| Please contact the CoastWatch HelpDesk (coastwatch.info@noaa.gov) to coordinate routine and automated downloads. |
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Search and Data Access Tools
CoastWatch Data Portal: Show S3A chlorophyll; Show S3B chlorophyll
L1,L2 Granule Selector Tool for L1, L2 data: Show OLCI
Level-2 Space and Time Search Tool for L2 data : Link
L3 CoastWatch CONUS Regional Data Near Real-time Searches:
THREDDS
3A & 3B
Global NRT
Aggregated View and Per File View for each
Top Level Catalog Link for OLCI Sentinel 3A and Sentinel 3B near real time, global, ocean color (from EUMETSAT native L2)
Sentinel 3A
Hi-res (300 m) global sectors mapped daily merge (216 sectors, AA through RL; see CoastWatch hi-res OLCI sector map under description tab)
- Chlorophyll
- Kd 490
- Rrs (400 nm, 412 nm, 442 nm, 490 nm, 510 nm, 560 nm, 620 nm, 665 nm, 674 nm, 681 nm, 709 nm, 754 nm, 779 nm)
VIIRS-res (750 m) global sectors mapped daily merge (24 sectors to match VIIRS sectors; see sector VIIRS sector map under description tab)
- Chlorophyll
- Kd 490
- Rrs (400 nm, 412 nm, 442 nm, 490 nm, 510 nm, 560 nm, 620 nm, 665 nm, 674 nm, 681 nm, 709 nm, 754 nm, 779 nm)
Global 4 km mapped daily merge (1 file per day)
- Chlorophyll
- Kd 490
- Rrs (400 nm, 412 nm, 442 nm, 490 nm, 510 nm, 560 nm, 620 nm, 665 nm, 674 nm, 681 nm, 709 nm, 754 nm, 779 nm)
Sentinel 3B
Hi-res (300 m) global sectors mapped daily merge (216 sectors, AA through RL; see CoastWatch hi-res OLCI sector map under description tab)
- Chlorophyll
- Kd 490
- Rrs (400 nm, 412 nm, 442 nm, 490 nm, 510 nm, 560 nm, 620 nm, 665 nm, 674 nm, 681 nm, 709 nm, 754 nm, 779 nm)
VIIRS-res (750 m) global sectors mapped daily merge (24 sectors to match VIIRS sectors; see VIIRS sector map under description tab)
- Chlorophyll
- Kd 490
- Rrs (400 nm, 412 nm, 442 nm, 490 nm, 510 nm, 560 nm, 620 nm, 665 nm, 674 nm, 681 nm, 709 nm, 754 nm, 779 nm)
Global 4 km mapped daily merge (1 file per day)
- Chlorophyll
- Kd 490
- Rrs (400 nm, 412 nm, 442 nm, 490 nm, 510 nm, 560 nm, 620 nm, 665 nm, 674 nm, 681 nm, 709 nm, 754 nm, 779 nm)
CoastWatch Level-3 Mapped Regions for chlorophyll, Kd490, Rrs665 and Rrs681 (example dataset ~March to June 2019):
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Please contact the CoastWatch HelpDesk (coastwatch.info@noaa.gov) to coordinate routine and automated downloads. |
The Sentinels are a suite of satellite missions developed to serve the operational needs of the European Copernicus program for Earth observations. NOAA CoastWatch/OceanWatch provides Sentinel data to US users through official arrangements with ESA, EUMETSAT and the European Commission.
Sentinel-3 is a multi-instrument mission to measure sea- and land-surface temperature, ocean and land color and sea-surface topography. Sentinel-3A was launched on 16 February 2016. Sentinel 3B launched on 25 April 2018 with the same suite of instruments.
The Ocean and Land Colour Instrument (OLCI) is based on heritage from Envisat’s Medium Resolution Imaging Spectrometer (MERIS) to measure visible and thermal infrared radiances with which to generate true color, ocean color radiances and derived products such as chlorophyll, total suspended matter (TSM), diffuse attenuation coefficient at 490 nm (Kd(490)), absorption at 443 nm (a(443), and normalized fluorescence line height (nflh). OLCI has 21 bands at wavelengths from 400 nm to 1020 nm (400, 412, 442, 490, 510, 560, 620, 665, 674, 681, 709, 754, 779, 865, 885, 1024 nm), a spatial resolution of ~300 m (at nadir) and a swath width of 1270 km.
CoastWatch distributes EUMETSAT native products (L2) also generates and serves mapped and composited products (L3) for US Coastal regions ("CONUS") and global sectors. Global sectors are "hi-res" 300 m 216 sectors (AA through RL, Figure 1) and "VIIRS-res" 750 m 24 sectors which match VIIRS ocean color (Figure 2). See the data access tab for product lisitings and links.
See the ESA Sentinel-3 website♦ for more information: http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/Sentinel-3/Introducing_Sentinel-3♦
OLCI Level 1b (e.g., true color) and ocean color Level 2 data (e.g., radiances, chlorophyll, etc.) are generated by EUMETSAT (https://www.eumetsat.int/website/home/Data/Products/Ocean/index.html♦) and served by CoastWatch.
See the EUMETSAT ocean data product pages for more information and links to specific documents: https://www.eumetsat.int/website/home/Data/Products/Ocean/index.html♦
(♦ - non-government website)