early profiles are dark blue, the latest profiles are deep red or brown. Click on the images for larger plots.     Source of plots: IFREMER/Coriolis.

Q1.
 
 

Look at the profiles above. At what depth range do you find water from the Mediterranean?
In which of the two figures can you see the Mediterranean influence most clearly?

Argo float
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A1.

Temperature profiles
Annotated T-profiles
  Salinity profiles
Annotated S-profiles

The influence of Mediterranean water is found between at about 600m and 1600m depth. In the temperature profiles it is recognised by a slightly higher temperature than the water above and below. The influence is even more marked in the salinity profiles; the Mediterranean Outflow water has a much higher salinity than the surrounding water.

CLOSE

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Time series of temperature and salinity

Temperature section Salinity section

Time series of temperature (left) and salinity (right) from Argo float 6900708. The sections show all the temperature (T) and salinity (S) profiles measured by the float during its life-time side by side. Each profile is represented by a very thin column where deep red is the highest values and deep blue the lowest. The colour bars on the right relate the colours to actual data values. Profile numbers are given along the top of the plot, with corresponding measurement dates along the bottom. Click on the images for larger plots.     Source of plots: IFREMER/Coriolis.

Using the float trajectories with ocean analysis maps

Look at the float trajectory in Google Earth to see where the float has been. (If in doubt about how to reveal the float tracks, see our Google Earth screenshot for help.) Compare this to the maps of temperature and salinity for different depths available for example from Mercator ocean analyses.

Downloading the float data

The Argo Information Centre has more information about this float. You can also download the data from one of the Data Centres - just select Data > Data Downloads.

There are many different formats available. ASCII data can be viewed in spreadsheets such as Excel. The other data types may require more specialist software.

Comparisons

This float may be compared with 6900211. Look out for similarities, but bear in mind there may also be small, but important differences.

 

Link to the main Euro-Argo project website.