Pi-MEP Logo

Salinity Pilot-Mission Exploitation Platform

Pi-MEP data source

The Pi-MEP downloads, regularly updates, archives and processes an ensemble of required input datasets that are used by the platform to perform satellite SSS remote sensing analyses. There are several types of data:

  • Satellite SSS Core datasets (L2/L3/L4)
  • In situ Core datasets
  • Auxiliary geophysical datasets
  • Numerical Weather Prediction (NWP) and Numerical Ocean Prediction (NOP) datasets
  • Process study dedicated datasets

These datasets are described in detail in the tables here below:

Pi-MEP CORE SATELLITE DATASETS
Dataset Name Level Spatial resolution Temporal coverage Variables Version Provider
Temporal resolution Update frequency
SMOS SSS L2 v700 (ESA) L2 30-80 km From 2010-06-01 to present SSS1 v700 ESA
50-minute half-orbit (granule duration) Daily
SMAP SSS L2 v6 (RSS) L2 ~70 km (grid 0.25°x0.25°) From 2015-03-27 to present sss_smap v6 RSS
98-minute orbit (granule duration) Daily
SMAP SSS L2 v5.0 (JPL) L2 ~60 km (25 km swath grid) From 2015-03-27 to present smap_sss v5.0 JPL
98-minute orbit (granule duration) Daily
Aquarius SSS L2 OR v5 (NASA-GSFC) L2 96 km x 390 km From 2011-08-25 to 2015-06-07 smap_sss v5 NASA Aquarius project
98-minute orbit (granule duration) End of mission data
Aquarius SSS L2 CAP v5 (JPL) L2 96 km x 390 km From 2011-08-25 to 2015-06-04 sss_cap v5 JPL
98-minute orbit (granule duration) End of mission data
SMOS SSS L3 v333 - L2Q (CATDS-CPDC) L3 ~50 km (grid 25km x 25km) From 2010-01-01 to 2024-05-31 (RE08)
From 2024-06-01 to present (OPER)
Mean_Sea_Surface_Salinity v333 CATDS CPDC
Daily (both ascending and descending orbits) Daily
SMOS SSS L3 v335 - 10 Days (CATDS-CPDC) L3 ~50 km (grid 25km x 25km) From 2010-01-01 to 2021-05-24 (RE07)
From 2021-05-25 to present (OPER)
Mean_Sea_Surface_Salinity v335 CATDS CPDC
10 days (both ascending and descending orbits) 10 days
SMOS SSS L3 v335 - Monthly (CATDS-CPDC) L3 ~50 km (grid 25km x 25km) From 2010-01-01 to 2021-05-24 (RE07)
From 2021-05-25 to present (OPER)
Mean_Sea_Surface_Salinity v335 CATDS CPDC
Monthly 10 days
SMOS SSS L3 v332 - 9 Days (CATDS-CPDC) L3 ~50 km (grid 25km x 25km) From 2010-01-01 to 2021-05-24 (RE07)
From 2021-05-25 to present (OPER)
Mean_Sea_Surface_Salinity v332 CATDS CPDC
9 days Daily
SMOS SSS L3 v9 - 9 Days (CATDS-CEC-LOCEAN) L3 ~50 km (grid 25km x 25km) From 2010-01-16 to 2023-12-31 SSS v9 CATDS CEC LOCEAN
9 days (every 4 days) Yearly
SMOS SSS L3 v9 - 18 Days (CATDS-CEC-LOCEAN) L3 ~50 km (grid 25km x 25km) From 2010-01-16 to 2023-12-31 SSS v9 CATDS CEC LOCEAN
18 days (every 4 days) Yearly
SMOS SSS L3 v2 - 9 Days (BEC) L3 0.25° From 2011-01-24 to 2019-12-31 hr_sss
lr_sss
v2 BEC
9 days -
SMAP SSS L3 v5.0 - 8-Day running (JPL) L3 ~60 km (grid 0.25°x0.25°) From 2015-03-27 to present smap_sss v5.0 JPL
8-day running 8 days
SMAP SSS L3 v5.0 - Monthly (JPL) L3 ~60 km (grid 0.25°x0.25°) From 2015-03-27 to present smap_sss v5.0 JPL
Monthly Monthly
SMAP SSS L3 v6 - 8-Day running (RSS) L3 ~70 km (grid 0.25°x0.25°) From 2015-03-27 to present sss_smap v6 RSS
8-day running Daily
SMAP SSS L3 v6 - Monthly (RSS) L3 ~70 km (grid 0.25°x0.25°) From 2015-03-27 to present sss_smap v5.3 RSS
Monthly Monthly
Aquarius SSS L3 CAP v5 - 7-Day running (JPL) L3 From 2011-08-25 (238) to 2015-06-04 (155) sss_cap v5 JPL
7-day running End of mission data
Aquarius SSS L3 CAP v5 - Monthly (JPL) L3 From 2011-08-25 to 2015-06-04 sss_cap v5 JPL
Monthly End of mission data
Aquarius SSS L3 OR v5 - 7-Day running (NASA-GSFC) L3 From 2011-08-25 to 2015-06-07 SSS v5 NASA Aquarius project
7-day running End of mission data
Aquarius SSS L3 OR v5 - Monthly (NASA-GSFC) L3 From 2011-08-25 to 2015-06-07 SSS v5 NASA Aquarius project
Monthly End of mission data
SMOS SSS L4 OI v346 - Weekly (CMEMS-CATDS-LOPS) L4 0.25° From 2011-01-01 to 2024-06-27 sss v346 LOPS
Weekly Biannually
SMOS SSS L4 v2 - Daily (BEC) L4 0.05° From 2011-01-24 to 2021-05-31 sss v2 BEC
Daily -
SMOS SSS L4 v1 - Daily (CMEMS-CNR) L4 0.125° From 2010-01-01 to present sos v1 CMEMS
Daily Daily
SMOS SSS L4 v1 - Monthly (CMEMS-CNR) L4 0.125° From 2010-01-01 to present sos v1 CMEMS
Monthly Monthly
Aquarius SSS L4 OI v5 - Weekly (IPRC) L4 0.5° From 2011-09-01 to 2015-06-03 sss v5 IPRC
Weekly End of mission data
Aquarius SSS L4 OI v5 - Monthly (IPRC) L4 0.5° From 2011-09-01 to 2015-06-03 sss v5 IPRC
Monthly End of mission data
CCI SSS L4 Merged-OI v4.41 - 7-day running (ESA) L4 0.25° From 2010-01-06 to 2022-10-30 sss v4.41 ESA
7-day running Yearly
CCI SSS L4 Merged-OI v4.41 - 30-day running (ESA) L4 0.25° From 2010-01-06 to 2022-10-15 sss v4.41 ESA
30-day running Yearly
SMAP SSS L4 OI v3 - Daily (ESR) L4 0.25° From 2011-09-28 to 2023-12-12 sss v3 ESR
Daily -
SMAP SSS L4 OI v3 - Monthly (ESR) L4 0.25° From 2011-09 to 2023-11 sss v3 ESR
Monthly -
Pi-MEP CORE IN SITU DATASETS
Dataset Name Level Spatial resolution Temporal coverage Variables Version Provider
Temporal resolution Update frequency
JAMSTEC OA 1° (25 presure levels=10,20...) From 2010-01-01 to present SOI
SOI_ERR
TOI
TOI_ERR
JAMSTEC
ArgoGroup
Monthly Monthly
METOF OI 1° (vert. 42 depth levels=5,15...) From 2010-01-01 to present salinity
temperature
EN4.2.2 Metoffice
Monthly Monthly
ISAS OA 0.5° (152 depth levels=0,3,5,10,15...) From 2010-01-01 to present PSAL
PSAL_PCTVAR
TEMP
TEMP_PCTVAR
v7 CMEMS
Monthly Monthly
ISAS13-CLIM OA 0.5° (152 depth levels=0,3,5,10,15...) From 2004-01-01 to 2014-12-31 PSAL SEANOE
Annual
Monthly
-
ARGO-IPRC VA 1° (27 presure levels=0,5,10,20...) From 2010-01-01 to present salt
temp
IPRC
Monthly Monthly
Roemmich-Gilson Argo Climatology 1° (58 depth levels) From 2010-01-01 to present ARGO_SALINITY_MEAN
ARGO_SALINITY_ANOMALY
Scripps Institution of Oceanography
Monthly Monthly
MULTIOBS_GLO_PHY_S_SURFACE_MYNRT_015_013 SSS/SSD L4 0.25° From 2010-01-01 to present sos
dos
CMEMS
Daily
Monthly
Daily
World Ocean Atlas 2009 CLIM 1° (vert. 24 depth levels=0,10,20...) s_an
t_an
NOAA
Annual
Seasonal
Monthly
-
World Ocean Atlas 2013 CLIM 1°,0.25° (vert. 102 depth levels=0,5,10,15...) s_an
t_an
v2 (A5B2, DECAV) NOAA
Annual
Seasonal
Monthly
-
World Ocean Atlas 2018 CLIM 1°,0.25° (vert. 102 depth levels=0,5,10,15...) s_an
t_an
(A5B7, DECAV) NOAA
Annual
Seasonal
Monthly
-
World Ocean Atlas 2023 CLIM 1°,0.25° (vert. 102 depth levels=0,5,10,15...) s_an
t_an
(DECAV91C0) NOAA
Annual
Seasonal
Monthly
-
ARGO profiles in situ From 2010-01-01 to present S,T profiles Coriolis GDAC
Daily
TSG (GOSUD-Research vessels) in situ From 2010-01-01 to 2022 SSPS
SSTP
SSJT
v11 GOSUD
Yearly
TSG (GOSUD-Sailing ships) in situ From 2010-01-01 to 2018 SSPS
SSTP
SSJT
v10 GOSUD
Yearly
TSG (LEGOS-DM) in situ From 2010-01-01 to present SSPS
SSTP
SSJT
v21 LEGOS
Yearly
TSG (LEGOS-Survostral) in situ From 2010-01-01 to 2024 SSPS
SSTP
SSJT
v21 LEGOS
Yearly
TSG (LEGOS-Survostral adélie) in situ From 2010-01-01 to 2012 SSPS
SSTP
SSJT
LEGOS
Yearly
TSG (SAMOS) in situ From 2010-01-01 to present SSPS
SSTP
research SAMOS
Daily
TSG (Polarstern) in situ From 2010-01-01 to 2023 Sal
Temp
PANGEA
-
TSG (NCEI-0170743) in situ From 2010-01-01 to 2018 SSS
SST
NCEI
-
Marine-Mammals in situ From 2010-01-01 to 2024-02-20 PSAL
TEMP
PRES
2024-03 released MEOP
Yearly
Moorings in situ From 2010-01-01 to present GTMBA-NOAA/PMEL
(TAO, RAMA, PIRATA)
Daily
Moorings in situ From 2010-01-01 to 2018 Delayed mode NTAS, WHOTS, STRATUS, SPURS1, SPURS2
Daily
Surface drifters in situ From 2010-01-01 to present sss
Tsal
LOCEAN
Yearly
MODEL and ASSIMILATION
Dataset Name Level Spatial resolution Temporal coverage Variables Version Provider
Temporal resolution Update frequency
HYCOM Model 1/12° From 2012-05 to 2018-11-20 salinity
water_temp
GLBu0.08 NRL
Daily Daily
GLOBAL_ANALYSIS_
FORECAST_PHY_001_024
Model 1/12° (50 depth levels) From 2010-01-01 to Present so CMEMS
Daily Daily
GLOBAL_REANALYSIS_
_PHY_001_030
Model 1/12° (50 depth levels) From 2010-01-01 to 2024-02-27 so v1 CMEMS
Daily Daily
ECCO 0.5° (50 depth levels) From 2010 to 2017 SALT v4r4 ECCO CONSORTIUM
Yearly if new version
AUXILIARY DATASETS
Dataset Name Level Spatial resolution Temporal coverage Variables Version Provider
Temporal resolution Update frequency
MLD-APDRC OI From 2010-01-01 to present mld APDRC
Monthly Daily
ISAS13-CLIM-MLD 0.5° From 2004-01-01 to 2014-12-31 ML_PSAL
ML_TEMP
SEANOE
Monthly -
ISAS13-MLD 0.5° From 2004-01-01 to 2014-12-31 ML_PSAL
ML_TEMP
LPO
Monthly -
SST AVHRR L4 0.25° From 2010-01-01 to present sst V2.1 NOAA
Daily Daily
SST OSTIA L4 1/20° From 2010-01-01 to present analysed_sst v1 CMEMS
Daily Daily
SST CMC L4 0.2°/0.1° From 2010-01-01 to present analysed_sst v2/v3 JPL
Daily Daily
SST RSS L4 ~9km From 2010-01-01 to present sst
error
mask
v05 RSS
Daily Daily
CMORPH L4 0.25° From 2010-01-01 to present cmorph NOAA CPC
3 hours Daily
TRMM L3 0.25° From 2010-01-01 to present precipitation v7 GES DISC
3 hours Daily
IMERG L4 0.1° From 2010-01-01 to present precipitationCal v07B EODIS
30 min Daily
CHLA L4 0.25° From 2010-01-01 to present CHL1_mean
CHL1_flags
MODIS (AV, GSM) GLOBCOLOUR
8 days
Monthly
Daily
CDM L4 0.25° From 2010-01-01 to present CDM_mean
CDM_flags
CDM_errors
MODIS GLOBCOLOUR
8 days
Monthly
Daily
GLOBCURRENT L4 0.25° From 2010-01-01 to 2019-06-19 northward_geostrophic_current_velocity
eastward_geostrophic_current_velocity
v03 GLOBCURRENT
Daily -
COPERNICUS-GLOBCURRENT L4 0.25° From 2010-01-01 to 2020-05-31 eastward_sea_water_velocity
northward_sea_water_velocity
- CMEMS
Daily Yearly
COPERNICUS-GLOBCURRENT L4 0.25° From 2019-01-01 to present eastward_sea_water_velocity
northward_sea_water_velocity
- CMEMS
Daily Daily
OSCAR L4 0.25° From 2010-01-01 to present u
v
v2 ESR
Daily Daily
OAFLUX L4 From 2010-01-01 to 2020-12-31 evapr
wind
v3 WHOI
Daily ~ 6 months
WINDSAT L2 0.25° From 2010-01-01 to present sst
wspdLF
wspdMF
rain
windAW
wdir
v7.0.1 RSS
Daily
3days
weekly
monthly
Daily
AMSR-E L2 0.25° From 2010-01-01 to 2011-10-11 sst
wspdLF
wspdMF
rain
v07 RSS
Daily
3days
weekly
monthly
-
AMSR-2 L2 0.25° From 2012-07-02 to present sst
wspdLF
wspdMF
rain
v08 RSS
Daily
3days
weekly
monthly
Daily
SSMI (f15, f16, f17, f18) L2 0.25° From 2010-01-01 to present wind
rain
v07 RSS
Daily
3days
weekly
monthly
Daily
GMI L2 0.25° From 2014-03-04 to present sst
wspdLF
wspdMF
rain
v08.2 RSS
Daily
3days
weekly
monthly
Daily
CCMP L4 0.25° From 1987-07-10 to present uwnd
vwnd
v2.0 RSS
6 hours Daily
AVISO SLA (NRT) L4 0.25° From 2019-01-01 to present sla SEALEVEL_GLO_PHY_L4_
NRT_OBSERVATIONS_008_046
CMEMS
Daily Daily
AVISO SLA (REP) L4 0.25° From 2010-01-01 to 2019-01-12 sla SEALEVEL_GLO_PHY_L4_
REP_OBSERVATIONS_008_047
CMEMS
Daily Daily
GPCP v3
OAFLUX-HR WHOI
ASCAT L3 0.25° From 2010-01-01 to present wind_speed
wind_stress
surface_downward_eastward_stress
surface_downward_northward_stress
IFREMER
Daily Daily
Altimeter waves From 2010-01-01 to 2017-01 GLOBWAVE
Daily -
PROCESS STUDY DEDICATED DATASETS
Dataset Name Level Spatial resolution Temporal coverage Variables Version Provider
Temporal resolution Update frequency
River discharge SO HYBAM
SMOS SSS L3 Arctic v2 - 9 Days (CATDS-CEC-LOCEAN) L3 25 km From 2010-06-01 to 2023-08-30 SSS v2 CATDS CEC LOCEAN
9 days -
SMOS SSS L3 Arctic v2 - 18 days (CATDS-CEC-LOCEAN) L3 25 km From 2010-06 to 2023-08-30 SSS v2 CATDS CEC LOCEAN
18 days (every 4 days) -
SMOS SSS L3 Arctic OA v2 - 9 Days (BEC) L3 0.25° From 2011-01-01 to 2017-12-31 oa_sss v2 BEC
9 days -
SMOS SSS L3 MED-ATL-OA v2 - 9 Days (BEC) L3 0.25° From 2011-01-01 to 2016-12-31 oa_sss v2 BEC
9 days -
SMOS SSS L3 Arctic v4 - 9 Days (BEC) L3 25 km From 2011-01-01 to 2022-12-31 sss v4 BEC
9-day running -
SMOS SSS L3 Baltic v1 - 9 Days (BEC) L3 0.25° From 2011-02-05 to 2019-12-27 sss v1 BEC
9-day running -
SMOS SSS L4 Baltic v1 - Daily (BEC) L4 0.05° From 2011-02-05 to 2019-12-27 sss v1 BEC
Daily -
SMOS SSS L3 Southern Ocean v1 - 9-Day running mean (BEC) L3 25 km From 2011-02-05 to 2023-04-04 sss v1 BEC
9-day running -
Mesoscale eddies 0.25° From 1993-01-01 to 2017-01-06 v4 Chelton & Schlax
Aviso
Daily Yearly
ARCTIC_ANALYSIS_
FORECAST_PHYS_002_001_a
L4 1/8° (12 depth levels) From 2011-10-19 to present sea_water_salinity (S) CMEMS
Daily Daily
Aquarius SSS L4 ATL-OI - Weekly (IPRC) L4 0.25° From 2011-09-01 to 2015-06-03 sss v5 IPRC
Weekly end of mission data
Aquarius SSS L4 ATL-OI - Monthly (IPRC) L4 0.25° From 2011-09-01 to 2015-06-03 sss v5 IPRC
Monthly end of mission data
Tropical Cyclone tracks From 1842 to present v04 IbTracks
Daily