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EUMETCast User Forum: 
Future Satellite Services 
François Montagner
Future Satellite Services 
• Copernicus Sentinel-3 Products Overview 
• Copernicus Sentinel-3 Products Dissemination 
EUM/OPS/VWG/14/772637 
17 September 2014
Sentinel-3 Satellite and Payload 
EUM/OPS/VWG/14/772637 
17 September 2014 
• SLSTR: Sea and Land Surface 
Temperature Radiometer 
• SRAL: Synthetic Aperture Radar Altimeter 
• OLCI: Ocean and Land Colour Instrument 
• MWR: Micro-Wave Radiometer 
• LRR: Laser Retro-Reflector 
• DORIS: Doppler Orbitography and 
Radiopositionning Integrated by Satellite 
• STM: Surface Topography Mission = SRAL 
+ MWR
Sentinel-3 Marine product contents 
Level 1B: SLTSR (radiance, BT at TOA) and OLCI (radiance at TOA) and 
Level 2 OLCI: 
• Normalised water surface reflectance 
• Algal pigment concentration for open and 
for coastal waters 
• Total suspended matter concentration 
• Diffuse attenuation coefficient 
• Coloured dissolved matter absorption 
• Photosynthetically active radiation 
• Integrated water vapour 
• Aerosol optical depth 
• Aerosol Angström exponent 
EUM/OPS/VWG/14/772637 
17 September 2014 
Level 2 SLTSR: 
• Sea surface temperature 
(L2P GHRSST standard) 
Level 2 SRAL: 
• Sea/coastal zone surface height 
• Significant wave height 
• Wind speed 
• Backscatter coefficient s0 
• Sea ice height, freeboard 
• Total water, liquid water (from MWR) 
SRAL(waveforms) 
(ESA and EUMETSAT)
Sentinel-3 Land / Sea masks (1/2) 
Land/sea masks apply to Level 2 products only. Level 1 products make no 
distinction, and provide the mask as annotation data. 
Optical products (OLCI, SLSTR, Synergy): land and water masks are fully complementary 
OLCI Level 2 Products: The Land and Water split 
and do not overlap. Major lakes are flagged as “sea”. 
Examples extracted by a simulation of 3 minutes frame for OLCI Level 2 Full Resolution products 
Land OL_2_LFR Marine OL_2_WFR 
Water is masked in blue, no values 
are provided for these pixels. 
EUM/OPS/VWG/14/772637 
17 September 2014 
Land is masked in grey, no values are 
provided for these pixels 
Example of geophysical product: 
OLCI Terrestrial Chlorophyll Index (OTCI) 
Example of geophysical product: 
Chlorophyll Concentration for open ocean waters (CHL_OC4ME) 
The Land and Water masks are 
perfectly complementary. 
The cloud mask is also provided in white for a better 
interpretation of the information.
Sentinel-3 Land / Sea masks (2/2) 
Altimetry products (SRAL): masks do overlap inside and outside the coastline. 
SRAL Level 2 Marine and Land Products are split according to the figure below 
EUM/OPS/VWG/14/772637 
17 September 2014 
SRAL Subsatellite Track 
SRAL Level 2 Marine Products will contain 
information sensed over the white area (Open 
Ocean and Sea-Ice) and the green area (Coastal 
zones and part of the land within a certain 
distance from the coastline) 
SRAL Level 2 Land Products will contain 
information sensed over the black area (Land) 
and the green area (Coastal zones and part of 
the land within a certain distance from the 
coastline) 
Coastal Area (up to 300km from the 
coastline) and part of the Land (few 
km from the coastline) 
Land Area: including 
rivers and Lakes 
Open Ocean 
Both Products will contain the measurements over the coastal areas 
(up to 300 Km offshore) and part of the Land within a few km from the 
coastline
Sentinel-3 Marine optical product characteristics 
Product Spatial res. 
Product resolution, swath width and accuracy are the required values as per e.g. “Sentinel-3 ESA’s Global Land and Ocean Mission for 
GMES Operational Services”, ESA SP-1322/3 
EUM/OPS/VWG/14/772637 
17 September 2014 
(m) 
Swath width 
(km) 
Accuracy Size + 
(GB/rev) 
OLCI L1 EFR 300 1270 TOAR: 2% 21.47 
OLCI L1 ERR 1200 Idem Idem 1.76 
OLCI L2 WFR 300 Idem Reflectance: 5%@400nm 
Algal pigment: 30% 
(ocean) 
14.19 
OLCI L2 WRR 1200 Idem Idem 1.19 
SLSTR L1B 500 (vis/NIR), 
1000 (TIR) 
740 (dual view) 
1400 (nadir) 
<5% (vis/NIR TOAR) 
0.2K (TIR BT) 
18.56 
SLSTR L2 WST 1000 740 0.3K 0.74 
+ based on estimated compression factor
Sentinel-3 Marine altimetry product characteristics 
Product Sampling Accuracy Size 
EUM/OPS/VWG/14/772637 
17 September 2014 
(GB/rev) 
SRAL L1B Waveform rate : 20 Hz 0.75 
SRAL L2 WAT Reduced (or LRM) : 1 Hz 
Standard : 1 Hz, 20 Hz 
Extended: 20 Hz + 
waveforms 
SSH: 10 cm (NRT), 3.5cm (STC) 
SWH: 4% (NRT), 1% (STC) 
Wind: 2 m.s-1 (NRT), 1.5m.s-1 (STC) 
0.20 
Product resolution, swath width and accuracy are the required values as per e.g. “Sentinel-3 ESA’s Global Land and Ocean Mission for 
GMES Operational Services”, ESA SP-1322/3
Sentinel-3 Product Formats 
• The Sentinel-3 Products are organised in packages, using a 
restriction of the CCSDS XML Formatted Data Unit (XFDU) 
specific for the Sentinel-3 mission. 
EUM/OPS/VWG/14/772637 
17 September 2014 
XML 
format 
NetCDF-4 
format
Sentinel-3 Products Timeliness 
NRT products 
STC products 
EUM/OPS/VWG/14/772637 
17 September 2014 
NTC products 
NTC products 
Reprocessing Campaign 
NRT: Near Real time 
STC: Short Time Critical 
NTC: Non time Critical 
Weather and ocean forecasting, 
sea state forecasting 
Operational ocean 
monitoring and forecasting 
Climate monitoring 
Oceanography 
time 
3 h 48 h 30 d ~1/2 y 
Climatology 
Data exploitation for 
science
Sentinel-3 Marine PDGS context 
EUM/OPS/VWG/14/772637 
17 September 2014 
Terrestrial EUMETCast 
considered in addition 
Product 
Dissemination 
Units (PDUs) 
apply to both 
EUMETCast and 
ODA/ORA 
dissemination 
Online Rolling Data Archive 
(ODA/ORA): Supports 
ftp/http access to level 1&2 
PDUs over the Internet
Sentinel-3 Marine Product Dissemination Baseline (1/2) 
Product EUMET-Cast 
ODA/ORA Data 
EUM/OPS/VWG/14/772637 
17 September 2014 
Centre 
Timeliness Resol. Rate 
(Mbps)* 
OLCI L1 EFR    NRT full 29.02 
OLCI L1 EFR   NTC full 
OLCI L1 ERR    NRT red. 2.38 
OLCI L1 ERR   NTC red. 
OLCI L2 WFR   NRT, NTC full 
OLCI L2 WRR    NRT red. 1.60 
OLCI L2 WRR   NTC red. 
SLSTR L1B   NRT, NTC full 
SLSTR L2 WST    NRT full 1.00 
SLSTR L2 WST   NTC full 
* EUMETCast only
Sentinel-3 Marine Product Dissemination Baseline (2/2) 
Product EUMETCast ODA/ORA Data 
EUM/OPS/VWG/14/772637 
17 September 2014 
Centre 
Timeliness Resol. Rate 
(Mbps)* 
SRAL L1A+   STC, NTC full 
SRAL L1B    NRT, STC full 1.01 + 1.01 
SRAL L1B   NTC full 
SRAL L1BS+   STC, NTC full 
SRAL L2 WAT    NRT, STC full 0.83 + 0.83 
SRAL L2 WAT   NTC full 
* EUMETCast only 
+ Day 2 evolution
Sentinel-3 Services Ramp-up Schedule 
Similarly, data access is 
gradually open to all 
users from early stages 
of mission 
S-3A commissioning phase: 
Launch + 5 months 
EUM/OPS/VWG/14/772637 
17 September 2014 
S-3A spacecraft 
commissioning S-3A ramp-up: operational qualification 
Milestone 1: Spacecraft 
IOCR (S-3A Launch + 5 
months) 
Milestone 2: PDGS 
commissioning review (S-3A 
Launch + TBD months) 
S-3A routine 
operations 
Milestone 3: routine 
operations review 
Data provision mainly to 
Sentinel-3 calibration validation 
team as and when ready. Test 
technical interfaces for data 
provision to Copernicus core 
services. 
Start gradual data provision to 
Copernicus core services and 
collaborative ground segment 
(national mirror sites). 
Full data provision to 
Copernicus core services and 
collaborative ground segment 
(national mirror sites). Gradual 
data provision to scientific and 
other users. 
Full data provision to all 
users. 
S-3A 
launch 
M1: S-3A 
IOCR 
M2: S-3A 
Commissioning review 
M3: S-3A 
Routine ops review 
Subsets of L0, L1, L2 to 
S-3 cal & val team 
Official release of 
Level 1 
User data products are 
gradually qualified and 
operationally certified

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Sentinel-3 Future Products Overview - EUMETCast User Forum 2014

  • 1. EUMETCast User Forum: Future Satellite Services François Montagner
  • 2. Future Satellite Services • Copernicus Sentinel-3 Products Overview • Copernicus Sentinel-3 Products Dissemination EUM/OPS/VWG/14/772637 17 September 2014
  • 3. Sentinel-3 Satellite and Payload EUM/OPS/VWG/14/772637 17 September 2014 • SLSTR: Sea and Land Surface Temperature Radiometer • SRAL: Synthetic Aperture Radar Altimeter • OLCI: Ocean and Land Colour Instrument • MWR: Micro-Wave Radiometer • LRR: Laser Retro-Reflector • DORIS: Doppler Orbitography and Radiopositionning Integrated by Satellite • STM: Surface Topography Mission = SRAL + MWR
  • 4. Sentinel-3 Marine product contents Level 1B: SLTSR (radiance, BT at TOA) and OLCI (radiance at TOA) and Level 2 OLCI: • Normalised water surface reflectance • Algal pigment concentration for open and for coastal waters • Total suspended matter concentration • Diffuse attenuation coefficient • Coloured dissolved matter absorption • Photosynthetically active radiation • Integrated water vapour • Aerosol optical depth • Aerosol Angström exponent EUM/OPS/VWG/14/772637 17 September 2014 Level 2 SLTSR: • Sea surface temperature (L2P GHRSST standard) Level 2 SRAL: • Sea/coastal zone surface height • Significant wave height • Wind speed • Backscatter coefficient s0 • Sea ice height, freeboard • Total water, liquid water (from MWR) SRAL(waveforms) (ESA and EUMETSAT)
  • 5. Sentinel-3 Land / Sea masks (1/2) Land/sea masks apply to Level 2 products only. Level 1 products make no distinction, and provide the mask as annotation data. Optical products (OLCI, SLSTR, Synergy): land and water masks are fully complementary OLCI Level 2 Products: The Land and Water split and do not overlap. Major lakes are flagged as “sea”. Examples extracted by a simulation of 3 minutes frame for OLCI Level 2 Full Resolution products Land OL_2_LFR Marine OL_2_WFR Water is masked in blue, no values are provided for these pixels. EUM/OPS/VWG/14/772637 17 September 2014 Land is masked in grey, no values are provided for these pixels Example of geophysical product: OLCI Terrestrial Chlorophyll Index (OTCI) Example of geophysical product: Chlorophyll Concentration for open ocean waters (CHL_OC4ME) The Land and Water masks are perfectly complementary. The cloud mask is also provided in white for a better interpretation of the information.
  • 6. Sentinel-3 Land / Sea masks (2/2) Altimetry products (SRAL): masks do overlap inside and outside the coastline. SRAL Level 2 Marine and Land Products are split according to the figure below EUM/OPS/VWG/14/772637 17 September 2014 SRAL Subsatellite Track SRAL Level 2 Marine Products will contain information sensed over the white area (Open Ocean and Sea-Ice) and the green area (Coastal zones and part of the land within a certain distance from the coastline) SRAL Level 2 Land Products will contain information sensed over the black area (Land) and the green area (Coastal zones and part of the land within a certain distance from the coastline) Coastal Area (up to 300km from the coastline) and part of the Land (few km from the coastline) Land Area: including rivers and Lakes Open Ocean Both Products will contain the measurements over the coastal areas (up to 300 Km offshore) and part of the Land within a few km from the coastline
  • 7. Sentinel-3 Marine optical product characteristics Product Spatial res. Product resolution, swath width and accuracy are the required values as per e.g. “Sentinel-3 ESA’s Global Land and Ocean Mission for GMES Operational Services”, ESA SP-1322/3 EUM/OPS/VWG/14/772637 17 September 2014 (m) Swath width (km) Accuracy Size + (GB/rev) OLCI L1 EFR 300 1270 TOAR: 2% 21.47 OLCI L1 ERR 1200 Idem Idem 1.76 OLCI L2 WFR 300 Idem Reflectance: 5%@400nm Algal pigment: 30% (ocean) 14.19 OLCI L2 WRR 1200 Idem Idem 1.19 SLSTR L1B 500 (vis/NIR), 1000 (TIR) 740 (dual view) 1400 (nadir) <5% (vis/NIR TOAR) 0.2K (TIR BT) 18.56 SLSTR L2 WST 1000 740 0.3K 0.74 + based on estimated compression factor
  • 8. Sentinel-3 Marine altimetry product characteristics Product Sampling Accuracy Size EUM/OPS/VWG/14/772637 17 September 2014 (GB/rev) SRAL L1B Waveform rate : 20 Hz 0.75 SRAL L2 WAT Reduced (or LRM) : 1 Hz Standard : 1 Hz, 20 Hz Extended: 20 Hz + waveforms SSH: 10 cm (NRT), 3.5cm (STC) SWH: 4% (NRT), 1% (STC) Wind: 2 m.s-1 (NRT), 1.5m.s-1 (STC) 0.20 Product resolution, swath width and accuracy are the required values as per e.g. “Sentinel-3 ESA’s Global Land and Ocean Mission for GMES Operational Services”, ESA SP-1322/3
  • 9. Sentinel-3 Product Formats • The Sentinel-3 Products are organised in packages, using a restriction of the CCSDS XML Formatted Data Unit (XFDU) specific for the Sentinel-3 mission. EUM/OPS/VWG/14/772637 17 September 2014 XML format NetCDF-4 format
  • 10. Sentinel-3 Products Timeliness NRT products STC products EUM/OPS/VWG/14/772637 17 September 2014 NTC products NTC products Reprocessing Campaign NRT: Near Real time STC: Short Time Critical NTC: Non time Critical Weather and ocean forecasting, sea state forecasting Operational ocean monitoring and forecasting Climate monitoring Oceanography time 3 h 48 h 30 d ~1/2 y Climatology Data exploitation for science
  • 11. Sentinel-3 Marine PDGS context EUM/OPS/VWG/14/772637 17 September 2014 Terrestrial EUMETCast considered in addition Product Dissemination Units (PDUs) apply to both EUMETCast and ODA/ORA dissemination Online Rolling Data Archive (ODA/ORA): Supports ftp/http access to level 1&2 PDUs over the Internet
  • 12. Sentinel-3 Marine Product Dissemination Baseline (1/2) Product EUMET-Cast ODA/ORA Data EUM/OPS/VWG/14/772637 17 September 2014 Centre Timeliness Resol. Rate (Mbps)* OLCI L1 EFR    NRT full 29.02 OLCI L1 EFR   NTC full OLCI L1 ERR    NRT red. 2.38 OLCI L1 ERR   NTC red. OLCI L2 WFR   NRT, NTC full OLCI L2 WRR    NRT red. 1.60 OLCI L2 WRR   NTC red. SLSTR L1B   NRT, NTC full SLSTR L2 WST    NRT full 1.00 SLSTR L2 WST   NTC full * EUMETCast only
  • 13. Sentinel-3 Marine Product Dissemination Baseline (2/2) Product EUMETCast ODA/ORA Data EUM/OPS/VWG/14/772637 17 September 2014 Centre Timeliness Resol. Rate (Mbps)* SRAL L1A+   STC, NTC full SRAL L1B    NRT, STC full 1.01 + 1.01 SRAL L1B   NTC full SRAL L1BS+   STC, NTC full SRAL L2 WAT    NRT, STC full 0.83 + 0.83 SRAL L2 WAT   NTC full * EUMETCast only + Day 2 evolution
  • 14. Sentinel-3 Services Ramp-up Schedule Similarly, data access is gradually open to all users from early stages of mission S-3A commissioning phase: Launch + 5 months EUM/OPS/VWG/14/772637 17 September 2014 S-3A spacecraft commissioning S-3A ramp-up: operational qualification Milestone 1: Spacecraft IOCR (S-3A Launch + 5 months) Milestone 2: PDGS commissioning review (S-3A Launch + TBD months) S-3A routine operations Milestone 3: routine operations review Data provision mainly to Sentinel-3 calibration validation team as and when ready. Test technical interfaces for data provision to Copernicus core services. Start gradual data provision to Copernicus core services and collaborative ground segment (national mirror sites). Full data provision to Copernicus core services and collaborative ground segment (national mirror sites). Gradual data provision to scientific and other users. Full data provision to all users. S-3A launch M1: S-3A IOCR M2: S-3A Commissioning review M3: S-3A Routine ops review Subsets of L0, L1, L2 to S-3 cal & val team Official release of Level 1 User data products are gradually qualified and operationally certified