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SMOS Pilot-Mission Exploitation Platform

Pi-MEP Regions

The Pi-MEP considers as 'validation regions' a modified version of the ocean boundaries given in 'The Limits of Oceans and Seas' [IHO Special Publication 23, 1953]. It includes the global ocean, the arctic ocean, the Atlantic ocean (North, South and tropical), the Pacific ocean (North, South and tropical), the Indian Ocean, the South China Sea, the Southern Ocean, the Mediterranean sea, the Bay of Bengal, the Sea of Japan, the Baltic Sea and the Gulf of Mexico.

The Pi-MEP also considers:

  • SPURS-1 and SPURS 2 regions which correspond to the locations where 2 international in situ field campaign took place in 2012-2013 and 2016-2017, respectively, with huge availability of in situ salinity measurements.
  • The OTT zone corresponding to an area in the South Pacific (far from coast) where a combination of SMOS images and model are used to derived the so-called Ocean Target Transformation (OTT), an important part of the SMOS calibration procedure.
  • The SMOS coastal zone (<800km) which corresponds to "coastal" (<800km) areas where it is known to be very challenging to retrieve SSS due to Land-Sea contamination.
  • Regions corresponding to the different case studies.

NetCDF files with the mask of each region are provided.

Match-up databases are analyzed globally but also for each Pi-MEP validation region. A dedicated Match-up report is provided for each triplet: Pi-MEP Region-Satellite SSS product-In situ SSS product.

These regions are defined in the following table:

Pi-MEP Region# Short Name Name Lon/Lat Range Map Mask
1 GO Global Ocean [-180 180] /
[-78 90]
The region mask shown on a map netcdf
2 MLL-45 Mid-Low Latitudes 45N-45S [-180 180] /
[-45 45]
The region mask shown on a map netcdf
3 EO-10 Equatorial Ocean 10N-10S [-180 180] /
[-10 10]
The region mask shown on a map netcdf
4 AO Atlantic Ocean [-98 20] /
[-50 66]
The region mask shown on a map netcdf
5 NAO North Atlantic Ocean [-98 12] /
[0 66]
The region mask shown on a map netcdf
6 SAO South Atlantic Ocean [-68 20] /
[-20 0]
The region mask shown on a map netcdf
7 TAO Tropical Atlantic Ocean [-98 14] /
[-23 23]
The region mask shown on a map netcdf
8 PO Pacific Ocean [-180 180] /
[-50 66]
The region mask shown on a map netcdf
9 NPO North Pacific Ocean [-180 180] /
[0 66]
The region mask shown on a map netcdf
10 SPO South Pacific Ocean [-180 180] /
[-50 0]
The region mask shown on a map netcdf
11 TPO Tropical Pacific Ocean [-180 180] /
[-23 23]
The region mask shown on a map netcdf
12 IO Indian Ocean [20 147] /
[-50 27]
The region mask shown on a map netcdf
13 BoB Bay of Bengal [79 98] /
[9 22]
The region mask shown on a map netcdf
14 SCS South China Sea [102 122] /
[-3 25]
The region mask shown on a map netcdf
15 SoJ Sea of Japan [128 142] /
[34 53]
The region mask shown on a map netcdf
16 SO Southern Ocean [-180 180] /
[-78 -50]
The region mask shown on a map netcdf
17 ARCO Arctic Ocean [-180 180] /
[61 90]
The region mask shown on a map netcdf
18 BS Baltic Sea [10 29] /
[54 66]
The region mask shown on a map netcdf
19 MS Mediterranean Sea [-5 36] /
[30 46]
The region mask shown on a map netcdf
20 SPURS1 SPURS 1 [-45 -30] /
[15 30]
The region mask shown on a map netcdf
21 SPURS2 SPURS 2 [-130 -120] /
[5 15]
The region mask shown on a map netcdf
22 SMOS-C-800-60 SMOS coastal zone (<800km) 60N-60S [-180 180] /
[-60 60]
The region mask shown on a map netcdf
23 OTT OTT zone [-140 -95] /
[-45 -5]
The region mask shown on a map netcdf
24 GoM Gulf of Mexico [-98 -81] /
[18 30]
The region mask shown on a map netcdf
Case Studies
25 AORP Amazon & Orinoco river plumes [-78 -25] /
[-5 30]
The region mask shown on a map netcdf
26 CRP Congo river plume [0 13] /
[-10 0]
The region mask shown on a map netcdf
27 MRP Mississippi river plume [-98 -81] /
[24 31]
The region mask shown on a map netcdf
28 GBRP Ganga & Brahmaputra river plumes [75 100] /
[5 22]
The region mask shown on a map netcdf
29 RFFF Roaring forties/Furious Fifties [-180 180] /
[-60 -40]
The region mask shown on a map netcdf
30 GS Gulf Stream [-80 -40] /
[30 50]
The region mask shown on a map netcdf